COST congressional trades

Costco Wholesale Corporation (COST) appears in 33 congressional disclosure rows from 15 members of Congress in 2025–2026 periodic reports: 14 purchases and 19 sales, with trade dates from Mar 15, 2023 to Oct 13, 2026. C. Franklin reported the most, with 4 rows. The median gap between trade date and filing date is 26 days, and 10 trades were reported more than 45 days after it happened.

Rows keep the disclosed owner and amount range. This is a record of reported transactions, not a live COST portfolio or a trading signal.

Verified rows
33
Filers
15
Buys / sells
14 / 19
Disclosed range
$557K – $1.6M
sum of reported ranges
Latest trade
2026-10-13

Verified COST congressional disclosures

Parsed from official House Clerk and Senate eFD filings. This snapshot contains 14 purchases and 19 sales. Reported owners: Self, Spouse, Joint. Transaction dates run from 2023-03-15 to 2026-10-13.

PoliticianTrade dateAssetTypeOwnerAmountFiling
Pete SessionsCostco Wholesale Corporation - Common StockSaleSelf$100,001 - $250,000#20035563
Filed 2026-10-27
Pete SessionsCostco Wholesale Corporation - Common StockSaleSpouse$250,001 - $500,000#20035563
Filed 2026-10-27
Rick AllenCostco Wholesale Corporation - Common StockSaleSpouse$1,001 - $15,000#20035648
Filed 2026-10-14
Rich McCormickCostco Wholesale Corporation - Common StockSaleSelf$1,001 - $15,000#20035204
Filed 2026-08-14
Dan NewhouseCostco Wholesale Corporation - Common StockPurchaseSpouse$1,001 - $15,000#20034998
Filed 2026-07-17
Alan ArmstrongCostco Wholesale Corporation - Common StockPurchaseSelf$1,001 - $15,000#fda235b3-bad7-4637-8fa1-053f354d929c
Filed 2026-07-21
Gilbert CisnerosCostco Wholesale Corporation - Common StockPurchaseSelf$1,001 - $15,000#20033983
Filed 2026-02-13
Gilbert CisnerosCostco Wholesale Corporation - Common StockSaleSelf$1,001 - $15,000#20033762
Filed 2026-01-12
Rich McCormickCostco Wholesale Corporation - Common StockPurchaseSelf$1,001 - $15,000#20033610
Filed 2025-12-09
Gilbert CisnerosCostco Wholesale Corporation - Common StockPurchaseSelf$1,001 - $15,000#20033455
Filed 2025-11-18
Shelley CapitoCostco WholesaleSaleSpouse$1,001 - $15,000#defd46d8-f9db-46d6-96f9-77bebce203b6
Filed 2025-11-04
John BoozmanCostco WholesalePurchaseJoint$1,001 - $15,000#97a4172e-e2d9-4dea-9014-d8aa2134d628
Filed 2025-11-15
Valerie HoyleCostco Wholesale Corporation - Common StockSaleSpouse$1,001 - $15,000#20032211
Filed 2025-10-10
Lisa McClainCostco Wholesale Corporation - Common StockSaleSpouse$1,001 - $15,000#20030891
Filed 2025-08-13
Lisa McClainCostco Wholesale Corporation - Common StockPurchaseSpouse$1,001 - $15,000#20030891
Filed 2025-08-13
Lisa McClainCostco Wholesale Corporation - Common StockSaleSpouse$1,001 - $15,000#20030891
Filed 2025-08-13
Jefferson ShreveCostco Wholesale Corporation - Common StockSaleSelf$100,001 - $250,000#20030387
Filed 2025-06-22
Bruce WestermanCostco Wholesale Corporation - Common StockSaleSelf$1,001 - $15,000#20030332
Filed 2025-05-12
Jefferson ShreveCostco Wholesale Corporation - Common StockSaleSelf$15,001 - $50,000#20029038
Filed 2025-04-11
Greg LandsmanCostco Wholesale Corporation - Common StockSaleJoint$1,001 - $15,000#20029084
Filed 2025-04-08
Greg LandsmanCostco Wholesale Corporation - Common StockSaleSpouse$1,001 - $15,000#20029084
Filed 2025-04-08
Greg LandsmanCostco Wholesale Corporation - Common StockSaleJoint$15,001 - $50,000#20029084
Filed 2025-04-08
Bruce WestermanCostco Wholesale Corporation - Common StockPurchaseSelf$1,001 - $15,000#20030146
Filed 2025-04-16
Greg LandsmanCostco Wholesale Corporation - Common StockSaleJoint$1,001 - $15,000#20027885
Filed 2025-03-05
C. FranklinCostco Wholesale Corporation - Common StockSaleSelf$1,001 - $15,000#20027995
Filed 2025-03-18
C. FranklinCostco Wholesale Corporation - Common StockSaleSpouse$1,001 - $15,000#20027995
Filed 2025-03-18
C. FranklinCostco Wholesale Corporation - Common StockSaleSelf$50,001 - $100,000#20027995
Filed 2025-03-18
James ComerCostco Wholesale Corporation - Common StockPurchaseSelf$1,001 - $15,000#20018054
Filed 2025-01-10
James ComerCostco Wholesale Corporation - Common StockPurchaseSelf$1,001 - $15,000#20018054
Filed 2025-01-10
Lisa McClainCostco Wholesale Corporation - Common StockPurchaseSpouse$1,001 - $15,000#20030891
Filed 2025-08-13
Valerie HoyleCostco Wholesale Corporation - Common StockPurchaseSpouse$1,001 - $15,000#20032070
Filed 2025-09-12
C. FranklinCostco Wholesale Corporation - Common StockPurchaseSpouse$1,001 - $15,000#20030494
Filed 2025-07-03
Rich McCormickCostco Wholesale Corporation - Common StockPurchaseSelf$1,001 - $15,000#20030699
Filed 2025-09-17

A filing can describe the member, a spouse, a dependent, or a joint asset. Amounts are statutory ranges, not execution prices. See how to read congressional stock-trade disclosures before treating a delayed row as a trading signal.

COST disclosures by member

MemberRowsBuysSellsLast trade
C. Franklin's COST trades4132025-01-28
Greg Landsman's COST trades4042025-03-27
Lisa McClain's COST trades4222025-07-10
Gilbert Cisneros's COST trades3212026-01-30
Rich McCormick's COST trades3212026-07-30
Bruce Westerman2112025-04-21
James Comer2202025-01-02
Jefferson Shreve2022025-05-12
Pete Sessions2022026-10-13
Valerie Hoyle2112025-09-23
Alan Armstrong1102026-03-27
Dan Newhouse1102026-07-10
John Boozman1102025-10-09
Rick Allen1012026-09-18
Shelley Capito1012025-10-17

How long disclosure took

Days from trade date to filing date for 33 rows. The STOCK Act allows 30 days from notification and no more than 45 days from the trade. A late row is a timing fact, not evidence of wrongdoing.

0–15 days
11
16–30 days
6
31–45 days
6
Over 45 days
10
Median / longest
26d / 917d

Source documents

24 House Clerk and Senate eFD periodic transaction reports, newest first. Each link opens the official filing.

12 older filings are linked from the transaction table.

What COST filings don’t tell you

A disclosure row records a trade date, an amount bracket, and who owned the asset. It does not say why the trade was made, whether the position is still held, or anything about the business behind the ticker: revenue trends, margins, balance-sheet risk, or valuation. Those answers are in company filings, not congressional ones.

To work through a company yourself, use our stock research checklist. Members get the full version of that work: one sourced investment call a month, with the numbers and the risks that would change the view.

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COST congressional trades: FAQ

Who in Congress traded COST?

House Clerk and Senate eFD periodic reports for 2025 and 2026 contain 33 verified COST rows from 15 members: Alan Armstrong, Bruce Westerman, C. Franklin, Dan Newhouse, and 11 other members. Image-only filings are excluded, and this is not a live brokerage statement.

Does this page show current COST holdings?

No. STOCK Act filings disclose reportable transactions after the fact, usually within 45 days, as amount ranges and owners. They do not prove a current position, an exact share count, or why the trade happened.

Why are COST amounts shown as ranges?

Congressional periodic transaction reports use statutory value bands such as $100,001 - $250,000; $250,001 - $500,000; $1,001 - $15,000; $15,001 - $50,000; $50,001 - $100,000. Yield Theory keeps those ranges instead of inventing a midpoint, exact trade size, or return.

How complete is COST congressional-trade coverage?

This snapshot covers every machine-readable House and Senate periodic transaction report for 2025 and 2026 (178 members). Image-only House filings and paper Senate filings are not included, so missing rows are not proof that no other lawmaker traded COST.

Yield Theory is not affiliated with any elected official. This page uses the 2025–2026 House Clerk and Senate eFD periodic report snapshot generated 2026-11-03. It is not a complete lifetime portfolio, a performance track record, or investment advice.

A disclosure is not a thesis.

This page shows who reported COST and in what range. Membership is the monthly sourced call, plus a five-minute check when the evidence moves. $39/month or $249/year.

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