REGENERON PHARMACEUTICALS, INC.
Public Company
REGENERON PHARMACEUTICALS, INC. is a Public Company based in Tarrytown, NY led by Leonard S. Schleifer, M.D., Ph.D., managing $700.4M across 4 long positions as of Q3 2025 with 100% Healthcare concentration, with only 4 positions, and 91% allocation to ALNY.
CEOLeonard S. Schleifer, M.D., Ph.D.
- Portfolio Value
- $700.4M
- Positions
- 4
- Top Holding
- ALNY at 90.64%
- Last Reported
- Q3 2025
Top Holdings
Largest long holdings in REGENERON PHARMACEUTICALS, INC.'s portfolio (100% of total portfolio)
GthenH
| Holding | Sector | Position | Weight | Traded | Ownership |
|---|---|---|---|---|---|
Biotechnology Healthcare | $634.9M | 90.64% | -$1.4B Sold | 1.06% 1.4M shares | |
Biotechnology Healthcare | $64.0M | 9.13% | — | 3.45% 3.7M shares | |
Biotechnology Healthcare | $819.5K | 0.12% | — | 0.86% 180.9K shares | |
Biotechnology Healthcare | $784.4K | 0.11% | — | 1.16% 968.2K shares |
Changes
Portfolio activity, position movements, and quarter-over-quarter changes in REGENERON PHARMACEUTICALS, INC.'s latest filing
GthenC
Market Value
Q/Q Change
Net Flows % of MV
Turnover Ratio
New Purchases
Added To
Sold Out Of
Reduced Holdings
Increased Positions
| Position | Shares Δ |
|---|---|
| No increased positions | |
Decreased Positions
| Position | Shares Δ |
|---|---|
-68.67% |
Analytics
Portfolio insights and performance metrics for REGENERON PHARMACEUTICALS, INC.
GthenA