619 material Form 8-K filings that 507 companies we cover made with the SEC in December 2025, 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).
Halozyme Therapeutics elected James Lang to its Board of Directors on December 4, 2025, with a term ending at the 2027 annual meeting. He was not initially assigned to any board committee, and the filing states there are no related person transactions or arrangements tied to his election.
James Lang elected to the Board of Directors on December 4, 2025
Term ends at the Company's annual meeting of stockholders in 2027
Not initially assigned to any Board committee
Compensated under the standard non-employee director program, described in the 2025 proxy statement
Asbury Automotive Group said David Hult will step down as President and CEO and become Executive Chairman after its 2026 Annual Meeting of Stockholders, expected in May 2026. Chief Operating Officer Daniel Clara will become President and CEO on that date, and the company expects to nominate him to the Board. The filing covers leadership succession and Hult's amended employment terms, and it does not include financial results.
Transition takes effect after the 2026 Annual Meeting, expected in May 2026; Hult notified the company of his decision on December 4, 2025.
Hult's base salary is $750,000 through December 31, 2026, then $525,000 for 2027 and $300,000 from January 1, 2028.
If Hult is terminated without cause before December 31, 2027, he would receive 200% of base salary, 100% of target bonus, and 100% vesting of equity awards.
Clara's compensation arrangement as CEO has not been determined; the company will file an amendment when it is set.
Graphic Packaging CEO Michael P. Doss will leave his roles on December 31, 2025, after serving as CEO since 2016. Robbert Rietbroek, former CEO of Primo Brands Corporation, becomes President and CEO and a board member on January 1, 2026, and the filing sets out his pay and severance terms.
Doss's employment and board service end at the end of the day on December 31, 2025; the filing says he is expected to receive separation benefits under his 2015 employment agreement.
Rietbroek, 52, was CEO of Primo Brands Corporation from November 2024 to November 2025.
Rietbroek's employment agreement provides a base salary of $1,350,000, a target long-term incentive of not less than 560% of base salary, and a one-time $4,000,000 restricted stock unit grant.
In a separate announcement the company updated its full-year 2025 guidance; the figures are not included in this filing.
OGE Energy disclosed that Donnie O. Jones, Vice President - Utility Operations at Oklahoma Gas and Electric Company (OG&E), notified the company on December 3, 2025 that he plans to retire at year-end 2026. The filing gives no successor name, financial figures, or other details, so the change's effect on operations is not stated.
Donnie O. Jones, Vice President - Utility Operations of OG&E, plans to retire at year-end 2026
Notice to OGE Energy was given on December 3, 2025
OG&E serves approximately 910,000 customers in Oklahoma and western Arkansas
DTE Energy said President and Chief Operating Officer Mark W. Stiers of DTE Vantage and Energy Trading will retire effective January 12, 2026, and stay on in an advisory role until no later than March 31, 2026. The board also adopted amended bylaws effective December 3, 2025, setting rules for shareholder proposals and board nominations and clarifying that the annual meeting may be held by remote communication.
Mark W. Stiers notified the company on December 2, 2025 of his retirement, effective January 12, 2026
Stiers will remain in an advisory role with the company no later than March 31, 2026
Bylaws amendments adopted December 3, 2025 set requirements for shareholders bringing business and board nominations to the annual meeting
The amended bylaws also clarify that the annual shareholder meeting may be held remotely; the filing describes other minor edits
Gaming and Leisure Properties (GLPI) appointed Michael Borofsky to its Board of Directors as a new independent director, effective immediately and subject to customary regulatory approvals. The appointment expands the Board to eight members, seven of whom are independent, and the company has not yet set his committee assignments.
Board appointment made December 4, 2025, announced in a press release dated December 8, 2025
Board expands to eight directors, seven of whom are independent under Nasdaq listing standards
Committee assignments not yet determined as of the filing date
Borofsky will receive a pro-rated share of the cash portion of the non-employee director compensation program
Masco announced that Imran Ahmad, Group President of Decorative Architectural Products, will leave the company on December 31, 2025, when his position is eliminated. CEO Jon Nudi will take over oversight of the Decorative Architectural Products segment.
Imran Ahmad's departure is effective December 31, 2025, when his position is eliminated
Ahmad leads the Decorative Architectural Products segment, which passes to CEO Jon Nudi
The filing was announced December 8, 2025 and does not describe financial impact or a replacement
WillScot Holdings Corporation appointed Carisa Bianchi as Senior Vice President and Chief Accounting Officer, effective January 12, 2026. Until she starts, Mathew T. Jacobsen will be the designated principal accounting officer for the upcoming 2025 Form 10-K, which covers a period before her start date.
Carisa Bianchi, age 49, is a Certified Public Accountant and previously served as Vice President, Global Corporate Controller at Insight Enterprises, Inc.
Bianchi's offer letter includes a one-time restricted stock unit award with a target value of $150,000, to be issued in 2026, and a one-time cash sign-on award of $50,000.
The $50,000 sign-on award must be repaid if her employment ends within one year due to voluntary separation or termination for gross misconduct.
ATI Inc. appointed J. Robert Foster as Senior Vice President, Finance and Chief Financial Officer, effective January 1, 2026, succeeding Donald Newman, who retires March 1, 2026. The filing also discloses that Chief Human Resources Officer Tina K. Busch resigned on December 5, 2025, and that the company reiterated its fourth quarter and full year 2025 guidance.
Foster's base salary is $625,000, with a 2026 annual incentive target of 80% of salary and a 2026 long-term incentive grant value of 200% of salary.
Newman remains CFO through December 31, 2025, then serves as Strategic Advisor to the CEO beginning January 1, 2026.
Busch resigned as Chief Human Resources Officer on December 5, 2025; the company will search for a successor.
Busch's consulting agreement runs through January 2027, with non-compete and non-solicitation restrictions through January 2028.
Independence Realty Trust's General Counsel and Secretary, Michele Weisbaum, informed the company on December 5, 2025 that she will retire on or about March 31, 2026. The filing says she plans an orderly transition of her duties and that the decision is not due to any disagreement with the company on its operations, policies or practices.
Michele Weisbaum, EVP, General Counsel and Secretary, will retire effective on or about March 31, 2026
She notified the company on December 5, 2025 and intends an orderly transition of duties through her retirement date
The filing states the retirement is not the result of any disagreement with the company
The filing also furnishes a slide presentation (Exhibit 99.1) for investor use beginning December 8, 2025
Ryan Specialty said Robert Le Blanc, CEO of Onex Corporation, will retire from its Board of Directors effective February 11, 2026, and also end his service on the Compensation and Governance Committee on that date. The company said the retirement is by mutual agreement following Onex's sale of its remaining shares of Ryan Specialty and is not the result of any disagreement. The filing contains no financial results or guidance, so the change is governance-related with no stated financial effect.
Le Blanc agreed to retire from the Board on December 5, 2025, effective February 11, 2026.
His Compensation and Governance Committee service also ends February 11, 2026.
Le Blanc, Onex CEO, has served on the Board since 2018 as Onex's nominee.
Onex sold its remaining shares of Ryan Specialty before the retirement was agreed.
Ingevity announced that CFO Mary Dean Hall will leave her role effective May 1, 2026, and will advise the company for one year afterward. Phillip J. Platt, the current senior vice president of finance and chief accounting officer, will succeed her as CFO on the same date. The company also said Performance Chemicals president Richard White will depart on May 1, 2026, after moving to a special projects role on January 1, 2026. The filing contains no financial results, so the changes matter to shareholders mainly as a change in the finance leadership.
Mary Dean Hall's CFO role ends May 1, 2026; she will advise the company in an advisory capacity for one year.
Phillip J. Platt, age 44, who joined in 2015, is named SVP and CFO effective May 1, 2026. He is a certified public accountant.
Richard White, SVP and president of Performance Chemicals, moves to a special projects role January 1, 2026 and departs May 1, 2026.
Reid Clontz Jr. was appointed SVP, Operations, effective December 8, 2025.
WESCO International elected Michael L. Carter and David C. Wajsgras to its Board of Directors, effective January 1, 2026. Directors Bobby Griffin and Steve Raymund will retire when their terms expire at the 2026 annual meeting on May 28, 2026, and the company says neither retirement reflects a disagreement with the company.
Michael L. Carter is Executive Vice President and Chief Partner Officer of Truist Financial Corporation; the board deems him independent under NYSE standards.
David C. Wajsgras is the former CEO of Intelsat Holdings S.A. and a director of Parsons Corporation and Martin Marietta Materials, Inc.
Bobby Griffin and Steve Raymund will retire at the 2026 annual meeting on May 28, 2026, with Raymund notifying the company on December 5, 2025.
The filing does not report financial results, guidance, or compensation figures for the new directors.
JPMorgan Chase & Co. disclosed that director Todd A. Combs notified the company on December 7, 2025, of his intention to resign from the Board of Directors, effective the same day. The company said the resignation is not the result of any disagreement with the company, and the filing contains no financial results or guidance.
Todd A. Combs resigned from the Board of Directors, effective December 7, 2025
Combs notified the company of his intention to resign on December 7, 2025
The filing states the resignation is not due to any disagreement with the company
Filing was signed by Corporate Secretary Reid R. Broda and dated December 8, 2025
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.