{"filings":[{"id":1471437,"accession_number":"0001104659-26-080744","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2026-07-06T20:06:25+00:00","items":["8.01","9.01"],"status":"ready","headline":"ClearSign Technologies recommences ATM offering for up to $6.875M in common stock","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["On July 6, 2026, ClearSign filed a prospectus supplement to recommence its ATM offering under the Sales Agreement with H.C. Wainwright.","The company may offer and sell up to $6,875,000 in shares of common stock.","The offering is made under the existing S-3 registration statement (File No. 333-288736) effective July 28, 2025.","A legal opinion from Mitchell Silberberg & Knupp LLP is filed as Exhibit 5.1."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":1138727,"accession_number":"0001104659-26-075734","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2026-06-18T20:15:25+00:00","items":["8.01","9.01"],"status":"ready","headline":"ClearSign closes full over-allotment of 116,667 shares for ~$471K net proceeds","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Underwriter Newbridge Securities purchased 116,667 additional shares at $4.33 each, fully exercising the over-allotment option.","Net proceeds to ClearSign were approximately $470,858 after underwriting discounts and estimated expenses.","Proceeds will be used for working capital, R&D, marketing, sales, and general corporate purposes.","The over-allotment was part of a firm-commitment public offering that initially closed June 1, 2026."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":946404,"accession_number":"0001104659-26-071865","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2026-06-09T20:30:35+00:00","items":["5.07","9.01"],"status":"ready","headline":"ClearSign shareholders elect all four board nominees, approve equity plan and auditor at 2026 annual meeting","summary_kind":"llm","event_type":"other","confidence":"high","bullets":["All four director nominees elected: Basenese, Deller, DiGiandomenico, Silva (each with >74% of votes cast excluding broker non-votes).","BPM CPA LLP ratified as independent auditor for FY2026 with 3,263,437 for vs 394,510 against.","Amended 2021 Equity Incentive Plan approved with 1,546,015 for vs 659,279 against (excluding 1,453,588 broker non-votes).","Advisory say-on-pay passed with 1,826,151 for vs 379,205 against; adjournment proposal also approved.","Quorum of 3,666,852 shares (67.79% of voting power) present at meeting held June 8, 2026."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.15,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":759959,"accession_number":"0001104659-26-068614","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2026-06-01T12:30:28+00:00","items":["1.01","8.01","9.01"],"status":"ready","headline":"ClearSign Technologies prices 777,780-share public offering at $4.33/share for ~$3.37M gross proceeds","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["777,780 shares priced at $4.33/share; gross proceeds $3.37M (up to $3.87M with 30-day over-allotment option).","Net proceeds estimated at $2.94M after underwriting discounts and estimated offering expenses.","Offering expected to close June 1, 2026; Newbridge Securities is sole book-running manager.","Proceeds to be used for working capital, R&D, marketing, sales, and general corporate purposes.","Officers and directors enter 90-day lock-up; underwriter has option for additional 116,667 shares."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":722317,"accession_number":"0001104659-26-067517","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2026-05-28T20:19:02+00:00","items":["8.01","9.01"],"status":"ready","headline":"ClearSign Technologies suspends ATM prospectus supplement for $10.39 million common stock offering; no shares sold","summary_kind":"llm","event_type":"regulatory","confidence":"high","bullets":["On May 26, 2026, ClearSign notified H.C. Wainwright of suspension and termination of the ATM prospectus supplement filed July 17, 2025.","The ATM program allowed sale of up to $10.39 million in common stock, but no shares were sold before suspension.","The ATM Agreement remains in effect, but no sales will occur until a new prospectus supplement is filed.","Termination relates to shelf registration statement Form S-3 (File No. 333-288736) effective July 28, 2025."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":582801,"accession_number":"0001104659-26-065175","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2026-05-21T20:30:33+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"ClearSign Q1 cash $7.7M; operational progress with multiple burner orders and DOE testing","summary_kind":"llm","event_type":"other_material","confidence":"medium","bullets":["Cash and cash equivalents $7.7M as of March 31, 2026; shares outstanding 5,409,133 after 1-for-10 reverse split.","Received 'M1' Series burner order for midstream heater in West Texas, delivery Q3 2026.","Received order for next phase of 32-burner retrofit project at a California refinery (physical testing).","Successful sub-5ppm DOE/SBIR flexible fuel burner testing (ClearSign Core Gen 2, 100% hydrogen capable).","Received fifth low-emission flare order from California energy company, total enclosed flare system, delivery Q3 2026."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.55,"calibrated_materiality_score":0.55,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":92835,"accession_number":"0001104659-26-042017","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2026-04-10T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"ClearSign Q4 revenue $3.7M record; FY revenue $5.2M +44% YoY","summary_kind":"llm","event_type":"earnings","confidence":"high","bullets":["Q4 2025 revenue $3.7M (record); FY revenue $5.2M, up 44% YoY.","Cash $9.2M at Dec 31, 2025; 5.33M shares outstanding post 1-for-10 reverse split.","Orders for 68 ClearSign Core burners from Gulf Coast and California refiners; also flare order.","Successful DOE/NETL testing of 100% hydrogen-capable ClearSign Core-2 burner.","Backlog includes new heater configurations; management expects continued momentum."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.65,"calibrated_materiality_score":0.65,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":104001,"accession_number":"0001104659-26-036808","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2026-03-30T23:59:59+00:00","items":["8.01","9.01"],"status":"ready","headline":"ClearSign regains Nasdaq minimum bid price compliance; matter closed","summary_kind":"llm","event_type":"regulatory","confidence":"high","bullets":["Received Nasdaq letter on March 30, 2026 confirming compliance with Listing Rule 5550(a)(2).","Common stock closing bid price at or above $1.00 for ten consecutive business days.","Compliance matter now closed; no further delisting risk from this requirement."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.4,"calibrated_materiality_score":0.4,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":104000,"accession_number":"0001104659-26-025867","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2026-03-10T23:59:59+00:00","items":["3.03","5.03","7.01","9.01"],"status":"ready","headline":"ClearSign Technologies announces 1-for-10 reverse stock split effective March 16, 2026","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Reverse stock split ratio 1-for-10, effective 12:01 a.m. ET on March 16, 2026.","Pre-split shares ~54.1M; post-split ~5.41M; authorized shares and par value unchanged.","Split intended to regain compliance with Nasdaq $1.00 minimum bid price requirement.","Fractional shares rounded up; proportionate adjustments to warrants and equity awards.","CUSIP changes to 185064201; trading symbol remains CLIR."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":103999,"accession_number":"0001104659-26-023536","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2026-03-04T23:59:59+00:00","items":["5.07","5.08","9.01"],"status":"ready","headline":"ClearSign shareholders approve reverse stock split for Nasdaq compliance; annual meeting set for June 8, 2026","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Reverse stock split approved at ratio between 1-for-2 and 1-for-10, with board discretion to abandon.","Proposal passed with 26,667,027 votes for, 9,224,242 against, and 77,216 abstentions (74% support).","2026 annual meeting scheduled for June 8, 2026; record date fixed as April 13, 2026.","Deadline for Rule 14a-8 proposals and director nominations under bylaws is March 14, 2026."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":103998,"accession_number":"0001104659-26-019768","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2026-02-25T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"ClearSign Technologies holds corporate update call; no specific financial results disclosed","summary_kind":"llm","event_type":"other","confidence":"low","bullets":["Company held a conference call on Feb 24, 2026, to discuss preliminary unaudited Q4/FY2025 results and corporate updates.","Special meeting is scheduled for later that week; call served as a business update ahead of the meeting.","Preliminary financial data discussed is unaudited, subject to change, and not reviewed by auditor BPM CPA LLP.","Transcript of the call furnished as Exhibit 99.1, but no actual financial figures were included in the provided excerpt."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.2,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":103997,"accession_number":"0001104659-26-001752","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2026-01-07T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"ClearSign preliminary Q4 revenue ~$3.6M (+510% YoY), FY revenue ~$5.2M (+44% YoY)","summary_kind":"llm","event_type":"earnings","confidence":"high","bullets":["Preliminary Q4 2025 revenue of approx $3.6M, up 510% from $590K in Q4 2024.","Preliminary FY 2025 revenue of approx $5.2M, up 44% from $3.6M in FY 2024.","Q4 performance driven by completion of a 26-burner order for a U.S. Gulf Coast petrochemical facility.","Revenue also included testing, engineering, flares, and service work across multiple product lines.","CEO expects growth trajectory to sustain or exceed in 2026, citing expanded burner portfolio and order pipeline."],"consensus_eps_estimate":null,"consensus_eps_actual":-0.99,"consensus_revenue_estimate":null,"consensus_revenue_actual":5234000.0,"consensus_period":"2025-FY","consensus_source":"xbrl_only","sentiment":"positive","materiality_score":0.8,"calibrated_materiality_score":0.8,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":120273,"accession_number":"0001104659-25-119321","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2025-12-08T23:59:59+00:00","items":["7.01","9.01"],"status":"ready","headline":"ClearSign Technologies posts new investor presentation on website for upcoming meetings","summary_kind":"llm","event_type":"other","confidence":"low","bullets":["Investor presentation posted to Company website on December 8, 2025.","Presentation intended for use in upcoming investor meetings and conferences.","No financial results or material changes disclosed in the filing."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.1,"calibrated_materiality_score":0.1,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":120272,"accession_number":"0001104659-25-114991","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2025-11-21T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"ClearSign reports Q3 2025 update: cash $10.5M, multiple new burner orders","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Cash and equivalents of $10.5M as of Sep 30, 2025; 52.5M shares outstanding.","Received two M25 burner orders from Devco for gas processing facilities in NM and TX.","Fourth low-emission flare burner order from a major California energy producer for Q2 2026 installation.","32-burner CFD engineering order from a global supermajor for California refinery retrofit.","36-process-burner engineering order from an integrated producer for Texas Gulf Coast refinery."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.55,"calibrated_materiality_score":0.55,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":120271,"accession_number":"0001104659-25-113241","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2025-11-17T23:59:59+00:00","items":["5.03","8.01","9.01"],"status":"ready","headline":"ClearSign adopts majority voting for director elections and tightens stockholder proposal rules","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Board amended bylaws to require majority of votes cast for director elections, except plurality when nominees exceed seats.","Stockholder proposal and nomination deadlines extended; proponents must prove continuous beneficial ownership until meeting date.","Revised award agreements change governing law and venue from Washington to Delaware to match state of incorporation."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":136864,"accession_number":"0001104659-25-095017","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2025-09-30T23:59:59+00:00","items":["3.01","9.01"],"status":"ready","headline":"ClearSign receives Nasdaq extension to March 2026 to regain $1 bid price compliance","summary_kind":"llm","event_type":"regulatory","confidence":"high","bullets":["Received 180-day extension from Nasdaq; compliance deadline now March 30, 2026.","Must achieve closing bid price of $1 for 10 consecutive business days to regain compliance.","Company stated it intends to use a reverse stock split if necessary to meet the requirement.","Failure to comply could lead to delisting; appeal rights would be available.","Stock continues trading on Nasdaq Capital Market under symbol CLIR with no immediate effect."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"negative","materiality_score":0.6,"calibrated_materiality_score":0.6,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":136863,"accession_number":"0001104659-25-085648","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2025-08-29T23:59:59+00:00","items":["8.01","9.01"],"status":"ready","headline":"ClearSign regains Nasdaq board independence compliance after director determination","summary_kind":"llm","event_type":"regulatory","confidence":"high","bullets":["Board determined Anthony DiGiandomenico independent; appointed him to Audit Committee on Aug 26, 2025.","G. Todd Silva named Audit Committee chair and audit committee financial expert effective same date.","Nasdaq issued letter on Aug 28, 2025 confirming compliance with Listing Rules 5605(b)(1) and (c)(2)(A).","Board reduced to 5 directors; one vacancy remains due to Aug 4 resignations of de Lacy and Schrecker."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":136862,"accession_number":"0001104659-25-079277","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2025-08-15T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"ClearSign Q2 update: cash $12.3M; new orders and product launches; no revenue disclosed","summary_kind":"llm","event_type":"other_material","confidence":"medium","bullets":["Cash balance $12.3M at June 30; 52.4M shares outstanding.","Received engineering order for enhanced process burner from California refinery.","Launched M-Series process burner with Gulf Coast installation and Colorado order.","Launched co-branded Zeeco CS5 burner line with sub-5ppm NOx/hydrogen capability.","Received boiler burner order for 500HP fire tube burner with M-Series integration."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.5,"calibrated_materiality_score":0.5,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":136861,"accession_number":"0001104659-25-075708","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2025-08-08T23:59:59+00:00","items":["3.01","5.02","8.01","9.01"],"status":"ready","headline":"ClearSign receives Nasdaq non-compliance notice over board independence; two directors resign","summary_kind":"llm","event_type":"regulatory","confidence":"high","bullets":["On August 8, 2025, Nasdaq notified ClearSign it fails board independence and audit committee composition requirements due to resignations of directors de Lacy and Schrecker.","Board had no majority independent directors and audit committee only two independent directors, violating Nasdaq Listing Rules 5605(b)(1) and 5605(c)(2)(A).","Cure period: until earlier of next annual meeting or August 4, 2026; if meeting before Feb 2, 2026, then by Feb 2, 2026.","Board decreased from six to five; Louis J. Basenese appointed to Governance Committee, G. Todd Silva to Compensation Committee.","Resignations were not due to any disagreement with the Company; ClearSign plans to appoint a new independent director."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"negative","materiality_score":0.65,"calibrated_materiality_score":0.65,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":136860,"accession_number":"0001104659-25-071166","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2025-07-28T23:59:59+00:00","items":["5.07","9.01"],"status":"ready","headline":"ClearSign annual meeting: three directors re-elected with large withhold votes; board reduced to six","summary_kind":"llm","event_type":"other","confidence":"high","bullets":["Six directors re-elected; Catharine de Lacy, Judith Schrecker, G. Todd Silva each had >14M withheld votes.","Board reduced from 7 to 6 as David Maley did not stand for re-election.","Advisory approval of BPM CPA LLP as auditor: 34M for, 2.96M against, 0.13M abstentions.","Advisory say-on-pay passed: 20.4M for, 3.85M against, 2.2M abstentions, 10.6M broker non-votes.","Quorum of 37.1M shares (70.82% of outstanding) present at the meeting."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.15,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":136859,"accession_number":"0001104659-25-068797","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2025-07-18T23:59:59+00:00","items":["1.01","8.01","9.01"],"status":"ready","headline":"ClearSign enters $10.39M ATM equity facility with H.C. Wainwright; terminates prior $8.7M ATM","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Entered ATM Agreement with H.C. Wainwright & Co. for up to $10,390,000 of common stock, dated July 17, 2025.","Proceeds to be used for working capital, R&D, marketing, sales, and general corporate purposes.","Terminated prior ATM with Virtu Americas LLC (up to $8.7M) effective July 12, 2025.","Wainwright to receive 3.0% cash commission on aggregate gross proceeds from sales under new ATM.","Registration statement filed but not yet effective; sales cannot occur until SEC declares it effective."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":136858,"accession_number":"0001104659-25-067452","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2025-07-11T23:59:59+00:00","items":["8.01","9.01"],"status":"ready","headline":"ClearSign Technologies announces Board committee changes effective June 27, 2025","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Catharine de Lacy resigned from Audit Committee; G. Todd Silva and Louis Basenese appointed.","Louis Basenese named Chair of Human Capital & Compensation Committee.","G. Todd Silva appointed to Nominating & Corporate Governance Committee.","David Maley remains on Audit, Compensation, and Governance until end of term after 2025 annual meeting.","Judith Schrecker stays as Audit Chair; de Lacy remains Governance Chair."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.1,"calibrated_materiality_score":0.1,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":154094,"accession_number":"0001104659-25-052998","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2025-05-27T23:59:59+00:00","items":["1.01","5.02","7.01","9.01"],"status":"ready","headline":"ClearSign expands board to 7, appoints Basenese and DiGiandomenico; Maley not standing for re-election","summary_kind":"llm","event_type":"leadership","confidence":"high","bullets":["Board expanded from 5 to 7; appointed Louis Basenese and Anthony DiGiandomenico effective May 22, 2025.","Cooperation agreements with Clarkson and DiGiandomenico parties end activist nominations; standstill and voting commitments.","David Maley will not stand for re-election at 2025 annual meeting; not due to disagreement.","New directors receive RSU compensation; DiGiandomenico declined initial grant for quarter ending June 30, 2025.","Company reimbursed Clarkson up to $2,000 and DiGiandomenico up to $20,000 for expenses."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.65,"calibrated_materiality_score":0.65,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":154093,"accession_number":"0001104659-25-052251","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2025-05-23T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"ClearSign provides Q1 update: cash $12.8M, co-branded burners with Zeeco, M Series sales","summary_kind":"llm","event_type":"other_material","confidence":"medium","bullets":["Cash and equivalents $12.8M at March 31, 2025; 52.4M shares outstanding.","Launched co-branded Zeeco CS5 and Hydrogen CS5 burner lines (100% H2-capable, sub-5 ppm NOx).","Sold first M Series burners via channel partner and directly to heater manufacturer Devco.","Received commitments for first commercial ClearSign Eye sensor installation at a supermajor Gulf Coast refinery.","Received third low-emissions flare burner engineering order from a California energy company."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.5,"calibrated_materiality_score":0.5,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":154092,"accession_number":"0001104659-25-031996","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2025-04-04T23:59:59+00:00","items":["2.02","7.01","3.01","9.01"],"status":"ready","headline":"ClearSign receives Nasdaq bid price deficiency notice; reports record FY2024 revenue of $3.6M","summary_kind":"llm","event_type":"regulatory","confidence":"high","bullets":["Nasdaq notified CLIR on April 1 that bid price below $1 for 30 consecutive business days; 180-day cure period until Sep 29, 2025.","Full year 2024 revenue $3.6M, up from $2.4M in 2023; cash ~$14M as of Dec 31, 2024.","Launched co-branded Zeeco CS5 burner line featuring ClearSign Core technology for low NOx and hydrogen.","Received follow-on purchase order for 26 burners at a Texas petrochemical facility."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"negative","materiality_score":0.8,"calibrated_materiality_score":0.8,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":189726,"accession_number":"0001104659-24-126554","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-12-09T23:59:59+00:00","items":["8.01","9.01"],"status":"ready","headline":"ClearSign regains Nasdaq minimum bid price compliance; continues listing","summary_kind":"llm","event_type":"regulatory","confidence":"high","bullets":["Received Nasdaq notice on Dec 6, 2024 confirming regained compliance with Listing Rule 5550(a)(2).","Stock closed at or above $1.00 for 10 consecutive business days through Dec 5, 2024.","Previously flagged for deficiency on May 2, 2024; matter now closed.","Company's common stock (CLIR) will remain listed on Nasdaq."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":189725,"accession_number":"0001104659-24-121607","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-11-21T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"ClearSign Q3 revenue record $1.85M, up from $85K YoY","summary_kind":"llm","event_type":"earnings","confidence":"medium","bullets":["Record quarterly revenue of $1.85M in Q3 2024 vs $85K in Q3 2023, driven by 20 process burner shipment to California refinery.","Cash and equivalents ~$14.5M as of Sept 30, 2024; 50.2M shares outstanding.","Received initial engineering order for flare retrofit at California production facility; fabrication expected Q2 2025.","Received burner orders from Exotherm for power generation customers in Oklahoma and Missouri.","Received initial engineering order from Birwelco for 26 ClearSign Core burners in multi-heater project at Texas petrochemical plant."],"consensus_eps_estimate":null,"consensus_eps_actual":-0.02,"consensus_revenue_estimate":null,"consensus_revenue_actual":3006000.0,"consensus_period":"2024-FY","consensus_source":"xbrl_only","sentiment":"positive","materiality_score":0.75,"calibrated_materiality_score":0.75,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":189724,"accession_number":"0001104659-24-112653","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-10-30T23:59:59+00:00","items":["3.01","9.01"],"status":"ready","headline":"ClearSign receives Nasdaq extension to April 28, 2025 to regain minimum bid price compliance","summary_kind":"llm","event_type":"regulatory","confidence":"high","bullets":["Granted 180-day extension after stock closed below $1 for 30 consecutive days through May 1, 2024.","Must close at $1.00 per share for 10 consecutive business days by April 28, 2025 to avoid delisting.","Company may pursue a reverse stock split if needed to meet the bid price requirement.","Failure to regain compliance could lead to delisting; company may appeal but no assurance of success.","Listing and trading of CLIR on Nasdaq Capital Market continue for now; no immediate effect."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"negative","materiality_score":0.7,"calibrated_materiality_score":0.7,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":189723,"accession_number":"0001104659-24-105025","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-10-01T23:59:59+00:00","items":["2.05","9.01"],"status":"ready","headline":"ClearSign suspends China operations; expects $400k-$500k in exit costs","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Board approved Aug 22; employees notified Oct 1, 2024.","Subsidiary to be declared dormant; operations cease by Dec 31, 2024.","Estimated $400k-$500k costs: employee termination, equipment disposal, legal fees.","Two employees terminated; costs primarily in Q4 2024.","Suspension due to delayed commercialization progress in China."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"negative","materiality_score":0.5,"calibrated_materiality_score":0.5,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":206232,"accession_number":"0001104659-24-092147","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-08-23T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"ClearSign Q2 update: $16M cash, largest burner order, 26-burner project, board changes","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Received initial engineering order for 26 ClearSign Core burners for four heaters at a Texas Gulf Coast petrochemical facility (Fortune 500 client, partner Birwelco USA).","Sold largest boiler burner to date (~90 MMBTU/hr) to Devco Process Heaters for a Texas gas processing plant; delivery expected Q3 2024.","Closed public offering and private placement with gross proceeds ~$9.3M and ~$4.3M respectively; cash and equivalents ~$16M at June 30, 2024.","Successful start-up of second multi-burner (5-burner) heater at Kern Energy refinery; emissions below guarantee; engineering orders for two more heaters (4 burners total).","Board appointments: David Maley and G. Todd Silva joined Board; Silva replaced Robert T. Hoffman Sr. as clirSPV LLC designee."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.6,"calibrated_materiality_score":0.6,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":206230,"accession_number":"0001104659-24-092489","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K/A","filed_at":"2024-08-23T23:59:59+00:00","items":["5.07","9.01"],"status":"ready","headline":"ClearSign Tech sets annual Say-on-Pay votes after shareholder advisory vote","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Stockholders voted in favor of annual Say-on-Pay votes at June 25, 2024 annual meeting.","Board initially recommended triennial votes but adopted annual frequency after vote.","Company will hold Say-on-Pay votes every year until next advisory vote on frequency.","Decision disclosed via Amendment No. 2 to Form 8-K, filed August 23, 2024."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.15,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":206231,"accession_number":"0001104659-24-086124","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-08-06T23:59:59+00:00","items":["5.02","7.01","9.01"],"status":"ready","headline":"ClearSign appoints G. Todd Silva to board of directors effective August 1, 2024","summary_kind":"llm","event_type":"leadership","confidence":"high","bullets":["Mr. Silva, nominated by clirSPV LLC, fills vacancy created by Robert T. Hoffman, Sr.'s June 2024 resignation.","He brings over 30 years of leadership and finance experience; currently CFO of Radiance Therapeutics.","Mr. Silva will receive quarterly RSU grants of $15,000 under the 2021 Equity Incentive Plan.","Initial RSU grant pro-rated for the portion of Q3 2024 served on the board.","Appointment effective August 1, 2024; no other arrangements or family relationships disclosed."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":223291,"accession_number":"0001104659-24-076344","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K/A","filed_at":"2024-06-28T23:59:59+00:00","items":["5.07","9.01"],"status":"ready","headline":"ClearSign corrects vote counts for directors Maley and Schrecker in 8-K/A","summary_kind":"llm","event_type":"other","confidence":"high","bullets":["Amendment solely fixes typographical error in June 26, 2024 filing; original outcome unchanged.","Corrected votes: Maley 10,988,024 For, 9,721,904 Withheld; Schrecker 10,270,226 For, 10,439,702 Withheld.","All four director nominees were re-elected; broker non-votes of 9,158,314 for each.","No impact on election results or any other information in the prior filing."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.05,"calibrated_materiality_score":0.05,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":223301,"accession_number":"0001104659-24-075194","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-06-26T23:59:59+00:00","items":["1.01","3.02","5.03","5.07","9.01"],"status":"ready","headline":"ClearSign raises $4.3M in private placement; shareholders approve authorized share increase to 87.5M","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Issued 3.35M shares, pre-funded warrants for 1.343M shares, and private warrants for 7.04M shares at $1.05 strike to clirSPV LLC for $4.3M gross.","Authorized shares increased to 87.5M after stockholder approval at June 25 annual meeting.","Annual meeting results: all four director nominees elected; BPM CPA ratified as auditor; say-on-pay approved with one-year frequency.","Private warrants exercisable after 6 months for 5 years; company may redeem if stock price exceeds $2.275 for 20 days in 30."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.65,"calibrated_materiality_score":0.65,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":223300,"accession_number":"0001104659-24-073167","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-06-20T23:59:59+00:00","items":["5.02","8.01","9.01"],"status":"ready","headline":"ClearSign board member resigns; clirSPV exercises full participation right for ~$4.3M","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Board member Robert T. Hoffman Sr. resigned effective June 16, 2024; successor designee being vetted.","clirSPV LLC exercised Participation Right in full, purchasing shares and warrants for ~$4.3M gross proceeds.","Exercise includes 3.9M common shares, pre-funded warrants for 786K shares, redeemable warrants for 7.0M shares.","Expected close on or about June 24, 2024; proceeds for working capital, R&D, sales.","Hoffman said clirSPV's total capital infusion now $19.1M; believes sales funnel will convert to orders."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.7,"calibrated_materiality_score":0.7,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":223299,"accession_number":"0001104659-24-069743","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-06-07T23:59:59+00:00","items":["8.01","9.01"],"status":"ready","headline":"ClearSign Technologies vacates Chairman position effective June 3, 2024","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Board vacated Chairman role on recommendation of Nominating and Corporate Governance Committee.","Former Chairman continues as a board member; no successor appointed yet.","Chairman function at each meeting will be filled by designated person or Lead Independent Director.","Move aimed at enhancing governance and balancing board role with executive management."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":223298,"accession_number":"0001104659-24-065617","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-05-28T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"ClearSign Q1 revenue up 22% YoY to $1.1M; closes $8.7M equity offering","summary_kind":"llm","event_type":"earnings","confidence":"high","bullets":["Revenue $1.1M vs $900k in Q1 2023, up 22% YoY.","Cash and short-term investments $4.6M as of March 31, 2024.","Closed equity offering post-quarter with net proceeds ~$8.7M; overallotment exercised May 10.","Successful start-up of second multi-burner heater at Kern Energy; two additional engineering orders received.","Received first multi-boiler burner purchase order via partner California Boiler."],"consensus_eps_estimate":null,"consensus_eps_actual":-0.03,"consensus_revenue_estimate":null,"consensus_revenue_actual":1102000.0,"consensus_period":"2024-Q1","consensus_source":"xbrl_only","sentiment":"positive","materiality_score":0.7,"calibrated_materiality_score":0.7,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":223297,"accession_number":"0001104659-24-059982","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-05-10T23:59:59+00:00","items":["3.02","8.01","9.01"],"status":"ready","headline":"ClearSign underwriter exercises over-allotment in full for ~$638K gross proceeds","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Over-allotment exercised: 693,114 shares of common stock and warrants to purchase up to 693,114 shares at $0.92 per set.","Gross proceeds of approximately $637,665 before underwriting discounts, commissions, and other expenses.","Underwriter receives warrants to purchase 55,449 shares of common stock (8% of over-allotment shares sold).","Closing of the over-allotment securities expected on or about May 15, 2024, subject to conditions."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":223296,"accession_number":"0001104659-24-057077","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-05-03T23:59:59+00:00","items":["3.01","8.01","9.01"],"status":"ready","headline":"ClearSign gets Nasdaq bid price deficiency notice; Maley appointed to committees","summary_kind":"llm","event_type":"regulatory","confidence":"high","bullets":["Received Nasdaq notice on May 2, 2024 for closing bid price below $1 for 30 consecutive business days.","Company has 180-day cure period ending October 29, 2024; must close at $1 for 10 consecutive days.","If not cured, may seek additional 180-day period with reverse stock split if eligible.","Independent director David M. Maley appointed to Nominating and Governance Committee and Compensation Committee, effective May 3, 2024.","Company will monitor bid price and consider options; no assurance of regaining compliance."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"negative","materiality_score":0.7,"calibrated_materiality_score":0.7,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":223295,"accession_number":"0001104659-24-052066","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-04-25T23:59:59+00:00","items":["2.02","7.01","8.01","9.01"],"status":"ready","headline":"ClearSign reports record 2023 revenue of $2.4M, up 542% YoY; raises $9.3M","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Full year 2023 revenue $2.4M vs $374K in 2022; Q4 2023 revenue $1.2M vs $50K in Q4 2022.","Raised ~$9.3M gross from underwritten public offering and private placement, closed April 23, 2024.","Received California SCAQMD BACT emissions limits based on its process burner performance.","First multi-boiler burner purchase order from California Boiler for four boilers with ClearSign Core burners.","Cash and equivalents $5.6M as of Dec 31, 2023; 38.7M shares outstanding."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.65,"calibrated_materiality_score":0.65,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":223294,"accession_number":"0001104659-24-050960","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-04-24T23:59:59+00:00","items":["5.02","7.01","8.01","9.01"],"status":"ready","headline":"ClearSign adds director David Maley, closes $9.3M combined public/private offering","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["David Maley appointed to ClearSign Board, effective April 24, 2024; serves on Audit & Risk Committee.","Gross proceeds from combined public offering and private placement total ~$9.3M.","Public offering: 4,620,760 shares and redeemable warrants at $0.91/unit; warrants exercisable at $1.05 for 5 years.","Private placement: 2,249,763 shares, 3,155,642 pre-funded warrants, and 8,108,106 redeemable warrants at similar pricing.","Net proceeds earmarked for working capital, R&D, marketing & sales, and general corporate purposes."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":223293,"accession_number":"0001104659-24-050306","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-04-23T23:59:59+00:00","items":["1.01","3.02","9.01"],"status":"ready","headline":"ClearSign Technologies raises $5M in private placement with amended securities purchase agreement","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Entered amendment to securities purchase agreement with investor Andrew Schwartzberg on April 22, 2024.","Total gross proceeds of approximately $5,000,000 from issuance of common stock, pre-funded warrants, and redeemable warrants.","Private placement includes 2,249,763 common shares, pre-funded warrants for 3,155,642 shares, and redeemable warrants for up to 8,108,106 shares.","Transaction exempt from registration under Securities Act Section 4(a)(2) and Rule 506(b).","Closing expected on April 23, 2024, subject to customary conditions."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.7,"calibrated_materiality_score":0.7,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":223292,"accession_number":"0001104659-24-049160","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-04-19T23:59:59+00:00","items":["1.01","3.02","7.01","9.01"],"status":"ready","headline":"ClearSign Technologies prices $9.3M public offering and concurrent private placement of common stock and warrants","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Public offering of 4,620,760 shares + 4,620,760 warrants at $0.91/share and $0.01/warrant.","Private placement of 5,405,405 shares + 8,108,108 warrants at $0.91/share and $0.015/1.5 warrants.","Combined gross proceeds ~$9.3M; net proceeds for working capital, R&D, and sales.","Public warrants exercisable immediately at $1.05; private warrants after 6 months; both 5-year term.","Offerings expected to close April 23, 2024; underwriter has 45-day option for additional 15%."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":242768,"accession_number":"0001104659-24-011404","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-02-07T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"ClearSign reports Q4 revenue ~$1.2M, up from $50K YoY; FY revenue $2.3M, loss narrows","summary_kind":"llm","event_type":"earnings","confidence":"high","bullets":["Q4 2023 revenue approximately $1.2 million, compared to $50 thousand in Q4 2022.","Full year 2023 revenue approximately $2.3 million, compared to $374 thousand in 2022.","Preliminary net loss for 2023 estimated between $5.1M and $5.4M, narrowing from $5.8M loss in 2022.","Completed largest refinery heater installation in California; achieved third-party emissions guarantee validation."],"consensus_eps_estimate":null,"consensus_eps_actual":-0.13,"consensus_revenue_estimate":null,"consensus_revenue_actual":2403000.0,"consensus_period":"2023-FY","consensus_source":"xbrl_only","sentiment":"positive","materiality_score":0.7,"calibrated_materiality_score":0.7,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":242767,"accession_number":"0001104659-24-001822","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2024-01-05T23:59:59+00:00","items":["1.01","9.01"],"status":"ready","headline":"ClearSign extends purchase right for clirSPV to Dec 31, 2024","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["clirSPV LLC's Purchase Right to participate in future equity offerings extended to Dec. 31, 2024.","Extension follows two-thirds unit holder consent to waive Redemption Right until Dec. 31, 2024.","Board member Robert T. Hoffman Sr. is managing member of clirSPV's managing member."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.2,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":260149,"accession_number":"0001104659-23-121296","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2023-11-27T23:59:59+00:00","items":["3.01","9.01"],"status":"ready","headline":"ClearSign receives Nasdaq noncompliance notice over board independence after director resignation","summary_kind":"llm","event_type":"regulatory","confidence":"high","bullets":["ClearSign received Nasdaq notice on Nov 24, 2023, for noncompliance with board independence rules (Rules 5605(b)(1) and 5605(c)(2)(A)).","Board lacks majority independent directors; audit committee has only two independent directors (needs three).","Nasdaq granted cure period until next annual shareholder meeting or Nov 11, 2024; if meeting before May 7, 2024, cure by May 7, 2024.","Notice has no immediate effect on listing of common stock (CLIR) on Nasdaq."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"negative","materiality_score":0.6,"calibrated_materiality_score":0.6,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":260148,"accession_number":"0001104659-23-118741","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2023-11-15T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"ClearSign Q3 revenue $85k; first commercial boiler burner startup; hydrogen grants","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Revenue approx $85k in Q3 2023 vs zero year-ago; cash & short-term investments $7.2M as of Sep 30.","First commercial boiler burner installation started up; launched Rogue NZN/S5/S9 boiler burner line.","Hired Matthew Martin as CTO; focus on expanding ClearSign Core technology into new markets.","Completed Phase 1 testing of 100% hydrogen burner; awarded Phase 2 SBIR grant of $1.65M from DOE.","SoCalGas collaboration with additional $500k funding for hydrogen burner project; advancing commercialization."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.4,"calibrated_materiality_score":0.4,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":277442,"accession_number":"0001104659-23-103180","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2023-09-22T23:59:59+00:00","items":["8.01","9.01"],"status":"ready","headline":"ClearSign receives $500K SoCalGas commitment plus $1.65M DOE grant for hydrogen burner","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["SoCalGas pledges $500,000 to promote field demonstration of ClearSign Core burner technology in Southern California.","DOE Phase 2 SBIR grant of up to $1.65 million over two years for ultra-low NOx hydrogen burner development.","Project scales burner from 2 MMBtu/hr to 8 MMBtu/hr for commercial industrial heating applications.","Collaboration supports California net-zero goals and potential Angeles Link green hydrogen pipeline system.","ClearSign's hydrogen burner targets below 5 ppm NOx while enabling 100% hydrogen fuel adoption."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.75,"calibrated_materiality_score":0.75,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":277441,"accession_number":"0001104659-23-097793","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2023-09-01T23:59:59+00:00","items":["2.02","7.01","9.01"],"status":"ready","headline":"ClearSign Q2 revenue $150k vs $0 YoY; awarded $1.65M DOE hydrogen burner grant","summary_kind":"llm","event_type":"earnings","confidence":"medium","bullets":["Q2 2023 revenue ~$150k, up from zero in Q2 2022; cash and short-term investments ~$8.5M.","Awarded $1.65M Phase 2 SBIR grant with DOE to commercialize 100% hydrogen ultra-low NOx burner.","Engineering order for 13 burners across two heaters from California refinery to meet emission limits.","First boiler burner sale into Texas Gulf Coast market; installation scheduled Q3 2023."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.6,"calibrated_materiality_score":0.6,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":277440,"accession_number":"0001104659-23-096559","cik":1434524,"company_name":"ClearSign Technologies Corp","ticker":"CLIR","form_type":"8-K","filed_at":"2023-08-29T23:59:59+00:00","items":["8.01","9.01"],"status":"ready","headline":"ClearSign awarded $1.65M DOE Phase 2 grant for hydrogen burner development","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Phase 2 grant of up to $1.65M over two years from DOE SBIR program.","Follows Phase 1 grant of $250,000 that demonstrated ClearSign Core Ultra Low NOx burner with 100% hydrogen.","Funds will support commercialization of ultra-low NOx hydrogen burner technology.","Collaboration with worldwide burner supplier Zeeco Inc. continues.","Company believes technology enables hydrogen fuel adoption for industrial heating while reducing NOx emissions."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"positive","materiality_score":0.65,"calibrated_materiality_score":0.65,"market_cap_usd":24898110.92134831,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null}],"next_cursor":"2023-08-29T23:59:59+00:00|277440"}