COST at a glance
Costco (COST, SEC CIK 909832) filed its latest 10-K annual report on October 8, 2025, a 10-Q quarterly report on June 3, 2026, an 8-K current report on September 24, 2026 and Form 4 insider filings as recently as September 30, 2026. SignalX summarizes each filing with AI and tracks the company's insider trades and institutional holders.
- For the fiscal year ended August 31, 2025 (FY2025), Costco (COST) reported revenue of $275.2 billion (up 8.2% from FY2024) and net income of $8.1 billion. Diluted EPS was $18.21.
- As of June 30, 2026, 70 institutional investment managers tracked by SignalX reported holding Costco (COST) shares worth $154.1 billion in 13F-HR filings.
- The most recent insider open-market sale reported on Form 4 was by Frates Caton on September 29, 2026 of 801 shares at $915.93 per share.
- In the last 90 days, COST insiders reported 0 open-market purchases ($0) and 2 open-market sales ($2.7M) on Form 4, a net sale of $2.7M.
Source: SEC EDGAR (XBRL financial data, 13F-HR and Form 4 filings).
- Revenue · FY2025
- $275.2B
- +8.2% vs prior year
- Insiders · 90 days
- 0 buys · 2 sells
- Net −$2.7M
- 13F holders
- 70 funds
- $154.1B · +1 vs prior quarter
- Latest 8-K
- Sep 24, 2026
- Item 2.02
AI 10-K Annual Report Analysis
Latest 10-K, fiscal year ended Aug 31, 2025
Risk Factors
- No geopolitical or macroeconomic threat with concrete exposure detail disclosed
- No operational or supply chain vulnerability specific to Costco disclosed
- No competitive or market disruption risk naming a competitor or technology disclosed
Business Overview
- Core business model: Wholesale membership warehouse club retailing focused on bulk sales and low prices
- Introduced and filed new Insider Trading Policy for directors, officers, and employees enhancing compliance controls
- No new product lines or business segments disclosed in this filing
- Auditor remains KPMG LLP, Seattle, WA, with Auditor Firm ID 185, indicating consistency in external audit
- Reference incorporation by proxy statements for executive compensation, ownership, and related-party disclosures
AI summary of the COST 10-K filed . Generated from the filing text; verify against the original.View on SEC EDGARHow to read a 10-K
AI 10-Q Quarterly Report Analysis
Latest 10-Q, quarter ended May 10, 2026
Management Discussion & Analysis
- Headwinds cited: inflation, exchange rates, competition, tariffs, global conflicts, wages, health-care costs, and consumer spending risks
Risk Factors
- No material changes to risk factors from the fiscal 2025 Form 10-K
- Carried-forward regulatory, legal, operational, competitive, and financial risks unchanged from the 10-K
- Share-repurchase authorization $4,000, expiring January 2027
AI summary of the COST 10-Q filed . Generated from the filing text; verify against the original.View on SEC EDGAR10-K vs 10-Q vs 8-K
AI 8-K Current Report Analysis
The most recent material events, by 8-K item
Item 2.02: Results of Operations and Financial Condition
- Fiscal 2026 results cover the 16-week fourth quarter and 52-week fiscal year ended August 30, 2026
- Press release issued September 24, 2026, with detailed results in Exhibit 99.1
Item EX-99.1: Item EX-99.1
- Fiscal 2026 net sales rose 10.1% to $297.2B; net income increased 13.9% to $9.226B
- Fourth-quarter diluted EPS reached $6.75, including a $0.15 non-recurring IEEPA tariff-refund benefit
Item 8.01: Other Events
- Quarterly cash dividend of $1.47 per share declared
- Payable August 7, 2026, to shareholders of record July 24, 2026
Item EX-99.1: Item EX-99.1
- June net sales $29.24B, up 10.6% year over year; first 44 weeks $250.43B, up 10.1%
- Total-company comparable sales rose 8.8% for five weeks and 8.3% for 44 weeks
Item 2.02: Results of Operations and Financial Condition
- Costco reported fiscal 2026 third-quarter and year-to-date results for periods ended May 10, 2026
- Third quarter covered 12 weeks; year-to-date results covered the first 36 weeks
AI summaries of COST 8-K current reports filed with the SEC. What 8-K item codes mean
SignalX for COST
Don't miss the next COST filing
- Alerts as it files. A push when COST files an 8-K or an insider trades.
- Fund moves. Which tracked funds opened, added or cut COST, by share count.
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Recent Insider Transactions (Form 4)
Latest reported trades by officers, directors and 10% owners
| Insider | Type | Date | Shares | Price |
|---|---|---|---|---|
| Frates Caton | Sell | Sep 29, 2026 | 800.638 | $915.93 |
| Adamo Claudine | Sell | Sep 29, 2026 | 2,200 | $915.93 |
| Riel Pierre | A | Sep 10, 2026 | 4,552 | - |
| Jones Teresa A. | F | Sep 10, 2026 | 1,458.535 | $902.38 |
| Rubanenko Yoram | A | Sep 10, 2026 | 4,129 | - |
| Klauer James C | A | Sep 10, 2026 | 4,129 | - |
| Jones Teresa A. | A | Sep 10, 2026 | 4,129 | - |
| Rubanenko Yoram | F | Sep 10, 2026 | 1,695.952 | $902.38 |
Financial SummaryXBRL
| Metric | FY2023 | FY2024 | FY2025 |
|---|---|---|---|
| Profitability | |||
| Revenue | - | $254.5B | $275.2B |
| Operating Income | - | $9.3B | $10.4B |
| Net Income | $6.3B | $7.4B | $8.1B |
| Op. Margin | - | 3.6% | 3.8% |
| Net Margin | - | 2.9% | 2.9% |
| Balance Sheet | |||
| Total Assets | $69.0B | $69.8B | $77.1B |
| Equity | - | $23.6B | $29.2B |
| ROE | - | 31.2% | 27.8% |
| Per Share | |||
| EPS | $14.16 | $16.56 | $18.21 |
| Cash Flow | |||
| Operating CF | - | $11.3B | $13.3B |
| CapEx | $4.3B | $4.7B | $5.5B |
Source: XBRL data in Costco (COST)'s 10-K filings on SEC EDGAR, in USD. Compare across companies →
13F Fund Holdings: Quarterly Trend
Latest: Q2 2026Aggregate COST share value held by 13F filers tracked by SignalX, by quarter.
Quarterly totals table
| Quarter | Funds | Total value |
|---|---|---|
| Q2 2026 | 70 | $154.12B |
| Q1 2026 | 69 | $165.31B |
| Q4 2025 | 68 | $146.39B |
| Q3 2025 | 70 | $152.35B |
| Q2 2025 | 69 | $160.71B |
| Q1 2025 | 67 | $117.55B |
| Q4 2024 | 62 | $92.78B |
| Q3 2024 | 59 | $42.69B |
- Invesco Ltd+359.9K (+3%)
- Morgan Stanley+321.7K (+3%)
- Citigroup+268.0K (+44%)
- Millennium Management+244.2K (+179%)
- State Street Corp+232.7K (+1%)
- BlackRock−744.2K (-2%)
- FMR LLC (Fidelity)−555.0K (-8%)
- T. Rowe Price Group−512.5K (-20%)
- Vanguard Portfolio Management LLC−303.1K (-3%)
- Franklin Resources−275.8K (-19%)
Source: 13F-HR filings on SEC EDGAR (aggregated from 534 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe. How 13F filings work
COST filing archive
AI analysis pages for each 10-K, 10-Q and 8-K
10-K annual reports
10-Q quarterly reports
Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4
| Form | Filing date | Period | Analysis | SEC |
|---|---|---|---|---|
| 4 | Sep 30, 2026 | - | - | - |
| 4 | Sep 30, 2026 | - | - | - |
| 8-K | Sep 24, 2026 | - | Analysis | - |
| 4 | Sep 14, 2026 | - | - | - |
| 4 | Sep 14, 2026 | - | - | - |
| 4 | Sep 14, 2026 | - | - | - |
| 4 | Sep 14, 2026 | - | - | - |
| 4 | Sep 14, 2026 | - | - | - |
| 4 | Sep 14, 2026 | - | - | - |
| 4 | Sep 14, 2026 | - | - | - |
| 4 | Jul 14, 2026 | - | - | - |
| 8-K | Jul 8, 2026 | - | Analysis | - |
| 4 | Jun 25, 2026 | - | - | - |
| 10-Q | Jun 3, 2026 | May 10, 2026 | Analysis | |
| 8-K | May 28, 2026 | - | Analysis | |
| SC 13G | Apr 29, 2026 | - | - | |
| 8-K | Apr 15, 2026 | - | Analysis | - |
| 4 | Apr 1, 2026 | - | - | - |
| 4 | Mar 13, 2026 | - | - | - |
| 4 | Mar 13, 2026 | - | - | - |
| 10-Q | Mar 11, 2026 | Feb 15, 2026 | Analysis | |
| 4 | Mar 11, 2026 | - | - | - |
| 8-K | Mar 5, 2026 | - | Analysis | - |
| 4 | Jan 28, 2026 | - | - | |
| 4 | Jan 28, 2026 | - | - |
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COST SEC filings: frequently asked questions
Are COST insiders buying or selling?
In the last 90 days, Costco (COST) officers, directors and 10% owners reported no open-market purchases and 2 open-market sales worth $2.7 million by 2 insiders on Form 4. Many insider sales are pre-planned or for taxes, so purchases usually carry more information.
Which institutions hold COST stock?
As of June 30, 2026, the largest Costco (COST) holders among the 13F filers tracked by SignalX were BlackRock ($32.0 billion), Vanguard Capital Management LLC ($27.1 billion), State Street Corp ($17.2 billion), Invesco Ltd ($13.1 billion), Vanguard Portfolio Management LLC ($9.7 billion). 13F-HR reports are filed up to 45 days after each quarter ends.
What was COST's revenue in fiscal year 2025?
For the fiscal year ended August 31, 2025 (FY2025), Costco (COST) reported revenue of $275.2 billion (up 8.2% from FY2024) and net income of $8.1 billion. Diluted EPS was $18.21. The figures come from the XBRL data in the 10-K.
What are the main risks in COST's latest 10-K?
In the 10-K filed October 8, 2025, Costco (COST) flagged: No geopolitical or macroeconomic threat with concrete exposure detail disclosed. No operational or supply chain vulnerability specific to Costco disclosed. (AI summary of the Risk Factors section.)
What did COST report in its latest 8-K?
Costco (COST) filed an 8-K on September 24, 2026 reporting Item 2.02 (Results of Operations and Financial Condition). Fiscal 2026 results cover the 16-week fourth quarter and 52-week fiscal year ended August 30, 2026.
What are the latest COST SEC filings?
Costco (COST) filed its latest 10-K annual report on October 8, 2025, a 10-Q quarterly report on June 3, 2026, an 8-K current report on September 24, 2026 and a Form 4 insider filing on September 30, 2026.
What is COST's SEC CIK number?
Costco (COST)'s SEC Central Index Key (CIK) is 909832. EDGAR lists every COST filing under that number.
Ask anything about COST
The research agent reads COST's filings, financials, insider trades and 13F holders, then answers with sources.