Recent 8-K filings for BCHT

• May 12, 2026, 4:16 PM ET leadership materiality 0.25 neutral item 5.02item 9.01

  Birchtech finalizes terms for new CFO Mioska: $425K CAD salary, Oyster HR arrangement

  CFO Michael Mioska effective May 1, 2026; compensation finalized May 8.

• May 6, 2026, 7:59 PM ET leadership materiality 0.60 neutral item 5.02item 9.01 ◈ executive_change ×4

  Birchtech appoints Michael Mioska as CFO; CEO & COO contracts extended with retention bonuses

  CFO Fiona Fitzmaurice departed May 1, 2026; Michael Mioska appointed CFO effective same day.

• April 13, 2026, 7:59 PM ET other materiality 0.15 neutral item 5.08item 8.01item 9.01

  Birchtech sets 2026 Annual Meeting for July 23; shareholder proposal deadline May 26

  2026 Annual Meeting scheduled for Thursday, July 23, 2026, as a virtual-only meeting.

• March 17, 2026, 7:59 PM ET other material materiality 0.40 positive item 8.01item 9.01

  Birchtech raises additional $1.4M via partial exercise of over-allotment option

  On Mar 17, 2026, sold 600,000 shares at $2.40 to Lake Street Capital Markets.

• February 27, 2026, 6:59 PM ET other material materiality 0.60 neutral item 1.01item 8.01item 9.01 ◈ Material Agreements

  Birchtech prices $15M public offering of 6.25M shares at $2.40; uplists to NYSE American

  Gross proceeds of $15M from 6.25M shares at $2.40; net proceeds ~$13.1M (or $15.2M if overallotment exercised).

• January 5, 2026, 6:59 PM ET litigation materiality 0.75 positive item 8.01item 9.01

  Birchtech wins $78.4M patent-infringement judgment against CERT defendants

  Final judgment entered Dec. 29, 2025 in U.S. District Court for Delaware awarding $78,397,157 including pre-judgment interest.

• December 29, 2025, 6:59 PM ET other material materiality 0.50 neutral item 3.03item 5.03item 9.01 ◈ Equity Issuances◈ Governance Changes

  Birchtech announces 1-for-5 reverse stock split effective Dec 26 for uplisting strategy

  Reverse stock split at 1-for-5 ratio; effective Dec 26, 2025; trading on split-adjusted basis begins Dec 31, 2025.

• June 20, 2025, 7:59 PM ET leadership materiality 0.50 neutral item 5.02item 9.01 ◈ executive_change ×2

  Birchtech Corp. Chairman Christopher Greenberg resigns; CEO MacPherson appointed interim Chairman

  Christopher Greenberg resigns as director and Chairman of the Board effective July 1, 2025, to focus on other business pursuits.

• March 31, 2025, 7:59 PM ET other material materiality 0.75 negative item 4.02item 9.01 ◈ Auditor Changes

  Birchtech restates 2022-2024 financials due to revenue recognition error; no cash impact

  Company will restate audited FY2022, FY2023, and interim 2023/2024 financials for under-recognized license revenue.

• March 4, 2025, 6:59 PM ET earnings materiality 0.65 positive item 2.02item 9.01

  Birchtech guides FY2025 revenue at least $23M, up 31% YoY from prelim $17.5M in FY2024

  Preliminary unaudited FY2024 revenue at least $17.5 million.

• January 6, 2025, 6:59 PM ET other material materiality 0.50 neutral item 5.07item 9.01

  Birchtech shareholders approve reverse stock split authorization at 2024 annual meeting

  Five directors elected: Richard MacPherson (43.8M for), Christopher Greenberg (43.3M), David Kaye (43.5M), Troy Grant (43.5M), Mitzi Coogler (44.2M).

• November 15, 2024, 6:59 PM ET other material materiality 0.30 neutral item 5.03item 8.01item 9.01 ◈ Governance Changes

  Birchtech (fka Midwest Energy) adopts majority voting policy, amends equity plans for TSX listing

  Corporate name changed from Midwest Energy Emissions Corp. to Birchtech Corp. effective Oct 17, 2024; conforming bylaw amendment approved Nov 11.

• October 21, 2024, 7:59 PM ET other material materiality 0.55 positive item 8.01item 9.01

  Birchtech settles patent suit with utility; grants SEA process license for one plant

  Effective Oct 8, 2024, Birchtech licensed its two-part SEA® patent to a utility defendant and affiliate for a designated coal-fired plant.

• October 17, 2024, 7:59 PM ET other material materiality 0.55 neutral item 5.03item 7.01item 8.01item 9.01 ◈ Governance Changes

  Birchtech (f/k/a Midwest Energy Emissions) begins trading under BCHT; receives conditional TSX listing approval

  Corporate name changed to Birchtech Corp., effective Oct 17, 2024.

• August 1, 2024, 7:59 PM ET litigation materiality 0.55 neutral item 8.01item 9.01

  Midwest Energy Emissions files patent lawsuits against 14 utilities in three district courts

  Filed July 30, 2024, in Arizona, Iowa, and Missouri federal courts against 14 defendants including Berkshire Hathaway Energy, Ameren, and Tucson Electric Power.

• June 13, 2024, 7:59 PM ET leadership materiality 0.50 neutral item 5.02item 9.01

  Midwest Energy Emissions enters new employment agreements with CEO, CTO, EVP Operations

  CEO Richard MacPherson salary $1M/yr, bonus cap $1M, three-year term with auto-renewal.

• March 5, 2024, 6:59 PM ET litigation materiality 0.75 positive item 8.01item 9.01

  ME2C awarded $57M patent verdict against CERT defendants in Delaware

  Federal jury awarded $57 million against CERT Operations II, IV, V, LLC and CERT Operations RCB LLC.

• March 4, 2024, 6:59 PM ET debt materiality 0.65 neutral item 1.01item 2.03item 9.01 ◈ Material Agreements ×2

  Midwest Energy Emissions restructures $13.15M debt, issues $4.11M new note, cuts profit share

  Paid $9.04M to reduce unsecured note principal; issued new $4.11M note due Aug 27, 2024 at SOFR+2%.

• January 4, 2024, 6:59 PM ET litigation materiality 0.65 positive item 8.01item 9.01

  MEEC settles patent litigation with Chem-Mod, Gallagher, DTE under paid license

  Entered paid license of five U.S. patents (Nos. 8,168,147, 10,343,114, 10,589,225, 10,596,517, 10,668,430) with Chem-Mod, Gallagher, and DTE.

• December 7, 2023, 6:59 PM ET other material materiality 0.15 neutral item 5.07item 9.01 ◈ Shareholder Votes ×4

  Shareholders elect four directors, ratify auditor, approve equity plans at annual meeting

  All four director nominees elected with >49M votes for each; broker non-votes ~20.8M.

• November 14, 2023, 6:59 PM ET litigation materiality 0.50 neutral item 8.01item 9.01

  ME2C settles patent suits with AJG, DTE, Alistar; trial for remaining CERT defendants rescheduled

  Entered confidential binding term sheet with AJG and DTE to resolve patent litigation initiated July 2019.

• November 7, 2023, 6:59 PM ET leadership materiality 0.50 neutral item 5.02item 9.01 ◈ executive_change

  Midwest Energy Emissions appoints Fiona Fitzmaurice as CFO

  Fiona Fitzmaurice appointed CFO effective November 1, 2023, serving under a fractional CFO services agreement.

• October 16, 2023, 7:59 PM ET leadership materiality 0.65 negative item 5.02item 9.01 ◈ executive_change

  CFO Greg Powell resigns effective immediately; replacement search underway

  Greg Powell resigned as CFO of Midwest Energy Emissions Corp. effective October 10, 2023.

• September 15, 2023, 7:59 PM ET other materiality 0.20 neutral item 5.08item 8.01item 9.01

  Midwest Energy Emissions sets Dec 5, 2023 annual meeting; proposal deadline Oct 6

  Annual meeting scheduled for December 5, 2023, as a virtual-only event.

• September 14, 2023, 7:59 PM ET other material materiality 0.35 neutral item 4.01item 9.01 ◈ Auditor Changes ×2

  Midwest Energy Emissions dismisses Marcum LLP, engages RRBB P.A. as new auditor

  Audit Committee approved dismissal of Marcum effective immediately on September 11, 2023.

• July 10, 2023, 7:59 PM ET other material materiality 0.50 neutral item 8.01item 9.01

  ME 2 C receives TSX Venture Exchange approval; shares begin trading July 10 under MEEC

  Final TSX-V approval received; common stock starts trading on TSX-V on July 10, 2023 under ticker "MEEC".

• July 6, 2023, 7:59 PM ET other material materiality 0.40 neutral item 5.02item 9.01

  Midwest Energy Emissions amends equity plans, increases shares available under 2017 Plan to 14.1M

  Board approved amendments to 2014 and 2017 Equity Incentive Plans to comply with TSXV requirements.

• May 30, 2023, 7:59 PM ET leadership materiality 0.30 neutral item 5.02item 9.01 ◈ executive_change

  Midwest Energy Emissions appoints Troy Grant to board, expands board to 4 members

  Board size increased from 3 to 4; Troy Grant appointed effective May 26, 2023.

• April 20, 2023, 7:59 PM ET earnings materiality 0.50 positive item 2.02item 9.01 ◈ Earnings Releases

  ME2C Environmental reports Q4 revenue $5.7M (+110% YoY) and FY22 revenue $21.6M (+66% YoY)

  Q4 2022 revenue $5.7M vs $2.7M in Q4 2021, an increase of 110%.

• February 15, 2023, 6:59 PM ET leadership materiality 0.50 neutral item 5.02item 9.01 ◈ executive_change

  Midwest Energy Emissions appoints Greg Powell as CFO effective March 1, 2023

  Greg Powell, 51, appointed CFO effective March 1, 2023; has over 15 years senior finance experience.

• February 3, 2023, 6:59 PM ET other material materiality 0.60 neutral item 1.01item 9.01 ◈ Material Agreements

  Midwest Energy enters license & supply deal with CEO-owned Dakin for emissions technology

  ME2C receives exclusive U.S. license and limited manufacturing license for Dakin's boiler combustion IP.

• January 25, 2023, 6:59 PM ET other materiality 0.10 neutral item 7.01item 9.01

  Midwest Energy Emissions files investor presentation; no material new info available

  Filed investor presentation under Item 7.01 for meetings with investors on or after Jan 25, 2023.

• January 18, 2023, 6:59 PM ET earnings materiality 0.75 positive item 2.02item 9.01 ◈ Earnings Releases

  ME2C Environmental reports preliminary 2022 revenue of $21.6M, up 66% YoY; expects 50%+ growth in 2023

  Preliminary unaudited revenue for FY2022 of $21.6M, exceeding prior guidance, 66% growth over 2021.

• December 7, 2022, 6:59 PM ET leadership materiality 0.60 negative item 5.02item 9.01 ◈ executive_change

  Midwest Energy Emissions CFO Jami Satterthwaite resigns effective Dec 30, 2022

  CFO Jami L. Satterthwaite submitted resignation effective Dec 30, 2022 for personal reasons.

• November 2, 2022, 7:59 PM ET debt materiality 0.75 negative item 1.01item 1.02item 2.03item 9.01 ◈ Material Agreements ×4

  Midwest Energy Emissions extends $13.2M note maturity to 2025, increases profit share by $4.5M

  Unsecured note maturity extended from Oct 31, 2022 to Aug 25, 2025; principal outstanding $13,154,931.

• September 30, 2022, 7:59 PM ET debt materiality 0.60 neutral item 1.01item 2.03item 9.01

  Midwest Energy Emissions extends debt maturity to Oct 31, 2022 with lender AC Midwest

  AC Midwest Energy LLC agreed to further extend maturity date on secured and unsecured debt from Sept 30 to Oct 31, 2022.

• August 31, 2022, 7:59 PM ET debt materiality 0.65 neutral item 1.01item 2.03item 9.01

  Midwest Energy Emissions extends debt maturity from Aug 25 to Sep 30, 2022

  AC Midwest Energy LLC extended maturity of outstanding secured and unsecured debt from August 25, 2022 to September 30, 2022.

• August 8, 2022, 7:59 PM ET other material materiality 0.50 negative item 4.01item 9.01

  Midwest Energy Emissions appoints Marcum LLP as auditor; prior reports flagged going concern

  Board approved Marcum LLP as independent auditor for FY2022 on Aug 3, 2022.

• June 6, 2022, 7:59 PM ET other material materiality 0.25 neutral item 3.02item 5.02item 9.01

  Midwest Energy Emissions grants stock options to execs, issues shares to directors and consultant

  Granted nonqualified options to CTO John Pavlish and VP James Trettel: 500k shares each at $0.21, fully vested.

• March 10, 2022, 6:59 PM ET other material materiality 0.60 positive item 2.02item 9.01

  ME 2 C forecasts 2022 revenue of $20–22M, up ~60% YoY; 2021 preliminary rev $13M

  Preliminary unaudited 2021 revenue ~$13.0M, vs $8.2M in 2020.

• February 25, 2022, 6:59 PM ET other material materiality 0.35 neutral item 5.07item 9.01

  Midwest Energy Emissions stockholders approve reverse stock split authorization (1:2 to 1:7)

  Proposal to authorize reverse stock split (range 1-for-2 to 1-for-7) approved: 61,925,163 For, 2,692,273 Against, 33,777 Abstain.

• February 17, 2022, 6:59 PM ET earnings materiality 0.70 positive item 2.02item 9.01

  MEEC reports preliminary 2021 revenue of $13.0M; guides 2022 revenue up at least 60%

  Preliminary 2021 revenue $13.0M compared to $8.2M in 2020, a 58.5% increase.

• January 28, 2022, 6:59 PM ET debt materiality 0.50 neutral item 1.01item 8.01item 9.01

  Midwest Energy Emissions extends debt repayment deal with Alterna to June 30, 2022

  Amendment extends closing date for repaying all secured and unsecured debt held by AC Midwest (Alterna) to June 30, 2022.

• November 26, 2021, 6:59 PM ET other material materiality 0.45 neutral item 5.02item 9.01

  Midwest Energy Emissions grants stock options to executives and directors; CEO gets 750k shares

  CEO Richard MacPherson granted nonqualified options for 750,000 shares at $0.78 strike.

• November 5, 2021, 7:59 PM ET earnings materiality 0.85 positive item 2.02item 9.01

  MEEC reports preliminary Q3 revenue at least $4.9M, up ~75% YoY; highest quarterly revenue in over 3 years

  Preliminary Q3 2021 revenue at least $4.9M, up approx 75% YoY from $2.8M in Q3 2020.

• October 5, 2021, 7:59 PM ET litigation materiality 0.70 positive item 7.01item 9.01

  Midwest Energy Emissions patent suit vs refined coal entities advances; trial set Sep 2023

  Lawsuit filed July 2019 against 43 defendants for patent infringement; 16 refined coal defendants remain; discovery ongoing.

Executive changes

Earnings & guidance

Materiality & sentiment trend

Max materiality 0.85 · Median 0.50 · Most common event other_material

12 positive 5 negative 29 neutral

source · BCHT on sec.gov