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Starboard Value LP ACTG holdings history

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ACACIA RESEARCH CORP · CUSIP 003881307 · CIK 1517137

This is the oldest quarter open without an account, so changes against the quarter before it are withheld. Sign in to see them.
Citable facts

As of 2026-06-30, Starboard Value LP reported 61.12M ACTG (shares), valued at $284.84M, or 6.30% of its reported non-derivative portfolio. Filed 2026-08-14.

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Portfolio weight and quantity history
Reported portfolio weight
6.30%
Shares
61.12M
61,123,595
Reported value
$284.84M
USD

Shares unchanged; reported value decreased 3.12%, and weight changed -0.14 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.

Left: % · Right: Shares · Independently scaled axes

Exact data and methodology

Axes scale independently; a crossing does not mean equal values. Weight uses each quarter's total reported non-derivative value. Same CUSIP; missing quarters are gaps, not zero. Revised history may include later disclosures.

QuarterWeightQuantitySource
Q2 20266.30%61,123,595SEC filing ↗Filed Aug 14, 2026
Q1 20266.44%61,123,595SEC filing ↗Filed May 15, 2026
Q4 20254.33%61,123,595SEC filing ↗Filed Feb 17, 2026
Q3 20253.74%61,123,595SEC filing ↗Filed Nov 14, 2025
Q2 20253.79%61,123,595SEC filing ↗Filed Aug 14, 2025
Q1 20253.56%61,123,595SEC filing ↗Filed May 15, 2025
Q4 20244.80%61,123,595SEC filing ↗Filed Feb 14, 2025
Q3 20246.06%61,123,595SEC filing ↗Filed Nov 14, 2024
Q2 20247.13%61,123,595SEC filing ↗Filed Aug 14, 2024
Q1 20246.73%61,123,595SEC filing ↗Filed May 15, 2024
Q4 20235.00%61,123,595SEC filing ↗Filed Feb 14, 2024
Q3 20235.72%61,123,595SEC filing ↗Filed Nov 14, 2023

History & evidence by quarter

QuarterWeightQuantityValueChange explainedSource
Q3 20235.72%61,123,595$223.10MThe prior quarter is outside the free window. Sign in for the comparison.SEC filing ↗
Filed Nov 14, 2023
Q4 20235.00%61,123,595$239.60MShares unchanged; reported value increased 7.40%, and weight changed -0.72 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 14, 2024
Q1 20246.73%61,123,595$325.79MShares unchanged; reported value increased 35.97%, and weight changed +1.73 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed May 15, 2024
Q2 20247.13%61,123,595$306.23MShares unchanged; reported value decreased 6.00%, and weight changed +0.40 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 14, 2024
Q3 20246.06%61,123,595$284.84MShares unchanged; reported value decreased 6.99%, and weight changed -1.07 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Nov 14, 2024
Q4 20244.80%61,123,595$265.28MShares unchanged; reported value decreased 6.87%, and weight changed -1.26 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 14, 2025
Q1 20253.56%61,123,595$195.60MShares unchanged; reported value decreased 26.27%, and weight changed -1.24 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed May 15, 2025
Q2 20253.79%61,123,595$218.82MShares unchanged; reported value increased 11.87%, and weight changed +0.23 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 14, 2025
Q3 20253.74%61,123,595$198.65MShares unchanged; reported value decreased 9.22%, and weight changed -0.05 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Nov 14, 2025
Q4 20254.33%61,123,595$228.60MShares unchanged; reported value increased 15.08%, and weight changed +0.59 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 17, 2026
Q1 20266.44%61,123,595$294.00MShares unchanged; reported value increased 28.61%, and weight changed +2.11 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed May 15, 2026
Q2 20266.30%61,123,595$284.84MShares unchanged; reported value decreased 3.12%, and weight changed -0.14 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Aug 14, 2026
Starboard Value LP · ACACIA RESEARCH CORP

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

13F reports quarter-end long positions in securities traded on US exchanges, filed by managers holding at least $100 million of such securities; it is not the manager's full portfolio, not assets under management, and value changes are not returns. Weights use the reported total value as denominator. Option rows show notional value, not premium or net exposure. Amendments are merged into the quarter when Akkru could match them.