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Disclosery

Woodline Partners LP: AMPL position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Woodline Partners LP on AMPL, newest first. How the timeline and the estimate are built.

Woodline Partners LP held 41,555 AMPL 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 41,555 shares
    Change vs previous 13F +41,555 shares

    <0.01% of the 13F portfolio, value $317,896.

    13F-HR 0001172661-26-003541 filed by Woodline Partners 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/A 0 shares
    Change vs previous 13F -53,063 shares

    13F-HR/A 0001172661-26-002263 filed by Woodline Partners LP
    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.

  3. period ended2025-12-31
    13F 53,063 shares
    Change vs previous 13F +15,138 shares

    <0.01% of the 13F portfolio, value $614,470.

    13F-HR 0001172661-26-000861 filed by Woodline Partners 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 37,925 shares
    Change vs previous 13F +37,925 shares

    <0.01% of the 13F portfolio, value $406,556.

    13F-HR 0001172661-25-004991 filed by Woodline Partners LP
    Filed (acceptance time not in the bulk data set), ingested

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

  5. period ended2025-03-31
    13F 0 shares
    Change vs previous 13F -13,078 shares

    13F-HR 0001172661-25-002043 filed by Woodline Partners LP
    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.

  6. period ended2024-12-31
    13F 13,078 shares
    Change vs previous 13F -81,145 shares

    <0.01% of the 13F portfolio, value $137,973.

    13F-HR 0001172661-25-001092 filed by Woodline Partners LP
    Filed (acceptance time not in the bulk data set), ingested

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

  7. period ended2024-09-30
    13F 94,223 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $845,180.

    13F-HR 0001172661-24-004991 filed by Woodline Partners LP
    Filed (acceptance time not in the bulk data set), ingested

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