M28 Capital Management LP
In its 13F for Q1 2024 (holdings as of March 31, 2024, filed May 14, 2024), M28 Capital Management LP reported 11 stock positions worth $135.3 million. Its top holding was Wave Life Sciences (WVE) at 31.9% of the portfolio, followed by Invivyd (IVVD, 30.3%) and Fractyl Health (GUTS, 10.1%). Compared with Q4 2023, it opened 1 new position and reduced 6. The biggest buy was a new position in Fractyl Health (GUTS) and the biggest sale Rocket Pharmaceuticals (RCKT, shares −26%).
- Most Recent 13F
- Q2 2026
- Location
- STAMFORD, CT
- CIK
- 0001807489
- Portfolio Value
- $135.3M (Q1 2024)
- SEC Filing
- 0000902664-24-003553 ↗ filed May 14, 2024
Holdings Value
Holdings 11 stocks · $135.3M
| WVE Wave Life Sciences Ltd. | 31.91% | 7,000,000 | $43.2M | Reduce -5.1% |
| IVVD Invivyd Inc. | 30.34% | 9,248,250 | $41.1M | No change |
| GUTS Fractyl Health Inc. | 10.15% | 1,856,117 | $13.7M | New |
| RCKT Rocket Pharmaceuticals Inc. | 7.68% | 385,680 | $10.4M | Reduce -26.3% |
| SLN Silence Therapeutics PLC-ADR | 4.78% | 299,400 | $6.5M | Reduce -17.7% |
| SWTX Springworks Therapeutics Inc. | 4.02% | 110,400 | $5.4M | Reduce -22.7% |
| CRIS Curis Inc. | 3.39% | 421,951 | $4.6M | No change |
| BBIO Bridgebio Pharma Inc. | 2.77% | 121,200 | $3.7M | No change |
| TGTX TG Therapeutics Inc. | 1.82% | 161,600 | $2.5M | Reduce -25.4% |
| PRQR Proqr Therapeutics NV | 1.73% | 1,019,498 | $2.3M | Reduce -46.6% |
| ARWR Arrowhead Pharmaceuticals Inc. | 1.42% | 67,400 | $1.9M | No change |
Portfolio Sells Q4 2023 → Q1 2024
| RCKT Rocket Pharmaceuticals Inc. | Reduce -26.3% | 7.68% | −5.32 |
| PRQR Proqr Therapeutics NV | Reduce -46.6% | 1.73% | −1.41 |
| TGTX TG Therapeutics Inc. | Reduce -25.4% | 1.82% | −1.25 |
| SLN Silence Therapeutics PLC-ADR | Reduce -17.7% | 4.78% | −0.46 |
| SWTX Springworks Therapeutics Inc. | Reduce -22.7% | 4.02% | −0.30 |
| WVE Wave Life Sciences Ltd. | Reduce -5.1% | 31.91% | +1.07 |
Portfolio Buys Q4 2023 → Q1 2024
| GUTS Fractyl Health Inc. | New | 10.15% | +10.15 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 9 | $47.2M | WVE, IVVD, TGTX, ARWR, GUTS |
| Q1 2026 | 9 | $53.8M | WVE, IVVD, TGTX, ARWR, PRQR |
| Q4 2025 | 9 | $137.6M | WVE, IVVD, TGTX, ARWR, GUTS |
| Q3 2025 | 9 | $68.0M | WVE, IVVD, TGTX, GUTS, ARWR |
| Q2 2025 | 9 | $58.6M | WVE, IVVD, TGTX, GUTS, PRQR |
| Q1 2025 | 11 | $73.0M | WVE, TGTX, IVVD, BBIO, RCKT |
| Q4 2024 | 11 | $101.9M | WVE, TGTX, RCKT, IVVD, SWTX |
| Q3 2024 | 11 | $91.0M | WVE, IVVD, RCKT, GUTS, TGTX |
| Q2 2024 | 11 | $77.1M | WVE, IVVD, RCKT, GUTS, SWTX |
| Q1 2024 | 11 | $135.3M | WVE, IVVD, GUTS, RCKT, SLN |