Gary Millerchip

CIK: 0001771770

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)1 (7.1%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)5 (35.7%)

Compensation grants

Other (G, F, J, C, D, …)8 (57.1%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

COST

COSTCO WHOLESALE CORP /NEW

Officer

SLM

SLM Corp

Director

Discretionary Trading P&L

Holdings

Transaction History (14 total)

COST
COSTCO WHOLESALE CORP /NEW
Oct 22, 2026
Award(A)
Direct
6.1K shares-
COST
COSTCO WHOLESALE CORP /NEW
Oct 22, 2026
Tax Payment(F)
Direct
313 shares at avg. $1018.21$319K
COST
COSTCO WHOLESALE CORP /NEW
Oct 22, 2026
Tax Payment(F)
Direct
500 shares at avg. $1018.21$509K
COST
COSTCO WHOLESALE CORP /NEW
Oct 22, 2026
Tax Payment(F)
Direct
817 shares at avg. $1018.21$832K
SLM
SLM Corp
Jun 16, 2026
Award(A)
Direct
7.3K shares-
COST
COSTCO WHOLESALE CORP /NEW
Mar 11, 2026
Tax Payment(F)
Direct
1.2K shares at avg. $992.23$1.1M
COST
COSTCO WHOLESALE CORP /NEW
Oct 22, 2025
Tax Payment(F)
Direct
500 shares at avg. $944.68$473K
COST
COSTCO WHOLESALE CORP /NEW
Oct 22, 2025
Tax Payment(F)
Direct
313 shares at avg. $944.68$296K
COST
COSTCO WHOLESALE CORP /NEW
Oct 22, 2025
Award(A)
Direct
6.3K shares-
SLM
SLM Corp
Jun 17, 2025
Award(A)
Direct
5.3K shares-
COST
COSTCO WHOLESALE CORP /NEW
Mar 27, 2025
Sale(S)
Direct
1.1K shares at avg. $940.01$1.0M
COST
COSTCO WHOLESALE CORP /NEW
Mar 11, 2025
Tax Payment(F)
Direct
1.1K shares at avg. $930.49$1.1M
COST
COSTCO WHOLESALE CORP /NEW
Oct 22, 2024
Award(A)
Direct
3.9K shares-
COST
COSTCO WHOLESALE CORP /NEW
Oct 22, 2024
Tax Payment(F)
Direct
313 shares at avg. $893.49$280K

		Type	Shares	Price		Ownership
Oct 22, 2026	COST COSTCO WHOLESALE CORP /NEW	Award(A)	6,140	-	$0	Direct
Oct 22, 2026	COST COSTCO WHOLESALE CORP /NEW	Tax Payment(F)	313	$1018.21	$319,159	Direct
Oct 22, 2026	COST COSTCO WHOLESALE CORP /NEW	Tax Payment(F)	500	$1018.21	$509,434	Direct
Oct 22, 2026	COST COSTCO WHOLESALE CORP /NEW	Tax Payment(F)	817	$1018.21	$831,845	Direct
Jun 16, 2026	SLM SLM Corp	Award(A)	7,349	-	$0	Direct
Mar 11, 2026	COST COSTCO WHOLESALE CORP /NEW	Tax Payment(F)	1,154	$992.23	$1,145,050	Direct
Oct 22, 2025	COST COSTCO WHOLESALE CORP /NEW	Tax Payment(F)	500	$944.68	$472,642	Direct
Oct 22, 2025	COST COSTCO WHOLESALE CORP /NEW	Tax Payment(F)	313	$944.68	$295,732	Direct
Oct 22, 2025	COST COSTCO WHOLESALE CORP /NEW	Award(A)	6,268	-	-	Direct
Jun 17, 2025	SLM SLM Corp	Award(A)	5,281	-	-	Direct
Mar 27, 2025	COST COSTCO WHOLESALE CORP /NEW	Sale(S)	1,100	$940.01	$1,034,007	Direct
Mar 11, 2025	COST COSTCO WHOLESALE CORP /NEW	Tax Payment(F)	1,147	$930.49	$1,067,509	Direct
Oct 22, 2024	COST COSTCO WHOLESALE CORP /NEW	Award(A)	3,922	-	$0	Direct
Oct 22, 2024	COST COSTCO WHOLESALE CORP /NEW	Tax Payment(F)	313	$893.49	$279,709	Direct

1-14 of 14 transactions

About MILLERCHIP GARY

MILLERCHIP GARY (SEC CIK 0001771770) files insider reports with the SEC as Executive Vice President of COSTCO WHOLESALE CORP /NEW (COST) and Director of SLM Corp (SLM).

Signal8 holds 9 ownership filings by MILLERCHIP GARY (1 Form 3, 8 Form 4), filed between Oct 24, 2024 and Oct 26, 2026. Those filings report 14 transactions, from Oct 22, 2024 to Oct 22, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on MILLERCHIP GARY's filings is in ISSAQUAH, WA.

Recent filings by MILLERCHIP GARY

Oct 22, 2026: Grant or award of COST shares (Form 4, code A).
Oct 22, 2026: Tax withholdings of COST shares (3 lines, Form 4, code F).
Jun 16, 2026: Grant or award of SLM shares (Form 4, code A).
Mar 11, 2026: Tax withholding of COST shares (Form 4, code F).
Oct 22, 2025: Tax withholdings of COST shares (2 lines, Form 4, code F).

Other insiders filing for COSTCO WHOLESALE CORP /NEW (COST)

Sullivan John Christopher, Executive VP
Self Adam Webb, Executive Vice President
POLIT JAVIER, Executive Vice President
Vachris Roland Michael, President and CEO
Wilderotter Mary Agnes, Director
STANTON JOHN W, Director

How to read Form 4 transaction codes