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J. Goldman & Co LP: MAGN position timeline

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

J. Goldman & Co LP held 424,989 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 424,989 shares
    Change vs previous 13F +37,708 shares

    0.18% of the 13F portfolio, value $4,993,621.

    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 387,281 shares
    Change vs previous 13F -150,939 shares

    0.17% of the 13F portfolio, value $3,683,042.

    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 538,220 shares
    Change vs previous 13F +99,523 shares

    0.32% of the 13F portfolio, value $8,148,651.

    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 438,697 shares
    Change vs previous 13F -71,822 shares

    0.19% of the 13F portfolio, value $5,141,529.

    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 510,519 shares
    Change vs previous 13F +11,034 shares

    0.19% of the 13F portfolio, value $6,167,070.

    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 499,485 shares
    Change vs previous 13F -8,274 shares

    0.32% of the 13F portfolio, value $9,070,648.

    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 507,759 shares
    Change vs previous 13F not available

    0.33% of the 13F portfolio, value $9,225,981.

    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).