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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 DefensiveHypermarkets & Super Centers$1008.43+0.52%

Operates a membership-based warehouse retail model offering bulk groceries, general merchandise, and ancillary services such as fuel and pharmacies. The company generates the majority of its operating income from recurring membership fees, supporting a high-volume, low-margin merchandising strategy across the U.S. and international markets. Investors track its performance as a gauge of consumer spending trends, pricing power in staples, and traffic resilience in a competitive retail environment.

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

Congressional Interest in Costco Wholesale Corporation (COST)

8 members of Congress have disclosed 34 trades in Costco Wholesale Corporation (COST), a Consumer Defensive company. The buy/sell breakdown shows 29 purchases versus 5 sales, indicating net buying interest from lawmakers. All data is sourced from STOCK Act periodic transaction reports filed with Congress.

Total Disclosures
34
Unique Politicians
8
Buys
29
Sells
5

Who in Congress Is Trading COST?

DatePoliticianTypeAmountSecurity
2008-02-12MARY BONO MACKbuy$1K – $15KStock
2008-02-10MARY BONO MACKbuy$1K – $15KStock

Related

All stocks traded by CongressFull trade feedMost active tradersAbout the STOCK ActReport missing trade
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
2008-01-10MARY BONO MACKbuy$1K – $15KStock
2007-10-07Vern Buchananbuy$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
2007-07-08CONNIE 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
2007-04-04MICHAEL T. MCCAULbuy(32,632.50)Stock
2007-03-04MICHAEL T. MCCAULbuy(36,176.05)Stock
2007-03-04MICHAEL T. MCCAULbuy$36,176.05Stock
2007-03-04MICHAEL T. MCCAULbuy$36,176.05Stock
2006-10-09Rodney P. FrelinghuysensellCStock
2006-06-11Vern Buchananbuy$1K – $15KStock
2004-08-08Lamar Smithbuy$2,107.80Stock
2003-02-11MARY BONO MACKsell$1K – $15KStock
2001-08-08Lamar Smithbuy$6,439.90Stock
2001-07-11MARY BONO MACKsell$1K – $15KStock
2001-07-10CONNIE MACKbuy$1K – $15KStock
2001-02-09MICHAEL T. MCCAULbuy$1K – $15KStock
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
MARY BONO MACKbuy
2008-01-10$1K – $15K
Stock
Vern Buchananbuy
2007-10-07$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
CONNIE 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
2007-04-04(32,632.50)
Stock
MICHAEL T. MCCAULbuy
2007-03-04(36,176.05)
Stock
MICHAEL T. MCCAULbuy
2007-03-04$36,176.05
Stock
MICHAEL T. MCCAULbuy
2007-03-04$36,176.05
Stock
Rodney P. Frelinghuysensell
2006-10-09C
Stock
Vern Buchananbuy
2006-06-11$1K – $15K
Stock
Lamar Smithbuy
2004-08-08$2,107.80
Stock
MARY BONO MACKsell
2003-02-11$1K – $15K
Stock
Lamar Smithbuy
2001-08-08$6,439.90
Stock
MARY BONO MACKsell
2001-07-11$1K – $15K
Stock
CONNIE MACKbuy
2001-07-10$1K – $15K
Stock
MICHAEL T. MCCAULbuy
2001-02-09$1K – $15K
Stock
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