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Congress Stock Tracker

Tracking congressional stock trades from public STOCK Act Periodic Transaction Reports (PTRs) filed by members of the US House and Senate.

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© 2026 Congress Stock Tracker. Data from public STOCK Act filings.For informational purposes only. Not financial advice.
Stocks
Costco Wholesale Corporation

Costco Wholesale CorporationCOST

NASDAQConsumer DefensiveWarehouse Clubs & Supercenters$1008.43+0.52%

A membership-based warehouse retailer operating large-format stores that sell a limited assortment of bulk groceries, household goods, electronics, and other merchandise. The company generates significant recurring income from annual membership fees while maintaining high inventory turnover and low ...

Market Cap: $447.4B52W Range: $844.06 – $1067.08

Congressional Interest in Costco Wholesale Corporation (COST)

9 members of Congress have disclosed 50 trades in Costco Wholesale Corporation (COST), a Consumer Defensive company. The buy/sell breakdown shows 39 purchases versus 11 sales, indicating net buying interest from lawmakers. All data is sourced from STOCK Act periodic transaction reports filed with Congress.

Total Disclosures
50
Unique Politicians
9
Buys
39
Sells
11

Who in Congress Is Trading COST?

DatePoliticianTypeAmountSecurity
2009-10-11MICHAEL T. MCCAULbuy$1K – $15KStock
2009-10-11MICHAEL T. MCCAULbuy$1K – $15KStock

Related

All stocks traded by CongressFull trade feedMost active tradersAbout the STOCK ActReport missing trade
2009-09-04Rodney P. Frelinghuysensell$50K – $100KStock
2009-09-03Rodney P. Frelinghuysensell$15K – $50KStock
2009-07-05JANE HARMANsell$15K – $50KStock
2009-06-04JANE HARMANsell$1K – $15KStock
2009-05-03JANE HARMANbuy$15K – $50KStock
2009-04-11MICHAEL T. MCCAULbuy$1K – $15KStock
2009-04-11MICHAEL T. MCCAULbuy$1K – $15KStock
2009-02-01MICHAEL T. MCCAULbuy$1K – $15KStock
2009-02-01MICHAEL T. MCCAULbuy$1K – $15KStock
2008-12-06CAROLYN MCCARTHYsell$2,390Stock
2008-12-03CAROLYN MCCARTHYbuy$945Stock
2008-10-06Vern Buchanansell$1K – $15KStock
2008-09-12MARY BONO MACKbuy$1K – $15KStock
2008-09-12MARY BONO MACKbuy$1K – $15KStock
2008-09-12CONNIE MACKsell$1K – $15KStock
2008-09-12MARY BONO MACKbuy$1K – $15KStock
2008-09-12MARY BONO MACKbuy$1K – $15KStock
2008-08-11DAVE CAMPsell$15K – $50KStock
2008-07-07CONNIE MACKbuy$1K – $15KStock
2008-07-07MARY BONO MACKbuy$1K – $15KStock
2008-07-07CONNIE MACKbuy$1K – $15KStock
2008-06-03MICHAEL T. MCCAULbuy—Stock
2008-05-02JANE HARMANbuy$1K – $15KStock
2008-04-11CAROLYN MCCARTHYbuy$1,386Stock
2008-03-10JANE HARMANsell$1K – $15KStock
2008-03-09MICHAEL T. MCCAULbuy—Stock
2008-03-01MICHAEL T. MCCAULbuy—Stock
2008-02-12MARY BONO MACKbuy$1K – $15KStock
2008-02-10MARY BONO MACKbuy$1K – $15KStock
2008-02-10MARY BONO MACKbuy$1K – $15KStock
2008-01-10MARY BONO MACKbuy$1K – $15KStock
2008-01-10MARY BONO MACKbuy$1K – $15KStock
2008-01-10MARY BONO MACKbuy$1K – $15KStock
2007-10-01Vern Buchananbuy$1K – $15KStock
2007-09-11JANE HARMANbuy$15K – $50KStock
2007-09-01DAVE CAMPbuy$1K – $15KStock
2007-09-01JANE HARMANbuy$15K – $50KStock
2007-07-12Lamar Smithbuy$6,991.67Stock
2007-07-08MARY BONO MACKbuy$1K – $15KStock
2007-07-08CONNIE MACKbuy$1K – $15KStock
2007-07-08MARY BONO MACKbuy$1K – $15KStock
2007-05-10Vern Buchananbuy$1K – $15KStock
2007-05-10Vern Buchanansell$1K – $15KStock
2007-05-03DAVE CAMPsell$1K – $15KStock
2007-04-04MICHAEL T. MCCAULbuy$32,632.50Stock
2007-04-04MICHAEL T. MCCAULbuy(32,632.50)Stock
2007-03-04MICHAEL T. MCCAULbuy(36,176.05)Stock
2007-03-04MICHAEL T. MCCAULbuy$36,176.05Stock
MICHAEL T. MCCAULbuy
2009-10-11$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2009-10-11$1K – $15K
Stock
Rodney P. Frelinghuysensell
2009-09-04$50K – $100K
Stock
Rodney P. Frelinghuysensell
2009-09-03$15K – $50K
Stock
JANE HARMANsell
2009-07-05$15K – $50K
Stock
JANE HARMANsell
2009-06-04$1K – $15K
Stock
JANE HARMANbuy
2009-05-03$15K – $50K
Stock
MICHAEL T. MCCAULbuy
2009-04-11$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2009-04-11$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2009-02-01$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2009-02-01$1K – $15K
Stock
CAROLYN MCCARTHYsell
2008-12-06$2,390
Stock
CAROLYN MCCARTHYbuy
2008-12-03$945
Stock
Vern Buchanansell
2008-10-06$1K – $15K
Stock
MARY BONO MACKbuy
2008-09-12$1K – $15K
Stock
MARY BONO MACKbuy
2008-09-12$1K – $15K
Stock
CONNIE MACKsell
2008-09-12$1K – $15K
Stock
MARY BONO MACKbuy
2008-09-12$1K – $15K
Stock
MARY BONO MACKbuy
2008-09-12$1K – $15K
Stock
DAVE CAMPsell
2008-08-11$15K – $50K
Stock
CONNIE MACKbuy
2008-07-07$1K – $15K
Stock
MARY BONO MACKbuy
2008-07-07$1K – $15K
Stock
CONNIE MACKbuy
2008-07-07$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2008-06-03—
Stock
JANE HARMANbuy
2008-05-02$1K – $15K
Stock
CAROLYN MCCARTHYbuy
2008-04-11$1,386
Stock
JANE HARMANsell
2008-03-10$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2008-03-09—
Stock
MICHAEL T. MCCAULbuy
2008-03-01—
Stock
MARY BONO MACKbuy
2008-02-12$1K – $15K
Stock
MARY BONO MACKbuy
2008-02-10$1K – $15K
Stock
MARY BONO MACKbuy
2008-02-10$1K – $15K
Stock
MARY BONO MACKbuy
2008-01-10$1K – $15K
Stock
MARY BONO MACKbuy
2008-01-10$1K – $15K
Stock
MARY BONO MACKbuy
2008-01-10$1K – $15K
Stock
Vern Buchananbuy
2007-10-01$1K – $15K
Stock
JANE HARMANbuy
2007-09-11$15K – $50K
Stock
DAVE CAMPbuy
2007-09-01$1K – $15K
Stock
JANE HARMANbuy
2007-09-01$15K – $50K
Stock
Lamar Smithbuy
2007-07-12$6,991.67
Stock
MARY BONO MACKbuy
2007-07-08$1K – $15K
Stock
CONNIE MACKbuy
2007-07-08$1K – $15K
Stock
MARY BONO MACKbuy
2007-07-08$1K – $15K
Stock
Vern Buchananbuy
2007-05-10$1K – $15K
Stock
Vern Buchanansell
2007-05-10$1K – $15K
Stock
DAVE CAMPsell
2007-05-03$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2007-04-04$32,632.50
Stock
MICHAEL T. MCCAULbuy
2007-04-04(32,632.50)
Stock
MICHAEL T. MCCAULbuy
2007-03-04(36,176.05)
Stock
MICHAEL T. MCCAULbuy
2007-03-04$36,176.05
Stock
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