Costello Asset Management, INC
Position in REGN — Regeneron Pharmaceuticals, Inc.
CIK 1760145
FEASTERVILLE, PA
Position in REGN
as of Mar 31, 2026
· filed Apr 30, 2026
Position Value
$33,223
+$33 QoQ
Shares Held
43
0.0% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2025
5 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, 2026Costello Asset Management, INC holds $593,726 across 18 Biotechnology names. REGN ranks #4 (5.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
589 | $263,012 | |
| 2 | BNTX |
BioNTech SE
|
1,000 | $88,880 | |
| 3 | MRNA |
Moderna, Inc.
|
900 | $45,720 | |
| 4 | REGN |
Regeneron Pharmaceuticals, Inc.
This page
|
43 | $33,223 | |
| 5 | EXEL |
Exelixis, Inc.
|
750 | $32,167 | |
| 6 | CRSP |
CRISPR Therapeutics AG
|
600 | $28,542 | |
| 7 | ARWR |
Arrowhead Pharmaceuticals, Inc.
|
400 | $25,080 | |
| 8 | XOMA |
XOMA Royalty Corp
|
600 | $18,822 |
All Filings in REGN
Export CSV
5 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $33,223 | 43 | Shares | Sole | 2026-04-30 | |
| 2025-12-31 | $33,190 | 43 | Shares | Sole | 2026-02-03 | |
| 2025-09-30 | $24,177 | 43 | Shares | Sole | 2025-11-06 | |
| 2025-06-30 | $22,575 | 43 | Shares | Sole | 2025-07-24 | |
| 2025-03-31 | $27,271 | 43 | Shares | Sole | 2025-05-09 | |
| No filing history on record for this holder in this stock. | ||||||