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Form 4 · COST

Costco insider Tiffany Marie Barbre reports an award of 1,965 shares

Tiffany Marie Barbre, Costco's Principal Accounting Officer, filed a Form 4 on Oct 26, 2026 at 6:15 PM ET reporting transactions on Oct 22, 2026.

The filing reports 1,965 shares in a grant or award (code A); and about 537 shares withheld to pay the exercise price or tax (code F).

After these transactions, the filing lists about 6,584 shares held directly.

Effect on holdings

Taken together, the rows reported here raised Tiffany Marie Barbre's directly held shares by 27.7%, from about 5,155 to about 6,584.

Reporting person

Transactions as reported

DateCodeSecuritySharesPriceAcquired or disposedHeld afterOwnership
2026-10-22ACommon Stock1,965Acquired7,120Direct
2026-10-22FCommon Stock90$1,018.21Disposed7,030Direct
2026-10-22FCommon Stock94$1,018.21Disposed6,936Direct
2026-10-22FCommon Stock102$1,018.21Disposed6,835Direct
2026-10-22FCommon Stock85$1,018.21Disposed6,750Direct
2026-10-22FCommon Stock166$1,018.21Disposed6,584Direct

Codes: P purchase, S sale, A grant or award, M/X/C exercise or conversion, F shares withheld for taxes or the exercise price, G gift. Prices are as reported; some are weighted averages of several trades.

Source

Costco company file → · More Costco filings

Disclosures

Editor holdings in COST
The editor holds no position in Costco (COST). As of Oct 25, 2026.
Last updated
Oct 27, 2026

A summary of a public filing for general education, the same for every reader. Not a recommendation to buy, sell or hold COST.