MARKET_TICKER: COST

COSTCO WHOLESALE CORPInsider Trading & SEC Form 4 Analysis

Institutional analysis of internal capital flows based on SEC Form 4 filings.

Executive Sentiment
BEARISH
SOURCE: EDGAR_SYSTEMSTATUS: VERIFIED
Net_Flow

-$34.9M

Buys minus sales
Last_Filing

2026.06.23

Latest Form 4
Active_Insiders

24

Reporting entities
Top_Buyer

No buyer detected

No open-market buys
Top_Seller

Klauer James C

$3.9M

Automated_Intelligence_Report :: COST

Algorithmic analysis of recent insider trading activity for COST reveals a bearish posture among the C-suite and board members. Based on the latest SEC Form 4 filings, we have tracked capital events executed by 24 distinct corporate insiders. The aggregate nominal exposure during this reporting cycle reached $59.17M.

Market dynamics show a negative net capital flow of $34.86M when isolating open-market purchases versus open-market sales. The trading volume is heavily weighted towards open-market executions, providing a clearer signal of insider conviction regarding current valuation levels compared to option-based equity grants.

From a microstructural perspective, the most significant liquidity event was a divestment by Klauer James C (Officer/Other), which accounts for a major share of the recent outflow. Continuous monitoring of these Tier-1 actors is essential, as their liquidity decisions often precede material corporate events or reflect an informed, asymmetric perspective on the future performance of COST.

Volume_30D

$59.17M

USD NOMINAL VALUE
Active_Insiders

24

UNIQUE C-SUITE ENTITIES
Last_Entry

2026.06.23

ISO_8601 FORMAT
Loading chart...
Entity / TimelineMethodologyPositionNet Value
DENMAN KENNETH D2026.06.23
DISPOSAL885$847,345.46
Frates Caton2026.04.01
DISPOSAL700$695,100
George Sarah Catherine2026.03.12
ACQUISITION642.125$636,482.78
MILLERCHIP GARY2026.03.11
ACQUISITION1,154.017$1,145,050.29
Adamo Claudine2026.03.09
DISPOSAL730$732,205.33
RAIKES JEFFREY S2026.01.27
ACQUISITION5,115$0
Jones Teresa A.2026.01.27
ACQUISITION300$0
Jones Teresa A.2026.01.21
DISPOSAL850$838,318.2
DECKER SUSAN L2026.01.16
DISPOSAL458$437,390
Raimondo Gina Marie2026.01.16
ACQUISITION215$0
Klauer James C2026.01.14
DISPOSAL1,500$1,408,500
Miller Russell D2026.01.09
DISPOSAL1,500$1,374,480
POLIT JAVIER2025.12.30
DISPOSAL558.305$481,758.59
POLIT JAVIER2025.12.29
DISPOSAL2,049$1,776,903.86
DENMAN KENNETH D2025.12.19
ACQUISITION325$0
DECKER SUSAN L2025.12.15
ACQUISITION2,827$0
RAIKES JEFFREY S2025.11.10
ACQUISITION4,120$0
Wilcox William Richard2025.11.07
DISPOSAL2,400$2,232,312
Barbre Tiffany Marie2025.10.24
DISPOSAL1,239.383$1,158,352.64
Adamo Claudine2025.10.24
DISPOSAL2,700$2,526,336
PAGE_ 1 _OF_ 5

Automated_Queries :: Frequently Asked Questions

>Are COST insiders selling their shares?

Yes, we have tracked $34.86M in recent insider liquidations. The most notable recent seller is Klauer James C, who executed the largest single offload.

>What is the overall insider sentiment for COST?

The short-term structural capital flow indicates a BEARISH sentiment, with a net flow of $34.86M generated by 24 active C-Suite entities.

>When was the latest SEC Form 4 filed for COST?

The most recent insider transaction on record was filed on 2026.06.23. InsiderAlpha monitors EDGAR filings and updates this terminal as new Form 4 documents are published.

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