M28 Capital Management LP — 13F Holdings & Portfolio
CIK 1807489 · latest 13F-HR filed 2026-05-14
M28 Capital Management LP manages $53.8M in 13F-reported U.S. long-equity assets across 9 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are WVE (61.83%), IVVD (22.35%), TGTX (5.46%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 0 new positions, exited 0, added to 0, and trimmed 9.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$53.8M
Long-equity book
9
Distinct positions
2026-03-31
Filed 2026-05-14
+0 / −0 / ↑0 / ↓9
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Trims
- WAVE LIFE SCIENCES LTD-$63.0M -65.5%
- INVIVYD INC-$10.8M -47.4%
- FRACTYL HEALTH INC-$3.2M -79.2%
- ARROWHEAD PHARMACEUTICALS IN-$2.2M -48.4%
- TG THERAPEUTICS INC-$1.9M -39.1%
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | WAVE LIFE SCIENCES LTD | WVE | Y95308105 | $33.3M | 61.83% | 4,588,284 | SH |
| 2 | INVIVYD INC | IVVD | 00534A102 | $12.0M | 22.35% | 9,248,250 | SH |
| 3 | TG THERAPEUTICS INC | TGTX | 88322Q108 | $2.9M | 5.46% | 88,354 | SH |
| 4 | ARROWHEAD PHARMACEUTICALS IN | ARWR | 04280A100 | $2.3M | 4.29% | 36,851 | SH |
| 5 | PROQR THRAPEUTICS N V | PRQR | N71542109 | $971.7K | 1.81% | 599,793 | SH |
| 6 | FRACTYL HEALTH INC | GUTS | 35168W103 | $849.7K | 1.58% | 1,856,117 | SH |
| 7 | ROCKET PHARMACEUTICALS INC | RCKT | 77313F106 | $754.9K | 1.40% | 210,871 | SH |
| 8 | SILENCE THERAPEUTICS PLC | SLN | 82686Q101 | $533.3K | 0.99% | 101,203 | SH |
| 9 | CURIS INC | CRIS | 231269309 | $155.9K | 0.29% | 284,889 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-14 | $53.8M | 9 | 0000902664-26-002442 |
| 2025-12-31 | 2026-02-13 | $137.6M | 9 | 0000902664-26-000993 |
| 2025-09-30 | 2025-11-13 | $68.0M | 9 | 0000902664-25-004910 |