GAMCO INVESTORS, INC. ET AL
Position in REGN — Regeneron Pharmaceuticals, Inc.
CIK 807249
GREENWICH, CT
Position in REGN
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$493,716
-$7,227 QoQ
Shares Held
639
-1.5% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2024
9 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in REGN Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026GAMCO INVESTORS, INC. ET AL holds $3,917,413 across 8 Biotechnology names. REGN ranks #6 (12.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | APLS |
Apellis Pharmaceuticals, Inc.
|
21,000 | $844,830 | |
| 2 | BMRN |
Biomarin Pharmaceutical Inc
|
13,150 | $742,843 | |
| 3 | NAGE |
Niagen Bioscience, Inc.
|
165,000 | $727,650 | |
| 4 | FOLD |
AMICUS THERAPEUTICS, INC.
|
40,000 | $578,400 | |
| 5 | VCEL |
Vericel Corp
|
15,495 | $498,474 | |
| 6 | REGN |
Regeneron Pharmaceuticals, Inc.
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|
639 | $493,716 | |
| 7 | CDXS |
Codexis, Inc.
|
10,000 | $16,300 | |
| 8 | CGTX |
Cognition Therapeutics Inc
|
20,000 | $15,200 |
All Filings in REGN
Export CSV
9 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $493,716 | 639 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $500,943 | 649 | Shares | Sole | 2026-02-05 | |
| 2025-09-30 | $363,226 | 646 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $316,050 | 602 | Shares | Sole | 2025-08-13 | |
| 2025-03-31 | $373,561 | 589 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $401,041 | 563 | Shares | Sole | 2025-02-13 | |
| 2024-09-30 | $383,702 | 365 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $322,666 | 307 | Shares | Sole | 2024-08-13 | |
| 2024-03-31 | $230,035 | 239 | Shares | Sole | 2024-05-14 | |
| No filing history on record for this holder in this stock. | ||||||