Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.
Reported portfolio value by quarter (19 quarters reported)
$128M in Q4 2021 → $47.2M now. Hover for any quarter.
As reported for the quarter ended June 30, 2026. Activity is the change in share count since the prior quarter's filing.
| Holding | % of portfolio | Activity | Shares | Value |
|---|---|---|---|---|
| Wave Life Sciences Ltd | 56.5% | Unchanged | 4,588,284 | $26.7M |
| Invivyd Inc | 17.1% | Unchanged | 9,248,250 | $8.07M |
| Tg Therapeutics Inc | 10.3% | Unchanged | 88,354 | $4.85M |
| AP Arrowhead Pharmaceuticals In | 6.4% | Unchanged | 36,851 | $3M |
| Fractyl Health Inc | 3.1% | Unchanged | 1,856,117 | $1.47M |
| PT Proqr Thrapeutics N V | 2.4% | Unchanged | 599,793 | $1.12M |
| Silence Therapeutics PLC | 2.4% | Unchanged | 101,203 | $1.11M |
| Rocket Pharmaceuticals Inc | 1.5% | Unchanged | 210,871 | $721K |
| Curis Inc | 0.3% | Unchanged | 284,889 | $149K |
What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.
quarter ended June 30, 2026 · filed August 13, 2026
No position changes this quarter.
quarter ended March 31, 2026 · filed May 14, 2026
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Wave Life Sciences Ltd | Trimmed | −1,076,264 | −$7.8M | 61.8% |
| Tg Therapeutics Inc | Trimmed | −73,246 | −$2.43M | 5.5% |
| AP Arrowhead Pharmaceuticals In | Trimmed | −30,549 | −$1.92M | 4.3% |
| PT Proqr Thrapeutics N V | Trimmed | −419,705 | −$680K | 1.8% |
| Rocket Pharmaceuticals Inc | Trimmed | −174,809 | −$626K | 1.4% |
| Silence Therapeutics PLC | Trimmed | −83,897 | −$442K | 1.0% |
| Curis Inc | Trimmed | −236,170 | −$129K | 0.3% |
quarter ended December 31, 2025 · filed February 13, 2026
No position changes this quarter.
quarter ended September 30, 2025 · filed November 13, 2025
No position changes this quarter.
quarter ended June 30, 2025 · filed August 13, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Bridgebio Pharma Inc | Exited | −121,200 | −$4.19M | — |
| Springworks Therapeutics Inc | Exited | −55,200 | −$2.44M | — |
quarter ended March 31, 2025 · filed May 14, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Springworks Therapeutics Inc | Trimmed | −55,200 | −$2.44M | 3.3% |
quarter ended December 31, 2024 · filed February 13, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Wave Life Sciences Ltd | Trimmed | −500,000 | −$6.19M | 68.8% |
| Curis Inc | Added | +99,108 | +$303K | 1.6% |
quarter ended September 30, 2024 · filed November 12, 2024
No position changes this quarter.
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