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Disclosery

Penbrook Management LLC: MGNI position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Penbrook Management LLC on MGNI, newest first. How the timeline and the estimate are built.

Penbrook Management LLC held 112,040 MGNI shares at 2026-06-30 per its 13F-HR filed 2026-07-23.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 112,040 shares
    Change vs previous 13F -150 shares

    1.36% of the 13F portfolio, value $2,126,519.

    13F-HR 0001381055-26-000003 filed by Penbrook Management LLC
    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 112,190 shares
    Change vs previous 13F +81,075 shares

    1.01% of the 13F portfolio, value $1,332,817.

    13F-HR 0001381055-26-000002 filed by Penbrook Management LLC
    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 31,115 shares
    Change vs previous 13F +2,695 shares

    0.35% of the 13F portfolio, value $504,996.

    13F-HR 0001381055-26-000001 filed by Penbrook Management LLC
    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 28,420 shares
    Change vs previous 13F 0 shares

    0.43% of the 13F portfolio, value $618,987.

    13F-HR 0001381055-25-000008 filed by Penbrook Management LLC
    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/A 28,420 shares
    Change vs previous 13F -9,750 shares

    0.52% of the 13F portfolio, value $685,490.

    13F-HR/A 0001381055-25-000006 filed by Penbrook Management LLC
    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 38,170 shares
    Change vs previous 13F -310 shares

    0.33% of the 13F portfolio, value $435,520.

    13F-HR 0001381055-25-000002 filed by Penbrook Management LLC
    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 38,480 shares
    Change vs previous 13F +15,050 shares

    0.42% of the 13F portfolio, value $612,602.

    13F-HR 0001381055-25-000001 filed by Penbrook Management LLC
    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 23,430 shares
    Change vs previous 13F not available

    0.21% of the 13F portfolio, value $324,506.

    13F-HR 0001381055-24-000005 filed by Penbrook Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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