Position in SRRK
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$33,990,108
+$20,974,435 QoQ
Shares Held
691,418
+134.0% QoQ
Ownership
0.577%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2024
8 quarters on record
Voting authority
Sole 99.96152833741672.ToString("F0")%
Shared 0.ToString("F0")%
None 0.0384716625832709.ToString("F0")%
Common Shares in SRRK Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026Clearbridge Investments, LLC holds $2,718,012,251 across 26 Biotechnology names. SRRK ranks #15 (1.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
2,700,975 | $1,206,093,376 | |
| 2 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
1,356,036 | $448,671,631 | |
| 3 | ARGX |
Argenx SE
|
231,356 | $168,947,719 | |
| 4 | TGTX |
Tg Therapeutics, Inc.
|
3,210,930 | $106,667,094 | |
| 5 | INSM |
INSMED Inc
|
643,435 | $105,214,491 | |
| 6 | BBIO |
BridgeBio Pharma, Inc.
|
951,200 | $70,636,112 | |
| 7 | PTGX |
Protagonist Therapeutics, Inc
|
621,820 | $65,539,828 | |
| 8 | MIRM |
Mirum Pharmaceuticals, Inc.
|
671,870 | $62,067,350 |
All Filings in SRRK
Export CSV
8 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $33,990,108 | 691,418 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $13,015,673 | 295,475 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $12,976,240 | 348,449 | Shares | Sole | 2025-11-13 | |
| 2025-06-30 | $10,073,873 | 284,412 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $11,043,267 | 343,492 | Shares | Sole | 2025-05-13 | |
| 2024-12-31 | $18,212,216 | 421,384 | Shares | Sole | 2025-02-12 | |
| 2024-09-30 | $7,404,403 | 924,395 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $6,223,384 | 747,105 | Shares | Sole | 2024-08-27 | |
| No filing history on record for this holder in this stock. | ||||||