Holders — by stockHoldings — by fund
M28 Capital Management LP
Everything this manager disclosed owning in US-listed stocks — its complete Form 13F portfolio · as of 2026-06-30 · filed with the SEC up to 45 days after quarter end · CIK 0001807489
$47.2M
disclosed book value
9
positions
56.5%
largest position share
Positions, as of 2026-06-30
top 9 of 9 · 13F covers long US-listed positions only — cash, bonds, private and foreign stakes are not disclosed · PUT/CALL tags = options positions (share-equivalents), not shares held
| # | Issuer | Shares | Value | % of book |
|---|---|---|---|---|
| 1 | WAVE LIFE SCIENCES LTD | 4.6M | $26.7M | 56.5% |
| 2 | IVVDINVIVYD INC | 9.2M | $8.1M | 17.1% |
| 3 | TGTXTG THERAPEUTICS INC | 88,354 | $4.9M | 10.3% |
| 4 | ARWRARROWHEAD PHARMACEUTICALS IN | 36,851 | $3.0M | 6.4% |
| 5 | GUTSFRACTYL HEALTH INC | 1.9M | $1.5M | 3.1% |
| 6 | PROQR THRAPEUTICS N V | 599,793 | $1.1M | 2.4% |
| 7 | SLNSILENCE THERAPEUTICS PLC | 101,203 | $1.1M | 2.4% |
| 8 | RCKTROCKET PHARMACEUTICALS INC | 210,871 | $721,179 | 1.5% |
| 9 | CRISEURCURIS INC | 284,889 | $148,741 | 0.3% |
Source: SEC Form 13F-HR, reporting period 2026-06-30. Values are the manager's filed June-30-style quarter-end marks, not live prices. Research, not investment advice.