Costco Wholesale Corp Officer Claudine Adamo Files Form 144 to Sell $2.02M in Stock
COSTCO WHOLESALE CORP /NEW
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Filing Summary
Form 144 Filing Alert: COSTCO WHOLESALE CORP /NEW ($COST)
Insider: Adamo Claudine (Officer) Proposed Sale: 2,200 Common Shares Estimated Value: $2,015,046.00 (~$915.93/share) Broker: Fidelity Brokerage Services LLC Date of Plan / Approx Sale: 09/29/2026 Origin: Restricted Stock Vesting (Issuer compensation)
Comprehensive Analysis
Executive Summary
On September 29, 2026, Claudine Adamo, an Officer at Costco Wholesale Corp /NEW ($COST), filed a Form 144 notice of proposed sale of 2,200 shares of common stock with an aggregate estimated market value of $2,015,046.00 (implying an average price of approximately $915.93 per share).
Transaction Details
- Filer: Claudine Adamo
- Position: Officer
- Shares to be Sold: 2,200 shares
- Total Market Value: $2,015,046.00
- Approximate Sale Date: September 29, 2026
- Broker: Fidelity Brokerage Services LLC
- Securities Origin: The shares originate from restricted stock unit (RSU) vesting:
- 664 shares acquired on September 10, 2025
- 1,536 shares acquired on September 10, 2026
- Past 3 Months Activity: None reported.
Market Impact & Significance
The trading significance is assessed as Low. The proposed transaction of 2,200 shares represents a negligible fraction of Costco's 443,478,804 shares outstanding. The sale appears to be routine equity compensation monetization following the vesting of restricted stock awards in September 2025 and September 2026.
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