Welcome to our dedicated page for Costco Whsl SEC filings (Ticker: COST), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Membership fees drive nearly all of Costco’s operating income, yet the company discloses those vital renewal rates deep inside its SEC paperwork. If you have ever sifted through a 300-page report hunting for Kirkland Signature margins or fuel sales figures, you know why Costco SEC filings explained simply are invaluable. Stock Titan brings every disclosure together—instantly highlighting how this warehouse giant balances thin margins with massive volume across U.S. and international clubs.
Our AI parses each Costco annual report 10-K simplified to surface membership revenue, new warehouse counts, and segment profitability. Need the latest comps? The platform links directly to the Costco quarterly earnings report 10-Q filing, while AI annotations flag changes in average ticket size and renewal trends. Material updates like holiday sales releases appear under Costco 8-K material events explained. For governance questions, explore the Costco proxy statement executive compensation to understand how bonuses align with member growth. Monitoring insider sentiment is seamless: real-time alerts cover Costco Form 4 insider transactions real-time, letting you track every Costco executive stock transactions Form 4 within minutes of hitting EDGAR.
Whether you’re comparing quarterly traffic, assessing expansion in Japan, or watching buybacks, Stock Titan’s AI-powered summaries transform dense prose into clear takeaways. You’ll get side-by-side charts, keyword search across all forms, and historical context for every Costco insider trading Form 4 transactions and Costco earnings report filing analysis. Stop scrolling through PDFs—start understanding Costco SEC documents with AI and make faster, well-informed decisions.
Costco Wholesale Corp. (COST) � Form 4 Insider Transaction
Director Susan L. Decker reported two open-market sales of Costco common stock on 18 June 2025:
- 546 shares sold at $980.000 per share
- 1 share sold at $978.395 per share
Following the sales, Decker’s direct beneficial ownership declined from 11,531.936 to 11,530.936 shares, a reduction of roughly 0.005% of her holdings. No derivative transactions were reported and no Rule 10b5-1 trading plan box was checked.
The transaction size is small relative to both Decker’s remaining position and Costco’s 443 million shares outstanding, implying no material impact on the company’s capital structure or insider sentiment indicators.
Southern Company (SO) director David J. Grain filed a Form 4 covering activity on 07/01/2025.
- Deferred compensation grant: Grain received 839.6533 Deferred Stock Units (DSUs) at a reference price of $92.30 per unit under the company’s Deferred Compensation Plan.
- The award is payable only in stock upon termination; it carries no exercise or expiration date.
- After the grant, the director’s total derivative holdings rose to 80,724.3603 DSUs.
- Table I lists a line for 500 common shares marked “D� (disposed), but the form provides no price, code, or contextual detail, limiting insight into that movement.
The filing reflects routine director compensation rather than open-market buying or selling. No material change to share count, governance, or fundamentals is indicated.
Costco Wholesale Corp. (COST) � Form 144 filing overview
An affiliate of Costco has filed a Form 144 indicating an intent to sell 546 shares of common stock through Morgan Stanley Smith Barney on or about 18 June 2025. The proposed sale represents an aggregate market value of $535,080, implying a reference price of roughly $980 per share. The shares were originally acquired on 22 October 2024 as restricted stock. Form 144 requires the filer to affirm that no undisclosed material adverse information is known and that any sales will be executed in compliance with Rule 144 volume and manner-of-sale limitations.
The filing notes 443,477,086 shares outstanding, so the disposition equals approximately 0.00012 % of shares outstanding—well below any threshold considered material to Costco’s float or daily trading volume. The filer reports no other sales within the past three months.
Given the small size relative to Costco’s market capitalization and share count, the notice is generally considered routine, low-impact disclosure. It nonetheless signals that a related insider is monetising a minor portion of previously awarded equity.
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