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Disclosery

Madison Avenue Partners, LP: MAGN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Madison Avenue Partners, LP on MAGN, newest first. How the timeline and the estimate are built.

Madison Avenue Partners, LP held 1,302,066 MAGN 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 1,302,066 shares
    Change vs previous 13F -288,550 shares

    0.66% of the 13F portfolio, value $15,299,276.

    13F-HR 0001801265-26-000005 filed by Madison Avenue Partners, 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 1,590,616 shares
    Change vs previous 13F -190,033 shares

    0.66% of the 13F portfolio, value $15,126,758.

    13F-HR 0001801265-26-000003 filed by Madison Avenue Partners, 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 1,780,649 shares
    Change vs previous 13F -1,051,632 shares

    1.16% of the 13F portfolio, value $26,959,026.

    13F-HR 0001801265-26-000002 filed by Madison Avenue Partners, 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 2,832,281 shares
    Change vs previous 13F -511,724 shares

    1.98% of the 13F portfolio, value $33,194,333.

    13F-HR 0001801265-25-000008 filed by Madison Avenue Partners, 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 3,344,005 shares
    Change vs previous 13F 0 shares

    2.7% of the 13F portfolio, value $40,395,580.

    13F-HR 0001801265-25-000005 filed by Madison Avenue Partners, 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 3,344,005 shares
    Change vs previous 13F -62,288 shares

    5.16% of the 13F portfolio, value $60,727,131.

    13F-HR 0001801265-25-000004 filed by Madison Avenue Partners, 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 3,406,293 shares
    Change vs previous 13F not available

    6.55% of the 13F portfolio, value $61,892,344.

    13F-HR 0001801265-25-000002 filed by Madison Avenue Partners, LP
    Filed (acceptance time not in the bulk data set), ingested

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