Q4  2024 |
≡ |
Chase Coleman - Tiger Global Management |
Add 9.16% |
225,000 |
0.08 |
≡ |
Ruane Cunniff - Sequoia Fund |
Reduce 0.09% |
2,431 |
0.01 |
≡ |
Warren Buffett - Berkshire Hathaway |
Reduce 11.93% |
921,091 |
0.03 |
≡ |
Francois Rochon - Giverny Capital |
Sell 100.00% |
15,000 |
0.04 |
Q3  2024 |
≡ |
Chase Coleman - Tiger Global Management |
Add 3.93% |
93,000 |
0.03 |
≡ |
Francois Rochon - Giverny Capital |
Buy |
15,000 |
0.04 |
Q1  2024 |
≡ |
Chase Coleman - Tiger Global Management |
Buy |
2,364,000 |
0.85 |
≡ |
Christopher Davis - Davis Advisors |
Sell 100.00% |
257,802 |
0.09 |
Q4  2023 |
≡ |
Christopher Davis - Davis Advisors |
Reduce 2.80% |
7,428 |
0.00 |
Q3  2023 |
≡ |
Christopher Davis - Davis Advisors |
Reduce 0.96% |
2,578 |
0.00 |
≡ |
Ruane Cunniff - Sequoia Fund |
Reduce 2.70% |
76,312 |
0.17 |
Q2  2023 |
≡ |
Christopher Davis - Davis Advisors |
Reduce 1.94% |
5,298 |
0.00 |
Q1  2023 |
≡ |
Christopher Davis - Davis Advisors |
Reduce 1.49% |
4,121 |
0.00 |
≡ |
Ruane Cunniff - Sequoia Fund |
Reduce 16.99% |
577,564 |
1.46 |
Q4  2022 |
≡ |
Christopher Davis - Davis Advisors |
Reduce 4.83% |
14,075 |
0.01 |
≡ |
Ruane Cunniff - Sequoia Fund |
Reduce 6.04% |
218,437 |
0.45 |
Q3  2022 |
≡ |
Christopher Davis - Davis Advisors |
Reduce 36.71% |
168,976 |
0.07 |
Q2  2022 |
≡ |
Christopher Davis - Davis Advisors |
Reduce 36.67% |
266,489 |
0.11 |
Q1  2022 |
≡ |
Warren Buffett - Berkshire Hathaway |
Add 264.48% |
5,603,705 |
0.11 |
≡ |
Ruane Cunniff - Sequoia Fund |
Reduce 4.40% |
166,729 |
0.29 |
≡ |
Christopher Davis - Davis Advisors |
Reduce 5.02% |
38,381 |
0.01 |
Q4  2021 |
≡ |
Warren Buffett - Berkshire Hathaway |
Buy |
2,118,746 |
0.04 |
≡ |
Ruane Cunniff - Sequoia Fund |
Reduce 1.23% |
47,321 |
0.06 |
≡ |
Christopher Davis - Davis Advisors |
Reduce 3.09% |
24,398 |
0.01 |
Q3  2021 |
≡ |
Christopher Davis - Davis Advisors |
Reduce 0.92% |
7,352 |
0.00 |
Q2  2021 |
≡ |
Christopher Davis - Davis Advisors |
Add 2.23% |
17,356 |
0.00 |
Q1  2021 |
≡ |
Christopher Davis - Davis Advisors |
Buy |
779,542 |
0.15 |
Q4  2020 |
≡ |
Viking Global Investors |
Sell 100.00% |
1,427,000 |
0.19 |
Q3  2020 |
≡ |
Ruane Cunniff - Sequoia Fund |
Add 4.62% |
169,319 |
0.16 |
≡ |
Viking Global Investors |
Reduce 25.81% |
496,501 |
0.07 |
≡ |
Francois Rochon - Giverny Capital |
Sell 100.00% |
12,274 |
0.04 |
≡ |
Lee Ainslie - Maverick Capital |
Sell 100.00% |
37,322 |
0.02 |
Q2  2020 |
≡ |
Francois Rochon - Giverny Capital |
Add 15.47% |
1,644 |
0.01 |
≡ |
Ruane Cunniff - Sequoia Fund |
Add 2.41% |
86,158 |
0.08 |
≡ |
Lee Ainslie - Maverick Capital |
Buy |
37,322 |
0.02 |
≡ |
Thomas Gayner - Markel Group |
Sell 100.00% |
259,500 |
0.13 |
Q1  2020 |
≡ |
Ruane Cunniff - Sequoia Fund |
Reduce 3.32% |
122,667 |
0.11 |
≡ |
Viking Global Investors |
Reduce 77.71% |
6,705,430 |
0.94 |
Q4  2019 |
≡ |
Viking Global Investors |
Reduce 13.70% |
1,369,760 |
0.30 |
≡ |
Ruane Cunniff - Sequoia Fund |
Reduce 18.72% |
851,924 |
1.02 |
Q3  2019 |
≡ |
Viking Global Investors |
Reduce 12.13% |
1,380,732 |
0.30 |
Q2  2019 |
≡ |
Viking Global Investors |
Reduce 2.49% |
290,693 |
0.05 |
≡ |
Francois Rochon - Giverny Capital |
Reduce 59.50% |
15,616 |
0.06 |
Q1  2019 |
≡ |
Francois Rochon - Giverny Capital |
Reduce 96.06% |
639,292 |
2.68 |
≡ |
Chris Hohn - TCI Fund Management |
Sell 100.00% |
2,427,057 |
0.37 |
Q4  2018 |
≡ |
Chris Hohn - TCI Fund Management |
Add 815.92% |
2,162,070 |
0.33 |
≡ |
Ruane Cunniff - Sequoia Fund |
Reduce 1.02% |
47,092 |
0.04 |
≡ |
Francois Rochon - Giverny Capital |
Reduce 1.58% |
10,674 |
0.04 |
Q3  2018 |
≡ |
Francois Rochon - Giverny Capital |
Add 2.96% |
19,427 |
0.08 |
≡ |
Chris Hohn - TCI Fund Management |
Buy |
264,987 |
0.05 |
≡ |
Ruane Cunniff - Sequoia Fund |
Reduce 2.01% |
94,161 |
0.09 |
Q2  2018 |
≡ |
Francois Rochon - Giverny Capital |
Add 0.58% |
3,799 |
0.02 |
Q1  2018 |
≡ |
Francois Rochon - Giverny Capital |
Add 2.36% |
15,071 |
0.06 |
≡ |
Ruane Cunniff - Sequoia Fund |
Reduce 0.01% |
569 |
0.00 |
Q3  2017 |
≡ |
Stephen Mandel - Lone Pine Capital |
Sell 100.00% |
2,919,817 |
0.54 |
Q2  2017 |
≡ |
Thomas Gayner - Markel Group |
Add 6.57% |
16,000 |
0.01 |
≡ |
Stephen Mandel - Lone Pine Capital |
Buy |
2,919,817 |
0.54 |
Q1  2017 |
≡ |
Ruane Cunniff - Sequoia Fund |
Add 390053.20% |
4,692,340 |
4.05 |
≡ |
Thomas Gayner - Markel Group |
Add 17.92% |
37,000 |
0.03 |
Q4  2016 |
≡ |
Thomas Gayner - Markel Group |
Add 21.11% |
36,000 |
0.03 |
≡ |
Ruane Cunniff - Sequoia Fund |
Buy |
1,203 |
0.00 |
≡ |
Warren Buffett - Berkshire Hathaway |
Sell 100.00% |
3,189,041 |
0.07 |
Q3  2016 |
≡ |
Thomas Gayner - Markel Group |
Add 28.68% |
38,000 |
0.03 |
≡ |
Warren Buffett - Berkshire Hathaway |
Reduce 36.22% |
1,810,957 |
0.04 |
Q2  2016 |
≡ |
Thomas Gayner - Markel Group |
Reduce 74.62% |
389,500 |
0.21 |
≡ |
Warren Buffett - Berkshire Hathaway |
Reduce 75.00% |
15,000,002 |
0.21 |
≡ |
Wallace Weitz - Weitz Large Cap Equity Fund |
Sell 100.00% |
1,150,000 |
5.77 |
Q1  2016 |
≡ |
Warren Buffett - Berkshire Hathaway |
Add 29.99% |
4,613,743 |
0.14 |
Q4  2015 |
≡ |
Thomas Gayner - Markel Group |
Add 1.16% |
6,000 |
0.01 |
Q3  2015 |
≡ |
Warren Buffett - Berkshire Hathaway |
Add 92.33% |
7,386,257 |
0.20 |
≡ |
Wallace Weitz - Weitz Large Cap Equity Fund |
Add 19.79% |
190,000 |
0.80 |
≡ |
Stephen Mandel - Lone Pine Capital |
Sell 100.00% |
4,571,191 |
0.73 |
Q2  2015 |
≡ |
Stephen Mandel - Lone Pine Capital |
Add 1.25% |
56,574 |
0.01 |
≡ |
Thomas Gayner - Markel Group |
Reduce 25.01% |
172,113 |
0.15 |
Q1  2015 |
≡ |
Thomas Gayner - Markel Group |
Add 6.68% |
43,113 |
0.05 |
≡ |
Stephen Mandel - Lone Pine Capital |
Buy |
4,514,617 |
0.74 |
Q4  2014 |
≡ |
Wallace Weitz - Weitz Large Cap Equity Fund |
Add 50.00% |
320,000 |
1.20 |
≡ |
Thomas Gayner - Markel Group |
Add 25.00% |
129,000 |
0.13 |
Q3  2014 |
≡ |
Wallace Weitz - Weitz Large Cap Equity Fund |
Buy |
640,000 |
3.29 |
≡ |
Thomas Gayner - Markel Group |
Buy |
516,000 |
0.68 |
≡ |
Warren Buffett - Berkshire Hathaway |
Buy |
8,000,000 |
0.35 |