Costco Wholesale Corporation
US ˙ NasdaqGS ˙ US22160K1051

SecurityCOST / Costco Wholesale Corporation
InsiderCaton Frates
This page shows the track record and history of Frates Caton 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 Caton Frates 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 Caton Frates 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 (%)
2025-03-18 850 900.2501 850 900.2501 765,213 2 895.4000 -4,122 -0.54
2024-09-30 1,700 883.3500 1,700 883.3500 1,501,695
2024-01-16 740 683.4991 740 683.4991 505,789
2023-10-06 1,200 562.6418 1,200 562.6418 675,170
2023-04-11 600 497.3465 600 497.3465 298,408

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 Frates Caton COST Common Stock F - Taxes D 956.2900 -1,271 -1,216 10,824
2025-09-12 2025-09-10 4 Frates Caton COST Common Stock A - Award D 4,219 12,095
2025-03-20 2025-03-18 4 Frates Caton COST Common Stock S - Sale D 900.2501 -850 -765 7,876
2024-10-24 2024-10-22 4 Frates Caton COST Common Stock F - Taxes D 893.4900 -228 -203 8,726
2024-10-24 2024-10-22 4 Frates Caton COST Common Stock F - Taxes D 893.4900 -255 -228 8,953
2024-10-24 2024-10-22 4 Frates Caton COST Common Stock F - Taxes D 893.4900 -125 -112 9,209
2024-10-24 2024-10-22 4 Frates Caton COST Common Stock F - Taxes D 893.4900 -157 -141 9,334
2024-10-24 2024-10-22 4 Frates Caton COST Common Stock F - Taxes D 893.4900 -191 -171 9,491
2024-10-02 2024-09-30 4 Frates Caton COST Common Stock S - Sale D 883.3500 -1,700 -1,502 9,682
2024-09-18 2024-09-16 4 Frates Caton COST Common Stock F - Taxes D 907.8700 -2,111 -1,917 11,382
2024-09-18 2024-09-16 4 Frates Caton COST Common Stock A - Award D 6,737 13,493
2024-02-22 2024-01-12 4/A Frates Caton COST Common Stock A - Award D 66 6,756
2024-01-16 2024-01-16 4 Frates Caton COST Common Stock S - Sale D 683.4991 -740 -506 6,721
2024-01-12 2024-01-12 4 Frates Caton COST Common Stock A - Award D 31 7,461
2023-10-24 2023-10-22 4 Frates Caton COST Common Stock F - Taxes D 552.9300 -120 -67 7,430
2023-10-24 2023-10-22 4 Frates Caton COST Common Stock F - Taxes D 552.9300 -152 -84 7,550
2023-10-24 2023-10-22 4 Frates Caton COST Common Stock F - Taxes D 552.9300 -184 -102 7,702
2023-10-24 2023-10-22 4 Frates Caton COST Common Stock F - Taxes D 552.9300 -231 -128 7,886
2023-10-24 2023-10-22 4 Frates Caton COST Common Stock F - Taxes D 552.9300 -246 -136 8,117
2023-10-11 2023-10-06 4 Frates Caton COST Common Stock S - Sale D 562.6418 -1,200 -675 8,363
2023-09-19 2023-09-15 4 Frates Caton COST Common Stock F - Taxes D 556.3600 -2,186 -1,216 9,563
2023-09-19 2023-09-15 4 Frates Caton COST Common Stock A - Award D 7,429 11,749
2023-04-13 2023-04-11 4 Frates Caton COST Common Stock S - Sale D 497.3465 -600 -298 4,320
2022-10-25 2022-10-22 4 Frates Caton COST Common Stock F - Taxes D 478.1800 -85 -41 4,920
2022-10-25 2022-10-22 4 Frates Caton COST Common Stock F - Taxes D 478.1800 -106 -51 5,005
2022-10-25 2022-10-22 4 Frates Caton COST Common Stock F - Taxes D 478.1800 -129 -62 5,111
2022-10-25 2022-10-22 4 Frates Caton COST Common Stock F - Taxes D 478.1800 -162 -77 5,240
2022-10-25 2022-10-22 4 Frates Caton COST Common Stock F - Taxes D 478.1800 -224 -107 5,402
2022-05-16 3 Frates Caton COST Common Stock D 5,626
P
Köp på öppna marknaden eller privat köp av icke-derivatsäkerhet
S
Köp på öppna marknaden eller privat försäljning av icke-derivatsäkerhet
A
Bevilja, tilldelning eller annat förvärv av värdepapper från företaget (såsom en option)
C
Omvandling av derivat
D
Försäljning eller överföring av värdepapper tillbaka til företaget
F
Betalning av lösenpris eller skatteskuld med del av värdepapper som erhållits från bolaget
G
Överlåtelse av värdepapper från eller till insidern
K
Aktieswappar och liknande säkringsaffärer
M
Utövande eller omvandling av derivatsäkerhet som erhållits från företaget (som en option)
V
En transaktion friviligt rapporterad på schema 4
J
Andra (med en fotnot som beskriver transaktionen)