COST Congressional Stock Trades
COSTCO WHOLESALE CORPORATION
Last disclosed trade Oct 13
Every disclosed trade in COST by members of Congress under the STOCK Act, parsed by Coldpine. Informational only, sourced from public filings. Not investment advice. See every consumer discretionary stock Congress trades.
Sample · the intelligence layer
Pete Sessions · Sold $COST · Oct 2 · $250K–$500K
2 other members traded this name in the same window.
Coldpine’s read
This spouse-owned sale of $250,001–$500,000 is large relative to typical individual disclosures and was held within Trust One. Two other members logged same-direction COST trades within 30 days, indicating cluster activity in the name. The 25-day disclosure lag means the sale had time to be absorbed before it became public.
Every disclosed trade in the database gets this treatment: a four-factor score and a written read from Coldpine’s AI-based analysis. Informational only, not investment advice. Create a free account for every scored trade →
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The record on $COST
Coldpine has parsed 60 disclosed trades in $COST by 14 members of Congress, drawn from 45 periodic transaction reports dated Mar 31, 2021 through Oct 13, 2026. That is 58 trades from House members and 2 trades from senators, filed 35 by Democrats and 25 by Republicans.
Of the 60 trades with a known filing lag, 7 were reported more than 45 days after the trade date, outside the window the STOCK Act sets. The median lag was 25 days. The longest was 917 days: a $COST purchase by Richard Dean McCormick dated Mar 15, 2023, disclosed Sep 17, 2025. How late filing is measured across all of Congress is in the late-filers study.
43 of the 50 trades that list an account holder (86%) were reported under a spouse, dependent child, or joint account rather than the member directly.
Rohit Khanna filed the most $COST purchases (18), and Rohit Khanna the most sales (11).
Activity peaked in 2025 with 22 trades. The busiest single month was March 2025, when 3 different members disclosed $COST trades. In 1 calendar month out of 29 with activity, three or more members bought $COST in the same month, the same-direction overlap Coldpine's cluster detector looks for.
Across the 34 purchases Coldpine can price, $COST moved +5.95% on average between the trade date and the disclosure date, against +4.41% for the S&P 500 over the same windows. The stock was higher at disclosure than at the trade in 68% of those purchases. That is a record of what already happened, not a forecast. Method: what stocks do before Congress discloses.
Members who trade COST
Recent disclosed trades in COST
| Date | Member | Type | Amount |
|---|---|---|---|
| Oct 13 | Pete Sessions(TX) | sell | $100K–$250K |
| Oct 2 | Pete Sessions(TX) | sell | $250K–$500K |
| Sep 25 | Rohit Khanna(CA) | buy | $1K–$15K |
| Sep 18 | Richard W. Allen(GA) | sell | $1K–$15K |
| Sep 11 | Rohit Khanna(CA) | buy | $1K–$15K |
| Sep 4 | Rohit Khanna(CA) | sell | $15K–$50K |
| Aug 24 | Rohit Khanna(CA) | buy | $1K–$15K |
| Jul 30 | Richard Dean McCormick(GA) | sell | $1K–$15K |
| Jul 20 | Rohit Khanna(CA) | sell | $15K–$50K |
| Jun 2 | Rohit Khanna(CA) | sell | $1K–$15K |
| Mar 27 | Alan Armstrong(OK) | buy | $1K–$15K |
| Dec 29 | Markwayne Mullin(OK) | buy | $15K–$50K |
| Dec 12 | Rohit Khanna(CA) | sell | $15K–$50K |
| Dec 5 | Rohit Khanna(CA) | sell | $1K–$15K |
| Nov 10 | Rohit Khanna(CA) | buy | $15K–$50K |
| Nov 5 | Richard Dean McCormick(GA) | buy | $1K–$15K |
| Nov 3 | Rohit Khanna(CA) | buy | $1K–$15K |
| Oct 7 | Rohit Khanna(CA) | sell | $15K–$50K |
| Sep 29 | Rohit Khanna(CA) | sell | $1K–$15K |
| Mar 27 | Greg Landsman(OH) | sell | $15K–$50K |
Showing 20 of 60 disclosed trades.
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Data sourced from public STOCK Act disclosures. Coldpine is a publisher of intelligence on congressional disclosures, not an investment adviser. See full history and scores, free with an account →