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Livermore
Livermore
ZHEN

Penbrook Management LLC

SEC CIK
0001381055
Latest filing
Jul 23, 2026

REGN holding history

Regeneron Pharmaceuticals, Inc. in every 13F filed by Penbrook Management LLC, 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)
785
Value
$489.5K
% of portfolio
0.3%
Quarters held
22
Since Q1 2021
Holdings of REGN by Penbrook Management LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026785$489.5K0.3%00.0%UnchangedHolders
Q1 2026785$606.5K0.5%−12−1.5%ReducedHolders
Q4 2025797$615.2K0.4%00.0%UnchangedHolders
Q3 2025797$448.1K0.3%00.0%UnchangedHolders
Q2 2025797$418.4K0.3%−100−11.1%ReducedHolders
Q1 2025897$568.9K0.4%00.0%UnchangedHolders
Q4 2024897$639.0K0.4%−250−21.8%ReducedHolders
Q3 20241,147$1.21M0.8%00.0%UnchangedHolders
Q2 20241,147$1.21M0.7%00.0%UnchangedHolders
Q1 20241,147$1.10M0.7%00.0%UnchangedHolders
Q4 20231,147$1.01M0.7%+100+9.6%AddedHolders
Q3 20231,047$861.6K0.6%+25+2.4%AddedHolders
Q2 20231,022$734.3K0.5%−50−4.7%ReducedHolders
Q1 20231,072$880.8K0.7%00.0%UnchangedHolders
Q4 20221,072$773.4K0.7%−200−15.7%ReducedHolders
Q3 20221,272$876.0K0.8%00.0%UnchangedHolders
Q2 20221,272$752.0K0.6%00.0%UnchangedHolders
Q1 20221,272$888.0K0.6%00.0%UnchangedHolders
Q4 20211,272$803.0K0.5%00.0%UnchangedHolders
Q3 20211,272$770.0K0.5%00.0%UnchangedHolders
Q2 20211,272$710.0K0.4%+462+57.0%AddedHolders
Q1 2021810$383.0K0.3%––Holders

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