Position in REGN
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$35,918,397
-$926,485 QoQ
Shares Held
57,604
+20.8% QoQ
Ownership
0.056%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#149
of 1,322 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
$169,166,402
CallShares
271,300
PutValue
$164,988,684
PutShares
264,600
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, 2026CITADEL ADVISORS LLC holds $6,088,670,159 across 436 Biotechnology names. REGN ranks #35 (0.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ONC |
BeOne Medicines Ltd.
|
1,425,517 | $406,229,578 | |
| 2 | BBIO |
BridgeBio Pharma, Inc.
|
3,760,028 | $280,046,885 | |
| 3 | INSM |
INSMED Inc
|
2,556,973 | $272,624,460 | |
| 4 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
507,233 | $272,358,759 | |
| 5 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
510,430 | $253,545,893 | |
| 6 | JAZZ |
Jazz Pharmaceuticals plc
|
1,006,676 | $242,578,715 | |
| 7 | MANE |
Veradermics, Inc
|
1,877,775 | $230,853,658 | |
| 8 | ROIV |
Roivant Sciences Ltd.
|
5,576,261 | $197,343,876 |
All Filings in REGN
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $169,166,402 | 271,300 | Call | Defined | 2026-08-14 | |
| 2026-06-30 | $164,988,684 | 264,600 | Put | Defined | 2026-08-14 | |
| 2026-06-30 | $35,918,397 | 57,604 | Shares | Defined | 2026-08-14 | |
| 2026-03-31 | $165,113,168 | 213,700 | Call | Defined | 2026-05-15 | |
| 2026-03-31 | $36,844,882 | 47,687 | Shares | Defined | 2026-05-15 | |
| 2026-03-31 | $133,203,136 | 172,400 | Put | Defined | 2026-05-15 | |
| 2025-12-31 | $211,492,380 | 274,000 | Put | Defined | 2026-02-17 | |
| 2025-12-31 | $111,897,993 | 144,970 | Shares | Defined | 2026-02-17 | |
| 2025-12-31 | $204,777,111 | 265,300 | Call | Defined | 2026-02-17 | |
| 2025-09-30 | $117,458,203 | 208,900 | Call | Defined | 2025-11-14 | |
| 2025-09-30 | $92,605,869 | 164,700 | Put | Defined | 2025-11-14 | |
| 2025-09-30 | $129,449,734 | 230,227 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $152,512,500 | 290,500 | Call | Defined | 2025-08-14 | |
| 2025-06-30 | $103,845,000 | 197,800 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $357,265,125 | 680,505 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $120,123,162 | 189,400 | Put | Defined | 2025-05-15 | |
| 2025-03-31 | $144,604,440 | 228,000 | Call | Defined | 2025-05-15 | |
| 2025-03-31 | $47,505,095 | 74,902 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $120,098,838 | 168,600 | Call | Defined | 2025-02-14 | |
| 2024-12-31 | $147,666,009 | 207,300 | Put | Defined | 2025-02-14 | |
| 2024-12-31 | $137,013,826 | 192,346 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $73,860,122 | 70,260 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $211,194,116 | 200,900 | Put | Defined | 2024-11-14 | |
| 2024-09-30 | $152,850,296 | 145,400 | Call | Defined | 2024-11-14 | |
| 2024-06-30 | $149,981,981 | 142,700 | Put | Defined | 2024-08-14 | |
| 2024-06-30 | $87,761,005 | 83,500 | Call | Defined | 2024-08-14 | |
| 2024-06-30 | $115,146,642 | 109,556 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $75,630,538 | 78,578 | Shares | Defined | 2024-05-15 | |
| 2024-03-31 | $118,290,021 | 122,900 | Call | Defined | 2024-05-15 | |
| 2024-03-31 | $203,470,386 | 211,400 | Put | Defined | 2024-05-15 | |
| 2023-12-31 | $257,251,141 | 292,900 | Put | Defined | 2024-02-14 | |
| 2023-12-31 | $212,019,206 | 241,400 | Call | Defined | 2024-02-14 | |
| 2023-12-31 | $249,953,428 | 284,591 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $53,044,708 | 64,456 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $226,231,704 | 274,900 | Put | Defined | 2023-11-14 | |
| 2023-09-30 | $212,735,160 | 258,500 | Call | Defined | 2023-11-14 | |
| 2023-06-30 | $216,567,956 | 301,400 | Call | Defined | 2023-08-14 | |
| 2023-06-30 | $28,544,719 | 39,726 | Shares | Defined | 2023-08-14 | |
| 2023-06-30 | $187,826,356 | 261,400 | Put | Defined | 2023-08-14 | |
| 2023-03-31 | $239,308,100 | 291,246 | Shares | Defined | 2023-05-15 | |
| 2023-03-31 | $374,681,520 | 456,000 | Call | Defined | 2023-05-15 | |
| 2023-03-31 | $387,335,238 | 471,400 | Put | Defined | 2023-05-15 | |
| 2022-12-31 | $275,464,882 | 381,800 | Call | Defined | 2023-02-14 | |
| 2022-12-31 | $55,609,562 | 77,076 | Shares | Defined | 2023-02-14 | |
| 2022-12-31 | $413,341,621 | 572,900 | Put | Defined | 2023-02-14 | |
| 2022-09-30 | $326,248,832 | 473,600 | Call | Defined | 2022-11-14 | |
| 2022-09-30 | $415,801,932 | 603,600 | Put | Defined | 2022-11-14 | |
| 2022-09-30 | $12,502,990 | 18,150 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $160,314,456 | 271,200 | Call | Defined | 2022-08-15 | |
| 2022-06-30 | $175,565,610 | 297,000 | Put | Defined | 2022-08-15 | |
| No filing history on record for this holder in this stock. | ||||||