Washington · Established 2026

The Potomac Ledger

Tracking Washington Stock Trades · Decoded Each Week

Stock · Consumer Defensive

Costco Wholesale Corporation COST

Who in Washington is trading it · Feb 8 – Aug 17

U.S. members of Congress and senior executive-branch officials must disclose their trades in Costco Wholesale Corporation (COST) under the STOCK Act and federal ethics rules. Below is every disclosed COST trade we track — who traded it, when it was disclosed, and the disclosed dollar range. Figures are disclosed ranges; disclosure dates lag the trade by 30–45 days.

73Disclosed trades
35Officials
10/12Buys / Sells
$687K–$2.4MDisclosed $ volume
65/8Congress / Exec
3Flagged overlap

Who has traded COST

…and 23 more officials.

Recent disclosed COST trades

OfficialDisclosedTxnAmountFlags
Rich McCormickAug 17SELL$1K–$15K
Dan NewhouseJul 20BUY$1K–$15KConflict
Markwayne MullinJun 24SELL$100K–$250KLate
Gilbert CisnerosFeb 11BUY$1K–$15K
Richard Dean Dr McCormickDec 9BUY$1K–$15K
John BoozmanNov 15BUY$1K–$15KConflict
Douglas J BurgumNov 13SELL$1K–$15K
Gilbert CisnerosNov 12BUY$1K–$15K
Shelley Moore CapitoNov 4SELL$1K–$15K
Valerie HoyleSep 23SELL$1K–$15K
Richard Dean Dr McCormickSep 17p$1K–$15KLate
Valerie HoyleSep 12p$1K–$15KLate
Scott Scott FranklinJul 3p$1K–$15KLate
Bruce WestermanMay 12s$1K–$15K
Troy D EdgarMay 1SELL$1K–$15KLate
Bruce WestermanApr 16p$1K–$15K
Pete HegsethApr 11SELL$1K–$15K
Greg LandsmanApr 8s$1K–$15K
Greg LandsmanApr 8s$15K–$50K
Marjorie Taylor Mrs GreeneMar 19p$1K–$15K
Scott Scott FranklinMar 18s$1K–$15KLate
Scott Scott FranklinMar 18s$50K–$100KLate
Greg LandsmanMar 5s (partial)$1K–$15K
James ComerJan 10p$1K–$15K
Marjorie Taylor Mrs GreeneNov 27p$1K–$15K
Marjorie Taylor Mrs GreeneOct 8p$1K–$15K
Jared MoskowitzAug 21p$1K–$15KLate
Jared MoskowitzAug 21p$1K–$15KLate
Scott Scott FranklinAug 20s (partial)$1K–$15K
Scott Scott FranklinAug 20s (partial)$15K–$50K
Greg LandsmanAug 14p$1K–$15KLate
Greg LandsmanAug 14p$1K–$15KLate
Marjorie Taylor Mrs GreeneJun 27p$1K–$15K
Pete SessionsFeb 29p$1K–$15K
Kevin HernFeb 11p$1K–$15K
John R CurtisDec 15s$1K–$15K
Markwayne MullinNov 1BUY$1K–$15K
Markwayne MullinOct 12BUY$15K–$50K
Daniel S SullivanSep 18SELL$1K–$15K
Zoe LofgrenJun 6s$1K–$15K

Showing 40 of 73 disclosed COST trades — the full history and downloadable data are in The Full Ledger, or query it via the API.