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Disclosery

Starboard Value LP: RIOT position timeline

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

Starboard Value LP held 10,114,576 RIOT 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 10,114,576 shares
    Change vs previous 13F -5,430,000 shares

    6.12% of the 13F portfolio, value $276,937,091.

    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 15,544,576 shares
    Change vs previous 13F +2,800,000 shares

    4.21% of the 13F portfolio, value $192,130,959.

    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 12,744,576 shares
    Change vs previous 13F +3,926,576 shares

    3.06% of the 13F portfolio, value $161,473,778.

    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 8,818,000 shares
    Change vs previous 13F +4,141,100 shares

    3.16% of the 13F portfolio, value $167,806,540.

    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 4,676,900 shares
    Change vs previous 13F -8,023,100 shares

    0.92% of the 13F portfolio, value $52,848,970.

    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 12,700,000 shares
    Change vs previous 13F -4,035 shares

    1.64% of the 13F portfolio, value $90,424,000.

    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 12,704,035 shares
    Change vs previous 13F not available

    2.35% of the 13F portfolio, value $129,708,197.

    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).