Position in GERN
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$37,169,827
+$5,020,740 QoQ
Shares Held
29,038,928
+34.6% QoQ
Ownership
4.52%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#5
of 258 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in GERN Over Time
Shares Held
Position Value (USD)
Derivatives in GERN
reported options exposure · as of Jun 30, 2026CallValue
$109,568
CallShares
85,600
PutValue
$549,760
PutShares
429,500
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 Jun 30, 2026CITADEL ADVISORS LLC holds $6,088,670,159 across 436 Biotechnology names. GERN ranks #32 (0.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ONC |
BeOne Medicines Ltd.
|
1,425,517 | $406,229,578 | |
| 2 | BBIO |
BridgeBio Pharma, Inc.
|
3,760,028 | $280,046,885 | |
| 3 | INSM |
INSMED Inc
|
2,556,973 | $272,624,460 | |
| 4 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
507,233 | $272,358,759 | |
| 5 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
510,430 | $253,545,893 | |
| 6 | JAZZ |
Jazz Pharmaceuticals plc
|
1,006,676 | $242,578,715 | |
| 7 | MANE |
Veradermics, Inc
|
1,877,775 | $230,853,658 | |
| 8 | ROIV |
Roivant Sciences Ltd.
|
5,576,261 | $197,343,876 |
All Filings in GERN
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $37,169,827 | 29,038,928 | Shares | Defined | 2026-08-14 | |
| 2026-06-30 | $549,760 | 429,500 | Put | Defined | 2026-08-14 | |
| 2026-06-30 | $109,568 | 85,600 | Call | Defined | 2026-08-14 | |
| 2026-03-31 | $673,331 | 451,900 | Put | Defined | 2026-05-15 | |
| 2026-03-31 | $32,149,087 | 21,576,569 | Shares | Defined | 2026-05-15 | |
| 2026-03-31 | $122,478 | 82,200 | Call | Defined | 2026-05-15 | |
| 2025-12-31 | $13,102,036 | 9,925,786 | Shares | Defined | 2026-02-17 | |
| 2025-12-31 | $401,808 | 304,400 | Call | Defined | 2026-02-17 | |
| 2025-12-31 | $703,296 | 532,800 | Put | Defined | 2026-02-17 | |
| 2025-09-30 | $558,549 | 407,700 | Call | Defined | 2025-11-14 | |
| 2025-09-30 | $21,515,942 | 15,705,068 | Shares | Defined | 2025-11-14 | |
| 2025-09-30 | $231,667 | 169,100 | Put | Defined | 2025-11-14 | |
| 2025-06-30 | $16,970,619 | 12,035,901 | Shares | Defined | 2025-08-14 | |
| 2025-06-30 | $211,782 | 150,200 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $479,964 | 340,400 | Call | Defined | 2025-08-14 | |
| 2025-03-31 | $378,420 | 238,000 | Call | Defined | 2025-05-15 | |
| 2025-03-31 | $10,594,669 | 6,663,314 | Shares | Defined | 2025-05-15 | |
| 2025-03-31 | $359,181 | 225,900 | Put | Defined | 2025-05-15 | |
| 2024-12-31 | $894,558 | 252,700 | Call | Defined | 2025-02-14 | |
| 2024-12-31 | $14,811,872 | 4,184,145 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $1,077,576 | 304,400 | Put | Defined | 2025-02-14 | |
| 2024-09-30 | $21,266,866 | 4,684,332 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $1,193,112 | 262,800 | Put | Defined | 2024-11-14 | |
| 2024-09-30 | $958,394 | 211,100 | Call | Defined | 2024-11-14 | |
| 2024-06-30 | $969,688 | 228,700 | Call | Defined | 2024-08-14 | |
| 2024-06-30 | $9,611,668 | 2,266,903 | Shares | Defined | 2024-08-14 | |
| 2024-06-30 | $1,122,752 | 264,800 | Put | Defined | 2024-08-14 | |
| 2024-03-31 | $3,254,159 | 986,109 | Shares | Defined | 2024-05-15 | |
| 2024-03-31 | $602,250 | 182,500 | Put | Defined | 2024-05-15 | |
| 2024-03-31 | $1,080,420 | 327,400 | Call | Defined | 2024-05-15 | |
| 2023-12-31 | $381,699 | 180,900 | Put | Defined | 2024-02-14 | |
| 2023-12-31 | $1,357,076 | 643,164 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $291,180 | 138,000 | Call | Defined | 2024-02-14 | |
| 2023-09-30 | $393,896 | 185,800 | Call | Defined | 2023-11-14 | |
| 2023-09-30 | $830,422 | 391,709 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $290,440 | 137,000 | Put | Defined | 2023-11-14 | |
| 2023-06-30 | $478,932 | 149,200 | Call | Defined | 2023-08-14 | |
| 2023-06-30 | $392,904 | 122,400 | Put | Defined | 2023-08-14 | |
| 2023-06-30 | $8,518,604 | 2,653,771 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $14,948,702 | 6,888,803 | Shares | Defined | 2023-05-15 | |
| 2023-03-31 | $315,518 | 145,400 | Put | Defined | 2023-05-15 | |
| 2023-03-31 | $158,410 | 73,000 | Call | Defined | 2023-05-15 | |
| 2022-12-31 | $183,678 | 75,900 | Put | Defined | 2023-02-14 | |
| 2022-12-31 | $881,606 | 364,300 | Call | Defined | 2023-02-14 | |
| 2022-12-31 | $773,690 | 319,707 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $143,442 | 61,300 | Put | Defined | 2022-11-14 | |
| 2022-09-30 | $526,500 | 225,000 | Call | Defined | 2022-11-14 | |
| 2022-09-30 | $2,765,481 | 1,181,830 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $159,335 | 102,797 | Shares | Defined | 2022-08-15 | |
| 2022-06-30 | $67,270 | 43,400 | Put | Defined | 2022-08-15 | |
| No filing history on record for this holder in this stock. | ||||||