Bronte Capital Management Pty Ltd.
Position in REGN — Regeneron Pharmaceuticals, Inc.
CIK 1471085
Bondi Junction, C3
Position in REGN
as of Mar 31, 2026
· filed Apr 27, 2026
Position Value
$133,502,147
-$2,939,769 QoQ
Shares Held
172,787
-2.3% QoQ
Ownership
0.165%
of shares outstanding
% of Portfolio
16.74%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2020
22 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in REGN Over Time
Shares Held
Position Value (USD)
Derivatives in REGN
reported options exposure · as of Mar 31, 2026CallValue
$53,003,104
CallShares
68,600
PutValue
$0
PutShares
0
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, 2026Bronte Capital Management Pty Ltd. holds $160,316,289 across 13 Biotechnology names. REGN ranks #1 (83.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | REGN |
Regeneron Pharmaceuticals, Inc.
This page
|
172,787 | $133,502,147 | |
| 2 | NKTR |
Nektar Therapeutics
|
198,256 | $14,264,519 | |
| 3 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
37,245 | $12,323,253 | |
| 4 | ALEC |
Alector, Inc.
|
19,282 | $41,456 | |
| 5 | CHRS |
Coherus Oncology, Inc.
|
19,282 | $32,586 | |
| 6 | CRBU |
Caribou Biosciences, Inc.
|
15,627 | $29,691 | |
| 7 | FATE |
Fate Therapeutics Inc
|
22,853 | $27,423 | |
| 8 | CCCC |
C4 Therapeutics, Inc.
|
10,033 | $26,386 |
All Filings in REGN
Export CSV
24 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $133,502,147 | 172,787 | Shares | Sole | 2026-04-27 | |
| 2026-03-31 | $53,003,104 | 68,600 | Call | Sole | 2026-04-27 | |
| 2025-12-31 | $45,771,891 | 59,300 | Call | Sole | 2026-02-03 | |
| 2025-12-31 | $136,441,916 | 176,768 | Shares | Sole | 2026-02-03 | |
| 2025-09-30 | $101,367,722 | 180,283 | Shares | Sole | 2025-11-05 | |
| 2025-06-30 | $98,631,750 | 187,870 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $98,110,941 | 154,693 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $108,831,914 | 152,783 | Shares | Sole | 2025-02-10 | |
| 2024-09-30 | $144,064,032 | 137,042 | Shares | Sole | 2024-11-05 | |
| 2024-06-30 | $146,570,337 | 139,454 | Shares | Sole | 2024-08-07 | |
| 2024-03-31 | $139,631,311 | 145,073 | Shares | Sole | 2024-05-13 | |
| 2023-12-31 | $127,721,810 | 145,421 | Shares | Sole | 2024-02-07 | |
| 2023-09-30 | $116,401,108 | 141,442 | Shares | Sole | 2023-11-06 | |
| 2023-06-30 | $99,385,578 | 138,316 | Shares | Sole | 2023-08-08 | |
| 2023-03-31 | $112,053,602 | 136,373 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $102,973,217 | 142,723 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $101,384,442 | 147,175 | Shares | Sole | 2022-11-03 | |
| 2022-06-30 | $88,190,093 | 149,189 | Shares | Sole | 2022-08-08 | |
| 2022-03-31 | $97,092,253 | 139,017 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $82,388,099 | 130,460 | Shares | Sole | 2022-02-10 | |
| 2021-09-30 | $75,177,880 | 124,224 | Shares | Sole | 2021-11-09 | |
| 2021-06-30 | $65,611,135 | 117,469 | Shares | Sole | 2021-08-09 | |
| 2021-03-31 | $28,098,365 | 59,387 | Shares | Sole | 2021-04-13 | |
| 2020-12-31 | $9,204,694 | 19,053 | Shares | Sole | 2021-02-03 | |
| No filing history on record for this holder in this stock. | ||||||