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Disclosery

Starboard Value LP: ACTG position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Starboard Value LP on ACTG, newest first. How the timeline and the estimate are built.

Starboard Value LP held 61,123,595 ACTG shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 61,123,595 shares
    Change vs previous 13F 0 shares

    6.3% of the 13F portfolio, value $284,835,953.

    13F-HR 0000921895-26-002172 filed by Starboard Value LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  2. period ended2026-03-31
    13F 61,123,595 shares
    Change vs previous 13F 0 shares

    6.44% of the 13F portfolio, value $294,004,492.

    13F-HR 0000921895-26-001402 filed by Starboard Value LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-12-31
    13F 61,123,595 shares
    Change vs previous 13F 0 shares

    4.33% of the 13F portfolio, value $228,602,245.

    13F-HR 0000921895-26-000450 filed by Starboard Value LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2025-09-30
    13F 61,123,595 shares
    Change vs previous 13F 0 shares

    3.74% of the 13F portfolio, value $198,651,684.

    13F-HR 0000921895-25-003099 filed by Starboard Value LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  5. period ended2025-06-30
    13F 61,123,595 shares
    Change vs previous 13F 0 shares

    3.79% of the 13F portfolio, value $218,822,470.

    13F-HR 0000921895-25-002289 filed by Starboard Value LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  6. period ended2025-03-31
    13F 61,123,595 shares
    Change vs previous 13F 0 shares

    3.56% of the 13F portfolio, value $195,595,504.

    13F-HR 0000921895-25-001532 filed by Starboard Value LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  7. period ended2024-12-31
    13F 61,123,595 shares
    Change vs previous 13F 0 shares

    4.8% of the 13F portfolio, value $265,276,402.

    13F-HR 0000921895-25-000464 filed by Starboard Value LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  8. period ended2024-09-30
    13F 61,123,595 shares
    Change vs previous 13F not available

    6.06% of the 13F portfolio, value $284,835,953.

    13F-HR 0000921895-24-002729 filed by Starboard Value LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).