Costco Wholesale Corporation
US ˙ NasdaqGS ˙ US22160K1051

SecurityCOST / Costco Wholesale Corporation
InsiderPatrick J Callans
This page shows the track record and history of Callans Patrick J insider trades in Costco Wholesale Corporation. The SEC defines Insiders as officers, directors, or significant investors (greater than 10% ownership) in a company. It is illegal for insiders to make trades in their companies based on material, non-public information ("MNPI"). This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4.
Insider Purchases - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made by Patrick J Callans in COST / Costco Wholesale Corporation. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares		 Reported
Price		 Adjusted
Shares		 Adjusted
Price		 Cost Basis Days to
Max		 Price at
Max		 Max
Profit ($)		 Max Return (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

COST / Costco Wholesale Corporation Insider Trades
Insider Sales - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by Patrick J Callans in COST / Costco Wholesale Corporation. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares		 Reported
Price		 Adjusted
Shares		 Adjusted
Price		 Cost Basis Days to
Min		 Price at
Min		 Max Loss
Avoided ($)		 Max Loss
Avoided (%)
2025-06-09 3,000 1,002.7660 3,000 1,002.7660 3,008,298 51 927.5100 -225,768 -7.50
2024-09-30 2,500 893.9400 2,500 893.9400 2,234,850
2024-03-11 2,500 714.8600 2,500 714.8600 1,787,150
2023-10-09 2,500 553.7600 2,500 553.7600 1,384,400
2021-12-13 2,500 549.0300 2,500 549.0300 1,372,575
2021-06-07 2,500 384.3100 2,500 384.3100 960,775
2020-12-14 2,500 374.6450 2,500 374.6450 936,612
2020-06-05 2,500 309.2200 2,500 309.2200 773,050
2019-12-16 2,000 293.9934 2,000 293.9934 587,987
2019-06-07 2,000 252.1540 2,000 252.1540 504,308

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

COST / Costco Wholesale Corporation Insider Trades
Insider Transaction History
File
Date		 Trade
Date		 Form Insider Ticker Security Title Code 10b5-1 Direct Exercise
Price		 Unit
Price		 Units
Changed		 Value
Changed (1K)		 Remaining
Options		 Remaining
Shares
2025-09-12 2025-09-10 4 Callans Patrick J COST Common Stock F - Taxes D 956.2900 -950 -908 61,812
2025-09-12 2025-09-10 4 Callans Patrick J COST Common Stock A - Award D 4,219 62,761
2025-06-10 2025-06-09 4 Callans Patrick J COST Common Stock S - Sale D 1,002.7660 -3,000 -3,008 58,543
2024-10-24 2024-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 893.4900 -1,060 -947 61,543
2024-10-24 2024-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 893.4900 -992 -886 62,603
2024-10-24 2024-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 893.4900 -764 -683 63,595
2024-10-24 2024-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 893.4900 -721 -644 64,359
2024-10-24 2024-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 893.4900 -584 -521 65,080
2024-10-02 2024-09-30 4 Callans Patrick J COST Common Stock G - Gift D -750 65,664
2024-10-02 2024-09-30 4 Callans Patrick J COST Common Stock S - Sale D 893.9400 -2,500 -2,235 66,414
2024-09-18 2024-09-16 4 Callans Patrick J COST Common Stock F - Taxes D 907.8700 -718 -652 68,914
2024-09-18 2024-09-16 4 Callans Patrick J COST Common Stock A - Award D 6,737 69,632
2024-03-13 2024-03-11 4 Callans Patrick J COST Common Stock S - Sale D 714.8600 -2,500 -1,787 62,895
2024-02-22 2024-01-12 4/A Callans Patrick J COST Common Stock A - Award D 192 65,395
2024-01-12 2024-01-12 4 Callans Patrick J COST Common Stock A - Award D 121 65,324
2023-10-24 2023-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 552.9300 -375 -207 65,203
2023-10-24 2023-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 552.9300 -472 -261 65,578
2023-10-24 2023-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 552.9300 -573 -317 66,050
2023-10-24 2023-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 552.9300 -722 -399 66,623
2023-10-24 2023-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 552.9300 -390 -216 67,345
2023-10-11 2023-10-09 4 Callans Patrick J COST Common Stock G - Gift D -200 67,734
2023-10-11 2023-10-09 4 Callans Patrick J COST Common Stock S - Sale D 553.7600 -2,500 -1,384 67,934
2023-10-11 2022-12-13 4 Callans Patrick J COST Common Stock G - Gift D -94 70,434
2023-09-19 2023-09-15 4 Callans Patrick J COST Common Stock F - Taxes D 556.3600 -705 -392 70,528
2023-09-19 2023-09-15 4 Callans Patrick J COST Common Stock A - Award D 7,429 71,234
2022-10-25 2022-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 478.1800 -376 -180 63,805
2022-10-25 2022-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 478.1800 -472 -226 64,181
2022-10-25 2022-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 478.1800 -574 -274 64,653
2022-10-25 2022-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 478.1800 -722 -345 65,227
2022-10-25 2022-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 478.1800 -509 -243 65,949
2022-10-11 2021-12-14 5 Callans Patrick J COST Common Stock G - Gift D -65 59,966
2022-10-11 2022-09-12 4/A Callans Patrick J COST Common Stock A - Award D 7,154 66,458
2022-09-14 2022-09-12 4 Callans Patrick J COST Common Stock F - Taxes D 539.5200 -662 -357 61,757
2022-09-14 2022-09-12 4 Callans Patrick J COST Common Stock A - Award D 2,388 62,419
2021-12-14 2021-12-13 4 Callans Patrick J COST Common Stock S - Sale D 549.0300 -2,500 -1,373 60,031
2021-10-26 2021-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 481.9900 -472 -227 62,531
2021-10-26 2021-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 481.9900 -574 -277 63,003
2021-10-26 2021-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 481.9900 -723 -348 63,577
2021-10-26 2021-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 481.9900 -510 -246 64,300
2021-10-26 2021-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 481.9900 -551 -266 64,810
2021-09-16 2021-09-14 4 Callans Patrick J COST Common Stock F - Taxes D 458.4100 -855 -392 65,361
2021-09-16 2021-09-14 4 Callans Patrick J COST Common Stock A - Award D 8,998 66,216
2021-06-08 2021-06-07 4 Callans Patrick J COST Common Stock S - Sale D 384.3100 -2,500 -961 57,218
2021-06-08 2020-12-14 4 Callans Patrick J COST Common Stock G - Gift D -120 59,718
2020-12-14 2020-12-14 4 Callans Patrick J COST Common Stock S - Sale D 374.6450 -2,500 -937 59,838
2020-12-11 2020-12-11 4 Callans Patrick J COST Common Stock A - Award D 288 62,338
2020-10-23 2020-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 375.7500 -564 -212 62,050
2020-10-23 2020-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 375.7500 -710 -267 62,614
2020-10-23 2020-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 375.7500 -500 -188 63,324
2020-10-23 2020-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 375.7500 -540 -203 63,824
2020-10-23 2020-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 375.7500 -509 -191 64,364
2020-09-15 2020-09-14 4 Callans Patrick J COST Common Stock F - Taxes D 342.9200 -971 -333 64,873
2020-09-15 2020-09-14 4 Callans Patrick J COST Common Stock A - Award D 10,730 65,844
2020-06-05 2020-06-05 4 Callans Patrick J COST Common Stock S - Sale D 309.2200 -2,500 -773 55,114
2019-12-17 2019-12-16 4 Callans Patrick J COST Common Stock G - Gift D -65 57,614
2019-12-17 2019-12-16 4 Callans Patrick J COST Common Stock S - Sale D 293.9934 -2,000 -588 57,679
2019-12-17 2019-10-31 4 Callans Patrick J COST Common Stock G - Gift D -51 59,679
2019-10-24 2019-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 299.9700 -2,483 -745 59,730
2019-10-24 2019-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 299.9700 -1,499 -450 62,213
2019-10-24 2019-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 299.9700 -1,350 -405 63,712
2019-10-24 2019-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 299.9700 -860 -258 65,062
2019-10-24 2019-10-22 4 Callans Patrick J COST Common Stock F - Taxes D 299.9700 -557 -167 65,922
2019-06-10 2019-06-07 4 Callans Patrick J COST Common Stock S - Sale D 252.1540 -2,000 -504 66,479
2019-01-10 3 Callans Patrick J COST Common Stock D 136,957
2019-01-10 3 Callans Patrick J COST Common Stock D 136,957
2019-01-10 3 Callans Patrick J COST Common Stock D 136,957
P
Åbent marked eller privat køb af ikke-afledte eller afledte værdipapirer
S
Åbent marked eller privat salg af ikke-afledte eller afledte værdipapirer
A
Tildeling, tildeling eller anden erhvervelse af værdipapirer fra virksomheden (såsom en option)
C
Konvertering af derivat
D
Salg eller overførsel af værdipapirer tilbage til virksomheden
F
Betaling af udnyttelseskurs eller skatteforpligtelse ved brug af en del af værdipapirer modtaget fra selskabet
G
Gave af værdipapirer af eller til insideren
K
Aktieswaps og lignende sikringstransaktioner
M
Udnyttelse eller konvertering af afledt værdipapir modtaget fra virksomheden (såsom en option)
V
En transaktion rapporteret frivilligt på formular 4
J
Andet (ledsaget af en fodnote, der beskriver transaktionen)