Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.
Reported portfolio value by quarter (44 quarters reported)
$106M in Q4 2015 → $64.5M 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 |
|---|---|---|---|---|
| BH Berkshire Hathaway Inc Del | 76.5% | Unchanged | 66 | $49.3M |
| VI Vanguard Index Fds | 10.7% | Added 11% | 9,835 | $6.89M |
| Ryan Specialty Holdings Inc | 6.8% | Unchanged | 119,046 | $4.4M |
| VS Vanguard Scottsdale Fds | 6.0% | Added 21% | 68,502 | $3.88M |
What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.
quarter ended September 30, 2026 · filed October 21, 2026
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| VI Vanguard Index Fds | Added | +1,009 | +$707K | 10.7% |
| VS Vanguard Scottsdale Fds | Added | +12,011 | +$681K | 6.0% |
| Exicure Inc | Exited | −10,430 | −$21.7K | — |
quarter ended June 30, 2026 · filed July 09, 2026
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| VI Vanguard Index Fds | New | +8,826 | +$6.06M | 9.6% |
| VS Vanguard Scottsdale Fds | New | +56,491 | +$3.33M | 5.3% |
quarter ended March 31, 2026 · filed April 16, 2026
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| BH Berkshire Hathaway Inc Del | Trimmed | −389 | −$279M | 92.1% |
| Ryan Specialty Holdings Inc | New | +119,046 | +$4.02M | 7.8% |
| Exicure Inc | New | +10,430 | +$44.4K | 0.1% |
| Black Stone Minerals L P | Exited | −1,086,025 | −$15.7K | — |
quarter ended December 31, 2025 · filed January 26, 2026
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Ryan Specialty Holdings Inc | Exited | −119,046 | −$6.71M | — |
| BH Berkshire Hathaway Inc Del | Added | +389 | +$76.9K | 85.2% |
| Actuate Therapeutics Inc | Exited | −6,488 | −$43.4K | — |
| Exicure Inc | Exited | −10,430 | −$42.7K | — |
| Black Stone Minerals L P | New | +1,086,025 | +$15.7K | 14.8% |
quarter ended September 30, 2025 · filed October 29, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Actuate Therapeutics Inc | Trimmed | −21,290 | −$142K | 0.1% |
quarter ended June 30, 2025 · filed July 16, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Tempus Ai Inc | Exited | −14,033 | −$677K | — |
quarter ended March 31, 2025 · filed April 16, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| BH Berkshire Hathaway Inc Del | Trimmed | −13 | −$10.4M | 84.3% |
| Granite Ridge Resources Inc | Exited | −18,172 | −$117K | — |
quarter ended December 31, 2024 · filed January 28, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| BH Berkshire Hathaway Inc Del | Trimmed | −28 | −$19.1M | 86.2% |
| Agilon Health Inc | Exited | −562,400 | −$2.21M | — |
| Granite Ridge Resources Inc | New | +18,172 | +$117K | 0.2% |
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