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Walleye Trading LLC

SEC CIK
0001388391
Latest filing
Aug 3, 2026

REGN holding history

Regeneron Pharmaceuticals, Inc. in every 13F filed by Walleye Trading 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)
11,407
Value
$7.11M
% of portfolio
0.1%
Quarters held
16
Since Q1 2021
Holdings of REGN by Walleye Trading LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202611,407$7.11M0.1%+1,017+9.8%AddedHolders
Q1 202610,390$8.03M0.2%−2,482−19.3%ReducedHolders
Q4 202512,872$9.94M0.2%+7,374+134.1%AddedHolders
Q3 20255,498$3.09M<0.1%−2,253−29.1%ReducedHolders
Q2 20257,751$4.07M0.1%+4,799+162.6%AddedHolders
Q1 20252,952$1.87M0.1%+2,952NewHolders
Q4 20240$00.0%−9,997−100.0%Sold outHolders
Q3 20249,997$10.5M0.3%−1,921−16.1%ReducedHolders
Q2 202411,918$12.5M0.2%+7,215+153.4%AddedHolders
Q1 20244,703$4.53M0.1%+3,085+190.7%AddedHolders
Q4 20231,618$1.42M<0.1%+1,618NewHolders
Q3 20230$00.0%−4,764−100.0%Sold outHolders
Q2 20234,764$3.42M0.2%+4,764NewHolders
Q3 20220$00.0%−14,485−100.0%Sold outHolders
Q2 202214,485$8.56M0.2%+9,381+183.8%AddedHolders
Q1 20225,104$3.56M0.1%+5,104NewHolders
Q4 20210$00.0%−1,372−100.0%Sold outHolders
Q3 20211,372$830.0K<0.1%−4,236−75.5%ReducedHolders
Q2 20215,608$3.13M0.1%+2,219+65.5%AddedHolders
Q1 20213,389$1.60M0.1%––Holders

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