SUSQUEHANNA INTERNATIONAL GROUP, LLP
Position in REGN — Regeneron Pharmaceuticals, Inc.
CIK 1446194
BALA CYNWYD, PA
Position in REGN
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$112,373,755
+$88,715,519 QoQ
Shares Held
180,219
+488.6% QoQ
Ownership
0.175%
of shares outstanding
% of Portfolio
0.12%
of 13F equity value
Holder Rank
#73
of 1,297 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in REGN Over Time
Shares Held
Position Value (USD)
Derivatives in REGN
reported options exposure · as of Jun 30, 2026CallValue
$236,259,306
CallShares
378,900
PutValue
$432,674,406
PutShares
693,900
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, 2026SUSQUEHANNA INTERNATIONAL GROUP, LLP holds $1,649,924,448 across 349 Biotechnology names. REGN ranks #3 (6.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ABVX |
Abivax S.A.
|
1,053,896 | $140,442,180 | |
| 2 | CYTK |
Cytokinetics Inc
|
1,549,458 | $131,998,327 | |
| 3 | REGN |
Regeneron Pharmaceuticals, Inc.
This page
|
180,219 | $112,373,755 | |
| 4 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
294,460 | $88,641,293 | |
| 5 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
148,610 | $79,796,139 | |
| 6 | INSM |
INSMED Inc
|
729,354 | $77,763,723 | |
| 7 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
144,174 | $71,615,550 | |
| 8 | AGIO |
Agios Pharmaceuticals, Inc.
|
1,375,558 | $51,046,957 |
All Filings in REGN
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $112,373,755 | 180,219 | Shares | Other | 2026-08-14 | |
| 2026-06-30 | $432,674,406 | 693,900 | Put | Other | 2026-08-14 | |
| 2026-06-30 | $236,259,306 | 378,900 | Call | Other | 2026-08-14 | |
| 2026-03-31 | $23,658,236 | 30,620 | Shares | Other | 2026-05-15 | |
| 2026-03-31 | $259,375,248 | 335,700 | Call | Other | 2026-05-15 | |
| 2026-03-31 | $469,610,592 | 607,800 | Put | Other | 2026-05-15 | |
| 2025-12-31 | $471,226,635 | 610,500 | Put | Other | 2026-02-17 | |
| 2025-12-31 | $493,688,052 | 639,600 | Call | Other | 2026-02-17 | |
| 2025-12-31 | $71,367,872 | 92,461 | Shares | Other | 2026-02-17 | |
| 2025-09-30 | $350,968,934 | 624,200 | Call | Other | 2025-11-14 | |
| 2025-09-30 | $370,142,341 | 658,300 | Put | Other | 2025-11-14 | |
| 2025-09-30 | $106,930,259 | 190,176 | Shares | Other | 2025-11-14 | |
| 2025-06-30 | $289,117,500 | 550,700 | Call | Other | 2025-08-14 | |
| 2025-06-30 | $378,157,500 | 720,300 | Put | Other | 2025-08-14 | |
| 2025-06-30 | $86,148,300 | 164,092 | Shares | Other | 2025-08-14 | |
| 2025-03-31 | $334,239,210 | 527,000 | Put | Other | 2025-05-14 | |
| 2025-03-31 | $247,222,854 | 389,800 | Call | Other | 2025-05-14 | |
| 2025-03-31 | $96,059,207 | 151,458 | Shares | Other | 2025-05-14 | |
| 2024-12-31 | $280,301,855 | 393,500 | Put | Other | 2025-02-14 | |
| 2024-12-31 | $58,547,826 | 82,192 | Shares | Other | 2025-02-14 | |
| 2024-12-31 | $264,915,527 | 371,900 | Call | Other | 2025-02-14 | |
| 2024-09-30 | $35,227,052 | 33,510 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $314,531,008 | 299,200 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $525,725,124 | 500,100 | Put | Defined | 2024-11-14 | |
| 2024-06-30 | $353,251,183 | 336,100 | Put | Defined | 2024-08-15 | |
| 2024-06-30 | $240,370,561 | 228,700 | Call | Defined | 2024-08-15 | |
| 2024-06-30 | $31,963,923 | 30,412 | Shares | Defined | 2024-08-15 | |
| 2024-03-31 | $35,586,141 | 36,973 | Shares | Defined | 2024-05-07 | |
| 2024-03-31 | $369,307,413 | 383,700 | Put | Defined | 2024-05-07 | |
| 2024-03-31 | $237,253,785 | 246,500 | Call | Defined | 2024-05-07 | |
| 2023-12-31 | $505,016,750 | 575,000 | Put | Defined | 2024-02-14 | |
| 2023-12-31 | $406,209,125 | 462,500 | Call | Defined | 2024-02-14 | |
| 2023-12-31 | $79,219,121 | 90,197 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $45,147,583 | 54,860 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $477,563,688 | 580,300 | Put | Defined | 2023-11-14 | |
| 2023-09-30 | $364,982,760 | 443,500 | Call | Defined | 2023-11-14 | |
| 2023-06-30 | $429,902,482 | 598,300 | Call | Defined | 2023-08-11 | |
| 2023-06-30 | $53,184,174 | 74,017 | Shares | Defined | 2023-08-11 | |
| 2023-06-30 | $594,376,288 | 827,200 | Put | Defined | 2023-08-11 | |
| 2023-03-31 | $697,844,331 | 849,300 | Call | Defined | 2023-05-16 | |
| 2023-03-31 | $79,047,939 | 96,204 | Shares | Defined | 2023-05-16 | |
| 2023-03-31 | $838,349,901 | 1,020,300 | Put | Defined | 2023-05-16 | |
| 2022-12-31 | $497,611,653 | 689,700 | Call | Defined | 2023-02-14 | |
| 2022-12-31 | $58,077,779 | 80,497 | Shares | Defined | 2023-02-14 | |
| 2022-12-31 | $463,485,176 | 642,400 | Put | Defined | 2023-02-14 | |
| 2022-09-30 | $448,316,596 | 650,800 | Call | Defined | 2022-11-14 | |
| 2022-09-30 | $472,495,933 | 685,900 | Put | Defined | 2022-11-14 | |
| 2022-09-30 | $15,941,827 | 23,142 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $28,818,178 | 48,751 | Shares | Defined | 2022-08-15 | |
| 2022-06-30 | $227,289,485 | 384,500 | Call | Defined | 2022-08-15 | |
| No filing history on record for this holder in this stock. | ||||||