In the filings: ExxonMobil and American Express publish investor updates; Costco announces a leadership change
The 8-Ks from big US companies that said something, from results to deals to executive exits, quoted straight from EDGAR.
The short version
- 77 8-Ks from $10B+ companies, 15–19 Oct.
- XOM: published a Regulation FD disclosure.
- COST: reported a director or officer change.
- MSTR: published a Regulation FD disclosure and disclosed another material event.
Between 15 October and 19 October, companies worth $10 billion or more filed 77 current reports (8-Ks) that we pulled from SEC EDGAR. An 8-K is how a public company tells investors that something material has happened, within four business days. Most are routine. These are the ones with real content, quoted directly from the filings.
ExxonMobil (XOM)
In an 8-K filed Friday, 16 October, ExxonMobil published a Regulation FD disclosure. The stock closed Monday at $178.28 (-0.39%). Read the filing.
“ExxonMobil Holdings Corporation 3Q26 Market and Planned Impacts to Earnings.”Costco (COST)
In an 8-K filed Friday, 16 October, Costco reported a director or officer change. The stock closed Monday at $995.53 (+0.65%). Read the filing.
“On October 13, 2026, the Compensation Committee of the Board of Directors approved the fiscal 2027 criteria for bonuses to executive officers, with the Nominating and Governance Committee of the Board also approving the environmental and social performance criteria.”Strategy (MSTR)
In an 8-K filed Friday, 16 October, Strategy published a Regulation FD disclosure and disclosed another material event. The stock closed Monday at $136.02 (-0.59%). Read the filing.
“The Company also maintains a dashboard on its website (www.strategy.com) as a disclosure channel for providing broad, non-exclusionary distribution of information regarding the Company to the public, including information regarding market prices of its outstanding securities, bitcoin purchases and holdings, certain KPI metrics and other supplemental information, and as one means of disclosing non-public information in compliance with its disclosure obligations under Regulation FD.”Strategy (MSTR)
In an 8-K filed Monday, 19 October, Strategy published a Regulation FD disclosure and disclosed another material event. The stock closed Monday at $136.02 (-0.59%). Read the filing.
“Date of Report (Date of earliest event reported): October 19, 2026”Supermicro (SMCI)
In an 8-K filed Thursday, 15 October, Supermicro reported a director or officer change. The stock closed Monday at $32.10 (+1.49%). Read the filing.
“On October 14, 2026, the Board of Directors of Super Micro Computer, Inc.”GameStop (GME)
In an 8-K filed Monday, 19 October, GameStop disclosed another material event. The stock closed Monday at $26.44 (-1.38%). Read the filing.
“At 5:00 p.m., New York City time, on October 30, 2026, the warrants to purchase shares of Class A common stock, par value $0.001 per share (“Common Stock”), of GameStop Corp.”Alcoa (AA)
In an 8-K filed Thursday, 15 October, Alcoa reported results of operations. The stock closed Monday at $41.67 (+0.53%). Read the filing.
“• Net income attributable to Alcoa Corporation increased to $483 million, or $1.81 per share”AbbVie (ABBV)
In an 8-K filed Thursday, 15 October, AbbVie reported a director or officer change. Read the filing.
“of Directors; Appointment of Certain Officers; Compensatory Arrangement of Certain Officers”Caterpillar (CAT)
In an 8-K filed Thursday, 15 October, Caterpillar reported a director or officer change and disclosed another material event. Read the filing.
“of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.”American Express (AXP)
In an 8-K filed Thursday, 15 October, American Express published a Regulation FD disclosure. Read the filing.
“American Express Company (the “Company”) is hereby furnishing below delinquency and write-off statistics for its U.S.”Figures: SEC EDGAR 8-K filings (quotes are verbatim), Nasdaq market values, Yahoo Finance prices.
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