SUSQUEHANNA INTERNATIONAL GROUP, LLP
Position in CRBU — Caribou Biosciences, Inc.
CIK 1446194
BALA CYNWYD, PA
Position in CRBU
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$1,590,115
-$49,770 QoQ
Shares Held
836,903
-18.9% QoQ
Ownership
0.844%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#15
of 137 holders
Holding Since
Dec 2021
17 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in CRBU Over Time
Shares Held
Position Value (USD)
Derivatives in CRBU
reported options exposure · as of Mar 31, 2026CallValue
$307,990
CallShares
162,100
PutValue
$91,580
PutShares
48,200
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 Mar 31, 2026SUSQUEHANNA INTERNATIONAL GROUP, LLP holds $1,159,899,084 across 353 Biotechnology names. CRBU ranks #125 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CYTK |
Cytokinetics Inc
|
898,951 | $59,249,860 | |
| 2 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
174,268 | $57,660,053 | |
| 3 | AGIO |
Agios Pharmaceuticals, Inc.
|
1,344,953 | $45,499,759 | |
| 4 | ABVX |
Abivax S.A.
|
381,282 | $42,455,750 | |
| 5 | BBIO |
BridgeBio Pharma, Inc.
|
398,943 | $29,625,507 | |
| 6 | INSM |
INSMED Inc
|
173,630 | $28,391,977 | |
| 7 | CRSP |
CRISPR Therapeutics AG
|
593,406 | $28,228,323 | |
| 8 | TERN |
Terns Pharmaceuticals, Inc.
|
521,571 | $27,497,223 |
All Filings in CRBU
Export CSV
44 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,590,115 | 836,903 | Shares | Other | 2026-05-15 | |
| 2026-03-31 | $307,990 | 162,100 | Call | Other | 2026-05-15 | |
| 2026-03-31 | $91,580 | 48,200 | Put | Other | 2026-05-15 | |
| 2025-12-31 | $69,006 | 43,400 | Put | Other | 2026-02-17 | |
| 2025-12-31 | $22,737 | 14,300 | Call | Other | 2026-02-17 | |
| 2025-12-31 | $1,639,885 | 1,031,375 | Shares | Other | 2026-02-17 | |
| 2025-09-30 | $1,038,264 | 445,607 | Shares | Other | 2025-11-14 | |
| 2025-09-30 | $45,435 | 19,500 | Put | Other | 2025-11-14 | |
| 2025-09-30 | $51,027 | 21,900 | Call | Other | 2025-11-14 | |
| 2025-06-30 | $18,018 | 14,300 | Call | Other | 2025-08-14 | |
| 2025-06-30 | $333,440 | 264,635 | Shares | Other | 2025-08-14 | |
| 2025-06-30 | $18,018 | 14,300 | Put | Other | 2025-08-14 | |
| 2025-03-31 | $26,750 | 29,300 | Put | Other | 2025-05-14 | |
| 2025-03-31 | $184,653 | 202,249 | Shares | Other | 2025-05-14 | |
| 2024-12-31 | $22,896 | 14,400 | Call | Other | 2025-02-14 | |
| 2024-12-31 | $188,041 | 118,265 | Shares | Other | 2025-02-14 | |
| 2024-12-31 | $46,110 | 29,000 | Put | Other | 2025-02-14 | |
| 2024-06-30 | $31,816 | 19,400 | Put | Defined | 2024-08-15 | |
| 2024-06-30 | $23,780 | 14,500 | Call | Defined | 2024-08-15 | |
| 2024-06-30 | $104,222 | 63,550 | Shares | Defined | 2024-08-15 | |
| 2024-03-31 | $513,763 | 99,954 | Shares | Defined | 2024-05-07 | |
| 2024-03-31 | $208,170 | 40,500 | Call | Defined | 2024-05-07 | |
| 2024-03-31 | $371,108 | 72,200 | Put | Defined | 2024-05-07 | |
| 2023-12-31 | $673,882 | 117,606 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $169,608 | 29,600 | Put | Defined | 2024-02-14 | |
| 2023-09-30 | $283,932 | 59,400 | Call | Defined | 2023-11-14 | |
| 2023-09-30 | $766,415 | 160,338 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $305,442 | 63,900 | Put | Defined | 2023-11-14 | |
| 2023-06-30 | $541,114 | 127,321 | Shares | Defined | 2023-08-11 | |
| 2023-06-30 | $65,025 | 15,300 | Call | Defined | 2023-08-11 | |
| 2023-03-31 | $64,251 | 12,100 | Call | Defined | 2023-05-16 | |
| 2023-03-31 | $684,622 | 128,931 | Shares | Defined | 2023-05-16 | |
| 2022-12-31 | $472,884 | 75,300 | Call | Defined | 2023-02-14 | |
| 2022-12-31 | $111,733 | 17,792 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $565,416 | 53,594 | Shares | Defined | 2022-11-14 | |
| 2022-09-30 | $1,183,710 | 112,200 | Call | Defined | 2022-11-14 | |
| 2022-09-30 | $353,425 | 33,500 | Put | Defined | 2022-11-14 | |
| 2022-06-30 | $55,711 | 10,260 | Shares | Defined | 2022-08-15 | |
| 2022-06-30 | $146,067 | 26,900 | Put | Defined | 2022-08-15 | |
| 2022-06-30 | $330,144 | 60,800 | Call | Defined | 2022-08-15 | |
| 2022-03-31 | $231,611 | 25,230 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $448,173 | 29,700 | Call | Defined | 2022-04-05 | |
| 2021-12-31 | $602,091 | 39,900 | Put | Defined | 2022-04-05 | |
| 2021-12-31 | $218,246 | 14,463 | Shares | Defined | 2022-04-05 | |
| No filing history on record for this holder in this stock. | ||||||