# M28 Capital Management LP: Form 13F holdings

An institutional investment manager in STAMFORD, CT. SEC CIK 1807489.

- Quarter ended: 2026-06-30
- Filed: 2026-08-13
- Reported value: $47.2m
- Positions: 9 (9 lines in the filing's table; lines for the same security and option type are added together here)
- Compared with: the 13F for the quarter ended 2026-03-31
- Filing: https://www.sec.gov/Archives/edgar/data/1807489/000090266426003441/

## Holdings

As filed, largest first. Reported value is what the manager stated at the quarter end (Jun 30, 2026), in US dollars; it is filing data, not a price. Weight is the share of the total reported value.

| Issuer | Class | Reported value | Weight | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | ---: | --- | --- |
| WAVE LIFE SCIENCES LTD | SHS | $26.7m | 56.5% | 4,588,284 |  | Unchanged |
| [INVIVYD INC (IVVD)](/companies/ivvd.md) | COM | $8.1m | 17.1% | 9,248,250 |  | Unchanged |
| [TG THERAPEUTICS INC (TGTX)](/companies/tgtx.md) | COM | $4.9m | 10.3% | 88,354 |  | Unchanged |
| [ARROWHEAD PHARMACEUTICALS IN (ARWR)](/companies/arwr.md) | COM | $3.0m | 6.4% | 36,851 |  | Unchanged |
| FRACTYL HEALTH INC | COM | $1.5m | 3.1% | 1,856,117 |  | Unchanged |
| PROQR THRAPEUTICS N V | SHS EURO | $1.1m | 2.4% | 599,793 |  | Unchanged |
| [SILENCE THERAPEUTICS PLC (SLN)](/companies/sln.md) | ADS | $1.1m | 2.4% | 101,203 |  | Unchanged |
| [ROCKET PHARMACEUTICALS INC (RCKT)](/companies/rckt.md) | COM | $721.2k | 1.5% | 210,871 |  | Unchanged |
| CURIS INC | COM | $148.7k | 0.3% | 284,889 |  | Unchanged |

Source: SEC EDGAR, Form 13F-HR, accession 0000902664-26-003441. Last ingested by Listed: Oct 22, 2026, 05:26 ET. No prices; not investment advice.