M28 Capital Management LP
CIK
1807489
Location
STAMFORD, CT
Portfolio Value
Micro
$53,800,170
Diversification
Highly concentrated
Filing Date
Global Rank
#6,735
/ 8,603
▼ 1556
· as of Mar 2026
Top Industry
Biotechnology
100.0%
3Y Alpha vs SPY
-7.0%
Period ended 3 months ago
Filed May 14, 2026 · 56d
18 quarters · since Dec 2021
Clone Performance
Jul 2023–Jul 2026 · vs SPYHypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.
Cloned portfolio
+48.4%
SPY
+76.0%
Annualised alpha
-6.7%
Max drawdown
−64.7%
Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.
Portfolio Concentration
9 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025Top Position
61.8%
−8.2 pts
Top 5
95.7%
−0.6 pts
Top 10
100.0%
0.0 pts
HHI
4,379
Highly concentrated−832
Portfolio Trend
18 quarters · across all stocks
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Healthcare | 100.0% | $53,800,170 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increasedNo qualifying positions this quarter.
Trimmed
Positions the filer reduced
7 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| WVE | Wave Life Sciences Ltd. | −1,076,264 | 4,588,284 | $33,265,059 | |
| PRQR | ProQR Therapeutics N.V. | −419,705 | 599,793 | $971,664 | |
| CRIS | Curis Inc | −236,170 | 284,889 | $156,688 | |
| RCKT | Rocket Pharmaceuticals, Inc. | −174,809 | 210,871 | $754,918 | |
| SLN | Silence Therapeutics plc | −83,897 | 101,203 | $533,339 | |
| TGTX | Tg Therapeutics, Inc. | −73,246 | 88,354 | $2,935,119 | |
| ARWR | Arrowhead Pharmaceuticals, Inc. | −30,549 | 36,851 | $2,310,557 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarterNo qualifying positions this quarter.
Sold Out
Positions the filer fully exitedNo qualifying positions this quarter.
9 positions ·
$53,800,170 total
· as of Mar 31, 2026
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| WVE |
Wave Life Sciences Ltd.
Healthcare
|
Reduced | 4,588,284 | $33,265,059 | 61.83% | |
| IVVD |
Invivyd, Inc.
Healthcare
|
Held | 9,248,250 | $12,022,725 | 22.35% | |
| TGTX |
Tg Therapeutics, Inc.
Healthcare
|
Reduced | 88,354 | $2,935,119 | 5.46% | |
| ARWR |
Arrowhead Pharmaceuticals, Inc.
Healthcare
|
Reduced | 36,851 | $2,310,557 | 4.29% | |
| PRQR |
ProQR Therapeutics N.V.
Healthcare
|
Reduced | 599,793 | $971,664 | 1.81% | |
| GUTS |
Fractyl Health, Inc.
Healthcare
|
Held | 1,856,117 | $850,101 | 1.58% | |
| RCKT |
Rocket Pharmaceuticals, Inc.
Healthcare
|
Reduced | 210,871 | $754,918 | 1.40% | |
| SLN |
Silence Therapeutics plc
Healthcare
|
Reduced | 101,203 | $533,339 | 0.99% | |
| CRIS |
Curis Inc
Healthcare
|
Reduced | 284,889 | $156,688 | 0.29% |