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COST

Costco Wholesale Corporation

SEC registrant: COSTCO WHOLESALE CORP /NEW, CIK 909832. Common stock (inferred from the name, not yet reviewed). Issuer name and CIK from the SEC company list fetched 2026-09-05; the ticker match itself uses the exchange lists described on the methodology page.

Filed as: COSTCO WHSL CORP NEW; COSTCO WHOLESALE CORP; COSTCO WHOLESALE CORP NEW; Costco Wholesale Corp.; COSTCO WHOLESALE CORP UNSOLICITED; COSTCO WHOLESALE CORP-NEW and 4 more.

4officials
25trades
~$4.6Mtrade volume (est.)

Estimated transaction volume by official

Donald J. Trump$4.6MDouglas J Burgum$8KTroy D Edgar$8KPete Hegseth$8K

All Trades

DateOfficialAs filedTypeAmountVerification
June 24, 2026Donald J. Trump
President of the United States
COSTCO WHSL CORP NEW filingSale$250K-$500K
Checked

An OCR program and an AI model each read this row and agreed. A page check confirmed this row.

June 23, 2026Donald J. Trump
President of the United States
COSTCO WHSL CORP NEW filingSale$1K-$15K
Checked

An OCR program and an AI model each read this row and agreed. A page check confirmed this row.

June 15, 2026Donald J. Trump
President of the United States
COSTCO WHOLESALE CORP filingPurchase$1K-$15K
Checked

An OCR program and an AI model each read this row and agreed. A page check confirmed this row.

June 12, 2026Donald J. Trump
President of the United States
COSTCO WHOLESALE CORP filingSale$1K-$15K
Checked

An OCR program and an AI model each read this row and agreed. A page check confirmed this row.

May 11, 2026Donald J. Trump
President of the United States
COSTCO WHOLESALE CORP filingPurchase$1K-$15K
Checked

The PDF parser could not read this filing reliably, so two AI models from different companies read it and agreed. A page check confirmed this row.

May 5, 2026Donald J. Trump
President of the United States
Costco Whsl Corp New filingPurchase$15K-$50K
Checked

The PDF parser could not read this filing reliably, so two AI models from different companies read it and agreed. A page check confirmed this row.

April 17, 2026Donald J. Trump
President of the United States
COSTCO WHSL CORP NEW filingPurchase$1K-$15K
Checked

An OCR program and an AI model each read this row and agreed. A page check confirmed this row.

April 15, 2026Donald J. Trump
President of the United States
COSTCO WHOLESALE CORP filingPurchase$15K-$50K
Checked

An OCR program and an AI model each read this row and agreed. A page check confirmed this row.

April 10, 2026Donald J. Trump
President of the United States
COSTCO WHOLESALE CORP filingSale$1K-$15K
Checked

An OCR program and an AI model each read this row and agreed. A page check confirmed this row.

March 25, 2026Donald J. Trump
President of the United States
COSTCO WHOLESALE CORP UNSOLICITED filingPurchase$15K-$50K
Checked

The PDF parser could not read this filing reliably, so two AI models from different companies read it and agreed. A page check confirmed this row.

March 23, 2026Donald J. Trump
President of the United States
COSTCO WHOLESALE CORP UNSOLICITED filingPurchase$15K-$50K
Checked

An OCR program and an AI model each read this row and agreed. A page check confirmed this row.

March 23, 2026Donald J. Trump
President of the United States
COSTCO WHSL CORP NEW filingPurchase$1K-$15K
Checked

The PDF parser could not read this filing reliably, so two AI models from different companies read it and agreed. A page check confirmed this row.

March 17, 2026Donald J. Trump
President of the United States
COSTCO WHSL CORP NEW filingPurchase$1K-$15K
Checked

An OCR program and an AI model each read this row and agreed. A page check confirmed this row.

March 12, 2026Donald J. Trump
President of the United States
COSTCO WHOLESALE CORP UNSOLICITED filingPurchase$15K-$50K
Checked

An OCR program and an AI model each read this row and agreed. A page check confirmed this row.

March 11, 2026Donald J. Trump
President of the United States
COSTCO WHOLESALE CORP UNSOLICITED filingPurchase$15K-$50K
Checked

The PDF parser could not read this filing reliably, so two AI models from different companies read it and agreed. A page check confirmed this row.

March 6, 2026Donald J. Trump
President of the United States
Costco Whsl Corp New Com Solicited Order Discretion Exercised filingSale$15K-$50K
Checked

The PDF parser could not read this filing reliably, so two AI models from different companies read it and agreed. A page check confirmed this row.

March 2, 2026Donald J. Trump
President of the United States
COSTCO WHOLESALE CORP UNSOLICITED filingPurchase$100K-$250K
Checked

An OCR program and an AI model each read this row and agreed. A page check confirmed this row.

Feb. 10, 2026Donald J. Trump
President of the United States
COSTCO WHOLESALE CORP NEW filingPurchase$1M-$5M
Checked

An OCR program and an AI model each read this row and agreed. A page check confirmed this row.

Jan. 23, 2026Donald J. Trump
President of the United States
COSTCO WHOLESALE CORP filingPurchase$100K-$250K
Checked

The PDF parser could not read this filing reliably, so two AI models from different companies read it and agreed. A page check confirmed this row.

Jan. 12, 2026Donald J. Trump
President of the United States
COSTCO WHSL CORP NEW filingPurchase$250K-$500K
Checked

The PDF parser could not read this filing reliably, so two AI models from different companies read it and agreed. A page check confirmed this row.

Jan. 12, 2026Donald J. Trump
President of the United States
COSTCO WHSL CORP NEW filingPurchase$1K-$15K
Checked

The PDF parser could not read this filing reliably, so two AI models from different companies read it and agreed. A page check confirmed this row.

Jan. 6, 2026Donald J. Trump
President of the United States
COSTCO WHOLESALE CORP NEW filingPurchase$100K-$250K
Checked

The PDF parser could not read this filing reliably, so two AI models from different companies read it and agreed. A page check confirmed this row.

Oct. 24, 2025Douglas J Burgum
Secretary
Costco Wholesale Corp. filingSale$1K-$15K
Checked

A PDF parser and an AI model each read this filing and agreed on every row. A page check confirmed this row.

March 25, 2025Troy D Edgar
Deputy Secretary
Costco Wholesale Corp. filingSale$1K-$15K
Checked

A PDF parser and an AI model each read this filing and agreed on every row. A page check confirmed this row.

March 24, 2025Pete Hegseth
Secretary of Defense
Costco Wholesale Corp. filingSale$1K-$15K
Checked

A PDF parser and an AI model each read this filing and agreed on every row. A page check confirmed this row.

Source: U.S. Office of Government Ethics. Values reported in ranges per federal law. A trade is listed here only when its printed name was read the same way by two independent readers and matched this security exactly, by symbol or by name on two reference lists, or a person confirmed it. Broker abbreviations still under review are not listed; the trades stay on the official’s page under the printed name.