Joel Isaacson & Co., LLC
Position in REGN — Regeneron Pharmaceuticals, Inc.
CIK 1599330
NEW YORK, NY
Position in REGN
as of Mar 31, 2026
· filed Apr 23, 2026
Position Value
$2,369,686
-$2,270 QoQ
Shares Held
3,067
-0.2% QoQ
Ownership
0.003%
of shares outstanding
% of Portfolio
0.23%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 0.ToString("F0")%
Shared 0.ToString("F0")%
None 100.ToString("F0")%
Common Shares in REGN Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026Joel Isaacson & Co., LLC holds $3,643,523 across 6 Biotechnology names. REGN ranks #1 (65.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | REGN |
Regeneron Pharmaceuticals, Inc.
This page
|
3,067 | $2,369,686 | |
| 2 | HALO |
Halozyme Therapeutics, Inc.
|
10,247 | $662,263 | |
| 3 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
506 | $225,949 | |
| 4 | IBRX |
ImmunityBio, Inc.
|
25,000 | $191,750 | |
| 5 | EDIT |
Editas Medicine, Inc.
|
68,144 | $168,315 | |
| 6 | CGEN |
Compugen Ltd
|
12,000 | $25,560 |
All Filings in REGN
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25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $2,369,686 | 3,067 | Shares | Sole | 2026-04-23 | |
| 2025-12-31 | $2,371,956 | 3,073 | Shares | Sole | 2026-01-30 | |
| 2025-09-30 | $1,727,855 | 3,073 | Shares | Sole | 2025-10-30 | |
| 2025-06-30 | $1,613,325 | 3,073 | Shares | Sole | 2025-07-23 | |
| 2025-03-31 | $2,091,690 | 3,298 | Shares | Sole | 2025-04-25 | |
| 2024-12-31 | $2,349,264 | 3,298 | Shares | Sole | 2025-01-28 | |
| 2024-09-30 | $3,493,270 | 3,323 | Shares | Sole | 2024-10-23 | |
| 2024-06-30 | $3,492,572 | 3,323 | Shares | Sole | 2024-07-24 | |
| 2024-03-31 | $3,175,254 | 3,299 | Shares | Sole | 2024-04-30 | |
| 2023-12-31 | $2,895,722 | 3,297 | Shares | Sole | 2024-02-12 | |
| 2023-09-30 | $2,687,787 | 3,266 | Shares | Sole | 2023-10-24 | |
| 2023-06-30 | $2,319,447 | 3,228 | Shares | Sole | 2023-07-27 | |
| 2023-03-31 | $2,652,350 | 3,228 | Shares | Sole | 2023-04-25 | |
| 2022-12-31 | $2,347,006 | 3,253 | Shares | Sole | 2023-01-27 | |
| 2022-09-30 | $2,231,249 | 3,239 | Shares | Sole | 2022-10-14 | |
| 2022-06-30 | $1,915,852 | 3,241 | Shares | Sole | 2022-07-15 | |
| 2022-03-31 | $2,267,071 | 3,246 | Shares | Sole | 2022-04-21 | |
| 2021-12-31 | $2,053,703 | 3,252 | Shares | Sole | 2022-01-19 | |
| 2021-09-30 | $1,964,414 | 3,246 | Shares | Sole | 2021-10-21 | |
| 2021-06-30 | $1,813,020 | 3,246 | Shares | Sole | 2021-07-20 | |
| 2021-03-31 | $1,536,285 | 3,247 | Shares | Sole | 2021-04-23 | |
| 2020-12-31 | $1,568,658 | 3,247 | Shares | Sole | 2021-01-22 | |
| 2020-09-30 | $1,817,605 | 3,247 | Shares | Sole | 2020-10-14 | |
| 2020-06-30 | $2,019,378 | 3,238 | Shares | Sole | 2020-07-21 | |
| 2020-03-31 | $1,470,729 | 3,012 | Shares | Sole | 2020-04-21 | |
| No filing history on record for this holder in this stock. | ||||||