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Disclosery

Fairmount Funds Management LLC: AXSM position timeline

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

Fairmount Funds Management LLC held 0 AXSM shares at 2025-12-31 per its 13F-HR filed 2026-02-17.

the latest 13F is the newest step

  1. period ended2025-12-31
    13F 0 shares
    Change vs previous 13F -815,176 shares

    13F-HR 0001104659-26-016303 filed by Fairmount Funds Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  2. period ended2025-09-30
    13F 815,176 shares
    Change vs previous 13F 0 shares

    8.91% of the 13F portfolio, value $99,003,125.

    13F-HR 0001104659-25-112427 filed by Fairmount Funds 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 ended2025-06-30
    13F 815,176 shares
    Change vs previous 13F 0 shares

    11.02% of the 13F portfolio, value $85,096,223.

    13F-HR 0001104659-25-078521 filed by Fairmount Funds 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 ended2025-03-31
    13F 815,176 shares
    Change vs previous 13F -653,807 shares

    14.75% of the 13F portfolio, value $95,073,977.

    13F-HR 0001104659-25-049337 filed by Fairmount Funds 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 ended2024-12-31
    13F 1,468,983 shares
    Change vs previous 13F -891,094 shares

    12.36% of the 13F portfolio, value $124,290,652.

    13F-HR 0001104659-25-014003 filed by Fairmount Funds 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 ended2024-09-30
    13F 2,360,077 shares
    Change vs previous 13F not available

    17.2% of the 13F portfolio, value $212,100,120.

    13F-HR 0001104659-24-118833 filed by Fairmount Funds Management LLC
    Filed (acceptance time not in the bulk data set), ingested

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