Tower Research Capital LLC (TRC)
Position in REGN — Regeneron Pharmaceuticals, Inc.
CIK 1533421
NEW YORK, NY
Position in REGN
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$3,382,617
-$1,807,436 QoQ
Shares Held
4,378
-34.9% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.12%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2020
24 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, 2026Tower Research Capital LLC (TRC) holds $67,029,195 across 432 Biotechnology names. REGN ranks #3 (5.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ARGX |
Argenx SE
|
12,112 | $8,844,787 | |
| 2 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
13,904 | $6,208,692 | |
| 3 | REGN |
Regeneron Pharmaceuticals, Inc.
This page
|
4,378 | $3,382,617 | |
| 4 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
9,627 | $3,185,285 | |
| 5 | INSM |
INSMED Inc
|
15,410 | $2,519,843 | |
| 6 | LKFT |
Lakefront Biotherapeutics NV
|
66,536 | $1,996,080 | |
| 7 | MRNA |
Moderna, Inc.
|
33,728 | $1,713,382 | |
| 8 | BBIO |
BridgeBio Pharma, Inc.
|
14,349 | $1,065,556 |
All Filings in REGN
Export CSV
24 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $3,382,617 | 4,378 | Shares | Other | 2026-05-15 | |
| 2025-12-31 | $5,190,053 | 6,724 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $3,098,107 | 5,510 | Shares | Other | 2025-11-14 | |
| 2025-06-30 | $497,175 | 947 | Shares | Defined | 2025-08-15 | |
| 2025-03-31 | $3,232,669 | 5,097 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $6,034,859 | 8,472 | Shares | Other | 2025-02-13 | |
| 2024-09-30 | $3,673,032 | 3,494 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $10,332,675 | 9,831 | Shares | Other | 2024-08-13 | |
| 2024-03-31 | $8,204,263 | 8,524 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $16,294,913 | 18,553 | Shares | Other | 2024-02-13 | |
| 2023-09-30 | $4,247,296 | 5,161 | Shares | Other | 2023-11-14 | |
| 2023-06-30 | $7,866,575 | 10,948 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $1,674,562 | 2,038 | Shares | Defined | 2023-05-09 | |
| 2022-12-31 | $2,659,411 | 3,686 | Shares | Other | 2023-02-10 | |
| 2022-09-30 | $14,362,249 | 20,849 | Shares | Other | 2022-11-10 | |
| 2022-06-30 | $11,352,650 | 19,205 | Shares | Other | 2022-08-15 | |
| 2022-03-31 | $22,683,982 | 32,479 | Shares | Other | 2022-05-12 | |
| 2021-12-31 | $8,859,593 | 14,029 | Shares | Other | 2022-02-14 | |
| 2021-09-30 | $3,703,701 | 6,120 | Shares | Other | 2021-11-15 | |
| 2021-06-30 | $2,498,348 | 4,473 | Shares | Other | 2021-08-16 | |
| 2021-03-31 | $7,515,828 | 15,885 | Shares | Other | 2021-05-17 | |
| 2020-12-31 | $1,636,293 | 3,387 | Shares | Defined | 2021-02-16 | |
| 2020-09-30 | $2,723,329 | 4,865 | Shares | Defined | 2020-11-16 | |
| 2020-06-30 | $2,826,381 | 4,532 | Shares | Defined | 2020-08-13 | |
| No filing history on record for this holder in this stock. | ||||||