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).
LifeStance Health Group disclosed that director Teresa DeLuca, M.D., notified the board on October 14, 2026, of her resignation from the board and all of its committees, effective December 31, 2026. The company states the resignation is not the result of any disagreement with the company.
Teresa DeLuca, M.D., resigns from the board of directors and all committees.
Resignation notified to the board on October 14, 2026, effective December 31, 2026.
Company states the resignation does not result from any disagreement with Dr. DeLuca.
Filing does not name a replacement director or describe any financial effect.
Titan International entered a deferred compensation arrangement with CEO Paul G. Reitz worth $2.3 million, with payments not starting until 2030. The company funds the obligation by placing about 332,370 shares of common stock in an irrevocable rabbi trust, where assets remain subject to general creditors in insolvency.
Deferred compensation of $2.3 million awarded to CEO Paul G. Reitz under a plan approved by the Board on October 12, 2026
Payments will not begin until 2030, paid as a lump sum or installments as Mr. Reitz elects
About 332,370 shares, valued at approximately $2.3 million, will be contributed to the rabbi trust, which the Trustee votes
Trust assets remain subject to general creditors if the company becomes insolvent
On October 14, 2026, Silver Bow Mining's board approved a grant of 2,000,000 performance warrants to CEO C. Travis Naugle, subject to NYSE American and any required shareholder approval. The board also amended 200,000 existing performance warrants, replacing a preliminary economic assessment milestone with milestones tied to the pending Jefferson County Metallurgical Complex acquisition and a term sheet with Ocean Partners UK Limited.
New warrants allow purchase of up to 2,000,000 common shares, with exercise prices of $12.00 for four milestones and $18.00 for the production milestone
The grant date will be the date shareholders approve the new warrants under NYSE American rules; no shares may be issued before then
Montana Tunnels milestones, including the September 8, 2026 initial closing of the Jefferson County acquisition and the September 21, 2026 term sheet, were deemed achieved as of October 2, 2026
The term sheet provides for a potential funding and credit support package of approximately $88 million
PharmaCyte Biotech's Audit Committee dismissed CBIZ CPAs as its independent registered public accounting firm on October 14, 2026, and engaged Grassi & Co., CPAs as its replacement. The filing reports no adverse or qualified audit opinions from CBIZ CPAs for fiscal 2026 and 2025, but it discloses material weaknesses in internal control tied to segregation of duties of the Chief Financial Officer and management review controls.
Dismissal of CBIZ CPAs effective October 14, 2026; CBIZ CPAs' reports for fiscal years ended April 30, 2026 and 2025 contained no adverse opinion, disclaimer, or qualification
Grassi & Co. approved October 14, 2026 to audit fiscal year ending April 30, 2027 and review interim statements starting with the quarter ending October 31, 2026
Disclosed material weaknesses relate to insufficient segregation of duties of the Chief Financial Officer and insufficient management review controls
CBIZ CPAs letter dated October 16, 2026 filed as Exhibit 16.1
On October 16, 2026, Mary Szela resigned from the board of Averin Capital Acquisition Corp. and from its audit and compensation committees, effective the same day, and the filing says the resignation was not due to any disagreement with the company. The board filled the open seats by naming Graeme Bell as compensation committee chairperson and Akiko Moni Miyashita as an audit committee member, both effective October 16, 2026.
Mary Szela resigned from the board, the audit committee and as chair of the compensation committee, effective October 16, 2026.
The filing states her resignation was not the result of any disagreement with the company on operations, policies or practices.
Graeme Bell was appointed compensation committee chairperson and Akiko Moni Miyashita was appointed to the audit committee, both effective October 16, 2026.
Waterstone Financial, Inc. said director Derek L. Tyus resigned from the boards of the company and WaterStone Bank SSB, effective October 20, 2026, citing a new professional commitment. The filing states the resignation did not result from any disagreement with the company or bank on operations, policies or practices.
Derek L. Tyus resigned from the Boards of Directors of the Company and the Bank, effective October 20, 2026.
Tyus joined the boards in 2021 and served on the Audit and Compensation Committees of the Company Board and the Bank Board's Executive Committee.
The company said the resignation was due to a new professional commitment and was not the result of any disagreement.
Chairman Patrick S. Lawton thanked Tyus for his service in the press release.
Costco's board committees approved fiscal 2027 bonus criteria for executive officers, tying payouts to sales, pre-tax income and environmental and social metrics. The filing sets base bonus amounts for the CEO and other executive officers, with payouts scaling by performance.
CEO base bonus of $1.2 million for fiscal 2027, split $500,000 on sales targets and $500,000 on pre-tax income targets, plus up to $200,000 on environmental and social metrics
Other executive officers have base bonuses of $400,000, split $160,000 on sales and $160,000 on pre-tax income, plus up to $80,000 on environmental and social objectives
Each financial goal can pay from zero up to 120% of target; criteria approved October 13, 2026
CalciMedica's Chief Financial Officer, principal accounting officer and principal financial officer, Stephen Bardin, gave notice of his resignation on October 15, 2026, to pursue another professional opportunity. The resignation takes effect immediately after the company files its Form 10-Q for the quarter ended September 30, 2026, and the company said it was not due to any disagreement.
Stephen Bardin is CFO, principal accounting officer and principal financial officer.
Notice given October 15, 2026; effective immediately after the Q3 2026 Form 10-Q is filed.
Resignation is to pursue another professional opportunity, and the company states no disagreement was involved.
The filing names no successor or interim financial officer.
TScan Therapeutics disclosed that directors Garry Nicholson and Gabriela Gruia, M.D., resigned from its Board of Directors and all board committees, effective October 13, 2026, with no disagreement with the company cited. The board filled the vacancies on its committees, appointing Stephen Biggar and R. Keith Woods to the Nominating and Corporate Governance Committee, which matters to shareholders as a change in board composition and committee makeup.
Garry Nicholson and Gabriela Gruia, M.D., resigned from the board and all committees effective October 13, 2026.
The filing states the resignations were not due to any disagreement with the company on operations, practices or policies.
Stephen Biggar (member) and R. Keith Woods (chairperson) were appointed to the Nominating and Corporate Governance Committee effective October 13, 2026.
The Audit Committee now consists of Katina Dorton, Barbara Klencke and R. Keith Woods.
Post Holdings said its Senior Vice President and Chief Accounting Officer, Bradly A. Harper, is taking a temporary medical leave, with CFO Matthew J. Mainer serving as interim principal accounting officer. The board also approved an updated Code of Conduct, effective February 1, 2027, that adds new content on areas such as artificial intelligence and cybersecurity while stating it does not waive any provision of the prior code.
Bradly A. Harper, SVP and Chief Accounting Officer, is on temporary medical leave; the filing gives no return date.
Matthew J. Mainer, EVP, CFO and Treasurer, is interim Chief Accounting Officer and principal accounting officer during the leave.
Board approved the New Code on October 15, 2026; it takes effect February 1, 2027 and supersedes the Prior Code.
New Code adds content on artificial intelligence, prediction markets and fraud prevention, and expands topics including cybersecurity and conflicts of interest.
Terra Innovatum Global N.V. dismissed KPMG Accountants N.V. as its independent auditor, effective October 12, 2026, and intends to engage MaloneBailey, LLP for fiscal 2026. The company says the change was not due to any disagreement with KPMG, but the filing notes material weaknesses in internal control over financial reporting that have not been remediated.
Audit Committee dismissed KPMG on October 9, 2026, effective October 12, 2026.
KPMG's report on fiscal 2025 financial statements contained no adverse opinion, disclaimer, or qualification.
Filing cites material weaknesses in internal control disclosed in the 2025 Form 10-K and the June 30, 2026 Form 10-Q, which have not been remediated.
MaloneBailey previously audited the company from April 29, 2025 to January 15, 2026; engagement is subject to client acceptance procedures.
Alliance Entertainment's Compensation Committee approved a raise in the annual base salary of Chief Financial Officer Amanda Gnecco to $350,000, effective October 1, 2026, up from $247,200. The filing also sets her prorated fiscal 2027 target bonus at $81,075, a routine compensation change with no stated effect on company results.
CFO Amanda Gnecco's annual base salary rises to $350,000 from $247,200, effective October 1, 2026.
Her prorated target annual bonus for the fiscal year ending June 30, 2027, is $81,075.
The Compensation Committee authorized the change on October 12, 2026; the 8-K was dated October 16, 2026.
Bank of Marin and Brandi Campbell, its Executive Vice President and Head of Retail Banking, mutually agreed that her employment would end on October 16, 2026, under a separation agreement effective that day. In exchange for a release of claims, she is entitled to three months' pay in a lump sum and nine months of COBRA premium reimbursement. The filing does not name a successor, so shareholders will need to watch for an update on who will lead retail banking.
Employment termination date: October 16, 2026, mutually agreed by the Bank and Ms. Campbell
Severance: three months' pay in a lump sum, less applicable deductions and withholdings
Benefits: nine months of reimbursement for COBRA premiums, in exchange for a release of claims
Filing signed October 16, 2026 by CFO David Bonaccorso
TOMI Environmental Solutions appointed Niroshan Srirathan, its interim chief financial officer, as permanent CFO, effective immediately, with the board action dated October 11, 2026. He has an annual base salary of $205,000 under an offer letter, and the company says the full letter will be filed as an exhibit to its next periodic report.
Board appointed Niroshan Srirathan, age 39, as permanent Chief Financial Officer on October 11, 2026, effective immediately.
Srirathan previously served as Interim CFO since May 16, 2026, and as Controller since May 4, 2026.
Annual base salary under the offer letter is $205,000.
The filing states no family relationships with directors or executive officers and no reportable related-person transactions.
Ocular Therapeutix said its Chief Strategy Officer, Sanjay Nayak, resigned, effective October 16, 2026, to become CEO of a privately held company. The filing does not name a successor or describe any transition arrangements.
Sanjay Nayak notified the company of his resignation on October 14, 2026.
Resignation is effective October 16, 2026.
He is leaving to become Chief Executive Officer of a privately held company, which the filing does not name.
The filing does not name a successor or give financial terms.
Quantum Cyber N.V. appointed Major General (Retired) Alberto C. Rosende as an independent director effective October 12, 2026, filling a board vacancy, and named him to the Audit, Compensation, and Nomination committees. The same day, Peter M. O'Rourke resigned from the board and as President of subsidiary Quantum Drones Corporation, and his employment agreement was terminated; the filing says the resignation was not due to a disagreement with the company.
Alberto C. Rosende appointed director effective October 12, 2026, with a term until the 2027 annual general meeting
Rosende named to the Audit, Compensation, and Nomination committees; board determined he is independent under Nasdaq rules
Peter M. O'Rourke resigned from the board and as President of Quantum Drones Corporation effective October 12, 2026
O'Rourke's employment agreement, effective July 1, 2026, was terminated; filing states no disagreement with the company
Christopher J. Hagedorn, the company's Executive Vice President & Chief Strategy Officer, is leaving on September 30, 2026, under a Separation Agreement signed October 13, 2026. The agreement provides 24 months of salary, a bonus amount equal to 2.0 times his target bonus, and other benefits, and forfeits his unvested equity awards.
Departure date: September 30, 2026; separation agreement signed October 13, 2026
Severance includes 24 months of salary and a bonus amount equal to 2.0 times his target bonus, paid in two installments
Unvested stock options and performance units granted in 2024, 2025 and 2026 are forfeited; 57,033 options granted November 16, 2023 vested in full
Incentive payout for fiscal 2026 is scheduled for November 2026 and will depend on actual performance results
AT&T said Lori M. Lee, its Global Marketing Officer and Senior Executive Vice President of International, will retire effective December 31, 2026. The company said her role will be eliminated as part of a divestiture of its Mexico wireless business and other reorganization efforts. The filing does not disclose financial results or the terms of the Mexico sale.
Lori M. Lee announced her retirement on October 14, 2026, effective December 31, 2026.
Her role is being eliminated in connection with the Mexico wireless business divestiture and other reorganization.
AT&T announced on October 13, 2026 that it agreed to sell its wireless business in Mexico.
On October 14, 2026, Copart's board approved a 10-year stock option for 20,000,000 shares for CEO A. Jayson Adair, granted outside the company's 2007 Equity Incentive Plan. The option cannot be exercised unless stockholders approve it at the 2026 Annual Meeting or a later special meeting, and it is forfeited if they do not. Shareholders may care because the award is large and is described as Adair's only substantive pay for the 10-year period, with a $1 annual salary and no expected bonus.
Option covers 20,000,000 shares in four tranches of 5,000,000 shares at $26.27, $35.03, $43.78 and $52.54 per share
Option has a 10-year term and first becomes exercisable on the 5th anniversary of the October 14, 2026 grant date, subject to continued service as CEO
Requires stockholder approval at the 2026 Annual Meeting or a special meeting after it; otherwise forfeited in full
Adair is expected to receive a $1 salary each year and no bonus or additional equity awards during the 10-year period
WidePoint Corporation's Chief Financial Officer, Robert George, tendered his resignation on October 9, 2026, citing personal and family reasons and stating no disagreement with the company. The resignation takes effect when the Form 10-Q for the quarter ended September 30, 2026 is filed, and he will assist in a non-officer role during the transition.
Robert George resigned as Chief Financial Officer; notice dated October 9, 2026
Resignation effective upon filing of the Form 10-Q for the quarter ended September 30, 2026
Resignation is for personal and family reasons, not a disagreement with the company
Mr. George will continue in a non-officer capacity to support an orderly transition
Union Pacific said Chief Financial Officer Jennifer Hamann will retire in early 2027 after 35 years with the company, and she will keep her current responsibilities until then. The company has not yet named a successor and said it will announce succession plans and further transition details at a later date.
Jennifer L. Hamann, Executive Vice President and Chief Financial Officer, plans to retire effective in early 2027.
Hamann joined Union Pacific in 1992 and was named chief financial officer in January 2020.
Union Pacific said it will announce succession plans and additional transition details at a later date.
The filing reports no financial results; the announcement is furnished as Exhibit 99.1.
Erasca, Inc. said its Chief Operating Officer, Nicholas (Nik) Chetwyn, Ph.D., will leave the company, with employment ending November 2, 2026. The company said duties overseen by the COO are moving to other leadership team members to streamline its reporting structure. The filing does not disclose a successor or any financial terms of the departure.
Chief Operating Officer Nicholas (Nik) Chetwyn, Ph.D., employment terminates effective November 2, 2026
Decision made October 15, 2026, as part of a leadership realignment
COO responsibilities are transitioning to other members of the leadership team
Filing does not name a replacement or disclose separation terms
AutoNation increased its Board to ten directors and appointed Mark Stewart as an independent director, effective immediately, on October 13, 2026. Stewart is the former Chief Executive Officer and President of The Goodyear Tire & Rubber Company, and he will receive the standard non-employee director retainer of $50,000 per year. The filing reports no financial results, and the appointment is a governance change with limited direct financial effect on shareholders.
Board increased from nine to ten directors; Mark Stewart appointed effective immediately on October 13, 2026
Stewart's annual Board retainer is $50,000, prorated for 2026, and he is eligible for future equity awards under the 2024 Non-Employee Director Equity Plan
Stewart has served as CEO and President of Goodyear and a Goodyear director since January 2024
Board Chairman Rick Burdick said Stewart's experience will strengthen the Board
Espey Mfg. & Electronics dismissed WithumSmith+Brown as its independent registered public accounting firm on October 13, 2026, and selected PKF O'Connor Davies to audit its fiscal year ending June 30, 2027, subject to PKF's client acceptance procedures. The filing states that Withum's reports for fiscal 2025 and 2026 contained no adverse opinion, disclaimer, or qualification, and that there were no disagreements or reportable events with Withum.
Withum dismissed October 13, 2026 on Audit Committee recommendation
PKF O'Connor Davies selected as new auditor for fiscal year ending June 30, 2027
Withum's reports for fiscal years 2025 and 2026 had no adverse opinion, disclaimer, or qualification
Withum's letter to the SEC dated October 15, 2026 is filed as Exhibit 16.1
Emergent BioSolutions said Chief Financial Officer Richard Lindahl will step down as principal financial and accounting officer effective December 31, 2026, and retire on March 31, 2027, after serving as an advisor. Frank Vargo, the company's Vice President and Treasurer, will become Interim Chief Financial Officer on January 1, 2027. The filing reports no financial results, so the change is a leadership transition rather than a change in reported performance.
Richard Lindahl steps down as principal financial and accounting officer effective December 31, 2026, and serves as an advisor until retiring on March 31, 2027.
Frank Vargo, Vice President and Treasurer, becomes Interim Chief Financial Officer on January 1, 2027.
Vargo's interim pay is an additional $3,850 per pay period on top of his base salary of $328,000.
Lindahl will help prepare the Form 10-K for the year ending December 31, 2026.
Truist said Dontá L. Wilson, its senior executive vice president and chief consumer and small business banking officer, will leave the bank effective December 31, 2026. The company also named several executives to new roles, including D. Steve Boland as vice chair and Jeff Warner as chief small business banking officer, and said Shimna Sameer will become chief consumer banking officer. The filing does not include financial results or a change to guidance.
Dontá L. Wilson will leave Truist effective December 31, 2026; his separation benefits are subject to a release of claims and restrictive covenants
D. Steve Boland joins as vice chair after retiring from Bank of America in 2025
Jeff Warner joins from PNC Financial Services Group as chief small business banking officer, with more than 25 years at PNC
Shimna Sameer becomes chief consumer banking officer; Jeff Dunn and Bryan Cram will serve as interim co-heads of Truist Wealth
REGENXBIO's board director Kenneth T. Mills resigned effective October 21, 2026, saying he became CEO of another company and will focus on that role, not on any disagreement with the company. The board named George Migausky as Chairman, and Daniel Tassé stepped down as Lead Independent Director but remains on the board. The change is a board governance update with no financial figures disclosed.
Kenneth T. Mills resigned from the board on October 14, 2026, effective October 21, 2026
Mr. Mills cited his new role as chief executive officer of another company; filing says no disagreement with the company
George Migausky appointed Chairman of the Board
Daniel Tassé stepped down as Lead Independent Director under the Corporate Governance Guidelines and remains a director
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.