CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
PensionPosition in ALNY — Alnylam Pharmaceuticals, Inc.
CIK 1081019
WEST SACRAMENTO, CA
Position in ALNY
as of Jun 30, 2026
· filed Aug 24, 2026
Position Value
$60,164,156
-$4,971,904 QoQ
Shares Held
199,861
+1.5% QoQ
Ownership
0.149%
of shares outstanding
% of Portfolio
0.06%
of 13F equity value
Holder Rank
#73
of 784 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in ALNY Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM holds $999,742,756 across 262 Biotechnology names. ALNY ranks #3 (6.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
383,491 | $190,491,484 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
156,724 | $97,723,682 | |
| 3 | ALNY |
Alnylam Pharmaceuticals, Inc.
This page
|
199,861 | $60,164,156 | |
| 4 | RVMD |
Revolution Medicines, Inc.
|
238,463 | $44,659,350 | |
| 5 | RPRX |
Royalty Pharma plc
|
699,205 | $39,204,424 | |
| 6 | INSM |
INSMED Inc
|
304,798 | $32,497,562 | |
| 7 | INCY |
Incyte Corp
|
249,988 | $28,338,639 | |
| 8 | MRNA |
Moderna, Inc.
|
395,278 | $27,681,318 |
All Filings in ALNY
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $60,164,156 | 199,861 | Shares | Sole | 2026-08-24 | |
| 2026-03-31 | $65,136,060 | 196,863 | Shares | Sole | 2026-05-18 | |
| 2025-12-31 | $80,252,132 | 201,816 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $92,922,768 | 203,778 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $64,994,954 | 199,316 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $53,313,558 | 197,443 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $46,205,942 | 196,362 | Shares | Sole | 2025-03-18 | |
| 2024-09-30 | $52,620,114 | 191,325 | Shares | Sole | 2025-04-04 | |
| 2024-06-30 | $47,043,342 | 193,594 | Shares | Sole | 2025-04-08 | |
| 2024-03-31 | $28,607,420 | 191,418 | Shares | Sole | 2024-05-16 | |
| 2023-12-31 | $36,669,944 | 191,578 | Shares | Sole | 2024-02-13 | |
| 2023-09-30 | $33,689,910 | 190,231 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $37,721,704 | 198,598 | Shares | Sole | 2023-08-21 | |
| 2023-03-31 | $40,717,443 | 203,262 | Shares | Sole | 2023-05-09 | |
| 2022-12-31 | $47,941,372 | 201,731 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $39,701,936 | 198,351 | Shares | Sole | 2022-11-21 | |
| 2022-06-30 | $29,165,770 | 199,971 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $32,529,490 | 199,213 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $35,566,352 | 209,732 | Shares | Sole | 2022-02-15 | |
| 2021-09-30 | $38,780,063 | 205,392 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $35,570,551 | 209,831 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $30,536,008 | 216,276 | Shares | Sole | 2021-05-18 | |
| 2020-12-31 | $27,976,822 | 215,256 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $30,671,659 | 210,657 | Shares | Sole | 2020-11-17 | |
| 2020-06-30 | $30,194,889 | 203,868 | Shares | Sole | 2020-08-17 | |
| 2020-03-31 | $20,377,590 | 187,208 | Shares | Sole | 2020-05-13 | |
| No filing history on record for this holder in this stock. | ||||||