3,560 material Form 8-K filings that 2,489 companies we cover made with the SEC in October 2026, each read and summarized by AI: what happened, the key figures, whether it reads positive or negative for shareholders, and how big a deal it is (impact 1-5). 2,508 of them were written later, when past filings were added: a selection, not every 8-K of the month (see the note below).
Polar Power's board approved a co-CEO structure under which Chris Mayer became Co-Chief Executive Officer effective October 6, 2026, while Arthur Sams continues as Co-CEO and President. Mayer will oversee corporate strategy, financial performance, investor relations and capital allocation, and Sams will oversee operations, and Mayer is also the managing member of CL Investment, an investor that holds the Company's securities and has a board designee.
Chris Mayer, age 30, appointed Co-CEO effective October 6, 2026, with no compensatory arrangement disclosed for his appointment.
Arthur Sams remains Co-CEO and President; his compensation will not change under the new structure.
Mayer controls CL Investment, which bought 833 Series A Convertible Preferred shares and warrants for 227,182 common shares on August 5, 2026, and a $82,500 convertible note for $75,000 on August 28, 2026.
The Company announced the structure in a press release dated October 12, 2026, citing growth opportunities in telecom, data centers and defense.
Michael Gathy told Lazard on October 12, 2026 that he will resign as Chief Accounting Officer and principal accounting officer to pursue other opportunities, effective December 11, 2026. CFO Tracy Farr will take on the principal accounting officer role on that date, at no additional compensation, so the change is an executive transition in the accounting function rather than a change in company financial results.
Gathy informed the company on October 12, 2026 and resigns effective December 11, 2026
CFO Tracy Farr will assume the principal accounting officer role as of the effective date
Farr will receive no additional compensation for the added role
The filing reports no arrangements with other persons or related-party transactions for Farr
Brightline Interactive disclosed that director Brian Archer, chair of the Audit Committee, will resign effective at the 2026 annual meeting of shareholders, and that the board plans to name a successor by its first meeting after that meeting. The filing also discloses that CFO William Keneally is provided through a consulting agreement with CXO Partners at $15,000 per month, which is a structure the company says is not a standard employee benefit arrangement.
Brian Archer tendered his resignation on October 6, 2026; he stays on the board until the 2026 annual meeting and says the decision was not tied to any disagreement with the company.
The company's CFO, William Keneally, is serving through a consulting agreement with CXO Partners dated October 9, 2026, at a monthly fee of $15,000, effective June 16, 2026 through February 15, 2027.
Director Pete Fesler was moved from Class I to Class III, with his term now expiring at the 2026 annual meeting, as part of a board reclassification effective October 13, 2026.
Expand Energy appointed Sarah Grose as Vice President and Chief Accounting Officer, and she now serves as principal accounting officer. The role had been held on an interim basis by CFO Marcel Teunissen. The filing discloses her base salary, bonus target and long-term incentive target, which are modest relative to executive officer pay and unlikely to materially affect shareholders.
Sarah Grose appointed effective October 8, 2026; previously interim principal accounting officer duties were held by CFO Marcel Teunissen
Annual base salary of $325,000 with a cash bonus target of 50% of base salary, prorated for 2026
Annual long-term incentive target of $500,000 under the 2021 Long-Term Incentive Program
Grose joined the company in 2019 and most recently served as Director – Corporate Accounting from 2021 to 2026
Hertz Global Holdings appointed Joseph R. Hinrichs as a Class I director effective immediately, with a board appointment dated October 9, 2026. He will serve on the Audit and Risk Committee and receives standard non-employee director pay. The filing contains no financial results, and the board change is administrative in nature for shareholders.
Board appointed Joseph R. Hinrichs as a Class I director on October 9, 2026, effective immediately
He will serve on the Audit and Risk Committee
Annual compensation: restricted stock units valued at $175,000 and a $100,000 annual cash retainer
He has entered into a standard indemnification agreement with the company
Genworth Financial said its Vice President and Controller, Darren W. Woodell, who serves as principal accounting officer, intends to resign to pursue a new opportunity, effective in early November 2026 after the Form 10-Q for the period ending September 30, 2026 is filed. The filing states the resignation is not due to any disagreement with the company on operations, policies or practices. Chief Financial Officer Jerome T. Upton will serve as interim principal accounting officer until a successor is appointed, a change that is administrative in nature for shareholders.
Darren W. Woodell notified Genworth of his intent to resign on October 8, 2026
Departure is effective in early November 2026, after the Form 10-Q for the period ending September 30, 2026 is filed
Jerome T. Upton, Executive Vice President and CFO, will serve as interim principal accounting officer
Upton's compensatory arrangements will not change; his details are incorporated by reference from the April 6, 2026 Proxy Statement
SAIC said Kenneth Crews, former Corporate Vice President and CFO of Northrop Grumman, will become Executive Vice President and Chief Financial Officer effective December 7, 2026, after joining as CFO-elect on October 30, 2026. Prabu Natarajan, the current CFO, will become permanent Executive Vice President of the Civilian Business Group and will cease being CFO as of the effective date.
Kenneth (Ken) Crews, age 45, joins October 30, 2026 as CFO-elect and assumes the CFO role December 7, 2026
Crews' annual base salary is $740,000, with a short-term incentive cash bonus target of 100% of base salary
Crews receives a one-time sign-on cash payment of $250,000 and a sign-on RSU award with a $2,000,000 grant date value
Prabu Natarajan becomes permanent Executive Vice President, Civilian Business Group, and continues as Executive Vice President of Enterprise Operations
Corsair Gaming director Sarah Kim notified the board on October 7, 2026 that she will resign effective December 31, 2026, citing other professional commitments. The filing says her departure was not due to any disagreement with the company on operations, policies or practices.
Sarah Kim notified the board on October 7, 2026 of her decision to resign.
Resignation is effective December 31, 2026.
Kim served on the board for nearly five years, including on the Compensation Committee.
The filing cites other professional commitments and states no disagreement with the company.
Accuray director Mika Nishimura, a Class II director, told the board on October 8, 2026 that she will not stand for re-election at the 2026 annual meeting of stockholders, expected in November 2026. She will remain a director and chair of the Compensation Committee until that meeting, and the company said her decision is not due to any disagreement with the company or its board. For shareholders, this is a routine board turnover with no stated effect on operations.
Mika Nishimura, a Class II director, informed the board on October 8, 2026 of her decision.
She will not stand for re-election at the 2026 annual meeting, to be held in November 2026.
She continues as a director and Chairperson of the Compensation Committee until the annual meeting concludes.
The company states the decision is not due to any disagreement with the company or board, or any matter relating to operations, policies or practices.
Niki BioSolutions appointed Thomas Freeburg as its Chief Financial Officer under an employment agreement, with the appointment effective September 1, 2026, for a two-year term that either party can end on 45 days' notice. The filing says his base salary is $250,000, with $25,000 of each monthly payment deferred until the company receives certain funding, and he is eligible for an annual bonus of up to 50% of base salary plus 50,000 stock options at $8.83 per share.
Board appointed Thomas Freeburg as CFO on October 9, 2026, effective as of September 1, 2026
Base salary of $250,000, rising to $275,000 upon receipt of additional company funding
Eligible for an annual bonus of up to 50% of base salary and 50,000 stock options priced at $8.83 per share
Freeburg previously served as CFO of Interpace Biosciences, Inc. from February 2021 through March 2023
Merck & Co. said Paul J. Diaz, managing partner at Cressey & Company, will join its Board of Directors effective Nov. 1, 2026, bringing the board to 14 members. He will stand for election by shareholders in May 2027 and will serve on the Audit and Research Committees, and he will be paid as a non-employee director under the company's published compensation practices.
Diaz joins the board effective Nov. 1, 2026, and will stand for shareholder election in May 2027.
He was appointed to both the Audit Committee and the Research Committee.
The board will have 14 members after his addition.
Diaz previously served as president and CEO of Myriad Genetics, Inc. and Kindred Healthcare.
Danaher's board increased its size to thirteen members and appointed Daniel L. Comas and Robert M. Hershberg as directors effective October 9, 2026. Director Alan G. Spoon will retire from the board at the 2027 annual meeting, and founders Steven and Mitchell Rales waived 500,000-share RSU grants each for no consideration.
Board increased to thirteen members; Daniel L. Comas and Robert M. Hershberg appointed effective October 9, 2026
Comas, a former Danaher CFO, ended his consulting agreement effective September 30, 2026, after earning $393,750 in 2026 and $525,000 in 2025
Alan G. Spoon will not stand for re-election and retires effective at the 2027 annual meeting; he cited no disagreement with the company
Steven and Mitchell Rales each waived Founder RSUs covering 500,000 shares granted August 4, 2026, for no consideration
MetaVia Inc. named Sarah Browne, M.D. as its Chief Medical Officer, effective October 12, 2026, as disclosed in an 8-K filed October 13, 2026. The company said she will support development of DA-1726 ahead of an anticipated fourth quarter 2026 topline data readout from Part 3 of a Phase 1 trial.
Appointment effective October 12, 2026; announced in a press release dated October 13, 2026
Dr. Browne previously led clinical development of pemvidutide at Altimmune, Inc., through Phase 2
Company expects topline data from Part 3 of the Phase 1 DA-1726 trial, testing 48 mg and 64 mg doses, in Q4 2026
Peloton's Chief Accounting Officer and principal accounting officer, Saqib Baig, notified the company on October 8, 2026, that he will step down to pursue an external opportunity, and he will remain in the role until November 27, 2026. The company has started searching for a replacement, and the filing says the departure is not related to any disagreements or issues about financial disclosures or accounting matters.
Saqib Baig will remain Chief Accounting Officer until November 27, 2026
Notice of departure was given to the company on October 8, 2026
The company has started a search for candidates to fill the role
Baig will receive no severance or benefits under the company's Severance and Change in Control Plan
M Evo Global Acquisition Corp II (MEVO) appointed Richard Majlinder as a director effective immediately on October 6, 2026, to fill a Board vacancy. The Board determined he is independent under Nasdaq standards and an audit committee financial expert, and he will sit on the Audit and Compensation Committees.
Appointed October 6, 2026 to fill a Board vacancy; term expires at the third annual general meeting
Board determined he is independent under Nasdaq listing standards and an audit committee financial expert
Serves on the Audit Committee and the Compensation Committee
Entered Letter Agreement and Indemnity Agreement dated October 12, 2026, on terms substantially the same as other directors
CSX Chief Operating Officer Michael Cory ceased serving as executive vice president and COO on October 12, 2026, and will provide transition services until May 8, 2027, when his employment ends. Operations leaders Doug Ryhorchuk and Casey Albright will now report directly to CEO Steve Angel, and the filing says the company's operating priorities are unchanged.
Cory stopped serving as EVP and COO effective October 12, 2026; his employment ends May 8, 2027
Transition agreement keeps his base salary at a $780,000 annual rate during the transition period, subject to a release of claims
Doug Ryhorchuk (SVP of Operations) and Casey Albright (SVP of Network Operations and Service Design) now report directly to Angel
Cory is bound by a non-compete and non-solicitation covenant for 24 months after his employment ends
Dauch Corporation said Nathan Iles will join as Senior Vice President of Finance on November 2, 2026, and will succeed Christopher May as Chief Financial Officer on December 1, 2026. May will move to Executive Vice President and Chief Administrative Officer, keeping IT and adding oversight of HR, and the filing says Terri Kemp will retire at the end of 2026.
Nathan Iles starts as Senior Vice President of Finance on November 2, 2026, and becomes CFO on December 1, 2026
Iles has been CFO of Standard Motor Products since 2019 and was previously CFO of UCI International Holdings from 2016 to 2019
Iles's offer letter sets a $650,000 base salary, a 100% target annual bonus and a 200% target long-term incentive
Christopher May becomes Executive Vice President and Chief Administrative Officer on December 1, 2026
Harmony Biosciences said CEO Jeffrey M. Dayno, M.D., will retire and leave the board on December 31, 2026, as part of a planned succession. Chief Operating Officer Peter Anastasiou will become President, Chief Executive Officer and a Class I director on January 1, 2027, and the company reiterated its full-year 2026 WAKIX net revenue guidance of $1.0 billion to $1.04 billion.
Dayno retires as President and CEO and steps down from the board on December 31, 2026, and will serve as a non-executive advisor through 2027.
Anastasiou, COO since April 2026, becomes President and CEO effective January 1, 2027, and joins the board as a Class I director.
The company reiterated full-year 2026 WAKIX net revenue guidance of $1.0 billion to $1.04 billion.
Harmony still expects to report multiple ascending dose study data for BP-205 in Q4 2026.
Zoetis said its Board of Directors appointed Iris Knobloch as a director, effective December 1, 2026, and increased the Board from twelve to thirteen members. She will serve on the Corporate Governance Committee. The filing describes a board addition and does not include financial results or guidance.
Board appointed Iris Knobloch on October 8, 2026; her seat takes effect December 1, 2026.
Board size increases from twelve to thirteen members effective December 1, 2026.
Knobloch will serve on the Corporate Governance Committee and is eligible for the non-employee director compensation program.
She is President of the Festival de Cannes and Chair of the Board of Deezer S.A.; she also sits on the boards of Lazard, Inc. and Vail Resorts, Inc.
Mueller Water Products said Chief Financial Officer Melissa Rasmussen will step down, with the change taking effect the first business day after the company files its 10-K for the fiscal year ended September 30, 2026. Mike Morgan, currently CFO of IvyTree Holdings LLC, was appointed Executive Vice President, Finance, effective October 28, 2026, and will become Executive Vice President and CFO at the transition date. The filing states the departure is not the result of any disagreement over financial statements, internal controls, operations, policies or practices.
Melissa Rasmussen steps down as Senior Vice President and CFO; she will serve as Senior Advisor through December 31, 2026.
Mike Morgan, age 56, was appointed Executive Vice President, Finance, effective October 28, 2026, and will become CFO at the transition date (the press release says on or about November 19, 2026).
Morgan's offer letter provides a $575,000 base salary, an 80% target bonus, a $1,300,000 target long-term incentive from fiscal 2027, and a $700,000 sign-on bonus.
Rasmussen's transition agreement provides a $431,897 retention payment and a fiscal 2026 bonus based on actual performance, subject to a release of claims.
Avery Dennison said its board elected Helen Sheirbon, currently senior vice president and chief operating officer of Global HP Solutions at HP Inc., as president of its Solutions Group, effective November 3, 2026. The filing sets a base salary of $625,000 and special equity and cash awards, which shareholders can review as part of the company's executive pay disclosure.
Sheirbon's role is effective November 3, 2026; the board elected her on October 9, 2026
Base salary of $625,000, with target annual incentive of 60% and target long-term incentive of 200% of base salary
One-time awards include $2,000,000 in restricted stock units, $1,500,000 in performance units, a $250,000 signing bonus and an $800,000 cash payment in February 2027
Sid Feltenstein, the board designee of Ronald N. Tutor, told Tutor Perini on October 7, 2026 that he will resign from the board effective October 30, 2026. The resignation follows Mr. Tutor's affiliated trusts selling company stock, which dropped his beneficial ownership below the 11.25% threshold needed to keep a designated seat. The company expects the board to shrink in size after his departure.
Sid Feltenstein resigns from the Board effective October 30, 2026, notice given October 7, 2026
Resignation triggered by Ronald N. Tutor's beneficial ownership falling below 11.25% after recent stock sales by affiliated trusts
Under the 2008 Shareholders Agreement, Mr. Tutor could designate one board member while holding at least 11.25%
The Board expects to reduce its size following the resignation
Brent Saunders left his roles as Bausch + Lomb chief executive and board member, effective October 12, 2026, under a mutually agreed separation. Thomas J. Appio, the board chairman who also serves as CEO of parent Bausch Health, was named interim CEO. The company said it expects to raise its full-year 2026 adjusted EBITDA guidance excluding Acquired IPR&D, based on preliminary third-quarter results.
Saunders' separation agreement provides a $75.5 million lump-sum cash payment and up to $50,000 in attorneys' fees, subject to a release of claims.
All of Saunders' outstanding equity awards, vested or unvested, were forfeited and cancelled.
Appio serves as interim CEO while remaining CEO of Bausch Health, the company's controlling shareholder.
The company expects to raise full-year 2026 adjusted EBITDA guidance excluding Acquired IPR&D; details are due with third-quarter results on October 28.
Charter Communications said Executive Vice President and Chief Commercial Officer Adam Ray will no longer serve in that role, effective October 12, 2026. He will stay on in a non-executive advisory capacity through December 31, 2026, and receives severance and equity vesting terms tied to a termination without cause, subject to signing a separation agreement. The change removes a senior commercial executive, but the filing gives no successor or financial impact figures.
Adam Ray ceases to serve as EVP and Chief Commercial Officer effective October 12, 2026
Ray remains employed in a non-executive advisory role through December 31, 2026
Severance and benefits follow a termination without cause, subject to a separation and release agreement
Certain restricted stock units and stock options continue to vest over original periods; options exercisable up to 60 months
Evernorth said Hugo Jeandesboz, former Co-Chief Investment Officer at Coinbase Asset Management, has joined as Chief Investment Officer to lead its XRP treasury strategy. The company also corrected the number of Class A shares issued to delayed funding subscribers at the October 9, 2026 closing of its business combination with Armada Acquisition Corp. II, after a clerical error, and revised several related share figures.
Hugo Jeandesboz joined as Chief Investment Officer and reports to CEO Asheesh Birla; he previously led Solutions at Coinbase Asset Management.
Delayed funding subscribers received 1,078,613 Class A shares at closing, not the 663,510 shown in the prior Form 8-K filed after closing.
The press release gives the delayed funding figure as 1,078,614 shares, while the 8-K gives 1,078,613.
Former SPAC public shareholders held 20.5% of outstanding Class A common stock as of closing.
Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.
Briefs marked “Written later” were written in November 2026 for filings that were by then more than three weeks old, so months before mid-October 2026 hold a selection: every material 8-K of the past year for the 100 largest companies we cover and the last 15 important 8-Ks of every other one. Briefs the number check holds back are not shown or counted. Also: the last 45 days, briefs by company, A–Z and the live SEC filings wire.