CIK 1274403
Long positions in SEC Section 13(f) securities (US-listed stocks, ADRs and ETFs), largest first · Δ vs 2025-Q4. A lagged quarterly snapshot (filed ≤45 days after quarter-end); excludes shorts, options, cash, and shares listed only on non-US exchanges — foreign companies held via a US listing or ADR (e.g. Alibaba, TSMC) ARE included.
As filed = each book applied at its quarter-end (what the reported book did) · As copyable = applied at its statutory 45-day filing deadline (what a 13F follower could have earned).
Computing…
Hypothetical modeled performance constructed with hindsight — not actual results, and not indicative of future results. See the Disclaimer.
| Industry group | Weight | Names |
|---|---|---|
| Pharmaceuticals & Biotechnology | 99.32% | 9 |
| Life Sciences Tools & Services | 0.68% | 1 |
| # | Ticker | Name | Sector | Weight |
|---|---|---|---|---|
| 1 | MAZE | Maze Therapeutics, Inc. | Health Care | 18.16% |
| 2 | RAPP | Rapport Therapeutics, Inc. | Health Care | 17.23% |
| 3 | VIR | Vir Biotechnology, Inc. | Health Care | 17.09% |
| 4 | ERAS | Erasca, Inc. | Health Care | 16.95% |
| 5 | BEAM | Beam Therapeutics Inc. | Health Care | 15.98% |
| 6 | LYEL | Lyell Immunopharma, Inc. | Health Care | 9.62% |
| 7 | GENB | Generate Biomedicines, Inc. | Health Care | 3.59% |
| 8 | TXG | 10x Genomics, Inc. | Health Care | 0.68% |
| 9 | GOSS | Gossamer Bio, Inc. | Health Care | 0.39% |
| 10 | QTTB | Q32 Bio Inc. | Health Care | 0.30% |
10/10 names classified · sector 100.0% of weight · industry 100.0% · mkt cap 100.0%; unclassified names shown, never dropped.
Sector is classified on each name's CURRENT fundamentals, not point-in-time — apparent sector drift can reflect the market re-rating a holding, not a manager trade. 13F is a lagged quarterly snapshot of long positions in US-listed securities only — foreign companies held via a US listing or ADR ARE included, but shares listed only on non-US exchanges (plus shorts, options and cash) are not. Latest quarter: 100.0% of the book is sector-classified (unclassified names shown, never dropped).
Only 0% of book weight classified — the grid is NOT representative of the whole book.
Classified: 0.3% of book weight (1/10 names) · unclassified 99.7%: MAZE, RAPP, VIR, ERAS, BEAM, LYEL, GENB, TXG, GOSS. Size: cap 70/20/10 bands; style: value/growth composite on our own metrics — not Morningstar's model.
No contribution data for this period.
| # | Security | Shares | Value | Weight | Δ QoQ |
|---|---|---|---|---|---|
| 1 | MAZEMAZE THERAPEUTICS INC | 4,120,053 | $123M | 18.2% | HOLD |
| 2 | RAPPRAPPORT THERAPEUTICS INC | 3,728,738 | $117M | 17.2% | HOLD |
| 3 | VIRVIR BIOTECHNOLOGY INC | 12,916,663 | $116M | 17.1% | HOLD |
| 4 | ERASERASCA INC | 7,091,557 | $115M | 16.9% | TRIM −36% |
| 5 | BEAMBEAM THERAPEUTICS INC | 4,540,132 | $108M | 16.0% | HOLD |
| 6 | LYELLYELL IMMUNOPHARMA INC | 3,247,162 | $65M | 9.6% | ADD 18% |
| 7 | GENBGENERATE BIOMEDICINES INC | 1,944,426 | $24M | 3.6% | NEW |
| 8 | TXG10X GENOMICS INC | 217,834 | $5M | 0.7% | TRIM −70% |
| 9 | GOSSGOSSAMER BIO INC | 8,055,916 | $3M | 0.4% | HOLD |
| 10 | QTTBQ32 BIO INC | 320,482 | $2M | 0.3% | HOLD |
| Security | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| MAZEMAZE THERAPEUTICS INC | — | 4.1M | 4.1M | 4.1M | 4.1M | 4.1M | $123M |
| RAPPRAPPORT THERAPEUTICS INC | 3.7M | 3.7M | 3.7M | 3.7M | 3.7M | 3.7M | $117M |
| VIRVIR BIOTECHNOLOGY INC | — | — | 12.9M | 12.9M | 12.9M | 12.9M | $116M |
| ERASERASCA INC | 11.1M | 11.1M | 11.1M | 11.1M | 11.1M | 7.1M | $115M |
| BEAMBEAM THERAPEUTICS INC | 4.5M | 4.5M | 4.5M | 4.5M | 4.5M | 4.5M | $108M |
| LYELLYELL IMMUNOPHARMA INC | — | — | 1.8M | 2.8M | 2.8M | 3.2M | $65M |
| GENBGENERATE BIOMEDICINES INC | — | — | — | — | — | 1.9M | $24M |
| TXG10X GENOMICS INC | — | — | — | — | 738K | 218K | $5M |
| GOSSGOSSAMER BIO INC | 8.1M | 8.1M | 8.1M | 8.1M | 8.1M | 8.1M | $3M |
| QTTBQ32 BIO INC | 320K | 320K | 320K | 320K | 320K | 320K | $2M |
Shares reported each quarter by the largest current holdings. Green = added vs the prior filing of that name, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.
