Rock Springs Capital Management LP
Position in GPCR — Structure Therapeutics Inc.
CIK 1595725
Baltimore, MD
Position in GPCR
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$30,858,459
-$21,181,354 QoQ
Shares Held
640,217
-14.4% QoQ
Ownership
0.300%
of shares outstanding
% of Portfolio
1.82%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2023
10 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in GPCR Over Time
Shares Held
Position Value (USD)
Derivatives in GPCR
reported options exposure · as of Jun 30, 2024CallValue
$2,576,112
CallShares
65,600
PutValue
$0
PutShares
0
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Biotechnology
Healthcare · as of Mar 31, 2026Rock Springs Capital Management LP holds $1,246,050,197 across 66 Biotechnology names. GPCR ranks #13 (2.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | RVMD |
Revolution Medicines, Inc.
|
1,209,465 | $117,620,471 | |
| 2 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
170,999 | $89,512,846 | |
| 3 | MIRM |
Mirum Pharmaceuticals, Inc.
|
811,294 | $74,947,339 | |
| 4 | ARGX |
Argenx SE
|
98,500 | $71,929,625 | |
| 5 | RYTM |
Rhythm Pharmaceuticals, Inc.
|
689,748 | $59,987,383 | |
| 6 | INSM |
INSMED Inc
|
314,300 | $51,394,336 | |
| 7 | ASND |
Ascendis Pharma A/S
|
194,000 | $44,373,620 | |
| 8 | XENE |
Xenon Pharmaceuticals Inc.
|
763,020 | $44,369,613 |
All Filings in GPCR
Export CSV
11 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $30,858,459 | 640,217 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $52,039,813 | 748,236 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $26,632,312 | 951,154 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $23,558,130 | 1,135,879 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $19,611,866 | 1,132,979 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $29,315,716 | 1,080,963 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $46,695,009 | 1,063,910 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $2,576,112 | 65,600 | Call | Sole | 2024-08-14 | |
| 2024-06-30 | $39,264,580 | 999,862 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $17,686,136 | 412,649 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $11,684,913 | 286,676 | Shares | Sole | 2024-02-14 | |
| No filing history on record for this holder in this stock. | ||||||