Position in REGN
as of Dec 31, 2025
· filed Feb 17, 2026
Position Value
$466,626,289
-$54,148,185 QoQ
Shares Held
604,540
-34.7% QoQ
Ownership
0.577%
of shares outstanding
% of Portfolio
0.91%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
18 quarters on record
Voting authority
Sole 94.08475865947663.ToString("F0")%
Shared 0.ToString("F0")%
None 5.915241340523373.ToString("F0")%
Common Shares in REGN Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Dec 31, 2025TWO SIGMA ADVISERS, LP holds $2,538,392,646 across 227 Biotechnology names. REGN ranks #1 (18.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | REGN |
Regeneron Pharmaceuticals, Inc.
This page
|
604,540 | $466,626,289 | |
| 2 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
1,132,560 | $450,362,484 | |
| 3 | IONS |
Ionis Pharmaceuticals Inc
|
3,052,111 | $241,452,501 | |
| 4 | MRNA |
Moderna, Inc.
|
7,729,700 | $227,948,853 | |
| 5 | ARGX |
Argenx SE
|
135,500 | $113,948,725 | |
| 6 | BBIO |
BridgeBio Pharma, Inc.
|
1,401,035 | $107,165,167 | |
| 7 | VKTX |
Viking Therapeutics, Inc.
|
2,129,228 | $74,906,241 | |
| 8 | INSM |
INSMED Inc
|
395,000 | $68,745,800 |
All Filings in REGN
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18 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2025-12-31 | $466,626,289 | 604,540 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $520,774,474 | 926,200 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $492,712,500 | 938,500 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $351,236,574 | 553,800 | Shares | Sole | 2025-05-15 | |
| 2024-09-30 | $946,116 | 900 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $1,051,030 | 1,000 | Shares | Sole | 2024-08-14 | |
| 2023-12-31 | $11,329,941 | 12,900 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $199,896,984 | 242,900 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $215,059,022 | 299,300 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $172,386,366 | 209,800 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $34,992,265 | 48,500 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $79,840,033 | 115,900 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $164,925,270 | 279,000 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $341,667,064 | 489,200 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $245,345,520 | 388,500 | Shares | Sole | 2022-02-14 | |
| 2020-09-30 | $29,555,824 | 52,799 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $76,022,311 | 121,899 | Shares | Sole | 2020-09-15 | |
| 2020-03-31 | $24,219,184 | 49,600 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||