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Disclosery

Rossby Financial, LCC: MGK position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Rossby Financial, LCC on MGK, newest first. How the timeline and the estimate are built.

Rossby Financial, LCC held 7,195 MGK shares at 2026-06-30 per its 13F-HR filed 2026-08-04.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 7,195 shares
    Change vs previous 13F +5,775 shares

    0.12% of the 13F portfolio, value $632,512.

    13F-HR 0002056510-26-000003 filed by Rossby Financial, LCC
    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 1,420 shares
    Change vs previous 13F +1,085 shares

    0.11% of the 13F portfolio, value $527,857.

    13F-HR 0002056510-26-000002 filed by Rossby Financial, LCC
    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 335 shares
    Change vs previous 13F +95 shares

    0.04% of the 13F portfolio, value $138,278.

    13F-HR 0002056510-26-000001 filed by Rossby Financial, LCC
    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 240 shares
    Change vs previous 13F +35 shares

    0.03% of the 13F portfolio, value $97,087.

    13F-HR 0002056510-25-000005 filed by Rossby Financial, LCC
    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 205 shares
    Change vs previous 13F -8 shares

    0.03% of the 13F portfolio, value $75,065.

    13F-HR 0002056510-25-000003 filed by Rossby Financial, LCC
    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 213 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $66,882.

    13F-HR 0002056510-25-000002 filed by Rossby Financial, LCC
    Filed (acceptance time not in the bulk data set), ingested

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