815 material Form 8-K filings that 659 companies we cover made with the SEC in March 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).
Rush Enterprises said Chief Operating Officer Jason Wilder notified the company on March 18, 2026 that he will resign to pursue other opportunities, and that the resignation did not stem from any disagreement about operations, policies or practices. Director Michael J. McRoberts, a former COO now serving as Senior Advisor, will assist with COO duties and support the transition until the board appoints a new COO. The filing also furnishes an investor presentation that management plans to use with investors and analysts over the next couple of months.
Jason Wilder notified the company on March 18, 2026 of his decision to resign as Chief Operating Officer.
The filing states the resignation was not the result of any disagreement regarding the company's operations, policies or practices.
Michael J. McRoberts, a Board member and Senior Advisor, will assist with COO duties until the board appoints a new COO.
An investor presentation (Exhibit 99.1) will be used in meetings over the next couple of months and posted on the company's investor relations website.
Clear Secure said its General Counsel, Lynn Haaland, will leave the company on April 3, 2026. The company agreed to pay her an additional 12 months of salary in consideration for her services. The filing does not name a successor or describe the reasons for the departure.
General Counsel Lynn Haaland will depart on April 3, 2026
Company will provide an additional 12 months of salary to Ms. Haaland
Agreement reached March 19, 2026; filing signed by Chairman and CEO Caryn Seidman Becker
Tidewater director Darron M. Anderson told the Board on March 17, 2026 that he will not stand for reelection at the 2026 Annual Meeting of Stockholders. He will remain a director and serve on the Audit Committee and Safety & Sustainability Committee until his current term ends, and the filing says his decision did not stem from any disagreement with the company. The Board will shrink from eight seats to seven.
Darron M. Anderson notified the Board on March 17, 2026 of his intent not to stand for reelection.
He will serve until his current term expires at the 2026 Annual Meeting.
He sits on the Audit Committee and Safety & Sustainability Committee.
Board size will be reduced from eight directors to seven.
Assured Guaranty's Chief Credit Officer, Stephen Donnarumma, notified the company on March 13, 2026 that he will retire effective September 30, 2026. He will then serve as a senior advisor to the CEO through April 2, 2027, which gives the company a transition period for the credit role.
Stephen Donnarumma notified the company of his retirement on March 13, 2026, effective September 30, 2026.
He will serve as a senior advisor to the Chief Executive Officer from October 1, 2026 until April 2, 2027.
He has been Chief Credit Officer of Assured Guaranty Ltd. since 2018 and of Assured Guaranty Inc. since 2007, and joined the company in 1993.
CVS Health's Board elected John E. Gallina, former Elevance Health CFO, as a director effective March 19, 2026, and appointed him to the Audit Committee. The Board determined he is independent, and the filing describes him as an audit committee financial expert.
Board elected John E. Gallina, age 66, effective March 19, 2026; Board action taken March 18, 2026
Gallina served as Elevance Health CFO from June 2016 through November 1, 2023, and retired in May 2024
Appointed to the Audit Committee and designated an audit committee financial expert under SEC rules
Compensation as a non-employee director will be consistent with other directors, prorated for his start date
LiveRamp Holdings disclosed that director Brian O'Kelley informed the Board on March 18, 2026, of his intention to resign, effective immediately. The company stated the resignation was not the result of a disagreement on its operations, policies or practices.
Brian O'Kelley had served as a LiveRamp director since 2023.
Resignation was communicated to the Board on March 18, 2026, and is effective immediately.
The filing states the departure was not due to a disagreement with the company on operations, policies or practices.
Reinsurance Group of America appointed Peter Babej, a former Citigroup executive, to its Board of Directors, effective April 1, 2026, increasing the Board to twelve directors. The filing discloses no financial results or transactions, so the change is a governance update rather than a financial event for shareholders.
Peter Babej, 62, appointed to the Board effective April 1, 2026, for a term ending at the 2026 annual meeting
Babej formerly served as CEO of Citi Asia, Chairman and Interim Head of Banking, and Global Head of Financial Institutions at Citigroup
Board size increases to twelve directors; he has not yet been named to any committees
The company reports no related-person transactions above $120,000 involving Babej since December 31, 2022
Tripadvisor said on March 18, 2026 that Chair Greg Maffei and board member Albert Rosenthaler will not stand for re-election at the company's 2026 Annual Meeting of Shareholders. The filing says their decisions were not the result of any disagreement with the company on its operations, policies, or practices. The departures remove two board members, including the chair, and the board will need to address that change before or at the 2026 meeting.
Greg B. Maffei, Chair of the Board, notified the company and board on March 18, 2026 that he will not stand for re-election.
Albert E. Rosenthaler, a board member, gave the same notice on March 18, 2026.
The departures apply to the company's 2026 Annual Meeting of Shareholders.
The filing states the retirements were not the result of any disagreement with the company.
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.