SUSQUEHANNA INTERNATIONAL GROUP, LLP
Position in RARE — Ultragenyx Pharmaceutical Inc.
CIK 1446194
BALA CYNWYD, PA
Position in RARE
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$10,994,518
+$7,491,250 QoQ
Shares Held
524,798
+244.5% QoQ
Ownership
0.533%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in RARE Over Time
Shares Held
Position Value (USD)
Derivatives in RARE
reported options exposure · as of Mar 31, 2026CallValue
$5,109,705
CallShares
243,900
PutValue
$7,690,745
PutShares
367,100
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 $1,173,997,525 across 354 Biotechnology names. RARE ranks #28 (0.9% 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 RARE
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $5,109,705 | 243,900 | Call | Other | 2026-05-15 | |
| 2026-03-31 | $10,994,518 | 524,798 | Shares | Other | 2026-05-15 | |
| 2026-03-31 | $7,690,745 | 367,100 | Put | Other | 2026-05-15 | |
| 2025-12-31 | $11,433,300 | 497,100 | Call | Other | 2026-02-17 | |
| 2025-12-31 | $14,519,900 | 631,300 | Put | Other | 2026-02-17 | |
| 2025-12-31 | $3,503,268 | 152,316 | Shares | Other | 2026-02-17 | |
| 2025-09-30 | $7,042,510 | 234,126 | Shares | Other | 2025-11-14 | |
| 2025-09-30 | $9,276,672 | 308,400 | Put | Other | 2025-11-14 | |
| 2025-09-30 | $8,891,648 | 295,600 | Call | Other | 2025-11-14 | |
| 2025-06-30 | $18,379,980 | 505,500 | Call | Other | 2025-08-14 | |
| 2025-06-30 | $2,916,908 | 80,223 | Shares | Other | 2025-08-14 | |
| 2025-06-30 | $16,856,496 | 463,600 | Put | Other | 2025-08-14 | |
| 2025-03-31 | $4,361,856 | 120,460 | Shares | Other | 2025-05-14 | |
| 2025-03-31 | $4,008,447 | 110,700 | Call | Other | 2025-05-14 | |
| 2025-03-31 | $6,615,567 | 182,700 | Put | Other | 2025-05-14 | |
| 2024-12-31 | $4,413,143 | 104,900 | Call | Other | 2025-02-14 | |
| 2024-12-31 | $13,121,633 | 311,900 | Put | Other | 2025-02-14 | |
| 2024-12-31 | $7,590,479 | 180,425 | Shares | Other | 2025-02-14 | |
| 2024-09-30 | $10,798,920 | 194,400 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $6,684,720 | 120,337 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $10,037,885 | 180,700 | Put | Defined | 2024-11-14 | |
| 2024-06-30 | $1,022,198 | 24,871 | Shares | Defined | 2024-08-15 | |
| 2024-06-30 | $6,802,050 | 165,500 | Call | Defined | 2024-08-15 | |
| 2024-06-30 | $4,068,900 | 99,000 | Put | Defined | 2024-08-15 | |
| 2024-03-31 | $6,321,826 | 135,400 | Put | Defined | 2024-05-07 | |
| 2024-03-31 | $6,158,411 | 131,900 | Call | Defined | 2024-05-07 | |
| 2024-03-31 | $2,285,474 | 48,950 | Shares | Defined | 2024-05-07 | |
| 2023-12-31 | $8,464,140 | 177,000 | Put | Defined | 2024-02-14 | |
| 2023-12-31 | $5,331,930 | 111,500 | Call | Defined | 2024-02-14 | |
| 2023-12-31 | $1,699,570 | 35,541 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $4,529,580 | 127,057 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $8,320,710 | 233,400 | Call | Defined | 2023-11-14 | |
| 2023-09-30 | $8,085,420 | 226,800 | Put | Defined | 2023-11-14 | |
| 2023-06-30 | $5,104,928 | 110,664 | Shares | Defined | 2023-08-11 | |
| 2023-06-30 | $7,274,701 | 157,700 | Put | Defined | 2023-08-11 | |
| 2023-06-30 | $4,414,641 | 95,700 | Call | Defined | 2023-08-11 | |
| 2023-03-31 | $3,171,910 | 79,100 | Put | Defined | 2023-05-16 | |
| 2023-03-31 | $3,103,740 | 77,400 | Call | Defined | 2023-05-16 | |
| 2023-03-31 | $2,915,791 | 72,713 | Shares | Defined | 2023-05-16 | |
| 2022-12-31 | $6,110,927 | 131,900 | Call | Defined | 2023-02-14 | |
| 2022-12-31 | $5,462,307 | 117,900 | Put | Defined | 2023-02-14 | |
| 2022-12-31 | $666,642 | 14,389 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $3,796,841 | 91,689 | Shares | Defined | 2022-11-14 | |
| 2022-09-30 | $3,789,015 | 91,500 | Put | Defined | 2022-11-14 | |
| 2022-09-30 | $3,867,694 | 93,400 | Call | Defined | 2022-11-14 | |
| 2022-06-30 | $1,688,378 | 28,300 | Put | Defined | 2022-08-15 | |
| 2022-06-30 | $1,294,622 | 21,700 | Call | Defined | 2022-08-15 | |
| 2022-06-30 | $210,898 | 3,535 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $428,458 | 5,900 | Put | Defined | 2022-05-16 | |
| 2022-03-31 | $341,314 | 4,700 | Call | Defined | 2022-05-16 | |
| No filing history on record for this holder in this stock. | ||||||