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CONGRESS ASSET MANAGEMENT CO: ALNY position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of CONGRESS ASSET MANAGEMENT CO on ALNY, newest first. How the timeline and the estimate are built.

CONGRESS ASSET MANAGEMENT CO held 0 ALNY shares at 2026-09-30 per its 13F-HR filed 2026-10-06.

the latest 13F is the newest step

  1. period ended2026-09-30
    13F 0 shares
    Change vs previous 13F -265,701 shares

    13F-HR 0000897378-26-000015 filed by CONGRESS ASSET MANAGEMENT CO
    Accepted , ingested

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

  2. period ended2026-06-30
    13F 265,701 shares
    Change vs previous 13F -20,038 shares

    0.49% of the 13F portfolio, value $79,983,972.

    13F-HR 0000897378-26-000010 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2026-03-31
    13F 285,739 shares
    Change vs previous 13F +16,500 shares

    0.68% of the 13F portfolio, value $94,542,463.

    13F-HR 0000897378-26-000005 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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

  4. period ended2025-12-31
    13F 269,239 shares
    Change vs previous 13F +150,439 shares

    0.75% of the 13F portfolio, value $107,062,888.

    13F-HR 0000897378-26-000002 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-09-30
    13F 118,800 shares
    Change vs previous 13F not available

    0.36% of the 13F portfolio, value $54,172,800.

    13F-HR 0000897378-25-000016 filed by CONGRESS ASSET MANAGEMENT CO
    Filed (acceptance time not in the bulk data set), ingested

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