Position in REGN
as of Jun 30, 2026
· filed Jul 31, 2026
Position Value
$7,219,346
-$1,892,397 QoQ
Shares Held
11,578
-1.8% QoQ
Ownership
0.011%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
#341
of 1,327 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)
Position in Biotechnology
Healthcare · as of Jun 30, 2026Calamos Advisors LLC holds $119,502,354 across 21 Biotechnology names. REGN ranks #3 (6.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
75,388 | $37,447,481 | |
| 2 | RPRX |
Royalty Pharma plc
|
573,521 | $32,157,322 | |
| 3 | REGN |
Regeneron Pharmaceuticals, Inc.
This page
|
11,578 | $7,219,346 | |
| 4 | LGND |
Ligand Pharmaceuticals Inc
|
22,435 | $7,091,478 | |
| 5 | TVTX |
Travere Therapeutics, Inc.
|
121,755 | $6,916,901 | |
| 6 | CYTK |
Cytokinetics Inc
|
51,443 | $4,382,428 | |
| 7 | RVMD |
Revolution Medicines, Inc.
|
19,711 | $3,691,476 | |
| 8 | AXSM |
Axsome Therapeutics, Inc.
|
14,699 | $3,597,874 |
All Filings in REGN
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26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $7,219,346 | 11,578 | Shares | Sole | 2026-07-31 | |
| 2026-03-31 | $9,111,743 | 11,793 | Shares | Sole | 2026-05-04 | |
| 2025-12-31 | $9,102,662 | 11,793 | Shares | Sole | 2026-01-29 | |
| 2025-09-30 | $6,900,177 | 12,272 | Shares | Sole | 2025-10-20 | |
| 2025-06-30 | $6,442,800 | 12,272 | Shares | Sole | 2025-08-08 | |
| 2025-03-31 | $7,783,270 | 12,272 | Shares | Sole | 2025-04-29 | |
| 2024-12-31 | $16,139,973 | 22,658 | Shares | Sole | 2025-01-24 | |
| 2024-09-30 | $12,756,797 | 12,135 | Shares | Sole | 2024-11-07 | |
| 2024-06-30 | $13,067,455 | 12,433 | Shares | Sole | 2024-07-25 | |
| 2024-03-31 | $12,403,608 | 12,887 | Shares | Sole | 2024-05-08 | |
| 2023-12-31 | $11,603,089 | 13,211 | Shares | Sole | 2024-01-31 | |
| 2023-09-30 | $11,014,496 | 13,384 | Shares | Sole | 2023-10-26 | |
| 2023-06-30 | $9,616,939 | 13,384 | Shares | Sole | 2023-07-28 | |
| 2023-03-31 | $10,997,231 | 13,384 | Shares | Sole | 2023-05-04 | |
| 2022-12-31 | $10,873,575 | 15,071 | Shares | Sole | 2023-01-26 | |
| 2022-09-30 | $12,215,042 | 17,732 | Shares | Sole | 2022-10-24 | |
| 2022-06-30 | $10,492,557 | 17,750 | Shares | Sole | 2022-08-01 | |
| 2022-03-31 | $12,052,633 | 17,257 | Shares | Sole | 2022-05-03 | |
| 2021-12-31 | $9,436,171 | 14,942 | Shares | Sole | 2022-02-01 | |
| 2021-09-30 | $8,692,805 | 14,364 | Shares | Sole | 2021-10-26 | |
| 2021-06-30 | $7,314,639 | 13,096 | Shares | Sole | 2021-07-22 | |
| 2021-03-31 | $4,786,757 | 10,117 | Shares | Sole | 2021-04-12 | |
| 2020-12-31 | $4,736,410 | 9,804 | Shares | Sole | 2021-01-27 | |
| 2020-09-30 | $5,725,989 | 10,229 | Shares | Sole | 2020-10-26 | |
| 2020-06-30 | $6,947,461 | 11,140 | Shares | Sole | 2020-07-27 | |
| 2020-03-31 | $5,787,213 | 11,852 | Shares | Sole | 2020-04-28 | |
| No filing history on record for this holder in this stock. | ||||||