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).
On December 11, 2025, Anixa Biosciences and Cleveland Clinic presented final Phase 1 data for its investigational breast cancer vaccine at the 2025 San Antonio Breast Cancer Symposium. The company said the trial met all major primary endpoints, the vaccine was safe and well tolerated at the maximum tolerated dose, and 74% of participants showed protocol-defined immune responses. The filing discloses clinical results only, with no financial figures, and the data will inform planned Phase 2 study design.
Trial enrolled 35 participants across three cohorts; 74% of participants demonstrated protocol-defined immune responses
Primary adverse event was injection-site irritation; two participants in Cohort Ic had Grade 3 adverse events of greater injection-site irritation
Data will inform a planned Phase 2 study, including a potential neoadjuvant combination study with Keytruda in newly diagnosed breast cancer patients
Trial was funded by a grant from the U.S. Department of Defense and conducted with Cleveland Clinic
On December 5, 2025, Sabre Financial Borrower, LLC, an indirect subsidiary of Sabre, issued $1 billion of 11.125% senior secured notes due June 15, 2029, and lent the proceeds to Sabre GLBL under a $1 billion intercompany loan. The loan proceeds were used to refinance part of Sabre GLBL's existing exchange notes and term loan obligations, and the filing also discloses early results of exchange offers for Sabre GLBL's 2027 and 2029 notes.
$1 billion of SPV notes at 11.125%, maturing June 15, 2029, with semiannual interest starting June 15, 2026
Intercompany loan of $1 billion from Sabre Financial to Sabre GLBL, used to refinance part of Sabre GLBL's existing exchange notes and term loan
Early results: $658.9 million of existing notes expected to be accepted; early settlement expected December 8, 2025, with $244.6 million in cash and $468.6 million in new notes
Separate term loan refinancing of $375 million extends maturity to July 30, 2029
Safeguard Acquisition Corp., a blank check company, completed its initial public offering of 23,000,000 units on December 5, 2025, including 3,000,000 units from the underwriters' full over-allotment option, for gross proceeds of $230 million. The company also sold 700,000 private placement units for $7 million to its sponsor and Jefferies LLC, and placed the $230 million IPO and private placement proceeds in a trust account. The company has not yet selected a business combination target, and shareholders' redemption rights depend on the trust account balance.
23,000,000 units sold at $10.00 each, including 3,000,000 from full exercise of the over-allotment option, for $230 million gross proceeds on December 5, 2025
$230 million ($10.00 per Public Unit) placed in a trust account maintained by Continental Stock Transfer & Trust Company
Private placement of 700,000 units for $7 million: 470,000 purchased by the sponsor and 230,000 by Jefferies LLC
The company has 24 months from the IPO closing to complete a business combination and has not selected a target
On December 11, 2025, CoreWeave completed a private offering of $2,587,500,000 in 1.75% convertible senior notes due December 1, 2031, including the full exercise of the initial purchasers' $337.5 million option. The notes are convertible into cash, Class A common stock, or a mix at CoreWeave's election, with an initial conversion price of about $107.80 per share, a 25% premium to the $86.24 closing price on December 8, 2025, which means the notes could add dilution to existing shareholders if converted into shares.
Principal: $2,587,500,000, including the $337,500,000 option exercised in full; net proceeds about $2,542.2 million before offering expenses.
Initial conversion price about $107.80 per share; maximum of 30,003,356 shares could be issued on conversion at the maximum conversion rate.
Capped call transactions were funded from proceeds; remaining proceeds are for general corporate purposes.
Notes can be redeemed by CoreWeave on or after December 5, 2028 under specified stock price conditions; interest is payable June 1 and December 1, beginning June 1, 2026.
Entergy Texas, a subsidiary of Entergy, signed agreements on December 9, 2025 to build and lease the planned 754-megawatt Legend Power Station gas plant in Jefferson County, Texas. Construction costs funded under the agreements are expected not to exceed $1.450 billion, and the arrangement creates a lease obligation for the utility once the lease starts.
Construction costs expected not to exceed $1.450 billion, funded through the Participation Agreement with Bank of America, N.A. as Administrative Agent
Lease expected to commence about 26 months after December 9, 2025, for a term of up to about 58 months
Entergy Texas has an option to buy the facility at any time after lease commencement; it must elect to extend, buy, or sell at the end of the term
Agreements include a debt ratio covenant requiring consolidated debt of 65% or less of total capitalization
RH reported third quarter fiscal 2025 results for the period ended November 1, 2025, with net revenues up 9% to $883.8 million and net income up 9% to $36.3 million, or $1.83 per diluted share versus $1.66 a year earlier. Adjusted operating margin of 11.6% fell below the 12.5% midpoint of the company's guidance, which management attributed to higher tariff expense and Paris opening costs, and the company updated its outlook for the fourth quarter and full year 2025.
Q3 net revenues $883.8 million, up from $811.7 million; net income $36.3 million, up from $33.2 million
Diluted net income per share $1.83 versus $1.66 in the prior-year quarter; adjusted operating margin 11.6% versus 12.5% guidance midpoint
Free cash flow of $83 million in Q3 and $198 million year to date; full-year 2025 free cash flow outlook $250 million to $300 million
Q4 2025 outlook: revenue growth of 7% to 8% and adjusted operating margin of 12.5% to 13.5%; net debt was $2.427 billion at quarter end
Affiliated Managers Group completed the sale of $425 million of 5.500% senior notes maturing February 15, 2036. The company plans to use the net proceeds to redeem in full its 5.15% Convertible Trust Preferred Securities due 2037, with any remainder for general corporate purposes. The filing is a debt financing that refinances existing securities and does not report new earnings or guidance.
Issued $425,000,000 aggregate principal of 5.500% Senior Notes due February 15, 2036
Interest payable February 15 and August 15 each year, beginning August 15, 2026
Proceeds intended to redeem in full the 5.15% Convertible Trust Preferred Securities due 2037 of AMG Capital Trust II
Underwriting agreement dated December 8, 2025 with BofA Securities, Citigroup Global Markets and Wells Fargo Securities as representatives
Costco reported first-quarter fiscal 2026 results for the 12 weeks ended November 23, 2025. Net sales rose 8.2% to $65.98 billion, and net income rose to $2.00 billion, or $4.50 per diluted share, from $4.04 a year earlier. Both headline sales and profit increased from the prior year, and the filing contains no updated guidance.
Net sales rose 8.2% to $65.98 billion from $60.99 billion a year earlier.
Net income was $2,001 million, or $4.50 per diluted share, versus $1,798 million, or $4.04, last year.
A tax benefit related to stock-based compensation was $72 million, or $0.16 per diluted share, versus $100 million, or $0.22, last year.
Total company comparable sales rose 6.4%; U.S. comparable sales rose 5.9%.
Badger Meter announced several executive appointments effective January 1, 2026, including Robert Wrocklage moving from Chief Financial Officer to Executive Vice President – North America Municipal Utility and Daniel Weltzien becoming Vice President – Chief Financial Officer and Treasurer. The company also amended and restated key executive employment agreements, including the CEO's, which set change-in-control severance terms. The filing reports no financial results, and the changes are mainly leadership and compensation updates.
Robert Wrocklage, Senior Vice President – CFO since 2019, becomes Executive Vice President – North America Municipal Utility on January 1, 2026, with base salary rising to $550,000
Daniel Weltzien, currently Vice President – Controller and Treasurer, becomes Vice President – CFO and Treasurer on January 1, 2026, with base salary rising to $390,000
Amended executive employment agreements provide severance of three times annual cash compensation for CEO Kenneth Bockhorst and two times for other executive officers after a qualifying termination following a change in control
NiSource entered into a Seventh Amended and Restated Revolving Credit Agreement on December 11, 2025, replacing its existing facility. The filing says the facility increased by $650 million to $2.5 billion and its termination date moved from February 18, 2027 to December 11, 2030, giving the company more borrowing capacity for a longer period.
Facility size increased by $650 million to $2.5 billion
Termination date extended from February 18, 2027 to December 11, 2030
Standby letter of credit sublimit raised by $25 million to $175 million
Agreement removed provisions tied to environmental, social and governance targets that could have adjusted the Applicable Rate
T-Mobile's Board authorized a new shareholder return program of up to $14.6 billion running through December 31, 2026, covering share repurchases and cash dividends. The program is in addition to the $14.0 billion program that runs through December 31, 2025, and any unused amount from that program will roll into the new one.
Program size: up to $14.6 billion, running through December 31, 2026
Repurchases will be reduced by dividends declared and paid, including the Q1 2026 dividend of $1.02 per share payable March 12, 2026
Unused amount from the $14.0 billion 2025 program will be added to the 2026 program
Funding expected from cash on hand and proceeds of debt issuances or other borrowings
Helmerich & Payne CEO John Lindsay will retire as CEO and director after the March 4, 2026 Annual Meeting, and the Board has appointed President Raymond John "Trey" Adams III to succeed him. The filing says the retirement is not the result of any disagreement with the company on operations, policies or practices, and Lindsay will serve as a senior advisor through December 31, 2026 to support the transition.
Lindsay retires as CEO and director after the Annual Meeting on March 4, 2026.
Adams, 40, has been President since October 2025 and has worked at the company since 2008; the Board has nominated him for election to the Board at the Annual Meeting.
Lindsay will receive his base salary, a short-term cash incentive of 50% of his fiscal 2025 award for the first five months of fiscal 2026, and 77,818 restricted shares with a 1-year vesting period.
Broadcom reported fourth-quarter fiscal 2025 revenue of $18.0 billion, up 28% from a year earlier, and GAAP net income of $8.5 billion, or $1.74 per diluted share. The company guided first-quarter fiscal 2026 revenue to about $19.1 billion and raised its quarterly dividend 10% to $0.65 per share.
Q4 fiscal 2025 net revenue was $18,015 million, up 28%; GAAP diluted EPS was $1.74 versus $0.90 a year earlier.
Free cash flow was $7,466 million for the quarter; fiscal 2025 free cash flow was $26,914 million.
First-quarter fiscal 2026 revenue guidance is approximately $19.1 billion, an increase of 28% from the prior year period.
Quarterly dividend of $0.65 per share is payable December 31, 2025, to holders of record on December 22, 2025.
Quanex reported fourth-quarter and fiscal 2025 results for the period ended October 31, 2025. Fourth-quarter net sales were $489.8 million, down 0.5% from a year earlier, while net income swung to $19.6 million from a loss of $13.9 million, but the full year showed a $250.8 million net loss driven by a $302.3 million goodwill impairment. The company declined to issue formal 2026 guidance, saying fiscal 2026 could be flat with fiscal 2025 on revenue and EBITDA and that it will revisit guidance with its first-quarter results.
Q4 net sales $489.8 million vs $492.2 million a year earlier; Q4 net income $19.6 million, or $0.43 diluted EPS, vs a $13.9 million loss
Full-year net loss of $250.8 million, including a $302.3 million goodwill impairment charge; full-year net sales rose 43.8% to $1.84 billion, mainly from the Tyman acquisition
Q4 adjusted diluted EPS $0.83 vs $0.82; full-year free cash flow $102.3 million and $75 million of bank debt repaid in 2025
No official 2026 guidance; management says fiscal 2026 could be flat with fiscal 2025 on revenue and EBITDA, with the first half likely more challenged
BNY's Board elected Charles F. Lowrey, former Prudential Financial CEO, as an independent director effective February 15, 2026, expanding the Board to 12 directors. The Human Resources and Compensation Committee also approved an equity award to Chairman and CEO Robin Vince, with a grant date value of $25.0 million in restricted stock units plus 869,263 stock options, which vest or become exercisable over five and six years.
Charles F. Lowrey elected as an independent director, effective February 15, 2026; Board will have 12 directors
Lowrey has been Executive Chairman of Prudential Financial since April 2025 and was its CEO from December 2018 until March 2025
On December 8, 2025, the HRCC unanimously approved an award to CEO Robin Vince of RSUs valued at $25.0 million at grant plus 869,263 stock options
RSUs and options vest or become exercisable in two equal installments on the fifth and sixth anniversaries of the grant date
Kinsale Capital Group announced that its Board authorized a new share repurchase program of up to $250 million of common stock, following completion of a previously announced $100 million program. The company also amended its note purchase agreement and credit agreement to permit restricted payments, such as share repurchases, as long as no event of default has occurred or would result, which gives the company more flexibility to return capital to stockholders.
Board authorized repurchases of up to $250 million of outstanding common stock, announced December 11, 2025
New authorization follows completion of the previously announced $100 million repurchase program
Third Amendment to the Note Purchase Agreement with PGIM, Inc. and Amendment No. 3 to the Credit Agreement with JPMorgan Chase Bank, N.A. revise limits on restricted payments, which previously were capped at the greater of $300 million or 6
Repurchases may be made in the open market, in private transactions, or through accelerated share repurchase agreements, and the program may be modified, suspended or terminated at any time
Sensata Technologies agreed on December 8, 2025 to a separation agreement with George Verras, its Executive Vice President and Chief Technology Officer, who will remain in the role through December 31, 2025. The filing says the departure is not due to any disagreement over the company's operations, policies or practices, and it sets out severance payments that Verras will receive.
Cash severance of $600,000, equal to 12 months of base salary, paid in installments starting January 1, 2026
Payment of 100% of Verras' average bonus for 2024 and 2025, paid during the 12-month severance period
Lump-sum 2025 annual bonus under the Executive Bonus Program, payable no later than February 28, 2026
lululemon said CEO Calvin McDonald will step down effective January 31, 2026, with CFO Meghan Frank and André Maestrini serving as interim co-CEOs while the board searches for a permanent CEO. In the same day's filing, third-quarter net revenue rose 7% to $2.6 billion, but income from operations fell 11% and diluted EPS fell to $2.59 from $2.87. The board also approved a $1.0 billion increase to the stock repurchase program.
Calvin McDonald steps down as CEO and director effective January 31, 2026, and serves as senior advisor through March 31, 2026
Meghan Frank and André Maestrini named interim co-CEOs effective January 31, 2026; Marti Morfitt appointed executive chair effective immediately
Third-quarter net revenue rose 7% to $2.6 billion; diluted EPS was $2.59 versus $2.87 a year earlier
Board approved a $1.0 billion repurchase increase on December 3, 2025; about $1.6 billion remained authorized as of December 11, 2025
Hilton's indirect subsidiary Hilton Domestic Operating Company issued $1 billion of 5.500% Senior Notes due 2034 on December 10, 2025, and used the proceeds to redeem in full its $500 million 5.750% Senior Notes due 2028. The refinancing extends the maturity of part of the company's debt, and the remainder of the proceeds will go to general corporate purposes.
$1 billion of 5.500% Senior Notes due March 31, 2034, issued at 100% of par on December 10, 2025
$500 million 5.750% Senior Notes due 2028 redeemed in full on December 11, 2025, at 100.00% of principal plus accrued interest
Notes are guaranteed by Hilton Worldwide Holdings Inc. and Hilton Worldwide Parent LLC on a senior unsecured basis
Ciena reported fiscal fourth quarter 2025 revenue of $1.35 billion, up 20% from a year earlier, and adjusted diluted EPS of $0.91 versus $0.54. GAAP diluted EPS fell to $0.13 from $0.25, reflecting $106.9 million in significant asset impairments and restructuring costs in the quarter. The company guided fiscal 2026 revenue to $5.7 billion to $6.1 billion, and fiscal first quarter 2026 revenue to $1.35 billion to $1.43 billion.
Q4 fiscal 2025 revenue was $1.35 billion, compared with $1.12 billion a year earlier.
GAAP diluted EPS was $0.13 versus $0.25; adjusted (non-GAAP) diluted EPS was $0.91 versus $0.54.
Significant asset impairments and restructuring costs were $106.9 million in the quarter, versus $2.6 million a year earlier.
Fiscal 2026 revenue guidance is $5.7 billion to $6.1 billion; fiscal Q1 2026 revenue guidance is $1.35 billion to $1.43 billion.
Altria said CEO William Gifford will retire as CEO and director effective May 14, 2026, at the close of its 2026 Annual Meeting, and the board elected CFO Salvatore Mancuso as his successor as CEO. Heather Newman, currently Chief Strategy & Growth Officer, was elected CFO on the same effective date. The changes put a new CEO and CFO in place for shareholders, though the filing does not disclose Mancuso's compensation, which the board will set later.
Billy Gifford retires as CEO and director effective May 14, 2026; he will consult for Altria through at least the end of 2026
Salvatore Mancuso, 60, currently Executive Vice President and CFO, elected CEO effective May 14, 2026
Heather Newman, 48, elected CFO effective May 14, 2026; received a special RSU grant valued at $1,500,000 vesting November 20, 2030
Enova International signed a merger agreement on December 10, 2025, to acquire Grasshopper Bancorp, the parent of Grasshopper Bank N.A., in a deal the press release values at about $369 million. The deal is paid in a mix of cash and Enova stock and needs Grasshopper stockholder approval and approvals from the OCC and the Federal Reserve, with closing expected in the second half of 2026.
Grasshopper holders can elect $9.69 in cash or 0.07637 of an Enova share for each Grasshopper share; cash is 50% of total merger consideration, capped at about $350 million in aggregate
Enova would pay a $5,000,000 termination fee under certain circumstances; either party can terminate after day 360 unless extended to day 450 for a $5,000,000 payment
Closing requires Grasshopper stockholder approval and approvals from the Board of Governors of the Federal Reserve System and the Office of the Comptroller of the Currency, and expected in the second half of 2026
Steve Cunningham will become Enova CEO effective January 1, 2026, and will also be CEO of the surviving bank
Matador's subsidiary MRC Energy signed a seventh amendment to its secured revolving credit facility on December 9, 2025. The amendment reaffirmed the $3.25 billion borrowing base and kept the elected commitment at $2.25 billion, and it removed a 0.10% credit spread adjustment that had been included in the interest rate calculation. Separately, lenders to the San Mateo midstream joint venture raised its commitments by $250 million, which Matador says gives that venture more financial flexibility.
Borrowing base reaffirmed at $3.25 billion in the regularly scheduled November 1 redetermination; elected commitment held at $2.25 billion
0.10% per annum credit spread adjustment removed from the SOFR-based interest calculation
Matador paid down $311 million under the RBL in the first nine months of 2025, leaving a $285 million balance as of September 30, 2025
San Mateo revolving commitments increased from $850 million to $1.10 billion; Matador owns 51% of San Mateo
Berkshire Hathaway said CFO Marc Hamburg will resign as Chief Financial Officer on June 1, 2026 and retire on June 1, 2027, and that Charles C. Chang, currently CFO of Berkshire Hathaway Energy, will succeed him on June 1, 2026. The December 8, 2025 press release also named new leaders at GEICO, the consumer products and retailing businesses and general counsel, and said Gregory E. Abel will become President and CEO of Berkshire on January 1, 2026, which changes top leadership across several units.
Marc D. Hamburg resigns as CFO June 1, 2026 and retires June 1, 2027, after 40 years of service.
Charles C. Chang, 57, succeeds Hamburg as SVP and CFO on June 1, 2026; he has been BHE's CFO since October 1, 2024.
Chang's compensation arrangements have not been finalized and will be disclosed in an amended 8-K.
Gregory E. Abel becomes President and CEO on January 1, 2026; Nancy L. Pierce named GEICO CEO effective immediately after Todd A. Combs resigned to join JPMorgan Chase.
Certara appointed Jon Resnick, president of IQVIA's U.S. and Canada regional business, as chief executive officer effective January 1, 2026, succeeding William Feehery, who departs as CEO and director on December 31, 2025. Resnick also joins the board, and the company reaffirmed its 2025 full-year financial outlook, which means the leadership change does not come with a revised forecast.
Resnick receives an initial annual base salary of $750,000 and a target bonus of 100% of salary.
A make-whole restricted stock unit grant with a target value of $6,500,000 vests over the first two yearly anniversaries of the start date.
Feehery will receive a consulting fee of $20,000 per month and pro-rata vesting of equity awards granted in May 2025; either party can end the consulting arrangement with five days' notice.
The company reaffirmed its 2025 full-year financial outlook, as previously disclosed on November 6, 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.