COST

Costco Wholesale Corp /new

Insider trading activity for Costco Wholesale Corp /new, straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 6 months

-$1.5M

net selling

Bought(0 · 0 insiders): $0
Sold(2 · 2 insiders): $1.5M

Past 12 months

-$19M

net selling

Bought(0 · 0 insiders): $0
Sold(14 · 10 insiders): $19M

Transaction history

The 100 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Sep 10	Rubanenko Yoram	Executive Vice President	FTAX	1,695.95	$902.38	$1.5M	-13.7%	Open the original filing on SEC.gov
Sep 10	Rubanenko Yoram	Executive Vice President	AGRANT	4,129	—	—	+50.1%	Open the original filing on SEC.gov
Sep 10	Wilcox William Richard	Executive Vice President	FTAX	1,934.61	$902.38	$1.7M	-31.6%	Open the original filing on SEC.gov
Sep 10	Wilcox William Richard	Executive Vice President	AGRANT	4,129	—	—	+206.4%	Open the original filing on SEC.gov
Sep 10	Klauer James C	Executive Vice President	FTAX	936.12	$902.38	$844.7K	-1.9%	Open the original filing on SEC.gov
Sep 10	Klauer James C	Executive Vice President	AGRANT	4,129	—	—	+9.2%	Open the original filing on SEC.gov
Sep 10	Riel Pierre	Executive Vice President	FTAX	1,561.66	$902.38	$1.4M	-9.9%	Open the original filing on SEC.gov
Sep 10	Riel Pierre	Executive Vice President	AGRANT	4,552	—	—	+40.4%	Open the original filing on SEC.gov
Sep 10	Jones Teresa A.	Executive Vice President	FTAX	1,458.54	$902.38	$1.3M	-18.1%	Open the original filing on SEC.gov
Sep 10	Jones Teresa A.	Executive Vice President	AGRANT	4,129	—	—	+105.1%	Open the original filing on SEC.gov
Sep 10	Frates Caton	Executive Vice President	FTAX	1,654.36	$902.38	$1.5M	-16.0%	Open the original filing on SEC.gov
Sep 10	Frates Caton	Executive Vice President	AGRANT	4,552	—	—	+78.3%	Open the original filing on SEC.gov
Sep 10	Adamo Claudine	Executive Vice President	FTAX	916.69	$902.38	$827.2K	-8.9%	Open the original filing on SEC.gov
Sep 10	Adamo Claudine	Executive Vice President	AGRANT	4,129	—	—	+67.5%	Open the original filing on SEC.gov
Jul 10	Raikes Jeffrey S	Director	GGIFT	5,249	—	—	-46.5%	Open the original filing on SEC.gov
Jun 23	Denman Kenneth D	Director	SSELL	885	$957.45	$847.3K	-15.6%	Open the original filing on SEC.gov
Apr 1	Frates Caton	Executive Vice President	SSELL	700	$993.00	$695.1K	-10.7%	Open the original filing on SEC.gov
Mar 12	George Sarah Catherine	Executive Vice President	IDISCR	642.13	$991.21	$636.5K	-100.0%	Open the original filing on SEC.gov
Mar 11	Millerchip Gary	Executive Vice President	FTAX	1,154.02	$992.23	$1.1M	-6.9%	Open the original filing on SEC.gov
Mar 9	Adamo Claudine	Executive Vice President	SSELL	730	$1,003.02	$732.2K	-10.7%	Open the original filing on SEC.gov
Jan 27	Raikes Jeffrey S	Director	GGIFT	5,115	—	—	-31.2%	Open the original filing on SEC.gov
Jan 27	Jones Teresa A.	Executive Vice President	GGIFT	300	—	—	-7.1%	Open the original filing on SEC.gov
Jan 21	Jones Teresa A.	Executive Vice President	SSELL	850	$986.26	$838.3K	-16.7%	Open the original filing on SEC.gov
Jan 16	Decker Susan L	Director	SSELL	458	$955.00	$437.4K	-5.1%	Open the original filing on SEC.gov
Jan 16	Raimondo Gina Marie	Director	AGRANT	215	—	—	—	Open the original filing on SEC.gov
Jan 14	Klauer James C	Executive Vice President	SSELL	1,500	$939.00	$1.4M	-3.2%	Open the original filing on SEC.gov
Jan 9	Miller Russell D	Sr. Executive Vice…	SSELL	1,500	$916.32	$1.4M	-15.4%	Open the original filing on SEC.gov
Dec 30, 2025	Polit Javier	Executive Vice President	SSELL	558.3	$862.90	$481.8K	-5.2%	Open the original filing on SEC.gov
Dec 29, 2025	Polit Javier	Executive Vice President	SSELL	2,049	$867.21	$1.8M	-16.0%	Open the original filing on SEC.gov
Dec 19, 2025	Denman Kenneth D	Director	GGIFT	325	—	—	-5.4%	Open the original filing on SEC.gov
Dec 15, 2025	Decker Susan L	Director	GGIFT	2,827	—	—	-23.9%	Open the original filing on SEC.gov
Nov 10, 2025	Raikes Jeffrey S	Director	GGIFT	4,120	—	—	-20.1%	Open the original filing on SEC.gov
Nov 7, 2025	Wilcox William Richard	Executive Vice President	SSELL	2,400	$930.13	$2.2M	-54.5%	Open the original filing on SEC.gov
Oct 24, 2025	Barbre Tiffany Marie	Principal Accounting…	SSELL	1,239.38	$934.62	$1.2M	-19.4%	Open the original filing on SEC.gov
Oct 24, 2025	Adamo Claudine	Executive Vice President	SSELL	2,700	$935.68	$2.5M	-28.3%	Open the original filing on SEC.gov
Oct 22, 2025	Vachris Roland Michael	President and CEO	FTAX	1,159.75	$944.68	$1.1M	-2.2%	Open the original filing on SEC.gov
Oct 22, 2025	Vachris Roland Michael	President and CEO	FTAX	1,493.05	$944.68	$1.4M	-2.7%	Open the original filing on SEC.gov
Oct 22, 2025	Vachris Roland Michael	President and CEO	AGRANT	13,834	—	—	+33.7%	Open the original filing on SEC.gov
Oct 22, 2025	Sullivan John Christophe…	Executive VP	FTAX	365.96	$944.68	$345.7K	-0.8%	Open the original filing on SEC.gov
Oct 22, 2025	Sullivan John Christophe…	Executive VP	FTAX	584.85	$944.68	$552.5K	-1.2%	Open the original filing on SEC.gov
Oct 22, 2025	Sullivan John Christophe…	Executive VP	FTAX	568.89	$944.68	$537.4K	-1.2%	Open the original filing on SEC.gov
Oct 22, 2025	Sullivan John Christophe…	Executive VP	FTAX	572.83	$944.68	$541.1K	-1.1%	Open the original filing on SEC.gov
Oct 22, 2025	Sullivan John Christophe…	Executive VP	FTAX	421.01	$944.68	$397.7K	-0.8%	Open the original filing on SEC.gov
Oct 22, 2025	Sullivan John Christophe…	Executive VP	AGRANT	4,654	—	—	+10.2%	Open the original filing on SEC.gov
Oct 22, 2025	Polit Javier	Executive Vice President	FTAX	336.61	$944.68	$318K	-2.6%	Open the original filing on SEC.gov
Oct 22, 2025	Polit Javier	Executive Vice President	FTAX	293.89	$944.68	$277.6K	-2.2%	Open the original filing on SEC.gov
Oct 22, 2025	Polit Javier	Executive Vice President	FTAX	537.78	$944.68	$508K	-3.9%	Open the original filing on SEC.gov
Oct 22, 2025	Polit Javier	Executive Vice President	AGRANT	4,219	—	—	+43.3%	Open the original filing on SEC.gov
Oct 22, 2025	Millerchip Gary	Executive Vice President	FTAX	500.32	$944.68	$472.6K	-2.9%	Open the original filing on SEC.gov
Oct 22, 2025	Millerchip Gary	Executive Vice President	FTAX	313.05	$944.68	$295.7K	-1.8%	Open the original filing on SEC.gov
Oct 22, 2025	Millerchip Gary	Executive Vice President	AGRANT	6,268	—	—	+56.1%	Open the original filing on SEC.gov
Oct 22, 2025	Klauer James C	Executive Vice President	FTAX	110.97	$944.68	$104.8K	-0.2%	Open the original filing on SEC.gov
Oct 22, 2025	Klauer James C	Executive Vice President	FTAX	177.06	$944.68	$167.3K	-0.4%	Open the original filing on SEC.gov
Oct 22, 2025	Klauer James C	Executive Vice President	FTAX	198.69	$944.68	$187.7K	-0.4%	Open the original filing on SEC.gov
Oct 22, 2025	Klauer James C	Executive Vice President	FTAX	190.68	$944.68	$180.1K	-0.4%	Open the original filing on SEC.gov
Oct 22, 2025	Klauer James C	Executive Vice President	FTAX	239.95	$944.68	$226.7K	-0.5%	Open the original filing on SEC.gov
Oct 22, 2025	Frates Caton	Executive Vice President	FTAX	705.75	$944.68	$666.7K	-9.8%	Open the original filing on SEC.gov
Oct 22, 2025	Frates Caton	Executive Vice President	FTAX	901.26	$944.68	$851.4K	-11.1%	Open the original filing on SEC.gov
Oct 22, 2025	Frates Caton	Executive Vice President	FTAX	758.28	$944.68	$716.3K	-8.5%	Open the original filing on SEC.gov
Oct 22, 2025	Frates Caton	Executive Vice President	FTAX	247.66	$944.68	$234K	-2.7%	Open the original filing on SEC.gov
Oct 22, 2025	Frates Caton	Executive Vice President	FTAX	155.74	$944.68	$147.1K	-1.7%	Open the original filing on SEC.gov
Oct 22, 2025	Callans Patrick J	Executive Vice President	FTAX	110.57	$944.68	$104.5K	-0.2%	Open the original filing on SEC.gov
Oct 22, 2025	Callans Patrick J	Executive Vice President	FTAX	176.66	$944.68	$166.9K	-0.3%	Open the original filing on SEC.gov
Oct 22, 2025	Callans Patrick J	Executive Vice President	FTAX	198.69	$944.68	$187.7K	-0.3%	Open the original filing on SEC.gov
Oct 22, 2025	Callans Patrick J	Executive Vice President	FTAX	191.08	$944.68	$180.5K	-0.3%	Open the original filing on SEC.gov
Oct 22, 2025	Callans Patrick J	Executive Vice President	FTAX	239.95	$944.68	$226.7K	-0.4%	Open the original filing on SEC.gov
Oct 22, 2025	Stanton John W	Director	AGRANT	286	—	—	+1.2%	Open the original filing on SEC.gov
Oct 22, 2025	Wilderotter Mary Agnes	Director	AGRANT	286	—	—	+9.8%	Open the original filing on SEC.gov
Oct 22, 2025	Raikes Jeffrey S	Director	AGRANT	286	—	—	+1.4%	Open the original filing on SEC.gov
Oct 22, 2025	Jewell Sarah Mr Sally	Director	AGRANT	286	—	—	+8.6%	Open the original filing on SEC.gov
Oct 22, 2025	James Hamilton E	Director	AGRANT	286	—	—	+0.5%	Open the original filing on SEC.gov
Oct 22, 2025	Foulkes Helena	Director	AGRANT	286	—	—	+35.7%	Open the original filing on SEC.gov
Oct 22, 2025	Denman Kenneth D	Director	AGRANT	286	—	—	+5.0%	Open the original filing on SEC.gov
Oct 22, 2025	Decker Susan L	Director	AGRANT	286	—	—	+2.5%	Open the original filing on SEC.gov
Oct 22, 2025	Barbre Tiffany Marie	Principal Accounting…	FTAX	84.6	$944.68	$79.9K	-1.3%	Open the original filing on SEC.gov
Oct 22, 2025	Barbre Tiffany Marie	Principal Accounting…	FTAX	135.4	$944.68	$127.9K	-2.1%	Open the original filing on SEC.gov
Oct 22, 2025	Barbre Tiffany Marie	Principal Accounting…	FTAX	118.56	$944.68	$112K	-1.8%	Open the original filing on SEC.gov
Oct 22, 2025	Barbre Tiffany Marie	Principal Accounting…	FTAX	90.23	$944.68	$85.2K	-1.3%	Open the original filing on SEC.gov
Oct 22, 2025	Barbre Tiffany Marie	Principal Accounting…	FTAX	113.53	$944.68	$107.2K	-1.6%	Open the original filing on SEC.gov
Oct 22, 2025	Barbre Tiffany Marie	Principal Accounting…	AGRANT	2,118	—	—	+44.0%	Open the original filing on SEC.gov
Oct 22, 2025	Adamo Claudine	Executive Vice President	FTAX	110.57	$944.68	$104.5K	-1.1%	Open the original filing on SEC.gov
Oct 22, 2025	Adamo Claudine	Executive Vice President	FTAX	176.66	$944.68	$166.9K	-1.8%	Open the original filing on SEC.gov
Oct 22, 2025	Adamo Claudine	Executive Vice President	FTAX	198.69	$944.68	$187.7K	-2.0%	Open the original filing on SEC.gov
Oct 22, 2025	Adamo Claudine	Executive Vice President	FTAX	96.94	$944.68	$91.6K	-1.0%	Open the original filing on SEC.gov
Oct 22, 2025	Adamo Claudine	Executive Vice President	FTAX	121.78	$944.68	$115K	-1.2%	Open the original filing on SEC.gov
Sep 29, 2025	Frates Caton	Executive Vice President	SSELL	1,540	$910.02	$1.4M	-14.2%	Open the original filing on SEC.gov
Sep 29, 2025	Miller Russell D	Sr. Executive Vice…	SSELL	3,381	$915.00	$3.1M	-25.8%	Open the original filing on SEC.gov
Sep 23, 2025	Miller Russell D	Sr. Executive Vice…	GGIFT	2,918	—	—	+28.6%	Open the original filing on SEC.gov
Sep 23, 2025	Miller Russell D	Sr. Executive Vice…	GGIFT	2,918	—	—	-99.9%	Open the original filing on SEC.gov
Sep 10, 2025	Rubanenko Yoram	Executive Vice President	FTAX	1,745.91	$956.29	$1.7M	-17.5%	Open the original filing on SEC.gov
Sep 10, 2025	Rubanenko Yoram	Executive Vice President	AGRANT	4,219	—	—	+73.1%	Open the original filing on SEC.gov
Sep 10, 2025	Riel Pierre	Executive Vice President	FTAX	1,608.36	$956.29	$1.5M	-12.5%	Open the original filing on SEC.gov
Sep 10, 2025	Riel Pierre	Executive Vice President	AGRANT	4,654	—	—	+56.7%	Open the original filing on SEC.gov
Sep 10, 2025	Miller Russell D	Sr. Executive Vice…	FTAX	1,735.09	$956.29	$1.7M	-37.3%	Open the original filing on SEC.gov
Sep 10, 2025	Miller Russell D	Sr. Executive Vice…	AGRANT	4,654	—	—	+460,792%	Open the original filing on SEC.gov
Sep 10, 2025	Klauer James C	Executive Vice President	FTAX	958.29	$956.29	$916.4K	-2.0%	Open the original filing on SEC.gov
Sep 10, 2025	Klauer James C	Executive Vice President	AGRANT	4,219	—	—	+9.6%	Open the original filing on SEC.gov
Sep 10, 2025	Jones Teresa A.	Executive Vice President	FTAX	1,503.32	$956.29	$1.4M	-22.8%	Open the original filing on SEC.gov
Sep 10, 2025	Jones Teresa A.	Executive Vice President	AGRANT	4,219	—	—	+178.6%	Open the original filing on SEC.gov
Sep 10, 2025	Frates Caton	Executive Vice President	FTAX	1,271.08	$956.29	$1.2M	-10.5%	Open the original filing on SEC.gov

FTAX$1.5M

Rubanenko Yoram · Executive Vice…Sep 10

1,695.95 sh @ $902.38 · -13.7% own

AGRANT—

Rubanenko Yoram · Executive Vice…Sep 10

4,129 sh · +50.1% own

FTAX$1.7M

Wilcox William Richard · Executive Vice…Sep 10

1,934.61 sh @ $902.38 · -31.6% own

AGRANT—

Wilcox William Richard · Executive Vice…Sep 10

4,129 sh · +206.4% own

FTAX$844.7K

Klauer James C · Executive Vice…Sep 10

936.12 sh @ $902.38 · -1.9% own

AGRANT—

Klauer James C · Executive Vice…Sep 10

4,129 sh · +9.2% own

FTAX$1.4M

Riel Pierre · Executive Vice…Sep 10

1,561.66 sh @ $902.38 · -9.9% own

AGRANT—

Riel Pierre · Executive Vice…Sep 10

4,552 sh · +40.4% own

FTAX$1.3M

Jones Teresa A. · Executive Vice…Sep 10

1,458.54 sh @ $902.38 · -18.1% own

AGRANT—

Jones Teresa A. · Executive Vice…Sep 10

4,129 sh · +105.1% own

FTAX$1.5M

Frates Caton · Executive Vice…Sep 10

1,654.36 sh @ $902.38 · -16.0% own

AGRANT—

Frates Caton · Executive Vice…Sep 10

4,552 sh · +78.3% own

FTAX$827.2K

Adamo Claudine · Executive Vice…Sep 10

916.69 sh @ $902.38 · -8.9% own

AGRANT—

Adamo Claudine · Executive Vice…Sep 10

4,129 sh · +67.5% own

GGIFT—

Raikes Jeffrey S · DirectorJul 10

5,249 sh · -46.5% own

SSELL$847.3K

Denman Kenneth D · DirectorJun 23

885 sh @ $957.45 · -15.6% own

SSELL$695.1K

Frates Caton · Executive Vice…Apr 1

700 sh @ $993.00 · -10.7% own

IDISCR$636.5K

George Sarah Catherine · Executive Vice…Mar 12

642.13 sh @ $991.21 · -100.0% own

FTAX$1.1M

Millerchip Gary · Executive Vice…Mar 11

1,154.02 sh @ $992.23 · -6.9% own

SSELL$732.2K

Adamo Claudine · Executive Vice…Mar 9

730 sh @ $1,003.02 · -10.7% own

GGIFT—

Raikes Jeffrey S · DirectorJan 27

5,115 sh · -31.2% own

GGIFT—

Jones Teresa A. · Executive Vice…Jan 27

300 sh · -7.1% own

SSELL$838.3K

Jones Teresa A. · Executive Vice…Jan 21

850 sh @ $986.26 · -16.7% own

SSELL$437.4K

Decker Susan L · DirectorJan 16

458 sh @ $955.00 · -5.1% own

AGRANT—

Raimondo Gina Marie · DirectorJan 16

215 sh

SSELL$1.4M

Klauer James C · Executive Vice…Jan 14

1,500 sh @ $939.00 · -3.2% own

SSELL$1.4M

Miller Russell D · Sr. Executive…Jan 9

1,500 sh @ $916.32 · -15.4% own

SSELL$481.8K

Polit Javier · Executive Vice…Dec 30, 2025

558.3 sh @ $862.90 · -5.2% own

SSELL$1.8M

Polit Javier · Executive Vice…Dec 29, 2025

2,049 sh @ $867.21 · -16.0% own

GGIFT—

Denman Kenneth D · DirectorDec 19, 2025

325 sh · -5.4% own

GGIFT—

Decker Susan L · DirectorDec 15, 2025

2,827 sh · -23.9% own

GGIFT—

Raikes Jeffrey S · DirectorNov 10, 2025

4,120 sh · -20.1% own

SSELL$2.2M

Wilcox William Richard · Executive Vice…Nov 7, 2025

2,400 sh @ $930.13 · -54.5% own

SSELL$1.2M

Barbre Tiffany Marie · Principal Accounti…Oct 24, 2025

1,239.38 sh @ $934.62 · -19.4% own

SSELL$2.5M

Adamo Claudine · Executive Vice…Oct 24, 2025

2,700 sh @ $935.68 · -28.3% own

FTAX$1.1M

Vachris Roland Michael · President and CEOOct 22, 2025

1,159.75 sh @ $944.68 · -2.2% own

FTAX$1.4M

Vachris Roland Michael · President and CEOOct 22, 2025

1,493.05 sh @ $944.68 · -2.7% own

AGRANT—

Vachris Roland Michael · President and CEOOct 22, 2025

13,834 sh · +33.7% own

FTAX$345.7K

Sullivan John Christophe… · Executive VPOct 22, 2025

365.96 sh @ $944.68 · -0.8% own

FTAX$552.5K

Sullivan John Christophe… · Executive VPOct 22, 2025

584.85 sh @ $944.68 · -1.2% own

FTAX$537.4K

Sullivan John Christophe… · Executive VPOct 22, 2025

568.89 sh @ $944.68 · -1.2% own

FTAX$541.1K

Sullivan John Christophe… · Executive VPOct 22, 2025

572.83 sh @ $944.68 · -1.1% own

FTAX$397.7K

Sullivan John Christophe… · Executive VPOct 22, 2025

421.01 sh @ $944.68 · -0.8% own

AGRANT—

Sullivan John Christophe… · Executive VPOct 22, 2025

4,654 sh · +10.2% own

FTAX$318K

Polit Javier · Executive Vice…Oct 22, 2025

336.61 sh @ $944.68 · -2.6% own

FTAX$277.6K

Polit Javier · Executive Vice…Oct 22, 2025

293.89 sh @ $944.68 · -2.2% own

FTAX$508K

Polit Javier · Executive Vice…Oct 22, 2025

537.78 sh @ $944.68 · -3.9% own

AGRANT—

Polit Javier · Executive Vice…Oct 22, 2025

4,219 sh · +43.3% own

FTAX$472.6K

Millerchip Gary · Executive Vice…Oct 22, 2025

500.32 sh @ $944.68 · -2.9% own

FTAX$295.7K

Millerchip Gary · Executive Vice…Oct 22, 2025

313.05 sh @ $944.68 · -1.8% own

AGRANT—

Millerchip Gary · Executive Vice…Oct 22, 2025

6,268 sh · +56.1% own

FTAX$104.8K

Klauer James C · Executive Vice…Oct 22, 2025

110.97 sh @ $944.68 · -0.2% own

FTAX$167.3K

Klauer James C · Executive Vice…Oct 22, 2025

177.06 sh @ $944.68 · -0.4% own

FTAX$187.7K

Klauer James C · Executive Vice…Oct 22, 2025

198.69 sh @ $944.68 · -0.4% own

FTAX$180.1K

Klauer James C · Executive Vice…Oct 22, 2025

190.68 sh @ $944.68 · -0.4% own

FTAX$226.7K

Klauer James C · Executive Vice…Oct 22, 2025

239.95 sh @ $944.68 · -0.5% own

FTAX$666.7K