Insider trade

Director sold ~$437K of COST shares in the open market

Traded Jan 16, 2026 · Filed Jan 20, 2026

CostcoCOST

~$437K
Reported value · 458 sh @ $955.00: 8,531.94
Holds after · shares reported: -5.0%
stock since the trade · S&P 500 +10.5%, $963.61 → $914.94 on Oct 1

Why it stands out

A board member of Costco sold $437K of Costco shares. Nobody planned it ahead of time.

Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell

View the official recordSEC Form 4 — Statement of Changes in Beneficial Ownership

All the details

Dates, kept separate

Transaction date: Jan 16, 2026
Reporting period: Not applicable
Filed with the SEC: Jan 20, 2026

Director$100K–$500K

Context

Classification

open market sale

Code S — open-market or private sale

Absolute commitment

~$437,390

Shares × reported transaction price

Timing vs results

36 days after results of Dec 11, 2025, 48 days before results of Mar 5, 2026

Results dates are the company's own 8-K (Item 2.02). Many companies only let insiders trade in a window after results

Price at the time

Closed at $963.61 on Jan 16, 2026, 13% above its 52-week low and 11% below its high, after a 4% rise over the previous 30 trading days

52-week range $850.00 (Dec 22, 2025) to $1,076.86 (Feb 13, 2025), 50% of the way up, from 251 adjusted closes. 30 trading days earlier: $922.26 on Dec 3, 2025. Describes the past only, not a forecast

Planned / mechanical clue

None found in footnotes

Only flagged when a footnote says so; never inferred

After it was reported

After	Stock	S&P 500	Difference
7 days	-2.3%	+1.5%	-3.7%
30 days	+0.3%	+0.6%	-0.3%
90 days	+2.3%	+2.7%	-0.4%
180 days	-4.8%	+8.3%	-13.1%

Past results only. Not a forecast.

Source receipt

Record ID: 0000909832-26-000012
Filed / recorded: Jan 20, 2026, 9:15 PM UTC
Added to OQRO: Oct 2, 2026, 3:52 AM UTC
Parser: form4-xml-v1
Data quality: Verified: identifiers matched exactly
Issuer: COSTCO WHOLESALE CORP /NEW
Issuer CIK: 909832
Ticker: COST
Reporting person: Susan L Decker
Relationship: Director
Security: Common Stock
Table: Non-derivative (Table I)
Transaction date: Jan 16, 2026
Transaction code: S
Shares / units: 458
Price per share: $955.00
Acquired / disposed: Disposed (D)
Shares owned after: 8,531.936
Ownership form: Direct
Amendment: No

Around the same time

8mo ago

Congress trade

$1,001 - $15,000Reported range · official band, not an exact amount

4 different filers disclosed COST within 90 days. Disclosed 14 days after the transaction; reported as an official range, not an exact amount.

Why it stands out Official record

8mo ago

300Shares

Gift or transfer — classified separately from trades.

Why it stands out Official record

8mo ago

5,115Shares

Gift or transfer — classified separately from trades.

Why it stands out Official record