In Q1 2026, institutional holders boosted net value by $37.8B; net buyers (2,042) exceeded sellers (1,739) by 303, with 255 new fund entries against 131 exits. Insider sales totaled only $4.8M over 90 days with zero buys, a negligible counter-signal.

Confirmation

A further increase in institutional weight or a turn to insider buying would reinforce this bullish call.

Invalidation Risk

A surge in insider selling or institutional net distribution would invalidate this view.

The above is AI-generated from public regulatory filings and summarizes historical data only. It is not investment advice and should not be used as the basis for any buy or sell decision.

Insider Trading (Form 4)

90d confidence

unique buyers

—

buy value

data as of 2026-07-16

12-Month Buy/Sell Activity

Mar 25

Jul 25

Oct 25

Jan 26

BuySell

操作	內部人	職稱	交易日	金額
賣出	Adamo Claudine	Executive Vice President	2026-03-09	$732K
賣出	Jones Teresa A.	Executive Vice President	2026-01-21	$838K
賣出	DECKER SUSAN L	Director	2026-01-16	$437K
賣出	Klauer James C	Executive Vice President	2026-01-14	$1.41M
賣出	Miller Russell D	Sr. Executive Vice President	2026-01-09	$1.37M
賣出	POLIT JAVIER	Executive Vice President	2025-12-30	$482K
賣出	POLIT JAVIER	Executive Vice President	2025-12-29	$1.78M
賣出	Wilcox William Richard	Executive Vice President	2025-11-07	$2.23M

View all insider trades →

Form 144 Pre-Sale Notices

Filings (90d)

$2.82M

Total Est. Value

3K shares

Planned Shares

Last Filed 2026-06-23

Filer	Title/Relationship	Filing Date	Planned Shares	Est. Value
DENMAN KENNETH D	Director	2026-06-23	885 shares	$847K
Callans Patrick J	Former Officer	2026-06-12	1K shares	$973K
Callans Patrick J	Former Officer	2026-06-05	1K shares	$995K

Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

Filings (14d)

Data as of 2026-07-08

2026-07-08

No AI summary for this filing type

View Full Filing (SEC EDGAR)

View all Form 8-K filings

FAQ

Who are the top institutional investors holding COSTCO WHOLESALE CORP (COST)?

Major stakeholders currently include BlackRock, Inc. ($34.8B), Vanguard Capital Management LLC ($28.7B), State Street CORP ($18.1B). Based on the latest 13F filings, there are a total of 4216 tracked investment funds and institutions maintaining positions in COST.

What is the overall institutional sentiment toward COST recently?

Institutional sentiment appears Bullish (Net Buying). During the most recent reporting quarter, the stock experienced a net inflow of $37.8B, driven by 2043 managers accumulating shares while 1739 reduced their exposure.

Which institutions have been selling or reducing their COST positions?

In the latest period, 1608 funds trimmed their holdings, and 131 managers completely exited their positions. The aggregate reported sell value was $116.3B.

Are there any notable investors adding COST to their portfolios?

Yes, buying activity remains notable. 255 institutions opened new positions in {ticker}, and 1788 existing holders added to their shares. The total reported buy value for the quarter amounted to $160.7B.