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REGENERON PHARMACEUTICALS, INC.

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13F filer, CIK 872589, TARRYTOWN, NY

REGENERON PHARMACEUTICALS, INC. reported $1,485,002,709 across 4 holdings for the quarter ended 2025-06-30, in a 13F-HR filed 2025-08-01.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001104659-25-073115

Period
2025-06-30
Reported value
$1.49B
Holdings
4
Top 10 weight
100%
New
0
Sold out
2

Largest buys vs the previous quarter

None.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
2SEVENTY BIO INC COMMON STO…exited-1,254,827-$6.2M
BLUEBIRD BIO INC COM NEWexited-21,000-$102K

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q2 2025

Share positions as resolved from 13F-HR 0001104659-25-073115, largest first. % of portfolio is the value over $1,485,002,709, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
ALNYALNYLAM PHARMACEUTICALS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 4,444,445 shares; 2025Q1: 4,444,445 shares; 2025Q2: 4,444,445 shares 4,444,445$1.45B97.6%0Timeline
NTLAINTELLIA THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 3,702,995 shares; 2025Q1: 3,702,995 shares; 2025Q2: 3,702,995 shares 3,702,995$34.7M2.34%0Timeline
ADICET BIO INCADICET BIO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 968,183 shares; 2025Q1: 968,183 shares; 2025Q2: 968,183 shares 968,183$591K0.04%0
ADVERUM BIOTECHNOLOGIES INCADVERUM BIOTECHNOLOGIES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 180,909 shares; 2025Q1: 180,909 shares; 2025Q2: 180,909 shares 180,909$389K0.03%0

Sold out in Q2 2025

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
2SEVENTY BIO INC COMMON STO…2SEVENTY BIO INC COMMON STOCK1,254,827$6.2Mshares
BLUEBIRD BIO INC COM NEWBLUEBIRD BIO INC COM NEW21,000$102Kshares

How Q2 2025 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001104659-25-073115 base2025-08-01acceptance time not in the bulk data set