924 material Form 8-K filings that 737 companies we cover made with the SEC in January 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). All of them were written later, when past filings were added: a selection, not every 8-K of the month (see the note below).
BioLife Solutions said its Chief Quality and Operations Officer, Karen Foster, will retire effective March 31, 2026, after giving notice on January 8, 2026. The company states her decision was not due to any disagreement over its operations, policies or practices.
Karen Foster, Chief Quality and Operations Officer, gave notice of retirement on January 8, 2026
Retirement is effective March 31, 2026
The filing states no disagreement with the company on operations, policies or practices
Brink's disclosed that Michael Sweeney stopped serving as Chief Accounting Officer and Controller effective January 7, 2026. Chief Financial Officer Kurt McMaken will serve as Acting Chief Accounting Officer until a permanent successor is appointed, and the filing does not name one.
Michael Sweeney ceased as Chief Accounting Officer and Controller effective January 7, 2026
Kurt McMaken, the CFO, is Acting Chief Accounting Officer during the transition
No permanent successor was named in the filing; the company says transitional measures support continuity in accounting and reporting
Wynn Resorts said Craig Fullalove, currently CFO and Chief Administrative Officer of Wynn Macau, will become its Chief Financial Officer effective April 1, 2026. Julie Cameron-Doe, the current CFO, will retire from the CFO role effective March 31, 2026, and from the company as an officer effective June 1, 2026. The filing describes the change as a leadership transition and sets out Fullalove's pay and separation terms.
Craig Fullalove's employment agreement, dated January 8, 2026, runs three years from April 1, 2026, with a base salary of not less than $800,000.
Target annual bonus is 200% of base salary, and the annual restricted stock grant has a target value of 135% of base salary.
Without cause, or for material breach or good reason after a change of control, Fullalove would receive base salary for the rest of the term (at least 12 months), projected bonuses, and accrued vacation pay.
Cameron-Doe will enter a consulting agreement to help transfer her duties to her successor.
Oracle disclosed that directors George H. Conrades and Naomi O. Seligman are retiring from its board effective immediately, after 18 and 20 years of service, respectively. The filing states neither retirement resulted from any dispute or disagreement with Oracle on its operations, policies or practices.
George H. Conrades, age 86, notified the Board on January 5, 2026 of his retirement after 18 years of service
Naomi O. Seligman, age 87, notified the Board on January 7, 2026 of her retirement after 20 years of service
Both retirements are effective immediately; the filing states no disagreement with Oracle led to either departure
KKR & Co. Inc. announced on January 8, 2026 that Chief Operating Officer Ryan Stork is stepping down, effective immediately. The filing does not state a successor, the reason for the departure, or any financial impact, so shareholders have limited detail on how the change will affect operations.
Ryan Stork is stepping down as Chief Operating Officer of KKR & Co. Inc.
The departure was announced on January 8, 2026 and is effective immediately.
The filing does not name a replacement or give a reason for the departure.
Steven Madden entered a new three-year employment agreement with President Amelia Newton Varela, running January 1, 2026 through December 31, 2028, replacing her prior agreement that expired December 31, 2025. The filing sets her base salary, a performance-based cash bonus tied to EBIT, and a restricted stock grant worth $1.1 million, giving shareholders a clear view of the compensation terms for a senior executive.
Base salary of $825,000 for 2026, $850,000 for 2027 and $875,000 for 2028, plus a $1,250 monthly automobile allowance
Restricted stock grant of $1,100,000 in value, vesting 25% per year for four years starting January 2, 2027
Annual cash bonus of 30% to 80% of salary based on EBIT, with a threshold at 90% of plan and a maximum at 130% of plan
Charles River Laboratories announced that Chairman and CEO James Foster will step down, and Chief Operating Officer Birgit Girshick will become CEO, both effective May 5, 2026. Foster will remain a non-executive director, and Lead Independent Director Martin Mackay is expected to become Board Chair on the same date.
Birgit Girshick, current COO, to become CEO effective May 5, 2026, and to join the Board at the 2026 Annual Meeting
Base salary set at $1,200,000 effective February 1, 2026; initial equity grant with target value of $9,000,000
Severance if terminated without cause or for good reason before first anniversary of a change in control: three times salary plus target bonus
RadNet, Inc. announced on January 7, 2026 the promotion of four senior leaders to expanded executive roles, effective immediately. Stephen Forthuber and Norman Hames were elevated to President and Chief Executive Officer of their regional operations, and Mital Patel became Executive Vice President and Chief Operating Officer. The filing also discloses planned base salary increases effective January 1, 2026, for these officers and other executives, including the CFO.
Stephen Forthuber promoted from President and COO, Eastern Operations, to President and CEO, Eastern Operations
Norman Hames promoted from President and COO, Western Operations, to President and CEO, Western Operations
Mital Patel promoted to Executive Vice President and Chief Operating Officer; Dr. Greg Sorensen moved to Chief Strategy Officer
Base salaries to be revised to $950,000 for Forthuber, $950,000 for Hames and $925,000 for Patel, effective January 1, 2026
Polaris Inc. said director Kevin M. Farr informed the company on January 8, 2026 that he will resign from its Board of Directors, effective January 14, 2026. The filing states the resignation was not due to any disagreement with the company, its management, or the board on operations, policies, or practices.
Kevin M. Farr has served on the Polaris board since 2013.
Farr chairs the board's Audit Committee and sits on the Compensation Committee.
Resignation is effective January 14, 2026; the filing does not name a successor.
Marriott said Group President Liam Brown, who leads U.S. and Canada, and President Brian King, who leads Enterprise Transformation and the Caribbean and Latin America (CALA) region, will step down at the end of March 2026 and retire at the end of June 2026. The company is also realigning regional leadership: Satya Anand will lead a combined U.S., Canada and CALA structure, and Neal Jones will become President of Europe, Middle East and Africa (EMEA). The changes take effect March 28, 2026, and the filing includes no financial figures.
William P. Brown (Liam Brown) notified Marriott on January 6, 2026, of his intent to step down effective March 28, 2026 and retire effective June 30, 2026.
Satya Anand, currently President of EMEA, becomes Group President, U.S., Canada and CALA effective March 28, 2026.
Neal Jones becomes President, EMEA, and Federico "Fede" Greppi becomes President, CALA, both effective March 28, 2026.
Brown and King will remain with the company in advisory roles through June 2026.
Koppers Holdings said CFO Jimmi Sue Smith retired effective January 5, 2026, and Chief Accounting Officer Bradley Pearce was elected by the board to serve as interim CFO and CAO while an external search for a permanent successor is conducted. The filing states the retirement was not the result of any disagreement or matter relating to financial statements, internal controls, operations, policies or practices. The change puts a leadership transition in the finance function, though no permanent successor has been named.
Jimmi Sue Smith retired as CFO effective January 5, 2026, and remains Treasurer and an advisor through February 28, 2026
Bradley Pearce, age 59 and CAO since May 2019, is interim CFO and CAO and the principal financial officer
Pearce's base salary rose to $400,000 effective January 1, 2026; target annual cash incentive increased from 40 percent to 60 percent of base salary
A transition agreement with Smith is under negotiation; the company will file an amendment once executed
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.