Position in REGN
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$476,384
-$681,803 QoQ
Shares Held
764
-49.0% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#820
of 1,322 holders
Holding Since
Mar 2024
10 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, 2026Sienna Gestion holds $476,384 across 1 Biotechnology name. REGN ranks #1 (100.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | REGN |
Regeneron Pharmaceuticals, Inc.
This page
|
764 | $476,384 |
All Filings in REGN
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10 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $476,384 | 764 | Shares | Sole | 2026-08-13 | |
| 2026-03-31 | $1,158,187 | 1,499 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $1,157,033 | 1,499 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $278,323 | 495 | Shares | Sole | 2025-11-13 | |
| 2025-06-30 | $5,314,050 | 10,122 | Shares | Sole | 2025-08-06 | |
| 2025-03-31 | $5,812,717 | 9,165 | Shares | Sole | 2025-05-13 | |
| 2024-12-31 | $6,931,683 | 9,731 | Shares | Sole | 2025-02-10 | |
| 2024-09-30 | $10,229,616 | 9,731 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $8,196,982 | 7,799 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $7,506,459 | 7,799 | Shares | Sole | 2024-08-12 | |
| No filing history on record for this holder in this stock. | ||||||