Hood River Capital Management LLC
Position in RYTM — Rhythm Pharmaceuticals, Inc.
CIK 1578177
PALM BEACH GARDENS, FL
Position in RYTM
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$20,865,146
-$4,507,936 QoQ
Shares Held
239,912
+1.2% QoQ
Ownership
0.350%
of shares outstanding
% of Portfolio
0.21%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2024
7 quarters on record
Voting authority
Sole 96.48371069392111.ToString("F0")%
Shared 0.ToString("F0")%
None 3.516289306078896.ToString("F0")%
Common Shares in RYTM Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026Hood River Capital Management LLC holds $1,320,247,818 across 19 Biotechnology names. RYTM ranks #17 (1.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | KRYS |
Krystal Biotech, Inc.
|
619,586 | $160,051,455 | |
| 2 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
249,511 | $130,611,523 | |
| 3 | PRAX |
Praxis Precision Medicines, Inc.
|
358,618 | $115,543,133 | |
| 4 | PTCT |
Ptc Therapeutics, Inc.
|
1,664,559 | $113,406,404 | |
| 5 | INSM |
INSMED Inc
|
688,554 | $112,592,350 | |
| 6 | SRRK |
Scholar Rock Holding Corp
|
2,049,679 | $100,762,219 | |
| 7 | BBIO |
BridgeBio Pharma, Inc.
|
1,265,080 | $93,944,840 | |
| 8 | PTGX |
Protagonist Therapeutics, Inc
|
829,285 | $87,406,639 |
All Filings in RYTM
Export CSV
7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $20,865,146 | 239,912 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $25,373,082 | 237,043 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $23,817,077 | 235,836 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $34,355,644 | 543,688 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $34,930,060 | 659,431 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $36,033,822 | 643,691 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $32,198,789 | 614,598 | Shares | Sole | 2024-11-14 | |
| No filing history on record for this holder in this stock. | ||||||