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First Manhattan Co

SEC CIK
0000728083
Latest filing
Aug 14, 2026

STX holding history

Seagate Technology Holdings plc in every 13F filed by First Manhattan Co, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

STX overviewAll 13F holders of STXFull Q2 2026 holdings

Shares (Q2 2026)
718
Value
$693.4K
% of portfolio
<0.1%
Quarters held
10
Since Q1 2021
Holdings of STX by First Manhattan Co, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026718$693.4K<0.1%+82+12.9%AddedHolders
Q1 2026636$249.6K<0.1%+636NewHolders
Q2 20240$00.0%−300−100.0%Sold outHolders
Q1 2024300$27.9K<0.1%+300NewHolders
Q3 20230$00.0%−100−100.0%Sold outHolders
Q2 2023100$6.40K<0.1%+100NewHolders
Q3 20220$00.0%−1,000−100.0%Sold outHolders
Q2 20221,000$71.0K<0.1%00.0%UnchangedHolders
Q1 20221,000$89.0K<0.1%00.0%UnchangedHolders
Q4 20211,000$112.0K<0.1%−100−9.1%ReducedHolders
Q3 20211,100$90.0K<0.1%00.0%UnchangedHolders
Q2 20211,100$96.0K<0.1%00.0%UnchangedHolders
Q1 20211,100$84.0K<0.1%––Holders

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