Institutional Manager · CIK 0001807489
M28 Capital Management LP
Stamford, CT · File #028-21846
Latest AUM
$137.6M
Positions
9
Top-10 Concentration
100.0%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| REDUCE | ARROWHEAD PHARMACEUTICALS IN | ARWR | 0 | $0 | +$2.2M |
| REDUCE | CURIS INC | CRIS | 0 | $0 | -$350,621 |
| REDUCE | FRACTYL HEALTH INC | GUTS | 0 | $0 | +$1.1M |
| REDUCE | INVIVYD INC | IVVD | 0 | $0 | +$12.7M |
| REDUCE | PROQR THRAPEUTICS N V | N71542109 | 0 | $0 | -$112,145 |
| REDUCE | ROCKET PHARMACEUTICALS INC | RCKTW | 0 | $0 | +$96,420 |
| REDUCE | SILENCE THERAPEUTICS PLC | SLNCF | 0 | $0 | +$164,739 |
| REDUCE | TG THERAPEUTICS INC | TGTX | 0 | $0 | -$1.0M |
| REDUCE | WAVE LIFE SCIENCES LTD | WVE | 0 | $0 | +$54.8M |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 20259 pos · $137.6M
- 13F HOLDINGS REPORTQ/E Sep 20259 pos · $68.0M
- 13F HOLDINGS REPORTQ/E Jun 20259 pos · $58.6M
- 13F HOLDINGS REPORTQ/E Mar 202511 pos · $73.0M
- 13F HOLDINGS REPORTQ/E Dec 202411 pos · $101.9M
- 13F HOLDINGS REPORTQ/E Sep 202411 pos · $91.0M
- 13F HOLDINGS REPORTQ/E Jun 202411 pos · $77.1M
- 13F HOLDINGS REPORTQ/E Mar 202411 pos · $135.3M
- 13F HOLDINGS REPORTQ/E Dec 202311 pos · $87.2M
Top 9 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | WAVE LIFE SCIENCES LTD | WVE | 5,664,548 | $96.3M | 70.00% |
| 2 | INVIVYD INC | IVVD | 9,248,250 | $22.8M | 16.60% |
| 3 | TG THERAPEUTICS INC | TGTX | 161,600 | $4.8M | 3.50% |
| 4 | ARROWHEAD PHARMACEUTICALS IN | ARWR | 67,400 | $4.5M | 3.25% |
| 5 | FRACTYL HEALTH INC | GUTS | 1,856,117 | $4.1M | 2.97% |
| 6 | PROQR THRAPEUTICS N V | N71542109 | 1,019,498 | $2.1M | 1.50% |
| 7 | ROCKET PHARMACEUTICALS INC | RCKTW | 385,680 | $1.4M | 0.98% |
| 8 | SILENCE THERAPEUTICS PLC | SLNCF | 185,100 | $1.1M | 0.82% |
| 9 | CURIS INC | CRIS | 521,059 | $514,337 | 0.37% |