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J. Goldman & Co LP: MGTX position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of J. Goldman & Co LP on MGTX, newest first. How the timeline and the estimate are built.

J. Goldman & Co LP held 601,972 MGTX 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 601,972 shares
    Change vs previous 13F +395,762 shares

    0.29% of the 13F portfolio, value $8,132,642.

    13F-HR 0001412741-26-000003 filed by J. Goldman & Co 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 206,210 shares
    Change vs previous 13F -113,477 shares

    0.08% of the 13F portfolio, value $1,785,779.

    13F-HR 0001412741-26-000002 filed by J. Goldman & Co 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 319,687 shares
    Change vs previous 13F -1,481,244 shares

    0.1% of the 13F portfolio, value $2,541,512.

    13F-HR 0001412741-26-000001 filed by J. Goldman & Co 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 1,800,931 shares
    Change vs previous 13F -243,643 shares

    0.56% of the 13F portfolio, value $14,821,662.

    13F-HR 0001412741-25-000008 filed by J. Goldman & Co 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 2,044,574 shares
    Change vs previous 13F +885,813 shares

    0.42% of the 13F portfolio, value $13,330,622.

    13F-HR 0001085146-25-005095 filed by J. Goldman & Co 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 1,158,761 shares
    Change vs previous 13F +608,241 shares

    0.28% of the 13F portfolio, value $7,856,400.

    13F-HR 0001085146-25-003196 filed by J. Goldman & Co 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 550,520 shares
    Change vs previous 13F -308,759 shares

    0.12% of the 13F portfolio, value $3,352,667.

    13F-HR 0001085146-25-001524 filed by J. Goldman & Co 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 859,279 shares
    Change vs previous 13F not available

    0.16% of the 13F portfolio, value $3,583,193.

    13F-HR 0001085146-24-005778 filed by J. Goldman & Co LP
    Filed (acceptance time not in the bulk data set), ingested

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