Costco Wholesale Corp (COST)

In the past 90 days, Costco Wholesale Corp has seen four insider selling transactions totaling approximately $5.98 million, with all transactions executed by executives. Notably, the largest sale was by President and CEO Roland Michael Vachris, who sold 3,600 shares for about $3.35 million on March 11, 2025. The company's stock has increased by 5.1% over the same period, despite a slight earnings miss of 2.13% reported on March 6, 2025. The next earnings report is scheduled for January 23, 2026.

Consumer Cyclicals Retailers Diversified Retail

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Ticker: COST Exchange: NSM

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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Earnings

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Past 90 days

Net insiders buying

Past 90 days

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Past 90 days

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Abbreviations B: Buy, S: Sell, PP: Planned purchase, PS: Planned sale, O: Option / Other

Notification date	Transaction date	B/S Transaction type	Insider and/or position	Nb. shares Price Value	Number of shares	Price	Value
2025-03-27	2025-03-27	S Sale	MILLERCHIP GARY Executive Vice President Officer	1,100 -9.0% 940.01 USD 1,034,007	1,100 -9.0%	940.01	USD 1,034,007
2025-03-25	2025-03-24	S Sale	Adamo Claudine Executive Vice President Officer	900 -11.4% 922.56 USD 830,304	900 -11.4%	922.56	USD 830,304
2025-03-20	2025-03-18	S Sale	Frates Caton Executive Vice President Officer	850 -9.7% 900.25 USD 765,213	850 -9.7%	900.25	USD 765,213
2025-03-13	2025-03-11	S Sale	Vachris Roland Michael President and CEO Executive Director	3,600 -8.1% 931.00 USD 3,351,600	3,600 -8.1%	931.00	USD 3,351,600
2024-10-24	2024-10-24	S Sale	GALANTI RICHARD A Executive Vice President Executive Director	1,416 -4.9% 894.68 USD 1,267,280	1,416 -4.9%	894.68	USD 1,267,280
2024-10-24	2024-10-23	S Sale	Jones Teresa A. Executive Vice President Officer	800 -21.3% 896.55 USD 717,236	800 -21.3%	896.55	USD 717,236
2024-10-15	2024-10-15	S Sale	Riel Pierre Executive Vice President Officer	2,000 -16.4% 896.71 USD 1,793,426	2,000 -16.4%	896.71	USD 1,793,426
2024-10-15	2024-10-11	S Sale	Miller Russell D Sr. Executive Vice President Officer	4,400 -30.1% 891.15 USD 3,921,069	4,400 -30.1%	891.15	USD 3,921,069
2024-10-02	2024-09-30	S Sale	Adamo Claudine Executive Vice President Officer	3,200 -27.1% 888.99 USD 2,844,778	3,200 -27.1%	888.99	USD 2,844,778
2024-10-02	2024-09-30	S Sale	Frates Caton Executive Vice President Officer	1,700 -14.9% 883.35 USD 1,501,695	1,700 -14.9%	883.35	USD 1,501,695
2024-10-02	2024-09-30	S Sale	Callans Patrick J Executive Vice President Officer	2,500 -3.6% 893.94 USD 2,234,850	2,500 -3.6%	893.94	USD 2,234,850
2024-08-15	2024-08-15	S Sale	GALANTI RICHARD A Executive Vice President Executive Director	500 -2.1% 874.05 USD 437,025	500 -2.1%	874.05	USD 437,025
2024-08-15	2024-08-15	S Sale	DECKER SUSAN L Non-Executive Director	620 -5.0% 876.50 USD 543,430	620 -5.0%	876.50	USD 543,430
2024-08-15	2024-08-13	S Sale	GALANTI RICHARD A Executive Vice President Executive Director	500 -2.1% 863.88 USD 431,938	500 -2.1%	863.88	USD 431,938
2024-08-29	2024-07-25	S Sale	Jones Teresa A. Executive Vice President Officer	4 -0.1% 832.55 USD 3,330	4 -0.1%	832.55	USD 3,330
2024-07-15	2024-07-15	S Sale	DENMAN KENNETH D Non-Executive Director	350 -5.6% 851.53 USD 298,036	350 -5.6%	851.53	USD 298,036
2024-07-15	2024-07-15	S Sale	Hines Daniel M. Principal Acctg Officer	1,500 -12.0% 848.53 USD 1,272,796	1,500 -12.0%	848.53	USD 1,272,796
2024-07-15	2024-07-12	S Sale	Hines Daniel M. Principal Acctg Officer	1,500 -10.7% 844.20 USD 1,266,300	1,500 -10.7%	844.20	USD 1,266,300
2024-04-18	2024-04-17	S Sale	Miller Russell D Senior EVP Officer	785 -7.3% 722.86 USD 567,443	785 -7.3%	722.86	USD 567,443
2024-03-13	2024-03-11	S Sale	Adamo Claudine Executive Vice President Officer	1,500 -18.3% 714.83 USD 1,072,238	1,500 -18.3%	714.83	USD 1,072,238
2024-03-13	2024-03-11	S Sale	Callans Patrick J Executive VP Officer	2,500 -3.8% 714.86 USD 1,787,150	2,500 -3.8%	714.86	USD 1,787,150
2024-02-12	2024-02-09	S Sale	DECKER SUSAN L Non-Executive Director	1,442 -10.4% 723.48 USD 1,043,257	1,442 -10.4%	723.48	USD 1,043,257
2024-01-23	2024-01-23	S Sale	JELINEK W CRAIG Non-Executive Director	8,000 -3.6% 685.93 USD 5,487,456	8,000 -3.6%	685.93	USD 5,487,456
2024-01-18	2024-01-18	S Sale	Rubanenko Yoram Executive VP Officer	2,500 -29.7% 680.33 USD 1,700,813	2,500 -29.7%	680.33	USD 1,700,813
2024-01-16	2024-01-16	S Sale	Frates Caton Executive Vice President Officer	740 -9.9% 683.50 USD 505,789	740 -9.9%	683.50	USD 505,789
2024-01-10	2024-01-09	S Sale	Hines Daniel M. Principal Acctg Officer	1,400 -9.1% 662.30 USD 927,220	1,400 -9.1%	662.30	USD 927,220
2024-01-02	2023-12-28	S Sale	Hines Daniel M. Principal Acctg Officer	1,400 -8.4% 662.81 USD 927,934	1,400 -8.4%	662.81	USD 927,934
2023-12-20	2023-12-19	S Sale	GALANTI RICHARD A Executive VP and CFO Executive Director	1,112 -4.4% 680.21 USD 756,248	1,112 -4.4%	680.21	USD 756,248
2023-11-13	2023-11-08	S Sale	GALANTI RICHARD A Executive VP and CFO Executive Director	1,000 -3.8% 567.30 USD 567,299	1,000 -3.8%	567.30	USD 567,299
2023-11-13	2023-11-08	S Sale	GALANTI RICHARD A Executive VP and CFO Executive Director	1,000 -3.6% 564.88 USD 564,880	1,000 -3.6%	564.88	USD 564,880
2023-11-08	2023-11-07	S Sale	Riel Pierre EVP Officer	3,000 -28.8% 571.12 USD 1,713,345	3,000 -28.8%	571.12	USD 1,713,345
2023-11-06	2023-11-03	S Sale	Miller Russell D Senior EVP Officer	4,500 -29.4% 557.75 USD 2,509,864	4,500 -29.4%	557.75	USD 2,509,864
2023-10-24	2023-10-23	S Sale	Adamo Claudine Executive Vice President Officer	2,565 -24.0% 548.92 USD 1,407,980	2,565 -24.0%	548.92	USD 1,407,980
2023-10-12	2023-10-11	S Sale	Klauer James C Executive Vice President Officer	1,500 -3.2% 562.01 USD 843,017	1,500 -3.2%	562.01	USD 843,017
2023-10-12	2023-10-10	S Sale	GALANTI RICHARD A Executive VP and CFO Executive Director	2,000 -6.6% 565.57 USD 1,131,131	2,000 -6.6%	565.57	USD 1,131,131
2023-10-11	2023-10-09	S Sale	Callans Patrick J Executive VP Officer	2,500 -3.5% 553.76 USD 1,384,400	2,500 -3.5%	553.76	USD 1,384,400
2023-10-11	2023-10-06	S Sale	Frates Caton Executive Vice President Officer	1,200 -12.5% 562.64 USD 675,170	1,200 -12.5%	562.64	USD 675,170
2023-06-29	2023-06-28	S Sale	DECKER SUSAN L Non-Executive Director	1,565 -10.5% 533.00 USD 834,145	1,565 -10.5%	533.00	USD 834,145
2023-06-15	2023-06-13	S Sale	GALANTI RICHARD A Executive VP and CFO Executive Director	1,500 -5.9% 522.03 USD 783,038	1,500 -5.9%	522.03	USD 783,038
2023-06-09	2023-06-07	S Sale	DECKER SUSAN L Non-Executive Director	1,445 -8.8% 517.50 USD 747,788	1,445 -8.8%	517.50	USD 747,788
2023-06-09	2023-06-07	S Sale	DECKER SUSAN L Non-Executive Director	519 -3.1% 513.00 USD 266,247	519 -3.1%	513.00	USD 266,247
2023-06-09	2023-06-07	S Sale	DECKER SUSAN L Non-Executive Director	2,007 -10.6% 512.02 USD 1,027,624	2,007 -10.6%	512.02	USD 1,027,624
2023-04-13	2023-04-11	S Sale	Frates Caton Executive Vice President Officer	600 -12.2% 497.35 USD 298,408	600 -12.2%	497.35	USD 298,408
2023-03-15	2023-03-14	S Sale	GALANTI RICHARD A Executive VP and CFO Executive Director	2,068 -7.5% 483.32 USD 999,506	2,068 -7.5%	483.32	USD 999,506
2023-03-08	2023-03-07	S Sale	Miller Russell D Senior EVP Officer	1,500 -12.9% 488.95 USD 733,430	1,500 -12.9%	488.95	USD 733,430
2023-03-07	2023-03-06	S Sale	Vachris Roland Michael President and COO Executive Director	4,100 -18.5% 476.29 USD 1,952,798	4,100 -18.5%	476.29	USD 1,952,798
2023-01-31	2023-01-27	S Sale	Klauer James C Executive Vice President Officer	2,500 -5.8% 503.69 USD 1,259,225	2,500 -5.8%	503.69	USD 1,259,225
2022-12-13	2022-12-12	S Sale	DECKER SUSAN L Non-Executive Director	952 -4.8% 483.00 USD 459,816	952 -4.8%	483.00	USD 459,816
2022-11-04	2022-11-04	S Sale	Miller Russell D Executive Vice President Officer	1,000 -7.9% 483.58 USD 483,578	1,000 -7.9%	483.58	USD 483,578
2022-10-27	2022-10-26	S Sale	Adamo Claudine Executive Vice President Officer	2,000 -26.0% 495.97 USD 991,947	2,000 -26.0%	495.97	USD 991,947
2022-10-26	2022-10-25	S Sale	GALANTI RICHARD A Executive VP and CFO Executive Director	1,500 -5.1% 477.65 USD 716,470	1,500 -5.1%	477.65	USD 716,470
2022-10-07	2022-10-07	S Sale	GALANTI RICHARD A Executive VP and CFO Executive Director	2,000 -6.4% 471.12 USD 942,246	2,000 -6.4%	471.12	USD 942,246
2022-07-21	2022-07-20	S Sale	Murphy James P. Executive VP Officer	1,500 -4.0% 525.20 USD 787,798	1,500 -4.0%	525.20	USD 787,798
2022-07-15	2022-07-15	S Sale	DENMAN KENNETH D Non-Executive Director	300 -5.5% 521.68 USD 156,503	300 -5.5%	521.68	USD 156,503
2022-07-15	2022-07-14	S Sale	GALANTI RICHARD A Executive VP and CFO Executive Director	1,000 -3.7% 505.60 USD 505,597	1,000 -3.7%	505.60	USD 505,597
2022-06-23	2022-06-22	S Sale	Murphy James P. Executive VP Officer	2,500 -6.2% 464.00 USD 1,160,000	2,500 -6.2%	464.00	USD 1,160,000
2022-06-08	2022-06-07	B Purchase	Wilderotter Mary Agnes Non-Executive Director	850 +8.1% 470.74 USD 400,125	850 +8.1%	470.74	USD 400,125
2022-04-08	2022-04-08	S Sale	Hines Daniel M. Principal Acctg Officer	4,498 -25.5% 603.00 USD 2,712,301	4,498 -25.5%	603.00	USD 2,712,301
2022-04-08	2022-04-08	S Sale	Adamo Claudine Executive Vice President Officer	500 -4.8% 602.03 USD 301,015	500 -4.8%	602.03	USD 301,015
2022-03-29	2022-03-29	S Sale	Rose Timothy L. Executive VP Officer	4,000 -12.3% 566.29 USD 2,265,145	4,000 -12.3%	566.29	USD 2,265,145
2022-03-24	2022-03-23	S Sale	DENMAN KENNETH D Non-Executive Director	250 -4.4% 554.68 USD 138,669	250 -4.4%	554.68	USD 138,669
2022-01-28	2022-01-27	S Sale	Vachris Roland Michael Executive VP Officer	3,318 -18.5% 492.45 USD 1,633,934	3,318 -18.5%	492.45	USD 1,633,934
2021-12-22	2021-12-21	B Purchase	Wilderotter Mary Agnes Non-Executive Director	925 +9.7% 540.13 USD 499,620	925 +9.7%	540.13	USD 499,620
2021-12-15	2021-12-15	S Sale	GALANTI RICHARD A Executive VP and CFO Executive Director	1,618 -5.7% 550.59 USD 890,852	1,618 -5.7%	550.59	USD 890,852
2021-12-15	2021-12-15	S Sale	GALANTI RICHARD A Executive VP and CFO Executive Director	600 -2.1% 563.52 USD 338,113	600 -2.1%	563.52	USD 338,113
2021-12-14	2021-12-13	S Sale	Miller Russell D Executive Vice President Officer	4,000 -33.2% 556.02 USD 2,224,090	4,000 -33.2%	556.02	USD 2,224,090
2021-12-14	2021-12-13	S Sale	Murphy James P. Executive VP Officer	5,000 -11.0% 559.32 USD 2,796,616	5,000 -11.0%	559.32	USD 2,796,616
2021-12-14	2021-12-13	S Sale	Rubananko Yoram Executive VP Officer	4,000 -37.8% 550.72 USD 2,202,884	4,000 -37.8%	550.72	USD 2,202,884
2021-12-14	2021-12-13	S Sale	Callans Patrick J Executive VP Officer	2,500 -4.0% 549.03 USD 1,372,575	2,500 -4.0%	549.03	USD 1,372,575
2021-07-12	2021-07-12	S Sale	Vachris Roland Michael Executive VP Officer	4,000 -25.6% 409.40 USD 1,637,611	4,000 -25.6%	409.40	USD 1,637,611
2021-06-29	2021-06-28	S Sale	Rose Timothy L. Executive VP Officer	4,000 -13.1% 396.14 USD 1,584,560	4,000 -13.1%	396.14	USD 1,584,560
2021-06-14	2021-06-14	S Sale	Klauer James C Executive Vice President Officer	5,000 -8.8% 380.53 USD 1,902,650	5,000 -8.8%	380.53	USD 1,902,650
2021-06-08	2021-06-07	S Sale	Callans Patrick J Executive VP Officer	2,500 -4.2% 384.31 USD 960,775	2,500 -4.2%	384.31	USD 960,775
2021-04-30	2021-04-29	S Sale	GALANTI RICHARD A Executive VP and CFO Executive Director	2,230 -8.9% 372.06 USD 829,684	2,230 -8.9%	372.06	USD 829,684
2021-03-23	2021-03-22	S Sale	Vachris Roland Michael Executive VP Officer	4,300 -21.6% 334.30 USD 1,437,477	4,300 -21.6%	334.30	USD 1,437,477

Costco Wholesale Corp (COST)

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