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Starboard Value

Superinvestor

Starboard Value LP

SEC CIK
0001517137
Manager
Jeff Smith
Style
Activist
Latest filing
Aug 14, 2026

ON holding history

On Semiconductor Corp in every 13F filed by Starboard Value, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

ON overviewAll 13F holders of ONFull Q2 2026 holdings

Shares (Q2 2023)
0
Sold out in Q2 2023
Value
$0
% of portfolio
0.0%
Quarters held
9
Since Q1 2021
Holdings of ON by Starboard Value, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20230$00.0%−200,000−100.0%Sold outHolders
Q1 2023200,000$16.5M0.3%−750,000−78.9%ReducedHolders
Q4 2022950,000$59.3M1.1%−1,497,000−61.2%ReducedHolders
Q3 20222,447,000$152.5M3.4%−3,170,681−56.4%ReducedHolders
Q2 20225,617,681$282.6M5.1%−1,000,000−15.1%ReducedHolders
Q1 20226,617,681$414.3M5.5%−950,000−12.6%ReducedHolders
Q4 20217,567,681$514.0M7.1%−770,000−9.2%ReducedHolders
Q3 20218,337,681$381.6M7.0%−350,000−4.0%ReducedHolders
Q2 20218,687,681$332.6M6.5%+116,502+1.4%AddedHolders
Q1 20218,571,179$356.6M7.6%––Holders

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