Institutional Manager · CIK 0000937522
SCHWERIN BOYLE CAPITAL MANAGEMENT INC
SPRINGFIELD, MA · File #028-03423
Latest AUM
$912.7M
Positions
46
Top-10 Concentration
58.1%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| EXITED | CARMAX INC | 143130102 | -372,156 | -$16.7M | $0 |
| EXITED | COMCAST CORP-A | 20030N101 | -247,000 | -$7.8M | $0 |
| REDUCE | OCCIDENTAL PETROLEUM | 674599105 | -172,562 | -$7.1M | -$2.7M |
| ADD | FISERV INC | FISV | +105,100 | +$7.1M | -$3.3M |
| ADD | SOUTHWEST AIR | 844741108 | +88,600 | +$3.7M | +$1.1M |
| EXITED | LIBERTY LIVE A | 531229748 | -34,883 | -$3.3M | $0 |
| NEW | LIBERTY LIVE A | LLYVK | +32,567 | +$2.7M | $0 |
| REDUCE | ALPHABET, INC | GOOG | -4,929 | -$1.5M | +$15.9M |
| REDUCE | BERKSHIRE HATH B | BRK-A | -2,345 | -$1.2M | -$21,915 |
| REDUCE | CENCORA INC | COR | -2,500 | -$844,375 | +$749,665 |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 202546 pos · $912.7M
- 13F HOLDINGS REPORTQ/E Sep 202547 pos · $914.9M
- 13F HOLDINGS REPORTQ/E Jun 202551 pos · $897.0M
- 13F HOLDINGS REPORTQ/E Mar 202553 pos · $970.1M
- 13F HOLDINGS REPORTQ/E Dec 202453 pos · $974.9M
- 13F HOLDINGS REPORTQ/E Sep 202453 pos · $954.6M
- 13F HOLDINGS REPORTQ/E Jun 202451 pos · $953.4M
- 13F HOLDINGS REPORTQ/E Mar 202452 pos · $1.01B
- 13F HOLDINGS REPORTQ/E Dec 202352 pos · $851.8M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | BERKSHIRE HATH B | BRK-A | 241,158 | $121.2M | 13.28% |
| 2 | ALPHABET, INC | GOOG | 222,044 | $69.7M | 7.63% |
| 3 | WELLS FARGO | 949746101 | 741,252 | $69.1M | 7.57% |
| 4 | AMER EXPRESS | AXP | 159,329 | $58.9M | 6.46% |
| 5 | META PLATFORMS | META | 88,617 | $58.5M | 6.41% |
| 6 | JP MORGAN CHASE | VYLD | 119,543 | $38.5M | 4.22% |
| 7 | MASTERCARD INC | MA | 55,750 | $31.8M | 3.49% |
| 8 | ACUITY INC. | AYI | 79,918 | $28.8M | 3.15% |
| 9 | ACCENTURE PLC | ACN | 101,784 | $27.3M | 2.99% |
| 10 | SPX TECH. INC. | SPXC | 132,450 | $26.5M | 2.90% |
| 11 | EXXON MOBIL | XOM | 215,592 | $25.9M | 2.84% |
| 12 | SENSATA TECH | ST | 672,875 | $22.4M | 2.45% |
| 13 | MCKESSON CORP | MCK | 23,550 | $19.3M | 2.12% |
| 14 | LOEWS CORP | L | 177,451 | $18.7M | 2.05% |
| 15 | SCHWAB INTL EQUITY ETF | 808524805 | 706,500 | $17.0M | 1.86% |
| 16 | AGCO CORP | AGCO | 162,139 | $16.9M | 1.85% |
| 17 | VERIZON COMM | VZ | 398,864 | $16.2M | 1.78% |
| 18 | GENTEX CORP | GNTX | 695,718 | $16.2M | 1.77% |
| 19 | GARTNER INC | IT | 64,001 | $16.1M | 1.77% |
| 20 | VANGUARD FTSE EMERGING MARKET | 922042858 | 296,020 | $15.9M | 1.74% |