Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.
Reported portfolio value by quarter (45 quarters reported)
$229M in Q3 2015 → $532M now. Hover for any quarter.
As reported for the quarter ended September 30, 2026. Activity is the change in share count since the prior quarter's filing.
| Holding | % of portfolio | Activity | Shares | Value |
|---|---|---|---|---|
| Berkshire Hathaway Inc | 15.1% | Trimmed 5.0% | 160,790 | $80.1M |
| Alphabet Inc. | 14.4% | Trimmed 4.9% | 222,515 | $76.6M |
| Microsoft Corp | 14.2% | Trimmed 5.1% | 147,376 | $75.6M |
| Amazon.com, Inc. | 12.7% | Trimmed 4.5% | 270,160 | $67.3M |
| Idexx Laboratories Inc | 8.4% | Added 22% | 85,144 | $44.5M |
| Stryker Corp. | 6.8% | Added 12% | 131,889 | $36.3M |
| Mastercard Incorporated | 6.8% | Trimmed 1.6% | 65,304 | $36M |
| Amphenol Corporation | 6.1% | Added 53% | 385,460 | $32.5M |
| Meta Platforms Inc. | 5.2% | Trimmed 11% | 37,766 | $27.4M |
| Crh PLC | 3.2% | Added 33% | 203,810 | $16.9M |
| EL Edwards Lifesciences Corporati | 2.8% | Trimmed 9.6% | 171,325 | $14.8M |
| JM Jp Morgan Chase & Co | 2.0% | Trimmed 25% | 31,388 | $10.4M |
| Berkshire Hathaway Inc. | 0.6% | Unchanged | 4 | $2.99M |
| Roper Technologies, Inc. | 0.4% | Trimmed 45% | 6,453 | $2.25M |
| Brookfield Corporation | 0.4% | Trimmed 54% | 57,559 | $2.1M |
| Apple Inc. | 0.3% | Trimmed 33% | 4,871 | $1.62M |
| VC Visa Inc Com Cl A | 0.3% | Trimmed 53% | 3,966 | $1.43M |
| Danaher Corporation | 0.1% | Trimmed 72% | 2,854 | $632K |
| Copart Inc. | 0.1% | New | 20,617 | $562K |
| AC Alphabet Inc. Class C | 0.1% | Added 111% | 928 | $316K |
| Costco Wholesale Corporation | 0.0% | Trimmed 2.3% | 210 | $191K |
| SE Samsung Electronics Co Ltd | 0.0% | New | 34 | $166K |
| Apa Corporation | 0.0% | Unchanged | 3,130 | $130K |
| Johnson & Johnson | 0.0% | Unchanged | 420 | $111K |
| Wells Fargo & Company | 0.0% | Unchanged | 1,220 | $97.7K |
| Bank Of America Corp | 0.0% | Unchanged | 1,725 | $93.9K |
| UB U.s. Bancorp Del Common New | 0.0% | Unchanged | 1,510 | $87.2K |
| Linde PLC | 0.0% | Unchanged | 137 | $65K |
| Welltower Inc. | 0.0% | Unchanged | 270 | $62.2K |
| IB International Business Machine | 0.0% | Unchanged | 280 | $61.6K |
| Cme Group Inc. | 0.0% | Unchanged | 230 | $60.3K |
| South Bow Corp | 0.0% | Unchanged | 1,700 | $56.3K |
| Caterpillar Inc. | 0.0% | Unchanged | 65 | $52.7K |
| 3C 3m Co Com | 0.0% | Unchanged | 290 | $47.6K |
| EL Eli Lilly & Co | 0.0% | Unchanged | 40 | $46.3K |
| Fastenal Co. | 0.0% | Unchanged | 784 | $38.8K |
| The Tjx Companies, Inc. | 0.0% | Unchanged | 278 | $36.8K |
| FC Frmo Corporation | 0.0% | Unchanged | 5,000 | $33.6K |
| WS Walmart Stores Inc | 0.0% | Unchanged | 255 | $26.5K |
| NN Novo Nordisk A/s | 0.0% | Unchanged | 643 | $24.4K |
| NS Nestle S.a. - ADR | 0.0% | Unchanged | 210 | $19.1K |
| Whirlpool Corp | 0.0% | Unchanged | 559 | $17.2K |
| Dentsply Sirona Inc | 0.0% | Unchanged | 1,451 | $12.9K |
| Public Storage | 0.0% | Unchanged | 27 | $7.64K |
| EP Ershares Private-public Crosso | 0.0% | Unchanged | 275 | $5.87K |
| Tesla | 0.0% | New | 11 | $3.9K |
| Bending Spoons Spa | 0.0% | New | 97 | $3.23K |
| Coinbase Global, Inc. | 0.0% | Unchanged | 12 | $2.24K |
| Block, Inc. | 0.0% | Unchanged | 29 | $2.13K |
| TS Transtel Sa Common | 0.0% | Unchanged | 33 | $33 |
What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.
quarter ended September 30, 2026 · filed October 15, 2026
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Amphenol Corporation | Added | +134,338 | +$11.3M | 6.1% |
| Idexx Laboratories Inc | Added | +15,165 | +$7.92M | 8.4% |
| Berkshire Hathaway Inc | Trimmed | −8,466 | −$4.22M | 15.1% |
| Crh PLC | Added | +50,233 | +$4.16M | 3.2% |
| Microsoft Corp | Trimmed | −7,988 | −$4.1M | 14.2% |
| Stryker Corp. | Added | +14,613 | +$4.02M | 6.8% |
| Alphabet Inc. | Trimmed | −11,408 | −$3.93M | 14.4% |
| JM Jp Morgan Chase & Co | Trimmed | −10,608 | −$3.51M | 2.0% |
| Meta Platforms Inc. | Trimmed | −4,618 | −$3.35M | 5.2% |
| Amazon.com, Inc. | Trimmed | −12,779 | −$3.18M | 12.7% |
Showing the 10 largest of 25 changes.
quarter ended June 30, 2026 · filed July 07, 2026
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Roper Technologies, Inc. | Trimmed | −110,348 | −$37.3M | 0.7% |
| Crh PLC | Added | +138,320 | +$14.8M | 3.1% |
| Apple Inc. | Trimmed | −41,490 | −$12M | 0.4% |
| Microsoft Corp | Added | +30,378 | +$11.3M | 10.8% |
| Stryker Corp. | Added | +33,812 | +$10.6M | 6.9% |
| M Markel Corp. | Exited | −1,140 | −$2.18M | — |
| Meta Platforms Inc. | Added | +3,395 | +$1.91M | 4.4% |
| Brookfield Corporation | Added | +41,845 | +$1.78M | 1.0% |
| VC Visa Inc Com Cl A | Added | +4,426 | +$1.52M | 0.5% |
| Mastercard Incorporated | Trimmed | −2,847 | −$1.46M | 6.3% |
Showing the 10 largest of 28 changes.
quarter ended March 31, 2026 · filed April 20, 2026
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| JM Jp Morgan Chase & Co | Trimmed | −67,550 | −$19.9M | 2.6% |
| Roper Technologies, Inc. | Added | +42,017 | +$14.9M | 8.6% |
| Alphabet Inc. | Trimmed | −45,961 | −$13.2M | 13.4% |
| Amazon.com, Inc. | Added | +61,158 | +$12.7M | 11.5% |
| Microsoft Corp | Added | +22,654 | +$8.39M | 9.2% |
| Meta Platforms Inc. | Added | +11,549 | +$6.61M | 4.4% |
| Amphenol Corporation | Trimmed | −50,811 | −$6.42M | 6.2% |
| Apple Inc. | Trimmed | −23,999 | −$6.09M | 2.5% |
| Cme Group Inc. | Trimmed | −1,656 | −$489K | 0.1% |
| Berkshire Hathaway Inc | Trimmed | −917 | −$439K | 15.9% |
Showing the 10 largest of 24 changes.
quarter ended December 31, 2025 · filed February 10, 2026
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Idexx Laboratories Inc | Trimmed | −26,085 | −$17.6M | 8.2% |
| Alphabet Inc. | Trimmed | −51,432 | −$16.1M | 15.5% |
| Home Depot | Exited | −37,869 | −$15.3M | — |
| Stryker Corp. | Added | +33,238 | +$11.7M | 5.1% |
| Meta Platforms Inc. | Added | +12,319 | +$8.13M | 3.2% |
| Amphenol Corporation | Trimmed | −26,537 | −$3.59M | 7.0% |
| Roper Technologies, Inc. | Added | +6,496 | +$2.89M | 6.3% |
| Brookfield Corporation | Added | +28,166 | +$1.29M | 0.7% |
| Amazon.com, Inc. | Added | +1,907 | +$440K | 8.8% |
| Apple Inc. | Trimmed | −800 | −$217K | 3.5% |
Showing the 10 largest of 16 changes.
quarter ended September 30, 2025 · filed October 17, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Home Depot | Trimmed | −30,004 | −$12.2M | 2.7% |
| Meta Platforms Inc. | Added | +15,016 | +$11M | 1.9% |
| Roper Technologies, Inc. | Added | +6,011 | +$3M | 6.4% |
| Danaher Corporation | Trimmed | −12,572 | −$2.49M | 0.2% |
| M Markel Corp. | Added | +600 | +$1.15M | 0.4% |
| Amazon.com, Inc. | Added | +4,574 | +$1M | 8.3% |
| Berkshire Hathaway Inc | Trimmed | −1,922 | −$966K | 14.8% |
| Amphenol Corporation | Trimmed | −5,773 | −$714K | 7.0% |
| Walgreens Boots Alliance, Inc. | Exited | −41,476 | −$476K | — |
| Microsoft Corp | Trimmed | −813 | −$421K | 9.3% |
Showing the 10 largest of 29 changes.
quarter ended June 30, 2025 · filed July 25, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Idexx Laboratories Inc | Added | +39,233 | +$21M | 9.7% |
| Danaher Corporation | Trimmed | −78,574 | −$15.5M | 0.7% |
| NC Nike Class B | Trimmed | −148,828 | −$10.6M | — |
| Brown-forman Corporation | Trimmed | −380,971 | −$10.3M | — |
| DP Diageo PLC ADR | Exited | −84,700 | −$8.88M | — |
| Apple Inc. | Trimmed | −15,439 | −$3.17M | 2.9% |
| Berkshire Hathaway Inc | Added | +3,165 | +$1.54M | 15.8% |
| Home Depot | Trimmed | −1,175 | −$431K | 4.7% |
| Alphabet Inc. | Trimmed | −1,824 | −$321K | 11.2% |
| EL Edwards Lifesciences Corporati | Trimmed | −4,004 | −$313K | 2.8% |
Showing the 10 largest of 26 changes.
quarter ended March 31, 2025 · filed April 15, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Apple Inc. | Trimmed | −50,175 | −$11.1M | 3.9% |
| Alphabet Inc. | Added | +45,153 | +$6.98M | 10.1% |
| Amphenol Corporation | Added | +99,398 | +$6.52M | 4.2% |
| NC Nike Class B | Added | +86,792 | +$5.51M | 1.8% |
| Berkshire Hathaway Inc | Added | +7,273 | +$3.87M | 17.4% |
| Amazon.com, Inc. | Added | +19,859 | +$3.78M | 7.9% |
| Microsoft Corp | Trimmed | −9,795 | −$3.68M | 7.6% |
| Home Depot | Trimmed | −4,874 | −$1.79M | 4.9% |
| Idexx Laboratories Inc | Added | +4,052 | +$1.7M | 4.6% |
| Roper Technologies, Inc. | Added | +2,817 | +$1.66M | 7.8% |
Showing the 10 largest of 41 changes.
quarter ended December 31, 2024 · filed January 21, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Idexx Laboratories Inc | Added | +43,369 | +$17.9M | 4.3% |
| The Estee Lauder Companies Inc | Trimmed | −224,874 | −$16.9M | — |
| Apple Inc. | Trimmed | −32,347 | −$8.1M | 7.0% |
| JM Jp Morgan Chase & Co | Trimmed | −28,906 | −$6.93M | 5.3% |
| NC Nike Class B | Trimmed | −76,560 | −$5.79M | 0.9% |
| Home Depot | Trimmed | −7,441 | −$2.89M | 5.7% |
| EL Edwards Lifesciences Corporati | Added | +32,781 | +$2.43M | 2.6% |
| Microsoft Corp | Trimmed | −2,106 | −$888K | 9.5% |
| Mastercard Incorporated | Added | +368 | +$194K | 7.1% |
| Danaher Corporation | Added | +481 | +$110K | 4.2% |
Showing the 10 largest of 22 changes.
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