Riel Pierre

Insider

First SEC filing: March 14, 2022 · Latest: March 14, 2022

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 6 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

6 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Sept. 10, 2025	COST	F	1,608	$956.29	$1,537,714	11,256 Direct	-12.50%	Disposed	1.9% (price as of 2026-08-19)
Sept. 10, 2025	COST	A	4,654	—	—	12,864 Direct	+56.69%	Acquired	(price as of 2026-08-19)
June 6, 2025	COST	S	2,000	$1014.15	$2,028,300	8,210 Direct	-19.59%	Disposed	-3.9% (price as of 2026-08-19)
Oct. 15, 2024	COST	S	2,000	$896.71	$1,793,420	10,210 Direct	-16.38%	Disposed	8.7% (price as of 2026-08-19)
Sept. 16, 2024	COST	F	2,645	$907.87	$2,401,316	12,210 Direct	-17.81%	Disposed	7.3% (price as of 2026-08-19)
Sept. 16, 2024	COST	A	7,433	—	—	14,856 Direct	+100.13%	Acquired	(price as of 2026-08-19)
Nov. 7, 2023	COST	S	3,000	$571.12	$1,713,360	7,422 Direct	-28.79%	Disposed	70.6% (price as of 2026-08-19)
Sept. 15, 2023	COST	F	2,725	$556.36	$1,516,081	10,422 Direct	-20.73%	Disposed	75.2% (price as of 2026-08-19)
Sept. 15, 2023	COST	A	7,429	—	—	13,147 Direct	+129.92%	Acquired	(price as of 2026-08-19)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
March 14, 2022	COST	Common Stock	5,718	Direct