Position in CMPX
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$22,147,108
+$8,722,108 QoQ
Shares Held
4,186,599
+67.5% QoQ
Ownership
2.32%
of shares outstanding
% of Portfolio
0.22%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2025
3 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in CMPX Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026RTW INVESTMENTS, LP holds $8,256,157,304 across 64 Biotechnology names. CMPX ranks #44 (0.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
1,993,687 | $1,043,635,333 | |
| 2 | INSM |
INSMED Inc
|
4,842,880 | $791,907,737 | |
| 3 | PTGX |
Protagonist Therapeutics, Inc
|
5,059,053 | $533,224,186 | |
| 4 | PTCT |
Ptc Therapeutics, Inc.
|
7,746,415 | $527,763,253 | |
| 5 | ARGX |
Argenx SE
|
709,446 | $518,072,941 | |
| 6 | CGON |
CG Oncology, Inc.
|
6,984,808 | $472,731,805 | |
| 7 | CELC |
Celcuity Inc.
|
3,039,621 | $346,942,340 | |
| 8 | TNGX |
Tango Therapeutics, Inc.
|
13,300,620 | $278,248,970 |
All Filings in CMPX
Export CSV
3 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $22,147,108 | 4,186,599 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $13,425,000 | 2,500,000 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $8,750,000 | 2,500,000 | Shares | Sole | 2025-11-14 | |
| No filing history on record for this holder in this stock. | ||||||