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Livermore
Livermore
ZHEN

Klingenstein Fields & Co LP

SEC CIK
0000859872
Latest filing
Aug 5, 2026

REGN holding history

Regeneron Pharmaceuticals, Inc. in every 13F filed by Klingenstein Fields & Co LP, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

REGN overviewAll 13F holders of REGNFull Q2 2026 holdings

Shares (Q2 2026)
747
Value
$465.8K
% of portfolio
<0.1%
Quarters held
22
Since Q1 2021
Holdings of REGN by Klingenstein Fields & Co LP, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026747$465.8K<0.1%−14,819−95.2%ReducedHolders
Q1 202615,566$12.0M0.5%−369−2.3%ReducedHolders
Q4 202515,935$12.3M0.5%−138−0.9%ReducedHolders
Q3 202516,073$9.04M0.3%−26−0.2%ReducedHolders
Q2 202516,099$8.45M0.3%+9,155+131.8%AddedHolders
Q1 20256,944$4.40M0.2%+138+2.0%AddedHolders
Q4 20246,806$4.85M0.2%+6,231+1,083.7%AddedHolders
Q3 2024575$604.5K<0.1%00.0%UnchangedHolders
Q2 2024575$604.3K<0.1%00.0%UnchangedHolders
Q1 2024575$553.4K<0.1%00.0%UnchangedHolders
Q4 2023575$505.0K<0.1%−1−0.2%ReducedHolders
Q3 2023576$474.0K<0.1%00.0%UnchangedHolders
Q2 2023576$413.9K<0.1%+1+0.2%AddedHolders
Q1 2023575$472.5K<0.1%00.0%UnchangedHolders
Q4 2022575$414.9K<0.1%00.0%UnchangedHolders
Q3 2022575$396.0K<0.1%00.0%UnchangedHolders
Q2 2022575$340.0K<0.1%00.0%UnchangedHolders
Q1 2022575$402.0K<0.1%−225−28.1%ReducedHolders
Q4 2021800$505.0K<0.1%−85−9.6%ReducedHolders
Q3 2021885$536.0K<0.1%00.0%UnchangedHolders
Q2 2021885$494.0K<0.1%00.0%UnchangedHolders
Q1 2021885$419.0K<0.1%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.