{"filings":[{"id":749036,"accession_number":"0001819438-26-000039","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2026-05-29T21:18:09+00:00","items":["5.07"],"status":"ready","headline":"ESS Tech annual meeting elects two Class II directors; ratifies KPMG","summary_kind":"llm","event_type":"other","confidence":"high","bullets":["Elected Sandeep Nijhawan (5.35M for, 1.72M withheld) and Harry Quarls (6.86M for, 0.21M withheld) to Class II board.","Stockholders ratified KPMG LLP as independent auditor for FY 2026 with 15.16M for, 0.50M against.","Advisory say-on-pay approved with 6.88M for, 0.13M against; frequency set to every year with 6.87M votes.","Broker non-votes of 8.60M on director and say-on-pay items due to routine matters."],"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":0.15,"market_cap_usd":28921881.514950495,"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":95769,"accession_number":"0001819438-26-000032","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2026-05-07T23:59:59+00:00","items":["2.02","9.01"],"status":"ready","headline":"ESS Tech Q1 net loss narrows to $15.9M; revenue $128k; new AFRL and SRP/Google deals","summary_kind":"llm","event_type":"earnings","confidence":"high","bullets":["Revenue $128K vs $0.6M YoY; net loss $(15.9)M ($0.54 per share) vs $(18.0)M prior year.","Adjusted EBITDA loss improved 31% to $(10.3)M; total operating expenses down 33%.","Total liquidity $21.5M as of Mar 31; closed $15M direct offering at $1.75/share.","Awarded $9.9M contract with CTC/AFRL for up to 27 MWh storage system.","Project New Horizon pilot with SRP/Google (5MW/50MWh); delivery targeted Dec 2027."],"consensus_eps_estimate":null,"consensus_eps_actual":-0.54,"consensus_revenue_estimate":null,"consensus_revenue_actual":128000.0,"consensus_period":"2026-Q1","consensus_source":"xbrl_only","sentiment":"neutral","materiality_score":0.7,"calibrated_materiality_score":0.7,"market_cap_usd":28921881.514950495,"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":95768,"accession_number":"0001819438-26-000022","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2026-04-15T23:59:59+00:00","items":["5.02"],"status":"ready","headline":"Director Michael Niggli resigns from ESS Tech board, effective May 29, 2026","summary_kind":"llm","event_type":"leadership","confidence":"high","bullets":["Michael Niggli notified resignation from Board, Audit Committee, and Nominating and Corporate Governance Committee.","Resignation effective as of the date of the 2026 annual meeting of stockholders on May 29, 2026.","Resignation not due to any disagreement with the Company regarding operations, policies, or practices.","Niggli served as Founding Chairman of the Company."],"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":28921881.514950495,"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":109067,"accession_number":"0001819438-26-000011","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2026-03-05T23:59:59+00:00","items":["2.02","8.01","9.01"],"status":"ready","headline":"ESS Tech reports FY2025 net loss $63.4M, Adj. EBITDA -$44.3M, cash strengthened","summary_kind":"llm","event_type":"earnings","confidence":"high","bullets":["Revenue of $1.6M; net loss improved to $63.4M from $86.2M in 2024; Adj. EBITDA -$44.3M vs -$71.3M.","OpEx down 33% to $29.7M; cash & short-term investments $22M at year-end; raised $15M in Jan 2026.","Leadership reset: Drew Buckley CEO, Kelly Goodman CSO/GC, Kate Suhadolnik CFO.","Acquired VoltStorage IP; $9.9M military LDES contract; updated Google collaboration for Project New Horizon.","Repaid 95% of $30M note tranche; drew second $10M tranche from YA II PN."],"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":28921881.514950495,"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":109066,"accession_number":"0001628280-26-004263","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2026-01-30T23:59:59+00:00","items":["1.01","9.01"],"status":"ready","headline":"ESS Tech raises approximately $15 million in registered direct offering of common stock and pre-funded warrants","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["On January 29, 2026, ESS Tech entered into a securities purchase agreement to sell 3,471,428 shares and 5,100,000 pre-funded warrants at $1.75 per share or $1.74999 per warrant.","The registered direct offering is expected to close on January 30, 2026, with net proceeds of approximately $13.5 million after fees and expenses.","Proceeds from the offering will be used for general corporate purposes and working capital.","Aegis Capital Corp. served as exclusive placement agent, receiving a cash fee of up to 6.0% of gross proceeds and expense reimbursement up to $80,000."],"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":28921881.514950495,"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":109065,"accession_number":"0001628280-26-003973","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2026-01-29T23:59:59+00:00","items":["2.02","5.02","9.01"],"status":"ready","headline":"ESS Tech prelim FY2025 rev $1.6M, op loss $55M; CEO Buckley added to board","summary_kind":"llm","event_type":"earnings","confidence":"high","bullets":["Cash, equivalents, and short-term investments ~$22M at Dec 31, 2025, up $18.5M from Sep 30, 2025.","Revenue ~$1.6M, down $4.7M YoY due to wind-down of legacy contracts amid shift to Energy Base.","Operating loss ~$55M, improvement of $34.8M YoY reflecting ongoing cost discipline.","Repaid $24.4M (81%) of $30M promissory note; $5.6M outstanding; second tranche of $10M available until Feb 28, 2026.","CEO Drew Buckley elected to board (Class I), effective Jan 23, 2026; board size increased to eight."],"consensus_eps_estimate":null,"consensus_eps_actual":-4.34,"consensus_revenue_estimate":null,"consensus_revenue_actual":1583000.0,"consensus_period":"2025-FY","consensus_source":"xbrl_only","sentiment":"negative","materiality_score":0.6,"calibrated_materiality_score":0.6,"market_cap_usd":28921881.514950495,"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":109064,"accession_number":"0001819438-26-000003","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2026-01-06T23:59:59+00:00","items":["5.02","9.01"],"status":"ready","headline":"ESS Tech appoints Drew Buckley as CEO, names Goodman CSO/GC and Suhadolnik permanent CFO","summary_kind":"llm","event_type":"leadership","confidence":"high","bullets":["Drew Buckley, former Head of Capital Markets Strategy, becomes CEO effective Jan 1, 2026; base salary $425K, annual target bonus up to 90%.","Kelly Goodman transitions from Interim CEO to Chief Strategy Officer and General Counsel, salary increased to $360K.","Kate Suhadolnik, previously Interim CFO since Aug 2025, appointed permanent CFO with salary of $360K.","Company indicates manufacturing and first Energy Base deliveries expected in 2026; plans investor/analyst day.","Buckley spent 17 years at William Blair, most recently as Partner and sector leader for technology."],"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":28921881.514950495,"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":125542,"accession_number":"0001819438-25-000079","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2025-12-05T23:59:59+00:00","items":["1.01","9.01"],"status":"ready","headline":"ESS Tech amends Yorkville note: extends second tranche deadline to Feb 2026, lowers principal condition","summary_kind":"llm","event_type":"debt","confidence":"high","bullets":["Second tranche deadline extended from Dec 12, 2025 to no later than Feb 28, 2026.","Condition for second tranche: principal outstanding under Tranche One must be ≤ $7M (down from $20M).","Company must enter ATM sales agreement with Yorkville Securities, with Yorkville receiving ≥60% of commissions.","Second tranche amount remains $10M less original issue discount."],"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":28921881.514950495,"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":125541,"accession_number":"0001819438-25-000077","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2025-11-13T23:59:59+00:00","items":["2.02","9.01"],"status":"ready","headline":"ESS Tech Q3 2025: No financial figures disclosed; highlights 50 MWh pilot, $40M financing, $75M ATM","summary_kind":"llm","event_type":"earnings","confidence":"low","bullets":["Announced 50 MWh Energy Base pilot with Salt River Project (SRP) for long-duration energy storage.","Closed $40M financing with Yorkville; repaid $15M of promissory note and completed $25M SEPA.","Plans to launch a $75M at-the-market (ATM) program with Yorkville, BMO, Canaccord, Needham, and Stifel.","Investor Day scheduled for January 2026 to detail execution and strategic priorities.","Interim CEO Kelly Goodman cited focus on delivering Energy Base platform and digital infrastructure support."],"consensus_eps_estimate":null,"consensus_eps_actual":-3.08,"consensus_revenue_estimate":null,"consensus_revenue_actual":3171000.0,"consensus_period":"2025-Q3","consensus_source":"xbrl_only","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"market_cap_usd":28921881.514950495,"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":125540,"accession_number":"0001628280-25-052045","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2025-11-13T23:59:59+00:00","items":["1.01","9.01"],"status":"ready","headline":"ESS Tech launches $75M at-the-market offering; proceeds to repay Yorkville promissory note","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Entered ATM agreement with Yorkville, BMO, Canaccord, Needham & Stifel to sell up to $75M of common stock.","Net proceeds first satisfy installment payments within 30 days on Promissory Note to YA II PN (Yorkville affiliate).","After that, 80% of remaining proceeds used to repay Promissory Note in order of maturity; 20% for working capital.","Agents receive 3% commission on gross sales; Canaccord acts as qualified independent underwriter.","Offering under Rule 415; Company not obligated to sell any shares, but agents will use commercially reasonable efforts."],"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":28921881.514950495,"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":125539,"accession_number":"0001819438-25-000065","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2025-10-14T23:59:59+00:00","items":["1.01","2.03","3.02","9.01"],"status":"ready","headline":"ESS Tech closes $40M note financing with Yorkville; warrant for 1.05M shares at $9.98","summary_kind":"llm","event_type":"debt","confidence":"high","bullets":["Unsecured promissory note of $40M in two tranches: $30M now, $10M upon ATM agreement with Yorkville Securities.","Note bears 3% interest, matures Oct 14, 2026; proceeds for working capital and general corporate purposes.","Issued warrant to Yorkville for up to 1,052,104 common shares at $9.98/share, exercisable for five years.","Financing follows recent 50 MWh Salt River Project announcement; management cites strategic pivot to Energy Base.","Company expects to use capital for execution on existing commitments and signing new long-duration storage contracts."],"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":28921881.514950495,"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":125538,"accession_number":"0001819438-25-000057","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2025-10-14T23:59:59+00:00","items":["5.07"],"status":"ready","headline":"ESS Tech stockholders re-elect Hossfeld, ratify KPMG, approve share issuance up to $25M","summary_kind":"llm","event_type":"other","confidence":"high","bullets":["Re-elected Class I director Rich Hossfeld with 7,439,737 votes for, 227,368 withheld.","Ratified KPMG as independent auditor for FY2025: 7,586,982 for, 73,727 against, 6,396 abstain.","Approved issuance of up to $25M in shares under standby equity purchase agreement and up to 129,312 shares on warrant exercises.","Meeting reconvened Oct 13 after lack of quorum on Oct 6; 7,667,105 of 14,740,884 shares present."],"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":28921881.514950495,"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":142276,"accession_number":"0001819438-25-000027","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2025-08-29T23:59:59+00:00","items":["8.01"],"status":"ready","headline":"ESS Tech schedules 2025 annual meeting for Oct 6; sets Sep 8 deadline for proposals","summary_kind":"llm","event_type":"other","confidence":"high","bullets":["Annual meeting set for October 6, 2025.","Stockholder proposals for proxy materials due by September 8, 2025.","Nominations and other proposals (non-proxy) also due by September 8, 2025.","Adjournments will not extend the deadline."],"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":28921881.514950495,"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":142275,"accession_number":"0001819438-25-000019","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2025-08-18T23:59:59+00:00","items":["5.02"],"status":"ready","headline":"ESS Tech appoints Jigish Trivedi as COO effective August 18, 2025","summary_kind":"llm","event_type":"leadership","confidence":"high","bullets":["Jigish Trivedi appointed COO effective Aug 18, 2025; previously SVP Operations at Electric Hydrogen Co. and senior roles at Micron and First Solar.","Annual base salary of $375,000; target bonus up to 75% of salary; 275,000 RSUs vesting over four years.","On termination without cause: 6 months base salary severance and accelerated vesting of RSUs scheduled to vest in 12 months.","Employment agreement with standard indemnification; full text to be filed as exhibit to next 10-Q."],"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":0.35,"market_cap_usd":28921881.514950495,"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":142274,"accession_number":"0001819438-25-000012","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2025-08-14T23:59:59+00:00","items":["2.02","9.01"],"status":"ready","headline":"ESS Tech Q2 revenue $2.4M (+294% QoQ); secures up to $31M in new capital","summary_kind":"llm","event_type":"earnings","confidence":"high","bullets":["GAAP revenue $2.4M (+294% QoQ); net loss and adjusted EBITDA improved 50% YoY.","Secured up to $31M new capital including a $25M Standby Equity Purchase Agreement.","Appointed Jigish Trivedi as COO and Kate Suhadolnik as interim CFO.","Ended July with $7.2M cash vs $0.8M at Q2 close; operating cash burn cut ~80% in June.","Proposal activity exceeded 1.1 GWh following Energy Base launch; first Energy Base sale closed."],"consensus_eps_estimate":null,"consensus_eps_actual":-2.39,"consensus_revenue_estimate":null,"consensus_revenue_actual":2957000.0,"consensus_period":"2025-Q2","consensus_source":"xbrl_only","sentiment":"positive","materiality_score":0.75,"calibrated_materiality_score":0.75,"market_cap_usd":28921881.514950495,"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":142273,"accession_number":"0001819438-25-000007","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2025-08-07T23:59:59+00:00","items":["5.02"],"status":"ready","headline":"ESS Tech terminates CFO Anthony Rabb; appoints Kate Suhadolnik as interim CFO","summary_kind":"llm","event_type":"leadership","confidence":"high","bullets":["Anthony Rabb terminated without severance effective August 1, 2025; not related to accounting or financial reporting issues.","Kate Suhadolnik, Controller since April 2023, appointed interim CFO and principal financial/accounting officer.","Suhadolnik has 14 years experience, previously at Deloitte and The Standard; CPA; annual salary $220k plus bonus.","Board conducting search for permanent CFO replacement from internal and external candidates."],"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":0.75,"calibrated_materiality_score":0.75,"market_cap_usd":28921881.514950495,"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":142272,"accession_number":"0001628280-25-034769","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2025-07-11T23:59:59+00:00","items":["1.01","2.01","2.02","2.03","3.02","8.01","9.01"],"status":"ready","headline":"ESS announces $31M insider-led funding package, preliminary Q2 rev $2.4M, first Energy Base order","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["$28.5M Yorkville equity facility + $0.9M insider bridge notes + $4.0M equipment sale-leaseback cash.","Preliminary Q2 revenue ~$2.4M (+294% QoQ); net loss ~$10.3M (43% improvement); adj. EBITDA loss ~$7.6M.","Monthly cash burn reduced ~80% in June vs first 5 months average; cash & equivalents ~$0.8M as of June 30.","First Energy Base order for 8 MWh project secured; directors forego cash compensation for 2025.","NYSE delisting risk: avg market cap <$15M; may face suspension/delisting procedures."],"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":0.75,"calibrated_materiality_score":0.75,"market_cap_usd":28921881.514950495,"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":160287,"accession_number":"0001628280-25-029215","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2025-06-04T23:59:59+00:00","items":["8.01"],"status":"ready","headline":"ESS Tech closes orders for $2.5M revenue & $1M PTC sale in Q2; still needs near-term funding","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Closed additional Energy Warehouse and Energy Center orders as part of inventory movement strategy.","Orders credited to existing equipment deposits, enabling $2.5M revenue recognition in Q2.","Expects to sell Production Tax Credits totaling ~$1M in Q2, improving cash but limited liquidity.","Company reiterates going concern disclosure; needs additional funding in near term.","No assurance on timing or success of Energy Base product sales or capital raising efforts."],"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":28921881.514950495,"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":160286,"accession_number":"0001628280-25-028027","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2025-05-28T23:59:59+00:00","items":["8.01"],"status":"ready","headline":"ESS Tech warns of potential shutdown; issues WARN notices for Wilsonville site","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["As of May 27, 2025, ESS Tech has not raised capital needed to avoid or postpone a shutdown.","Company issued WARN Act notices to employees and officials; shutdown effective May 30 if no financing.","Continues to explore financing options; notes a utility project in contracting but not yet secured.","Potential workforce actions if financing not obtained imminently."],"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":0.95,"calibrated_materiality_score":0.95,"market_cap_usd":28921881.514950495,"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":160285,"accession_number":"0001628280-25-025903","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2025-05-15T23:59:59+00:00","items":["2.02","9.01"],"status":"ready","headline":"ESS Tech Q1 revenue $0.6M; awards 50 MWh Energy Base; proposals $400M; managing liquidity","summary_kind":"llm","event_type":"earnings","confidence":"medium","bullets":["Revenue of $0.6M for Q1 2025 from final Energy Center deliveries and Florida utility project.","Awarded 50 MWh Energy Base project with Arizona utility; PPA structure with confirmed offtaker; contracting expected by September.","Proposal submissions totaled ~1.2 GWh ($400M) over past two quarters; over 70% from Energy Base product.","Interim CEO cites moderating H1 activity to manage liquidity; capital raising measures and turnaround pivot underway.","Global fleet nearing 2.5 GWh transacted; two Portland General Electric systems cycling daily, transacting 158 MWh."],"consensus_eps_estimate":null,"consensus_eps_actual":-1.5,"consensus_revenue_estimate":null,"consensus_revenue_actual":599000.0,"consensus_period":"2025-Q1","consensus_source":"xbrl_only","sentiment":"negative","materiality_score":0.6,"calibrated_materiality_score":0.6,"market_cap_usd":28921881.514950495,"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":178582,"accession_number":"0001628280-25-015704","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2025-03-31T23:59:59+00:00","items":["1.01","9.01"],"status":"ready","headline":"ESS Tech enters ATM equity offering program for up to $13.5M","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Entered Sales Agreement with Robert W. Baird & Co. for at-the-market offering.","Maximum aggregate offering price of $13,504,438 of common stock.","Net proceeds to be used for working capital and general corporate purposes.","Agent commission of up to 3% of gross sales price.","Company is not obligated to sell any shares under the agreement."],"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":28921881.514950495,"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":178581,"accession_number":"0001628280-25-015647","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2025-03-31T23:59:59+00:00","items":["2.02","9.01"],"status":"ready","headline":"ESS Tech reports FY2024 revenue of $6.3M, misses guidance; reaches Energy Center cost target early","summary_kind":"llm","event_type":"earnings","confidence":"high","bullets":["FY2024 revenue of $6.3M was below the low end of guidance due to partner funding delays.","Achieved breakeven profitability on latest Energy Center design in Q4, nearly a year ahead of schedule.","Delivered eight Energy Center systems to a major Florida utility; commissioning expected later in 2025.","Announced Energy Base, a new modular gigawatt-hour-scale LDES solution for grid-scale applications.","Global fleet surpassed 2 GWh of transacted energy; received UL 9540 certification and MESA compliance."],"consensus_eps_estimate":null,"consensus_eps_actual":-1.5,"consensus_revenue_estimate":null,"consensus_revenue_actual":599000.0,"consensus_period":"2025-Q1","consensus_source":"xbrl_only","sentiment":"neutral","materiality_score":0.7,"calibrated_materiality_score":0.7,"market_cap_usd":28921881.514950495,"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":178580,"accession_number":"0001628280-25-015467","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2025-03-28T23:59:59+00:00","items":["3.01","7.01","9.01"],"status":"ready","headline":"ESS Tech receives NYSE delisting notice for low market cap and equity","summary_kind":"llm","event_type":"regulatory","confidence":"high","bullets":["30-day avg market cap $47.8M; reported equity $49.2M as of Sept 30, 2024.","NYSE Rule 802.01B requires both market cap and equity above $50M.","Company to submit plan within 45 days to regain compliance within 18 months.","No immediate impact on listing or operations; cure period pending NYSE acceptance.","Ticker GWH continues trading on NYSE while company evaluates options."],"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":28921881.514950495,"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":178579,"accession_number":"0001628280-25-005510","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2025-02-14T23:59:59+00:00","items":["5.02","9.01"],"status":"ready","headline":"ESS CEO Eric Dresselhuys resigns; interim CEO Goodman appointed; board explores strategic options","summary_kind":"llm","event_type":"leadership","confidence":"high","bullets":["CEO Eric Dresselhuys separated Feb 13, 2025; receives 12 months base salary ($500K) plus COBRA and accelerated equity vesting.","Kelly Goodman (VP Legal) appointed interim CEO; annual salary $297,432; supported by Office of Interim CEO (CFO Rabb, EVP Heng).","Board engaged advisors to evaluate potential commercial or financial transactions to enable new strategic direction.","ESS now bidding on 12-24 hour LDES projects for AI/data center loads, targeting initial installations in 2027."],"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":0.8,"calibrated_materiality_score":0.8,"market_cap_usd":28921881.514950495,"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":195249,"accession_number":"0001628280-24-047577","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2024-11-13T23:59:59+00:00","items":["2.02","9.01"],"status":"ready","headline":"ESS Tech guides FY2024 revenue $9-11M; delays in Q3 revenue recognition; secures $20M EXIM loan","summary_kind":"llm","event_type":"earnings","confidence":"medium","bullets":["Revenue guidance for full year 2024 of $9-11 million, implying meaningful year-on-year growth.","Q3 revenue recognition delayed due to funding delays from Australian partner; units now shipping in Q4.","Second Energy Center for Portland General Electric built, in testing; first EC operating with high reliability.","Executed $20M tranche of $50M EXIM loan (long-term, low-interest, non-dilutive) for manufacturing expansion.","Completed 1-for-15 reverse stock split in August to regain NYSE compliance."],"consensus_eps_estimate":null,"consensus_eps_actual":-5.35,"consensus_revenue_estimate":null,"consensus_revenue_actual":3445000.0,"consensus_period":"2024-Q3","consensus_source":"xbrl_only","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"market_cap_usd":28921881.514950495,"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":195248,"accession_number":"0001628280-24-045278","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2024-11-05T23:59:59+00:00","items":["1.01","2.03"],"status":"ready","headline":"ESS Tech enters $22.7M credit agreement with EXIM for production line financing","summary_kind":"llm","event_type":"debt","confidence":"high","bullets":["Loan facility of up to $22,709,850; $20M for equipment financing, balance for fees.","Maturity June 30, 2031; interest at EXIM Commercial Interest Reference Rate, payable quarterly.","Repayment in 19 quarterly installments starting December 30, 2026.","Covenants include trailing four-quarter revenue targets tested quarterly from March 31, 2025.","Secured by first-priority security interest in financed equipment and restricted cash collateral."],"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":28921881.514950495,"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":211500,"accession_number":"0001628280-24-038379","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K/A","filed_at":"2024-08-26T23:59:59+00:00","items":["5.07"],"status":"ready","headline":"ESS Tech stockholders approve reverse stock split with ~98.5% in favor","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Final vote: 104,424,540 For, 1,551,346 Against, 286,157 Abstain; proposal approved.","Special meeting held August 23, 2024; quorum of 106,262,043 shares present.","No broker non-votes reported on the reverse stock split proposal.","The ratio and effective date of the reverse split are not disclosed in this 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":0.5,"calibrated_materiality_score":0.5,"market_cap_usd":28921881.514950495,"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":211502,"accession_number":"0001628280-24-038349","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2024-08-23T23:59:59+00:00","items":["3.03","5.03","5.07","7.01","8.01","9.01"],"status":"ready","headline":"ESS Tech effects 1-for-15 reverse stock split to meet NYSE minimum bid price","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Reverse split effective Aug 23, 2024 at 4:01 PM ET; common stock opens on post-split basis Aug 26.","Outstanding shares reduced from ~178M to ~11.87M; authorized shares cut from 2B to 1B.","No fractional shares issued; cash paid in lieu based on closing price prior to effective time.","Public warrants adjusted: every 15 warrants now exercisable for 1 share at $172.50 per share.","Purpose: to increase per-share trading price and comply with NYSE continued listing standard."],"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":28921881.514950495,"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":211501,"accession_number":"0001628280-24-037187","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2024-08-14T23:59:59+00:00","items":["2.02","9.01"],"status":"ready","headline":"ESS Tech Q2 revenue miss; secures $50M EXIM funding; cash >$74M","summary_kind":"llm","event_type":"earnings","confidence":"medium","bullets":["Cash & short-term investments >$74M; expected to fund operations well into 2025.","Finalizing up to $50M EXIM funding; ~$10M lookback add to Q2 balance sheet.","Revenue in Q2 lower than expected due to partner delays; expects recovery in Q3.","CEC granted $10M for SMUD 3.6 MW/8-hr iron flow project; SMUD to add $19.5M.","Began production of second Energy Center for PGE; first EC now cycling."],"consensus_eps_estimate":null,"consensus_eps_actual":-0.23,"consensus_revenue_estimate":null,"consensus_revenue_actual":3086000.0,"consensus_period":"2024-Q2","consensus_source":"xbrl_only","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"market_cap_usd":28921881.514950495,"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":230167,"accession_number":"0001628280-24-024545","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2024-05-21T23:59:59+00:00","items":["5.07"],"status":"ready","headline":"ESS Tech annual meeting elects three Class III directors, ratifies KPMG as auditor","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Stockholders elected Raffi Garabedian, Michael Niggli, and Alexi Wellman as Class III directors to serve until 2027.","Ratified appointment of KPMG LLP as independent auditor for fiscal 2024 with 141.6M votes for, 0.6M against.","Proposals passed with strong support; broker non-votes of 40.4M on director election due to discretionary voting rules."],"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":28921881.514950495,"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":230166,"accession_number":"0001628280-24-021087","cik":1819438,"company_name":"ESS Tech, Inc.","ticker":"GWH","form_type":"8-K","filed_at":"2024-05-07T23:59:59+00:00","items":["2.02","9.01"],"status":"ready","headline":"ESS Tech Q1 revenue $2.7M, seven-fold YoY; cash >$89M; orders second automation line","summary_kind":"llm","event_type":"earnings","confidence":"high","bullets":["Q1 revenue $2.7M (seven-fold YoY increase); cash >$89M, expected into H1 2025.","Second automation line ordered: 600 MWh/yr (40% more), 50% lower cost/MWh, operational 1H 2025.","Completed first Energy Center testing for Portland General Electric; second EC build starts early Q3 2024.","Partnered with Sapele Power to supply long-duration energy storage solutions in Africa.","Energy Warehouse commissioned at Schiphol Airport and installed at Burbank Water and Power."],"consensus_eps_estimate":null,"consensus_eps_actual":-0.1,"consensus_revenue_estimate":null,"consensus_revenue_actual":2738000.0,"consensus_period":"2024-Q1","consensus_source":"xbrl_only","sentiment":"positive","materiality_score":0.65,"calibrated_materiality_score":0.65,"market_cap_usd":28921881.514950495,"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":null}