CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
PensionPosition in GERN — Geron Corp
CIK 1081019
WEST SACRAMENTO, CA
Position in GERN
as of Mar 31, 2026
· filed May 18, 2026
Position Value
$1,098,343
+$471,004 QoQ
Shares Held
737,143
+55.1% QoQ
Ownership
0.115%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in GERN Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM holds $855,427,423 across 222 Biotechnology names. GERN ranks #89 (0.1% 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 GERN
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,098,343 | 737,143 | Shares | Sole | 2026-05-18 | |
| 2025-12-31 | $627,339 | 475,257 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $656,819 | 479,430 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $676,099 | 479,503 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $771,089 | 484,962 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $1,716,765 | 484,962 | Shares | Sole | 2025-03-18 | |
| 2024-09-30 | $1,961,806 | 432,116 | Shares | Sole | 2025-04-04 | |
| 2024-06-30 | $1,757,361 | 414,472 | Shares | Sole | 2025-04-08 | |
| 2024-03-31 | $1,378,350 | 417,682 | Shares | Sole | 2024-05-16 | |
| 2023-12-31 | $915,507 | 433,890 | Shares | Sole | 2024-02-13 | |
| 2023-09-30 | $1,090,860 | 514,557 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $1,825,039 | 568,548 | Shares | Sole | 2023-08-21 | |
| 2023-03-31 | $1,053,610 | 485,535 | Shares | Sole | 2023-05-09 | |
| 2022-12-31 | $1,065,557 | 440,313 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $1,015,948 | 434,166 | Shares | Sole | 2022-11-21 | |
| 2022-06-30 | $681,593 | 439,738 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $504,288 | 370,800 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $453,409 | 371,647 | Shares | Sole | 2022-02-15 | |
| 2021-09-30 | $491,903 | 359,054 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $587,262 | 416,498 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $684,484 | 433,218 | Shares | Sole | 2021-05-18 | |
| 2020-12-31 | $691,303 | 434,782 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $756,520 | 434,782 | Shares | Sole | 2020-11-17 | |
| 2020-06-30 | $624,081 | 286,276 | Shares | Sole | 2020-08-17 | |
| 2020-03-31 | $340,668 | 286,276 | Shares | Sole | 2020-05-13 | |
| No filing history on record for this holder in this stock. | ||||||