Position in REGN
as of Jun 30, 2026
· filed Aug 3, 2026
Position Value
$14,089,509
+$10,981,951 QoQ
Shares Held
22,596
+461.8% QoQ
Ownership
0.022%
of shares outstanding
% of Portfolio
0.11%
of 13F equity value
Holder Rank
#246
of 1,297 holders
Holding Since
Mar 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
$62,354
CallShares
100
PutValue
$187,062
PutShares
300
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, 2026Walleye Capital LLC holds $328,313,978 across 124 Biotechnology names. REGN ranks #5 (4.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ASND |
Ascendis Pharma A/S
|
126,005 | $33,608,053 | |
| 2 | CYTK |
Cytokinetics Inc
|
239,728 | $20,422,428 | |
| 3 | BMRN |
Biomarin Pharmaceutical Inc
|
288,233 | $16,492,692 | |
| 4 | IDYA |
IDEAYA Biosciences, Inc.
|
386,183 | $14,393,040 | |
| 5 | REGN |
Regeneron Pharmaceuticals, Inc.
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|
22,596 | $14,089,509 | |
| 6 | RARE |
Ultragenyx Pharmaceutical Inc.
|
334,854 | $11,180,775 | |
| 7 | TYRA |
Tyra Biosciences, Inc.
|
347,898 | $11,111,862 | |
| 8 | BCAX |
Bicara Therapeutics Inc.
|
353,226 | $10,487,279 |
All Filings in REGN
Export CSV
49 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $14,089,509 | 22,596 | Shares | Sole | 2026-08-03 | |
| 2026-06-30 | $187,062 | 300 | Put | Sole | 2026-08-03 | |
| 2026-06-30 | $62,354 | 100 | Call | Sole | 2026-08-03 | |
| 2026-03-31 | $927,168 | 1,200 | Call | Sole | 2026-05-13 | |
| 2026-03-31 | $386,320 | 500 | Put | Sole | 2026-05-13 | |
| 2026-03-31 | $3,107,558 | 4,022 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $9,571,188 | 12,400 | Put | Sole | 2026-02-13 | |
| 2025-12-31 | $2,933,106 | 3,800 | Call | Sole | 2026-02-13 | |
| 2025-12-31 | $27,401,385 | 35,500 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $2,080,399 | 3,700 | Call | Sole | 2025-11-14 | |
| 2025-09-30 | $49,184,005 | 87,474 | Shares | Sole | 2025-11-14 | |
| 2025-09-30 | $3,092,485 | 5,500 | Put | Sole | 2025-11-14 | |
| 2025-06-30 | $32,429,775 | 61,771 | Shares | Sole | 2025-08-13 | |
| 2025-06-30 | $4,410,000 | 8,400 | Call | Sole | 2025-08-13 | |
| 2025-06-30 | $5,617,500 | 10,700 | Put | Sole | 2025-08-13 | |
| 2025-03-31 | $5,198,149 | 8,196 | Shares | Sole | 2025-05-14 | |
| 2025-03-31 | $3,551,688 | 5,600 | Put | Sole | 2025-05-14 | |
| 2025-03-31 | $3,868,803 | 6,100 | Call | Sole | 2025-05-14 | |
| 2024-12-31 | $5,841,106 | 8,200 | Call | Sole | 2025-02-13 | |
| 2024-12-31 | $10,328,785 | 14,500 | Put | Sole | 2025-02-13 | |
| 2024-12-31 | $7,176,012 | 10,074 | Shares | Sole | 2025-02-13 | |
| 2024-09-30 | $11,248,268 | 10,700 | Put | Sole | 2024-11-14 | |
| 2024-09-30 | $7,639,361 | 7,267 | Shares | Sole | 2024-11-14 | |
| 2024-09-30 | $8,515,044 | 8,100 | Call | Sole | 2024-11-14 | |
| 2024-06-30 | $15,975,656 | 15,200 | Put | Sole | 2024-08-14 | |
| 2024-06-30 | $5,150,047 | 4,900 | Shares | Sole | 2024-08-14 | |
| 2024-06-30 | $8,513,343 | 8,100 | Call | Sole | 2024-08-14 | |
| 2024-03-31 | $19,057,302 | 19,800 | Put | Sole | 2024-05-15 | |
| 2024-03-31 | $4,307,142 | 4,475 | Shares | Sole | 2024-05-15 | |
| 2024-03-31 | $13,571,109 | 14,100 | Call | Sole | 2024-05-15 | |
| 2023-12-31 | $2,898,357 | 3,300 | Call | Sole | 2024-02-14 | |
| 2023-12-31 | $8,080,268 | 9,200 | Put | Sole | 2024-02-14 | |
| 2023-12-31 | $1,800,494 | 2,050 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $8,065,008 | 9,800 | Call | Sole | 2023-11-21 | |
| 2023-09-30 | $10,451,592 | 12,700 | Put | Sole | 2023-11-21 | |
| 2023-06-30 | $15,572,917 | 21,673 | Shares | Sole | 2023-08-14 | |
| 2023-06-30 | $4,670,510 | 6,500 | Call | Sole | 2023-08-14 | |
| 2023-06-30 | $718,540 | 1,000 | Put | Sole | 2023-08-14 | |
| 2023-03-31 | $164,334 | 200 | Shares | Sole | 2023-05-15 | |
| 2023-03-31 | $5,258,688 | 6,400 | Call | Sole | 2023-05-15 | |
| 2023-03-31 | $1,561,173 | 1,900 | Put | Sole | 2023-05-15 | |
| 2022-12-31 | $216,447 | 300 | Put | Sole | 2023-02-14 | |
| 2022-12-31 | $216,447 | 300 | Call | Sole | 2023-02-14 | |
| 2022-09-30 | $206,661 | 300 | Call | Sole | 2022-11-14 | |
| 2022-09-30 | $964,418 | 1,400 | Put | Sole | 2022-11-14 | |
| 2021-06-30 | $1,907,414 | 3,415 | Shares | Sole | 2021-08-16 | |
| 2020-09-30 | $329,710 | 589 | Shares | Sole | 2020-11-16 | |
| 2020-03-31 | $195,316 | 400 | Put | Sole | 2020-05-15 | |
| 2020-03-31 | $228,519 | 468 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||