| Quarter | Holdings | Value ($000) | Top Holdings | Form Type | Date Filed | Filing ID |
|---|---|---|---|---|---|---|
| Q1 2025 | 30 | 262,270 | BRK-A, WBD, IDCC, UTHR | 13F-HR | 5/15/2025 | 000108514625003178 |
| Q4 2024 | 31 | 281,448 | BRK-A, IDCC, TPL, WBD | 13F-HR | 2/14/2025 | 000108514625001559 |
| Q3 2024 | 29 | 280,109 | BRK-A, UTHR, IDCC, TPL | 13F-HR | 11/14/2024 | 000108514624005745 |
| Q2 2024 | 29 | 273,696 | BRK-A, UTHR, LRCX, AMAT | 13F-HR | 8/14/2024 | 000108514624003921 |
| Q1 2024 | 31 | 260,375 | BRK-A, MU, AMAT, KLAC | 13F-HR | 5/15/2024 | 000108514624002529 |
| Q4 2023 | 31 | 236,216 | BRK-A, INTC, HCC, IDCC | 13F-HR | 2/14/2024 | 000108514624001324 |
| Q3 2023 | 31 | 224,130 | BRK-A, CEIX, HCC, VLO | 13F-HR | 11/14/2023 | 000108514623004358 |
| Q2 2023 | 31 | 212,278 | BRK-A, IDCC, AMAT, KLAC | 13F-HR | 8/14/2023 | 000108514623003311 |
| Q1 2023 | 30 | 188,173 | BRK-A, MPC, DINO, IDCC | 13F-HR | 5/15/2023 | 000108514623002369 |
| Q4 2022 | 30 | 158,437 | BRK-A, TPL, UTHR, DINO | 13F-HR | 2/14/2023 | 000108514623001161 |
| Q3 2022 | 30 | 144,115 | BRK-A, DINO, MOH, HUM | 13F-HR | 11/14/2022 | 000108514622003997 |
| Q2 2022 | 30 | 152,425 | BRK-A, UTHR, DINO, ELV | 13F-HR | 8/15/2022 | 000108514622003044 |
| Q1 2022 | 31 | 165,357 | BRK-A, ELV, MPC, HPQ | 13F-HR | 5/16/2022 | 000108514622002144 |
| Q4 2021 | 32 | 160,407 | BRK-A, UTHR, ELV, HPQ | 13F-HR | 2/14/2022 | 000108514622000928 |
| Q3 2021 | 32 | 150,454 | BRK-A, UTHR, TNET, ELV | 13F-HR | 11/15/2021 | 000108514621003244 |
| Q2 2021 | 32 | 156,119 | BRK-A, UTHR, TPL, ELV | 13F-HR | 8/16/2021 | 000108514621002543 |
| Q1 2021 | 33 | 154,139 | BRK-A, TPL, UTHR, HPQ | 13F-HR | 5/17/2021 | 000108514621001752 |
| Q4 2020 | 34 | 133,798 | BRK-A, TSE, UTHR, LYB | 13F-HR | 2/16/2021 | 000108514621000823 |
| Q3 2020 | 36 | 112,973 | BRK-A, HUM, LYB, UTHR | 13F-HR | 11/16/2020 | 000108514620003008 |
| Q2 2020 | 36 | 119,304 | BRK-A, MED, UTHR, MOH | 13F-HR | 8/17/2020 | 000108514620002322 |
| Q1 2020 | 32 | 92,386 | BRK-A, UTHR, MOH, HUM | 13F-HR | 5/15/2020 | 000108514620001527 |
| Q4 2019 | 29 | 124,370 | BRK-A, MTOR, CNC, LRCX | 13F-HR | 2/14/2020 | 000108514620000720 |
| Q3 2019 | 29 | 142,639 | BRK-A, TSE, HFC, HUN | 13F-HR | 11/14/2019 | 000108514619002970 |
| Q2 2019 | 28 | 103,092 | BRK-A, MOH, VLO, KLAC | 13F-HR | 8/14/2019 | 000108514619002335 |
| Q1 2019 | 29 | 104,343 | BRK-A, MOH, MKSI, KLAC | 13F-HR | 5/15/2019 | 000108514619001623 |
| Q4 2018 | 32 | 88,004 | BRK-A, MOH, KLIC, LYB | 13F-HR | 2/14/2019 | 000108514619000761 |
| Q3 2018 | 30 | 102,618 | BRK-A, MOH, WCG, UTHR | 13F-HR | 11/14/2018 | 000108514618002689 |
| Q2 2018 | 32 | 103,141 | BRK-A, VLO, LYB, IDCC | 13F-HR | 8/14/2018 | 000108514618002079 |
| Q1 2018 | 32 | 100,893 | BRK-A, MOH, CNC, HUM | 13F-HR | 5/15/2018 | 000108514618001448 |
| Q4 2017 | 30 | 101,406 | BRK-A, MYGN, ELV, FLR | 13F-HR | 2/14/2018 | 000108514618000738 |
| Q3 2017 | 28 | 87,545 | BRK-A, MYGN, GILD, CNC | 13F-HR | 11/14/2017 | 000108514617002466 |
| Q2 2017 | 34 | 86,927 | BRK-A, MYGN, ELV, HUM | 13F-HR | 8/14/2017 | 000108514617001856 |
| Q1 2017 | 32 | 91,243 | BRK-A, AAPL, HPQ, RHI | 13F-HR | 5/15/2017 | 000108514617001292 |
| Q4 2016 | 31 | 90,103 | BRK-A, UTHR, RHI, AAPL | 13F-HR | 2/14/2017 | 000108514617000759 |
| Q3 2016 | 32 | 93,028 | BRK-A, SNI, MOH, FIT | 13F-HR | 11/14/2016 | 000108514616004757 |
| Q2 2016 | 32 | 89,728 | BRK-A, SNI, IDCC, KLIC | 13F-HR | 8/15/2016 | 000108514616004307 |
| Q1 2016 | 33 | 96,201 | BRK-A, SNI, MGLN, WNC | 13F-HR | 5/13/2016 | 000108514616003762 |
| Q4 2015 | 33 | 88,511 | BRK-A, MGLN, HNT, WNC | 13F-HR | 2/16/2016 | 000108514616003181 |
| Q3 2015 | 34 | 84,200 | BRK-A, NSR, LYB, MSFT | 13F-HR | 11/16/2015 | 000108514615002376 |
| Q2 2015 | 36 | 104,010 | BRK-A, MOH, LYB, HNT | 13F-HR | 8/14/2015 | 000108514615001805 |
| Q1 2015 | 37 | 111,876 | BRK-A, HUM, MOH, SLCA | 13F-HR | 5/11/2015 | 000108514615001102 |
| Q4 2014 | 36 | 101,854 | BRK-A, HUM, ELV, BKE | 13F-HR | 2/18/2015 | 000108514615000791 |