Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
2025-09-29 Sale | 2025-10-01 5:00 pm | COSTCO WHOLESALE CORP | COST | Miller Russell D Sr. Executive Vice President | 3,381 | $915 | $3,093,615 | 9,741 (Indirect Direct) | View |
2025-09-29 Sale | 2025-09-30 4:54 pm | COSTCO WHOLESALE CORP | COST | Frates Caton Executive Vice President | 1,540 | $910.02 | $1,401,431 | 9,284 (Direct) | View |
2025-08-20 Sale | 2025-08-22 5:26 pm | COSTCO WHOLESALE CORP | COST | Jones Teresa A. Executive Vice President | 600 | $992.05 | $595,230 | 2,362 (Direct) | View |
2025-07-14 Sale | 2025-07-15 4:10 pm | COSTCO WHOLESALE CORP | COST | Rubanenko Yoram Executive Vice President | 4,000 | $974.96 | $3,899,852 | 5,774 (Direct) | View |
2025-06-18 Sale | 2025-06-20 4:40 pm | COSTCO WHOLESALE CORP | COST | DECKER SUSAN L Director | 547 | $980 | $536,058 | 11,531 (Direct) | View |
2025-06-09 Sale | 2025-06-10 4:52 pm | COSTCO WHOLESALE CORP | COST | Callans Patrick J Executive Vice President | 3,000 | $1,003 | $3,008,298 | 58,543 (Direct) | View |
2025-06-06 Sale | 2025-06-09 4:21 pm | COSTCO WHOLESALE CORP | COST | Riel Pierre Executive Vice President | 2,000 | $1,014 | $2,028,294 | 8,210 (Direct) | View |
2025-04-17 Sale | 2025-04-21 4:33 pm | COSTCO WHOLESALE CORP | COST | Klauer James C Executive Vice President | 4,000 | $981.07 | $3,924,280 | 44,092 (Indirect Direct) | View |
2025-03-27 Sale | 2025-03-27 5:24 pm | COSTCO WHOLESALE CORP | COST | MILLERCHIP GARY Executive Vice President | 1,100 | $940.01 | $1,034,007 | 11,165 (Direct) | View |
2025-03-24 Sale | 2025-03-25 5:13 pm | COSTCO WHOLESALE CORP | COST | Adamo Claudine Executive Vice President | 900 | $922.56 | $830,304 | 6,987 (Direct) | View |
2025-03-18 Sale | 2025-03-20 4:18 pm | COSTCO WHOLESALE CORP | COST | Frates Caton Executive Vice President | 850 | $900.25 | $765,213 | 7,876 (Direct) | View |
2025-03-11 Sale | 2025-03-13 5:16 pm | COSTCO WHOLESALE CORP | COST | Vachris Roland Michael President and CEO | 3,600 | $931 | $3,351,600 | 41,077 (Direct) | View |
2024-10-24 Sale | 2024-10-24 8:00 pm | COSTCO WHOLESALE CORP | COST | GALANTI RICHARD A Executive Vice President | 1,416 | $894.68 | $1,267,280 | 35,126 (Indirect Direct) | View |
2024-10-23 Sale | 2024-10-24 7:45 pm | COSTCO WHOLESALE CORP | COST | Jones Teresa A. Executive Vice President | 800 | $896.54 | $717,236 | 2,961 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
Ownership | 2025-10-09 5:55 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Wilcox William Richard Executive Vice President | 0 | $0 | 4,401 (Indirect) | View |
2025-09-23 Gift | 2025-09-24 4:17 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Miller Russell D Sr. Executive Vice President | 2,918 | $0 | 13,122 (Direct) | View |
2025-09-10 Tax Withholding | 2025-09-12 5:56 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Rubanenko Yoram Executive Vice President | 1,746 | $956.29 | 8,247 (Direct) | View |
2025-09-10 Option Award | 2025-09-12 5:56 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Rubanenko Yoram Executive Vice President | 4,219 | $0 | 8,247 (Direct) | View |
2025-09-10 Tax Withholding | 2025-09-12 5:53 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Riel Pierre Executive Vice President | 1,608 | $956.29 | 11,256 (Direct) | View |
2025-09-10 Option Award | 2025-09-12 5:53 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Riel Pierre Executive Vice President | 4,654 | $0 | 11,256 (Direct) | View |
2025-09-10 Tax Withholding | 2025-09-12 5:51 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Miller Russell D Sr. Executive Vice President | 1,735 | $956.29 | 13,122 (Direct) | View |
2025-09-10 Option Award | 2025-09-12 5:51 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Miller Russell D Sr. Executive Vice President | 4,654 | $0 | 13,122 (Direct) | View |
2025-09-10 Tax Withholding | 2025-09-12 5:45 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Klauer James C Executive Vice President | 958 | $956.29 | 47,353 (Direct) | View |
2025-09-10 Option Award | 2025-09-12 5:45 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Klauer James C Executive Vice President | 4,219 | $0 | 47,353 (Direct) | View |
2025-09-10 Tax Withholding | 2025-09-12 5:43 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Jones Teresa A. Executive Vice President | 1,503 | $956.29 | 5,078 (Direct) | View |
2025-09-10 Option Award | 2025-09-12 5:43 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Jones Teresa A. Executive Vice President | 4,219 | $0 | 5,078 (Direct) | View |
2025-09-10 Tax Withholding | 2025-09-12 5:40 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Frates Caton Executive Vice President | 1,271 | $956.29 | 10,824 (Direct) | View |
2025-09-10 Option Award | 2025-09-12 5:40 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Frates Caton Executive Vice President | 4,219 | $0 | 10,824 (Direct) | View |
2025-09-10 Tax Withholding | 2025-09-12 5:36 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Callans Patrick J Executive Vice President | 950 | $956.29 | 61,812 (Direct) | View |
2025-09-10 Option Award | 2025-09-12 5:36 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Callans Patrick J Executive Vice President | 4,219 | $0 | 61,812 (Direct) | View |
2025-09-10 Tax Withholding | 2025-09-12 5:33 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Adamo Claudine Executive Vice President | 950 | $956.29 | 10,256 (Direct) | View |
2025-09-10 Option Award | 2025-09-12 5:33 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Adamo Claudine Executive Vice President | 4,219 | $0 | 10,256 (Direct) | View |
2025-09-02 Gift | 2025-09-04 4:24 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | STANTON JOHN W Director | 211 | $0 | 24,015 (Indirect) | View |
2025-07-14 Gift | 2025-07-15 4:13 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | RAIKES JEFFREY S Director | 6,573 | $0 | 20,242 (Direct) | View |
Ownership | 2025-07-10 4:27 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Barbre Tiffany Marie Principal Accounting Officer | 0 | $0 | 4,819 (Direct) | View |
2023-07-20 Acquisition | 2025-04-21 4:33 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Klauer James C Executive Vice President | 99 | $0 | 44,092 (Indirect) | View |
2025-03-11 Tax Withholding | 2025-03-13 5:14 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | MILLERCHIP GARY Executive Vice President | 1,147 | $930.49 | 12,265 (Direct) | View |
2024-12-19 Gift | 2024-12-23 4:37 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | JELINEK W CRAIG Director | 2,017 | $0 | 354,392 (Direct) | View |
2024-12-16 Gift | 2024-12-18 5:17 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | RAIKES JEFFREY S Director | 3,969 | $0 | 26,815 (Direct) | View |
2024-12-16 Gift | 2024-12-18 5:13 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | DENMAN KENNETH D Director | 520 | $0 | 5,703 (Direct) | View |
2024-10-22 Tax Withholding | 2024-10-24 8:20 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Klauer James C Executive Vice President | 1,097 | $893.49 | 47,994 (Direct) | View |
2024-10-22 Tax Withholding | 2024-10-24 7:55 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Vachris Roland Michael President and CEO | 1,731 | $893.49 | 44,677 (Direct) | View |
2024-10-22 Option Award | 2024-10-24 7:55 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Vachris Roland Michael President and CEO | 19,148 | $0 | 44,677 (Direct) | View |
2024-10-22 Tax Withholding | 2024-10-24 7:53 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Sullivan John Christopher Executive VP | 2,521 | $893.49 | 45,531 (Direct) | View |
2024-10-22 Option Award | 2024-10-24 7:53 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Sullivan John Christopher Executive VP | 7,433 | $0 | 45,531 (Direct) | View |
2024-10-22 Tax Withholding | 2024-10-24 7:51 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | POLIT JAVIER Executive Vice President | 674 | $893.49 | 9,746 (Direct) | View |
2024-10-22 Option Award | 2024-10-24 7:51 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | POLIT JAVIER Executive Vice President | 6,737 | $0 | 9,746 (Direct) | View |
2024-10-22 Tax Withholding | 2024-10-24 7:49 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | MILLERCHIP GARY Executive Vice President | 313 | $893.49 | 13,412 (Direct) | View |
2024-10-22 Option Award | 2024-10-24 7:49 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | MILLERCHIP GARY Executive Vice President | 3,922 | $0 | 13,412 (Direct) | View |
2024-10-22 Tax Withholding | 2024-10-24 7:45 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Jones Teresa A. Executive Vice President | 1,174 | $893.49 | 2,961 (Direct) | View |
2024-10-22 Tax Withholding | 2024-10-24 7:42 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Frates Caton Executive Vice President | 957 | $893.49 | 8,726 (Direct) | View |
2024-10-22 Tax Withholding | 2024-10-24 7:41 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Callans Patrick J Executive Vice President | 4,121 | $893.49 | 61,543 (Direct) | View |
2024-10-22 Tax Withholding | 2024-10-24 7:39 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Adamo Claudine Executive Vice President | 743 | $893.49 | 7,887 (Direct) | View |
2024-10-22 Tax Withholding | 2024-10-24 5:39 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Hines Daniel M. Principal Acctg Officer | 954 | $893.49 | 12,986 (Direct) | View |
2024-10-22 Option Award | 2024-10-24 5:39 pm | N/A N/A | COSTCO WHOLESALE CORP | COST | Hines Daniel M. Principal Acctg Officer | 2,149 | $0 | 12,986 (Direct) | View |