COSTS&P 500

Costco SEC filings, summarized

We read every Costco 8-K filing and insider trade the night it hits SEC EDGAR, and turn it into a two-minute plain-English summary.

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Recent filings

8-KOctober 16, 2026

Costco Sets Fiscal 2027 Executive Bonus Targets

On October 13, 2026, Costco’s Compensation Committee approved fiscal 2027 bonus criteria, with the Nominating and Governance Committee approving…

8-KOctober 14, 2026

Costco Declares Quarterly Dividend of $1.47 Per Share

Costco’s board declared a quarterly cash dividend of $1.47 per share on October 14, 2026. The dividend will be paid on November 13, 2026, to shareholders of…

Form 4 · Insider TradeOctober 14, 2026

Costco EVP William Richard Wilcox sells $1.05M in stock

Costco Executive Vice President William Richard Wilcox sold 1,100 shares of common stock on Oct. 13 at $958.21 per share, for approximately $1,054,026. He…

Form 4 · Insider TradeSeptember 30, 2026

Costco EVP Claudine Adamo sells 2,200 shares for about $2.0 million

Costco Executive Vice President Claudine Adamo sold 2,200 shares of common stock on Sept. 29, 2026, at $915.93 per share for approximately $2,015,046. She…

8-KSeptember 24, 2026

Costco reports 11.2% fourth-quarter sales growth and $6.75 EPS

Costco’s fourth-quarter net sales rose 11.2% to $93.9 billion for the 16 weeks ended August 30, 2026, while comparable sales increased 9.4% and digitally…

8-KMarch 5, 2026

8‑K filed 3/5/2026: Costco furnished a press release (Ex.99.1), second quarter FY2026 supplemental info…

8‑K filed 3/5/2026: Costco furnished a press release (Ex.99.1), second quarter FY2026 supplemental info (Ex.99.2) and an Inline XBRL cover page (Ex.104).…

8-KMarch 5, 2026

Mar 5, 2026: Costco ($COST) issued Q2 fiscal 2026 operating results (12 weeks) and first 24 weeks YTD…

Mar 5, 2026: Costco ($COST) issued Q2 fiscal 2026 operating results (12 weeks) and first 24 weeks YTD results ended Feb 15, 2026. Sales update also provided…

8-KJanuary 21, 2026

Costco ($COST) filed Form 8‑K (Item 9.01) on Jan 21, 2026: Exhibits — 99.1 Press Release dated Jan 15,…

Costco ($COST) filed Form 8‑K (Item 9.01) on Jan 21, 2026: Exhibits — 99.1 Press Release dated Jan 15, 2026; 104 Cover Page Inline XBRL. Signed by John…

8-KJanuary 21, 2026

Board declared quarterly cash dividend of $1.30/share (declared Jan 15, 2026).

Board declared quarterly cash dividend of $1.30/share (declared Jan 15, 2026). Payable Feb 13, 2026 to shareholders of record at close of business on Jan…

8-KJanuary 21, 2026

Jan 15, 2026 Annual Meeting: 443,957,682 shares entitled, 352,303,581 voted; 65,311,704 broker non‑votes.

Jan 15, 2026 Annual Meeting: 443,957,682 shares entitled, 352,303,581 voted; 65,311,704 broker non‑votes. All board nominees were elected to serve until the…