Balyasny Asset Management L.P.
Position in REGN — Regeneron Pharmaceuticals, Inc.
CIK 1218710
Chicago, IL
Position in REGN
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$5,881,229
+$4,718,406 QoQ
Shares Held
9,432
+526.7% QoQ
Ownership
0.009%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#369
of 1,322 holders
Holding Since
Sep 2020
19 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
$3,180,054
CallShares
5,100
PutValue
$5,611,860
PutShares
9,000
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, 2026Balyasny Asset Management L.P. holds $2,350,910,046 across 177 Biotechnology names. REGN ranks #83 (0.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | APGE |
Apogee Therapeutics, Inc.
|
1,665,102 | $221,008,988 | |
| 2 | INSM |
INSMED Inc
|
1,326,430 | $141,423,966 | |
| 3 | BBIO |
BridgeBio Pharma, Inc.
|
1,230,052 | $91,614,272 | |
| 4 | ABVX |
Abivax S.A.
|
603,840 | $80,467,718 | |
| 5 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
145,005 | $72,028,333 | |
| 6 | TNGX |
Tango Therapeutics, Inc.
|
2,016,379 | $63,032,007 | |
| 7 | CYTK |
Cytokinetics Inc
|
711,676 | $60,627,678 | |
| 8 | BMRN |
Biomarin Pharmaceutical Inc
|
1,054,613 | $60,344,955 |
All Filings in REGN
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $3,180,054 | 5,100 | Call | Sole | 2026-08-14 | |
| 2026-06-30 | $5,611,860 | 9,000 | Put | Sole | 2026-08-14 | |
| 2026-06-30 | $5,881,229 | 9,432 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $772,640 | 1,000 | Put | Sole | 2026-05-15 | |
| 2026-03-31 | $1,162,823 | 1,505 | Shares | Sole | 2026-05-15 | |
| 2026-03-31 | $1,313,488 | 1,700 | Call | Sole | 2026-05-15 | |
| 2025-12-31 | $29,022,312 | 37,600 | Put | Sole | 2026-02-17 | |
| 2025-12-31 | $9,262,440 | 12,000 | Call | Sole | 2026-02-17 | |
| 2025-12-31 | $52,938,703 | 68,585 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $17,767,732 | 31,600 | Put | Sole | 2025-11-14 | |
| 2025-09-30 | $4,160,798 | 7,400 | Call | Sole | 2025-11-14 | |
| 2025-09-30 | $10,599,914 | 18,852 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $7,770,000 | 14,800 | Call | Sole | 2025-08-14 | |
| 2025-06-30 | $23,362,500 | 44,500 | Put | Sole | 2025-08-14 | |
| 2025-06-30 | $80,553,900 | 153,436 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $35,136,342 | 55,400 | Put | Sole | 2025-05-15 | |
| 2025-03-31 | $21,263,829 | 33,527 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $20,508,693 | 28,791 | Shares | Sole | 2025-02-14 | |
| 2024-12-31 | $41,386,373 | 58,100 | Put | Sole | 2025-02-14 | |
| 2024-12-31 | $997,262 | 1,400 | Call | Sole | 2025-02-14 | |
| 2024-09-30 | $4,415,208 | 4,200 | Call | Sole | 2024-11-14 | |
| 2024-09-30 | $8,500,326 | 8,086 | Shares | Sole | 2024-11-14 | |
| 2024-09-30 | $67,910,104 | 64,600 | Put | Sole | 2024-11-14 | |
| 2024-06-30 | $71,995,555 | 68,500 | Put | Sole | 2024-08-14 | |
| 2024-06-30 | $2,417,369 | 2,300 | Call | Sole | 2024-08-14 | |
| 2024-06-30 | $7,857,500 | 7,476 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $60,444,372 | 62,800 | Put | Sole | 2024-05-13 | |
| 2024-03-31 | $577,494 | 600 | Call | Sole | 2024-05-13 | |
| 2024-03-31 | $9,241,828 | 9,602 | Shares | Sole | 2024-05-13 | |
| 2023-12-31 | $36,882,031 | 41,993 | Shares | Other | 2024-02-14 | |
| 2023-12-31 | $59,548,062 | 67,800 | Put | Sole | 2024-02-14 | |
| 2023-09-30 | $1,586,666 | 1,928 | Shares | Other | 2023-11-14 | |
| 2023-09-30 | $8,558,784 | 10,400 | Put | Sole | 2023-11-14 | |
| 2023-09-30 | $4,608,576 | 5,600 | Call | Sole | 2023-11-14 | |
| 2023-06-30 | $4,023,824 | 5,600 | Call | Sole | 2023-08-14 | |
| 2023-06-30 | $1,863,173 | 2,593 | Shares | Other | 2023-08-14 | |
| 2023-06-30 | $7,832,086 | 10,900 | Put | Sole | 2023-08-14 | |
| 2023-03-31 | $4,601,352 | 5,600 | Call | Sole | 2023-05-15 | |
| 2023-03-31 | $6,573,360 | 8,000 | Put | Sole | 2023-05-15 | |
| 2022-12-31 | $24,138,890 | 33,457 | Shares | Sole | 2023-02-14 | |
| 2022-12-31 | $5,771,920 | 8,000 | Put | Sole | 2023-02-14 | |
| 2022-12-31 | $4,040,344 | 5,600 | Call | Sole | 2023-02-14 | |
| 2022-09-30 | $3,926,559 | 5,700 | Call | Sole | 2022-11-15 | |
| 2022-09-30 | $4,615,429 | 6,700 | Put | Sole | 2022-11-15 | |
| 2022-06-30 | $827,582 | 1,400 | Call | Sole | 2022-08-15 | |
| 2022-06-30 | $827,582 | 1,400 | Put | Sole | 2022-08-15 | |
| 2022-06-30 | $47,741,431 | 80,763 | Shares | Other | 2022-08-15 | |
| 2021-06-30 | $37,376,938 | 66,919 | Shares | Sole | 2021-08-16 | |
| 2021-06-30 | $15,303,996 | 27,400 | Call | Sole | 2021-08-16 | |
| 2021-06-30 | $893,664 | 1,600 | Put | Sole | 2021-08-16 | |
| No filing history on record for this holder in this stock. | ||||||