CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
PensionPosition in DYN — Dyne Therapeutics, Inc.
CIK 1081019
WEST SACRAMENTO, CA
Position in DYN
as of Mar 31, 2026
· filed May 18, 2026
Position Value
$2,532,090
+$169,242 QoQ
Shares Held
139,663
+15.6% QoQ
Ownership
0.098%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2020
22 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in DYN Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM holds $884,195,299 across 222 Biotechnology names. DYN ranks #59 (0.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
373,481 | $166,774,205 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
154,201 | $119,141,860 | |
| 3 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
196,863 | $65,136,060 | |
| 4 | INSM |
INSMED Inc
|
303,182 | $49,576,320 | |
| 5 | RPRX |
Royalty Pharma plc
|
759,042 | $36,411,244 | |
| 6 | INCY |
Incyte Corp
|
241,287 | $22,709,932 | |
| 7 | MRNA |
Moderna, Inc.
|
407,190 | $20,685,252 | |
| 8 | RVMD |
Revolution Medicines, Inc.
|
165,277 | $16,073,188 |
All Filings in DYN
Export CSV
22 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $2,532,090 | 139,663 | Shares | Sole | 2026-05-18 | |
| 2025-12-31 | $2,362,848 | 120,800 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $1,127,874 | 89,160 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $967,346 | 101,612 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $561,022 | 53,635 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $1,263,640 | 53,635 | Shares | Sole | 2025-03-18 | |
| 2024-09-30 | $1,899,521 | 52,882 | Shares | Sole | 2025-04-04 | |
| 2024-06-30 | $1,924,293 | 54,528 | Shares | Sole | 2025-04-08 | |
| 2024-03-31 | $1,271,417 | 44,784 | Shares | Sole | 2024-05-16 | |
| 2023-12-31 | $458,411 | 34,467 | Shares | Sole | 2024-02-13 | |
| 2023-09-30 | $314,961 | 35,152 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $447,547 | 39,782 | Shares | Sole | 2023-08-21 | |
| 2023-03-31 | $399,444 | 34,674 | Shares | Sole | 2023-05-09 | |
| 2022-12-31 | $407,029 | 35,119 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $441,032 | 34,727 | Shares | Sole | 2022-11-21 | |
| 2022-06-30 | $241,755 | 35,190 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $313,097 | 32,479 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $423,854 | 35,648 | Shares | Sole | 2022-02-15 | |
| 2021-09-30 | $571,371 | 35,183 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $871,287 | 41,411 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $377,379 | 24,300 | Shares | Sole | 2021-05-18 | |
| 2020-12-31 | $452,004 | 21,524 | Shares | Sole | 2021-02-16 | |
| No filing history on record for this holder in this stock. | ||||||