Costco Co. (COST)

Sector:Consumer Staples
Super Investor Stats:
Ownership count:7
Ownership rank:82
% of all portfolios:0.012%
Hold Price * :$996.46
History Portfolio Manager Activity ▲ Share change % change to portfolio
Q1  2026
≡ Mairs & Power Funds Add 1.02% 30 0.00
Q4  2025
≡ Christopher Bloomstran - Semper Augustus Add 0.35% 12 0.00
≡ Bill Nygren - Oakmark Funds Add 12.91% 75 0.00
≡ Lee Ainslie - Maverick Capital Buy 2,894 0.03
Q3  2025
≡ Mairs & Power Funds Add 1.04% 33 0.00
Q2  2025
≡ Mairs & Power Funds Add 18.07% 488 0.00
≡ Bill Nygren - Oakmark Funds Buy 581 0.00
Q1  2025
≡ Lee Ainslie - Maverick Capital Add 374.64% 9,010 0.15
Q4  2024
≡ Christopher Bloomstran - Semper Augustus Add 0.46% 20 0.00
≡ David Katz - Matrix Asset Advisors Add 64.34% 350 0.04
≡ Lee Ainslie - Maverick Capital Add 774.55% 2,130 0.04
Q3  2024
≡ Lee Ainslie - Maverick Capital Buy 275 0.00
≡ Francois Rochon - Giverny Capital Buy 240 0.01
Q1  2024
≡ Christopher Bloomstran - Semper Augustus Add 0.32% 14 0.00
≡ Lee Ainslie - Maverick Capital Buy 1,557 0.02
Q4  2023
≡ Thomas Russo - Gardner Russo & Quinn Add 7.91% 407 0.00
≡ Christopher Bloomstran - Semper Augustus Add 8.96% 357 0.05
Q3  2023
≡ David Katz - Matrix Asset Advisors Add 0.18% 1 0.00
≡ Torray Funds Add 30.21% 200 0.02
Q2  2023
≡ Thomas Russo - Gardner Russo & Quinn Add 1.87% 96 0.00
≡ Lee Ainslie - Maverick Capital Buy 10,203 0.12
Q1  2023
≡ David Katz - Matrix Asset Advisors Buy 556 0.04
Q3  2022
≡ Torray Funds Buy 670 0.06
Q2  2022
≡ Lee Ainslie - Maverick Capital Add 28.96% 2,462 0.03
Q1  2022
≡ Thomas Russo - Gardner Russo & Quinn Add 9.02% 475 0.00
≡ Francois Rochon - Giverny Capital Buy 350 0.01
≡ Lee Ainslie - Maverick Capital Buy 8,501 0.09
Q3  2021
≡ Thomas Russo - Gardner Russo & Quinn Add 1.86% 96 0.00
Q4  2020
≡ Thomas Russo - Gardner Russo & Quinn Add 0.04% 2 0.00
Q3  2020
≡ Lee Ainslie - Maverick Capital Buy 76 0.00
Q2  2020
≡ Thomas Russo - Gardner Russo & Quinn Add 7.76% 390 0.00
Q4  2019
≡ Lee Ainslie - Maverick Capital Add 428.91% 69,938 0.30
Q3  2019
≡ Christopher Bloomstran - Semper Augustus Add 0.46% 89 0.01
≡ Thomas Russo - Gardner Russo & Quinn Add 1.53% 78 0.00
≡ Lee Ainslie - Maverick Capital Buy 16,306 0.07
Q2  2019
≡ Christopher Bloomstran - Semper Augustus Add 0.07% 14 0.00
≡ Thomas Gayner - Markel Group Add 0.38% 150 0.00
Q1  2018
≡ Thomas Russo - Gardner Russo & Quinn Add 2.91% 155 0.00
Q4  2016
≡ Thomas Russo - Gardner Russo & Quinn Add 2.03% 132 0.00
Q2  2016
≡ Thomas Russo - Gardner Russo & Quinn Add 1.96% 125 0.00
Q1  2016
≡ Thomas Russo - Gardner Russo & Quinn Add 1.53% 96 0.00
Q3  2015
≡ Thomas Russo - Gardner Russo & Quinn Add 11.32% 640 0.00
Q1  2015
≡ Lee Ainslie - Maverick Capital Buy 1,760 0.00
Q1  2014
≡ Thomas Russo - Gardner Russo & Quinn Add 17.08% 1,000 0.00
Q2  2010
≡ Thomas Russo - Gardner Russo & Quinn Add 1.91% 500 0.00
≡ Thomas Gayner - Markel Group Add 17.22% 6,000 0.02
Q1  2010
≡ Thomas Russo - Gardner Russo & Quinn Add 3.26% 825 0.00
≡ Thomas Gayner - Markel Group Add 77.35% 15,200 0.06
Q4  2009
≡ Thomas Russo - Gardner Russo & Quinn Add 32.77% 6,250 0.02
≡ Thomas Gayner - Markel Group Add 34.13% 5,000 0.02
Q3  2009
≡ Thomas Russo - Gardner Russo & Quinn Add 6.86% 1,225 0.00
≡ Thomas Gayner - Markel Group Add 25.75% 3,000 0.01
Q2  2009
≡ Thomas Russo - Gardner Russo & Quinn Add 86.91% 8,300 0.02
Q1  2009
≡ Thomas Gayner - Markel Group Add 2.64% 300 0.00
Q4  2008
≡ Bill & Melinda Gates Foundation Trust Add 8.88% 500,000 0.29
Q3  2008
≡ Bill & Melinda Gates Foundation Trust Add 9.75% 500,000 0.29
≡ Thomas Gayner - Markel Group Add 78.74% 5,000 0.02
Q2  2008
≡ Thomas Gayner - Markel Group Buy 6,350 0.03
Q4  2007
≡ Bill & Melinda Gates Foundation Trust Add 5.13% 250,000 0.17

* "Hold Price" is the last known price at which an investor still held a security. It is the closing price of the security as of the portfolio date (quarter end). This value is only provided when a security is owned by at least two investors. In the case of reporting dates being different, a weighted average price is calculated.