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Group One Trading, L.P.

SEC CIK
0000932540
Latest filing
Aug 13, 2026

ALGM holding history

Allegro Microsystems, Inc. in every 13F filed by Group One Trading, L.P., including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

ALGM overviewAll 13F holders of ALGMFull Q2 2026 holdings

Shares (Q2 2026)
3,468
Value
$241.4K
% of portfolio
<0.1%
Quarters held
15
Since Q1 2021
Holdings of ALGM by Group One Trading, L.P., by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20263,468$241.4K<0.1%−5,946−63.2%ReducedHolders
Q1 20269,414$296.8K<0.1%+9,414NewHolders
Q4 20250$00.0%−7,177−100.0%Sold outHolders
Q3 20257,177$209.6K<0.1%−45,684−86.4%ReducedHolders
Q2 202552,861$1.81M0.1%+8,576+19.4%AddedHolders
Q1 202544,285$1.11M<0.1%+9,385+26.9%AddedHolders
Q4 202434,900$762.9K<0.1%+34,900NewHolders
Q3 20240$00.0%−3,966−100.0%Sold outHolders
Q2 20243,966$112.0K<0.1%+2,784+235.5%AddedHolders
Q1 20241,182$31.9K<0.1%−2,378−66.8%ReducedHolders
Q4 20233,560$107.8K<0.1%+3,560NewHolders
Q2 20230$00.0%−14,884−100.0%Sold outHolders
Q1 202314,884$714.3K<0.1%+14,884NewHolders
Q2 20220$00.0%−800−100.0%Sold outHolders
Q1 2022800$23.0K<0.1%00.0%UnchangedHolders
Q4 2021800$29.0K<0.1%−1,100−57.9%ReducedHolders
Q3 20211,900$61.0K<0.1%+600+46.2%AddedHolders
Q2 20211,300$36.0K<0.1%−459−26.1%ReducedHolders
Q1 20211,759$45.0K<0.1%––Holders

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