Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.
Reported portfolio value by quarter (31 quarters reported)
$45.6M in Q4 2018 → $254M 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 |
|---|---|---|---|---|
| Maze Therapeutics, Inc. | 52.6% | Unchanged | 4,473,958 | $134M |
| Tango Therapeutics, Inc. | 47.4% | Unchanged | 6,374,574 | $120M |
What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.
quarter ended June 30, 2026 · filed August 10, 2026
No position changes this quarter.
quarter ended March 31, 2026 · filed May 07, 2026
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Tango Therapeutics, Inc. | Trimmed | −1,500,000 | −$31.4M | 50.0% |
quarter ended December 31, 2025 · filed February 13, 2026
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Maze Therapeutics, Inc. | Trimmed | −1,600,000 | −$66.3M | 72.7% |
| Tango Therapeutics, Inc. | Trimmed | −5,989,401 | −$53.1M | 27.3% |
quarter ended September 30, 2025 · filed November 13, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Tango Therapeutics, Inc. | Trimmed | −2,995,100 | −$25.2M | 42.5% |
| Pliant Therapeutics, Inc. | Exited | −2,132,867 | −$2.47M | — |
quarter ended June 30, 2025 · filed August 08, 2025
No position changes this quarter.
quarter ended March 31, 2025 · filed May 09, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Maze Therapeutics, Inc. | New | +6,073,958 | +$66.9M | 72.0% |
quarter ended December 31, 2024 · filed February 13, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Fulcrum Therapeutics, Inc. | Exited | −2,343,154 | −$8.37M | — |
quarter ended September 30, 2024 · filed November 06, 2024
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Tango Therapeutics, Inc. | Trimmed | −2,342,400 | −$18M | 80.1% |
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