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
≡ Bill Nygren - Oakmark Funds Reduce 44.82% 294 0.00
≡ Christopher Bloomstran - Semper Augustus Reduce 2.32% 80 0.01
≡ David Katz - Matrix Asset Advisors Reduce 0.71% 4 0.00
≡ Francois Rochon - Giverny Capital Sell 100.00% 240 0.01
≡ Lee Ainslie - Maverick Capital Sell 100.00% 2,894 0.03
Q4  2025
≡ Mairs & Power Funds Reduce 8.94% 288 0.00
≡ David Katz - Matrix Asset Advisors Reduce 0.18% 1 0.00
Q3  2025
≡ Christopher Bloomstran - Semper Augustus Reduce 8.84% 333 0.04
≡ David Katz - Matrix Asset Advisors Reduce 1.57% 9 0.00
≡ Torray Funds Reduce 1.26% 8 0.00
≡ Thomas Russo - Gardner Russo & Quinn Reduce 0.19% 9 0.00
Q2  2025
≡ Christopher Bloomstran - Semper Augustus Reduce 11.24% 477 0.07
≡ Torray Funds Reduce 1.09% 7 0.00
≡ Thomas Russo - Gardner Russo & Quinn Reduce 0.09% 4 0.00
≡ Lee Ainslie - Maverick Capital Sell 100.00% 11,415 0.19
Q1  2025
≡ David Katz - Matrix Asset Advisors Reduce 35.91% 321 0.03
≡ Thomas Russo - Gardner Russo & Quinn Reduce 14.08% 760 0.01
≡ Christopher Bloomstran - Semper Augustus Reduce 2.41% 105 0.02
≡ Mairs & Power Funds Reduce 1.42% 39 0.00
Q4  2024
≡ Mairs & Power Funds Reduce 11.56% 358 0.00
≡ Thomas Russo - Gardner Russo & Quinn Reduce 0.46% 25 0.00
Q3  2024
≡ Mairs & Power Funds Reduce 17.06% 637 0.01
≡ Torray Funds Reduce 2.28% 15 0.00
≡ Thomas Russo - Gardner Russo & Quinn Reduce 1.00% 55 0.00
Q2  2024
≡ Mairs & Power Funds Reduce 18.45% 845 0.01
≡ Torray Funds Reduce 0.60% 4 0.00
≡ Christopher Bloomstran - Semper Augustus Reduce 0.57% 25 0.00
≡ David Katz - Matrix Asset Advisors Reduce 0.55% 3 0.00
≡ Lee Ainslie - Maverick Capital Sell 100.00% 1,557 0.02
Q1  2024
≡ Torray Funds Reduce 23.20% 200 0.02
≡ Thomas Russo - Gardner Russo & Quinn Reduce 1.32% 73 0.00
Q4  2023
≡ David Katz - Matrix Asset Advisors Reduce 1.80% 10 0.00
Q3  2023
≡ Christopher Bloomstran - Semper Augustus Reduce 4.51% 188 0.03
≡ Thomas Russo - Gardner Russo & Quinn Reduce 1.63% 85 0.00
≡ Lee Ainslie - Maverick Capital Sell 100.00% 10,203 0.12
Q2  2023
≡ Christopher Bloomstran - Semper Augustus Reduce 2.27% 97 0.01
Q1  2023
≡ Christopher Bloomstran - Semper Augustus Reduce 14.09% 700 0.09
≡ Thomas Russo - Gardner Russo & Quinn Reduce 4.77% 257 0.00
≡ Torray Funds Reduce 1.19% 8 0.00
≡ Francois Rochon - Giverny Capital Sell 100.00% 350 0.01
Q4  2022
≡ Christopher Bloomstran - Semper Augustus Reduce 2.93% 150 0.02
Q3  2022
≡ Thomas Russo - Gardner Russo & Quinn Reduce 3.58% 200 0.00
≡ Lee Ainslie - Maverick Capital Sell 100.00% 10,963 0.13
Q2  2022
≡ Thomas Russo - Gardner Russo & Quinn Reduce 2.61% 150 0.00
≡ Christopher Bloomstran - Semper Augustus Reduce 0.91% 47 0.01
Q1  2022
≡ Christopher Bloomstran - Semper Augustus Reduce 6.07% 334 0.05
Q4  2021
≡ Christopher Bloomstran - Semper Augustus Reduce 0.13% 7 0.00
Q3  2021
≡ Christopher Bloomstran - Semper Augustus Reduce 18.41% 1,243 0.18
Q2  2021
≡ Thomas Russo - Gardner Russo & Quinn Reduce 2.38% 126 0.00
≡ Christopher Bloomstran - Semper Augustus Reduce 0.15% 10 0.00
Q1  2021
≡ Thomas Russo - Gardner Russo & Quinn Reduce 1.87% 101 0.00
Q4  2020
≡ Christopher Bloomstran - Semper Augustus Reduce 60.78% 10,478 1.72
≡ Lee Ainslie - Maverick Capital Sell 100.00% 76 0.00
Q3  2020
≡ Christopher Bloomstran - Semper Augustus Reduce 10.04% 1,923 0.35
≡ Thomas Russo - Gardner Russo & Quinn Reduce 0.48% 26 0.00
≡ Warren Buffett - Berkshire Hathaway Sell 100.00% 4,333,363 0.65
Q2  2020
≡ Christopher Bloomstran - Semper Augustus Reduce 0.80% 155 0.03
≡ Lee Ainslie - Maverick Capital Sell 100.00% 12,544 0.08
Q1  2020
≡ Lee Ainslie - Maverick Capital Reduce 85.46% 73,700 0.47
≡ Thomas Russo - Gardner Russo & Quinn Reduce 2.63% 136 0.00
≡ Christopher Bloomstran - Semper Augustus Reduce 0.02% 3 0.00
Q4  2019
≡ Christopher Bloomstran - Semper Augustus Reduce 1.53% 300 0.05
≡ Thomas Russo - Gardner Russo & Quinn Reduce 0.10% 5 0.00
Q2  2019
≡ Thomas Russo - Gardner Russo & Quinn Reduce 2.58% 135 0.00
Q4  2018
≡ Christopher Bloomstran - Semper Augustus Reduce 1.51% 300 0.04
Q3  2018
≡ Thomas Russo - Gardner Russo & Quinn Reduce 4.49% 246 0.00
Q3  2017
≡ Thomas Russo - Gardner Russo & Quinn Reduce 19.95% 1,325 0.00
Q1  2017
≡ Thomas Russo - Gardner Russo & Quinn Reduce 0.08% 5 0.00
Q1  2016
≡ Lee Ainslie - Maverick Capital Sell 100.00% 1,610 0.00
Q4  2015
≡ Lee Ainslie - Maverick Capital Reduce 8.52% 150 0.00
Q2  2014
≡ Thomas Russo - Gardner Russo & Quinn Reduce 17.51% 1,200 0.00
Q1  2014
≡ Thomas Gayner - Markel Group Reduce 0.76% 300 0.00
Q4  2013
≡ Thomas Gayner - Markel Group Reduce 1.01% 400 0.00
Q3  2013
≡ Thomas Gayner - Markel Group Reduce 1.49% 600 0.00
Q2  2013
≡ Thomas Gayner - Markel Group Reduce 0.49% 200 0.00
Q4  2012
≡ Thomas Russo - Gardner Russo & Quinn Reduce 4.87% 300 0.00
≡ Bill & Melinda Gates Foundation Trust Sell 100.00% 6,128,000 3.54
Q3  2012
≡ Thomas Russo - Gardner Russo & Quinn Reduce 63.48% 10,700 0.02
Q2  2012
≡ Thomas Russo - Gardner Russo & Quinn Reduce 1.17% 200 0.00
Q1  2012
≡ Thomas Russo - Gardner Russo & Quinn Reduce 2.29% 400 0.00
Q4  2011
≡ Thomas Russo - Gardner Russo & Quinn Reduce 27.75% 6,705 0.01
Q3  2011
≡ Thomas Russo - Gardner Russo & Quinn Reduce 6.28% 1,620 0.00
Q3  2010
≡ Thomas Russo - Gardner Russo & Quinn Reduce 3.26% 870 0.00
≡ Thomas Gayner - Markel Group Reduce 0.86% 350 0.00
Q1  2010
≡ Warren Buffett - Berkshire Hathaway Reduce 17.52% 920,637 0.11
Q1  2009
≡ Thomas Russo - Gardner Russo & Quinn Reduce 9.91% 1,050 0.00

* "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.