Callan Family Office, LLC
Family OfficePosition in REGN — Regeneron Pharmaceuticals, Inc.
CIK 1938970
RADNOR, PA
Position in REGN
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$6,981,575
-$36,267 QoQ
Shares Held
9,036
-0.6% QoQ
Ownership
0.009%
of shares outstanding
% of Portfolio
0.20%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2023
7 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, 2026Callan Family Office, LLC holds $25,981,974 across 28 Biotechnology names. REGN ranks #1 (26.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | REGN |
Regeneron Pharmaceuticals, Inc.
This page
|
9,036 | $6,981,575 | |
| 2 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
15,262 | $6,815,093 | |
| 3 | GMAB |
Genmab A/S
|
55,047 | $1,476,911 | |
| 4 | ARGX |
Argenx SE
|
1,977 | $1,443,704 | |
| 5 | JAZZ |
Jazz Pharmaceuticals plc
|
7,358 | $1,391,029 | |
| 6 | TECH |
BIO-TECHNE Corp
|
20,483 | $1,070,441 | |
| 7 | INCY |
Incyte Corp
|
11,135 | $1,048,026 | |
| 8 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
3,035 | $1,004,190 |
All Filings in REGN
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7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $6,981,575 | 9,036 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $7,017,842 | 9,092 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $3,791,948 | 6,744 | Shares | Sole | 2025-11-04 | |
| 2025-06-30 | $3,171,000 | 6,040 | Shares | Sole | 2025-07-24 | |
| 2025-03-31 | $1,208,208 | 1,905 | Shares | Sole | 2025-05-13 | |
| 2024-12-31 | $1,117,645 | 1,569 | Shares | Sole | 2025-02-07 | |
| 2023-03-31 | $645,832 | 786 | Shares | Sole | 2023-05-12 | |
| No filing history on record for this holder in this stock. | ||||||