Rafferty Asset Management, LLC
Position in REGN — Regeneron Pharmaceuticals, Inc.
CIK 1389426
New York, NY
Position in REGN
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$22,861,644
-$4,400,032 QoQ
Shares Held
29,589
-16.2% QoQ
Ownership
0.028%
of shares outstanding
% of Portfolio
0.12%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 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)
Position in Biotechnology
Healthcare · as of Mar 31, 2026Rafferty Asset Management, LLC holds $409,131,400 across 136 Biotechnology names. REGN ranks #2 (5.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
54,572 | $24,368,580 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
This page
|
29,589 | $22,861,644 | |
| 3 | INSM |
INSMED Inc
|
116,069 | $18,979,602 | |
| 4 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
50,553 | $16,726,471 | |
| 5 | APLS |
Apellis Pharmaceuticals, Inc.
|
180,471 | $7,260,348 | |
| 6 | MRNA |
Moderna, Inc.
|
114,194 | $5,801,055 | |
| 7 | INCY |
Incyte Corp
|
60,565 | $5,700,377 | |
| 8 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
10,452 | $5,471,308 |
All Filings in REGN
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $22,861,644 | 29,589 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $27,261,676 | 35,319 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $26,129,811 | 46,472 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $27,629,700 | 52,628 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $28,351,349 | 44,702 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $33,912,606 | 47,608 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $37,528,216 | 35,699 | Shares | Sole | 2024-11-13 | |
| 2024-06-30 | $43,320,303 | 41,217 | Shares | Sole | 2024-08-13 | |
| 2024-03-31 | $32,023,967 | 33,272 | Shares | Sole | 2024-05-13 | |
| 2023-12-31 | $30,016,439 | 34,176 | Shares | Sole | 2024-02-13 | |
| 2023-09-30 | $26,379,982 | 32,055 | Shares | Sole | 2023-11-13 | |
| 2023-06-30 | $22,018,939 | 30,644 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $21,094,733 | 25,673 | Shares | Sole | 2023-05-11 | |
| 2022-12-31 | $18,785,435 | 26,037 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $17,078,465 | 24,792 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $12,014,717 | 20,325 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $14,821,869 | 21,222 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $11,421,670 | 18,086 | Shares | Sole | 2022-02-10 | |
| 2021-09-30 | $8,835,022 | 14,599 | Shares | Sole | 2021-11-10 | |
| 2021-06-30 | $7,782,696 | 13,934 | Shares | Sole | 2021-08-10 | |
| 2021-03-31 | $7,865,952 | 16,625 | Shares | Sole | 2021-05-10 | |
| 2020-12-31 | $5,391,024 | 11,159 | Shares | Sole | 2021-02-10 | |
| 2020-09-30 | $5,968,374 | 10,662 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $5,584,162 | 8,954 | Shares | Sole | 2020-08-07 | |
| 2020-03-31 | $4,014,232 | 8,221 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||