Q2  2023 |
≡ |
William Von Mueffling - Cantillon Capital Management |
Add 6.34% |
108,536 |
0.14 |
Q4  2022 |
≡ |
Bill & Melinda Gates Foundation Trust |
Add 7.23% |
351,617 |
0.14 |
Q3  2022 |
≡ |
Bill & Melinda Gates Foundation Trust |
Add 11.45% |
500,000 |
0.21 |
Q1  2022 |
≡ |
William Von Mueffling - Cantillon Capital Management |
Add 3.01% |
52,751 |
0.07 |
Q2  2021 |
≡ |
Bill & Melinda Gates Foundation Trust |
Add 0.00% |
1 |
0.00 |
≡ |
Mairs & Power Growth Fund |
Add 9.95% |
94,000 |
0.35 |
Q1  2021 |
≡ |
Mairs & Power Growth Fund |
Add 9.88% |
85,000 |
0.36 |
Q4  2020 |
≡ |
Torray Funds |
Add 1.91% |
31 |
0.00 |
Q3  2020 |
≡ |
Lee Ainslie - Maverick Capital |
Add 55.14% |
5,618 |
0.02 |
Q2  2020 |
≡ |
William Von Mueffling - Cantillon Capital Management |
Add 0.88% |
19,359 |
0.03 |
≡ |
Lee Ainslie - Maverick Capital |
Buy |
10,189 |
0.04 |
Q1  2020 |
≡ |
Thomas Gayner - Markel Group |
Add 0.98% |
3,000 |
0.01 |
Q4  2019 |
≡ |
Thomas Gayner - Markel Group |
Add 2.85% |
8,500 |
0.02 |
Q3  2019 |
≡ |
Thomas Gayner - Markel Group |
Add 4.93% |
14,000 |
0.04 |
Q2  2019 |
≡ |
Thomas Gayner - Markel Group |
Add 2.90% |
8,000 |
0.02 |
≡ |
Torray Funds |
Add 6.57% |
105 |
0.00 |
Q1  2019 |
≡ |
Jensen Investment Management |
Add 0.08% |
1,881 |
0.00 |
≡ |
Thomas Gayner - Markel Group |
Add 2.22% |
6,000 |
0.02 |
≡ |
Torray Funds |
Add 6.60% |
99 |
0.00 |
Q4  2018 |
≡ |
Thomas Gayner - Markel Group |
Add 0.26% |
700 |
0.00 |
≡ |
William Von Mueffling - Cantillon Capital Management |
Add 0.75% |
17,358 |
0.03 |
Q3  2018 |
≡ |
Thomas Gayner - Markel Group |
Add 3.18% |
8,300 |
0.02 |
Q2  2018 |
≡ |
Thomas Gayner - Markel Group |
Add 5.03% |
12,500 |
0.03 |
Q1  2018 |
≡ |
Thomas Gayner - Markel Group |
Add 8.52% |
19,500 |
0.05 |
Q3  2017 |
≡ |
Thomas Gayner - Markel Group |
Add 4.57% |
10,000 |
0.03 |
Q2  2017 |
≡ |
Thomas Gayner - Markel Group |
Add 6.32% |
13,000 |
0.04 |
Q1  2017 |
≡ |
Mairs & Power Growth Fund |
Add 6.83% |
110,000 |
0.31 |
≡ |
Thomas Gayner - Markel Group |
Add 7.30% |
14,000 |
0.04 |
Q4  2016 |
≡ |
Mairs & Power Growth Fund |
Add 1.26% |
20,000 |
0.05 |
≡ |
David Rolfe - Wedgewood Partners |
Add 1.27% |
72 |
0.00 |
≡ |
Thomas Gayner - Markel Group |
Add 6.67% |
12,000 |
0.03 |
Q3  2016 |
≡ |
Thomas Gayner - Markel Group |
Add 8.44% |
14,000 |
0.04 |
Q2  2016 |
≡ |
David Rolfe - Wedgewood Partners |
Add 0.37% |
21 |
0.00 |
≡ |
Thomas Gayner - Markel Group |
Add 2.35% |
3,800 |
0.01 |
Q1  2016 |
≡ |
Bill & Melinda Gates Foundation Trust |
Add 0.00% |
1 |
0.00 |
≡ |
Thomas Gayner - Markel Group |
Add 1.57% |
2,500 |
0.01 |
≡ |
David Rolfe - Wedgewood Partners |
Buy |
5,650 |
0.01 |
Q4  2015 |
≡ |
William Von Mueffling - Cantillon Capital Management |
Add 1.72% |
56,000 |
0.12 |
≡ |
Thomas Gayner - Markel Group |
Add 7.05% |
10,500 |
0.03 |
Q3  2015 |
≡ |
Thomas Gayner - Markel Group |
Add 8.76% |
12,000 |
0.03 |
Q2  2015 |
≡ |
Thomas Gayner - Markel Group |
Add 8.73% |
11,000 |
0.03 |
Q1  2015 |
≡ |
William Von Mueffling - Cantillon Capital Management |
Add 10.36% |
315,232 |
0.70 |
≡ |
Thomas Gayner - Markel Group |
Add 11.50% |
13,000 |
0.04 |
Q4  2014 |
≡ |
Mairs & Power Growth Fund |
Add 7.18% |
109,846 |
0.27 |
≡ |
Thomas Gayner - Markel Group |
Add 11.88% |
12,000 |
0.03 |
≡ |
William Von Mueffling - Cantillon Capital Management |
Add 21.07% |
529,720 |
1.14 |
Q3  2014 |
≡ |
Mairs & Power Growth Fund |
Add 0.66% |
10,000 |
0.03 |
≡ |
Thomas Gayner - Markel Group |
Add 14.77% |
13,000 |
0.04 |
Q2  2014 |
≡ |
William Von Mueffling - Cantillon Capital Management |
Add 0.15% |
3,828 |
0.01 |
≡ |
Mairs & Power Growth Fund |
Add 7.42% |
105,000 |
0.28 |
≡ |
Thomas Gayner - Markel Group |
Add 25.71% |
18,000 |
0.06 |
Q1  2014 |
≡ |
Thomas Gayner - Markel Group |
Add 24.11% |
13,600 |
0.04 |
Q4  2013 |
≡ |
Thomas Gayner - Markel Group |
Add 16.53% |
8,000 |
0.03 |
Q2  2013 |
≡ |
William Von Mueffling - Cantillon Capital Management |
Add 0.78% |
20,000 |
0.05 |
Q1  2013 |
≡ |
William Von Mueffling - Cantillon Capital Management |
Add 75.32% |
1,100,744 |
2.81 |
Q2  2012 |
≡ |
William Von Mueffling - Cantillon Capital Management |
Buy |
1,509,000 |
4.75 |
Q4  2011 |
≡ |
Thomas Gayner - Markel Group |
Add 83.33% |
22,000 |
0.07 |
Q3  2011 |
≡ |
Thomas Gayner - Markel Group |
Buy |
26,400 |
0.08 |
Q1  2011 |
≡ |
Mairs & Power Growth Fund |
Add 0.55% |
10,000 |
0.02 |
≡ |
Bill & Melinda Gates Foundation Trust |
Add 2.34% |
100,000 |
0.03 |
Q4  2010 |
≡ |
Bill & Melinda Gates Foundation Trust |
Add 54.22% |
1,500,000 |
0.50 |
Q3  2010 |
≡ |
Bill & Melinda Gates Foundation Trust |
Add 10.66% |
266,425 |
0.09 |
Q2  2010 |
≡ |
Bill & Melinda Gates Foundation Trust |
Buy |
2,500,000 |
0.95 |
Q2  2009 |
≡ |
Stephen Mandel - Lone Pine Capital |
Buy |
3,485,258 |
1.93 |