REGENERON PHARMACEUTICALS, INC. — 13F Holdings & Portfolio

CIK 872589 · latest 13F-HR filed 2026-08-07

REGENERON PHARMACEUTICALS, INC. manages $177.2M in 13F-reported U.S. long-equity assets across 3 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are PBLS (64.35%), NTLA (35.35%), ACET (0.30%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 2 new positions, exited 1, added to 1, and trimmed 0.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

Filer Information
Address
777 OLD SAW MILL RIVER ROAD
TARRYTOWN, NY 10591
Phone
(914) 847-7000
Filing Manager
REGENERON PHARMACEUTICALS, INC.
TARRYTOWN, NY
Signatory
Leonard Brooks
Senior Vice President, Treasurer
Loading holdings…
AUM

$177.2M

Long-equity book

Holdings

3

Distinct positions

Period

2026-06-30

Filed 2026-08-07

Q/Q Activity

+2 / −1 / ↑1 / ↓0

vs 2026-03-31

Firm Profile & Key People
Name Title / Status Ownership Type

Top Adds (vs prior quarter)

  • Intellia Therapeutics, Inc.$15.2M +32.0%
Show all 1

Top Trims

  • No decreased positions.
Show all 0

New Positions

  • Parabilis Medicines, Inc.$114.0M
  • Adicet Bio, Inc.$522.8K
Show all 2

Exited Positions

  • Adicet Bio, Inc.$412.1K
Show all 1
All Holdings

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 Parabilis Medicines, Inc. PBLS 698955101 $114.0M 64.35% 4,166,666 SH
2 Intellia Therapeutics, Inc. NTLA 45826J105 $62.7M 35.35% 3,702,995 SH
3 Adicet Bio, Inc. ACET 007002207 $522.8K 0.30% 60,511 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-07 $177.2M 3 0001104659-26-092709
2026-03-31 2026-05-08 $47.9M 2 0001104659-26-057922
2025-12-31 2026-02-06 $33.8M 2 0001104659-26-011601