Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.
Reported portfolio value by quarter (23 quarters reported)
$336M in Q4 2020 → $159M 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 |
|---|---|---|---|---|
| Caredx Inc | 21.4% | Added 27% | 1,190,000 | $33.9M |
| 10x Genomics Inc | 15.5% | Trimmed 41% | 642,000 | $24.6M |
| Personalis Inc | 14.1% | Unchanged | 1,676,300 | $22.5M |
| AB Adaptive Biotechnologies Cor | 13.6% | Unchanged | 1,010,145 | $21.7M |
| Guardant Health Inc | 10.8% | Trimmed 53% | 114,747 | $17.2M |
| Quanterix Corp | 9.5% | Added 62% | 3,474,202 | $15M |
| Natera Inc | 5.9% | Trimmed 23% | 34,494 | $9.36M |
| Billiontoone Inc | 5.3% | Added 250% | 70,000 | $8.4M |
| Tempus Ai Inc | 3.8% | Trimmed 33% | 105,412 | $6.11M |
What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.
quarter ended June 30, 2026 · filed August 14, 2026
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Guardant Health Inc | Trimmed | −127,500 | −$19.1M | 10.8% |
| 10x Genomics Inc | Trimmed | −448,000 | −$17.2M | 15.5% |
| Twist Bioscience Corp | Exited | −276,000 | −$13.1M | — |
| Caredx Inc | Added | +255,000 | +$7.27M | 21.4% |
| Billiontoone Inc | Added | +50,000 | +$6M | 5.3% |
| Quanterix Corp | Added | +1,332,055 | +$5.75M | 9.5% |
| Tempus Ai Inc | Trimmed | −51,000 | −$2.95M | 3.8% |
| Natera Inc | Trimmed | −10,300 | −$2.8M | 5.9% |
quarter ended March 31, 2026 · filed May 14, 2026
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| 10x Genomics Inc | New | +1,090,000 | +$23.1M | 18.6% |
| Natera Inc | Trimmed | −96,700 | −$19.3M | 7.2% |
| AB Adaptive Biotechnologies Cor | Trimmed | −755,000 | −$10.5M | 11.2% |
| Guardant Health Inc | Trimmed | −112,800 | −$10.4M | 17.9% |
| Grail Inc | Exited | −99,000 | −$8.47M | — |
| Caredx Inc | Added | +425,000 | +$7.38M | 13.0% |
| Twist Bioscience Corp | Trimmed | −107,000 | −$5.08M | 10.5% |
| Tempus Ai Inc | Added | +70,000 | +$3.17M | 5.7% |
| Billiontoone Inc | New | +20,000 | +$1.58M | 1.3% |
| Quanterix Corp | Added | +50,000 | +$176K | 6.0% |
quarter ended December 31, 2025 · filed February 17, 2026
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Twist Bioscience Corp | New | +383,000 | +$12.1M | 7.6% |
| Grail Inc | New | +99,000 | +$8.47M | 5.3% |
| Quanterix Corp | Added | +1,134,400 | +$7.21M | 8.4% |
| AB Adaptive Biotechnologies Cor | Trimmed | −380,000 | −$6.17M | 18.0% |
| Guardant Health Inc | Trimmed | −50,600 | −$5.17M | 22.8% |
| Tempus Ai Inc | Added | +14,000 | +$827K | 3.2% |
quarter ended September 30, 2025 · filed November 14, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| 1G 10x Genomics Inc-class A | Exited | −1,100,720 | −$12.7M | — |
| Akoya Biosciences Inc | Exited | −4,697,785 | −$6.11M | — |
| Tempus Ai Inc | New | +72,412 | +$5.84M | 5.3% |
| Natera Inc | Trimmed | −25,000 | −$4.02M | 20.8% |
| Caredx Inc | Trimmed | −214,014 | −$3.11M | 6.8% |
| Guardant Health Inc | Trimmed | −33,400 | −$2.09M | 23.1% |
quarter ended June 30, 2025 · filed August 14, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Guardant Health Inc | Trimmed | −255,000 | −$13.3M | 18.1% |
| 1G 10x Genomics Inc-class A | New | +1,100,720 | +$12.7M | 10.1% |
| Natera Inc | Trimmed | −42,000 | −$7.1M | 22.3% |
| Quanterix Corp | Added | +585,572 | +$3.89M | 5.0% |
| Personalis Inc | Added | +500,900 | +$3.29M | 8.7% |
quarter ended March 31, 2025 · filed May 15, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Natera Inc | Trimmed | −46,300 | −$6.55M | 29.2% |
| Exact Sciences Corp | Exited | −78,843 | −$4.43M | — |
| Tempus Ai Inc | Exited | −90,000 | −$3.04M | — |
| Caredx Inc | Added | +120,014 | +$2.13M | 12.7% |
| Quanterix Corp | Added | +293,782 | +$1.91M | 2.4% |
| Personalis Inc | Added | +42,500 | +$149K | 4.1% |
quarter ended December 31, 2024 · filed February 13, 2025
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Exact Sciences Corp | Trimmed | −176,400 | −$9.91M | 3.9% |
| Guardant Health Inc | Added | +243,000 | +$7.42M | 18.8% |
| Natera Inc | Trimmed | −36,300 | −$5.75M | 35.7% |
| Tempus Ai Inc | New | +90,000 | +$3.04M | 2.7% |
| Personalis Inc | Added | +132,900 | +$768K | 5.8% |
quarter ended September 30, 2024 · filed November 14, 2024
| Company | Action | Shares changed | Value of change | % of portfolio |
|---|---|---|---|---|
| Natera Inc | Trimmed | −212,000 | −$26.9M | 32.5% |
| Exact Sciences Corp | Added | +197,900 | +$13.5M | 15.3% |
| AB Adaptive Biotechnologies Cor | New | +2,145,145 | +$11M | 9.7% |
| Personalis Inc | New | +1,000,000 | +$5.38M | 4.7% |
| 10x Genomics Inc | Exited | −230,000 | −$4.47M | — |
| Caredx Inc | Added | +94,000 | +$2.94M | 16.6% |
| Guardant Health Inc | Trimmed | −120,000 | −$2.75M | 9.1% |
| Quanterix Corp | Trimmed | −200,000 | −$2.59M | 0.9% |
| Maxcyte Inc | Exited | −603,937 | −$2.37M | — |
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