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Disclosery

ARDSLEY ADVISORY PARTNERS LP: FSLR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ARDSLEY ADVISORY PARTNERS LP on FSLR, newest first. How the timeline and the estimate are built.

ARDSLEY ADVISORY PARTNERS LP held 0 FSLR shares at 2026-03-31 per its 13F-HR filed 2026-05-15.

the latest 13F is the newest step

  1. period ended2026-03-31
    13F 0 shares
    Change vs previous 13F -117,500 shares

    13F-HR 0001172661-26-002039 filed by ARDSLEY ADVISORY 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.

  2. period ended2025-12-31
    13F 117,500 shares
    Change vs previous 13F -11,500 shares

    3.91% of the 13F portfolio, value $30,694,525.

    13F-HR 0001172661-26-000864 filed by ARDSLEY ADVISORY PARTNERS LP
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-09-30
    13F 129,000 shares
    Change vs previous 13F +114,000 shares

    4.36% of the 13F portfolio, value $28,448,370.

    13F-HR 0001172661-25-004897 filed by ARDSLEY ADVISORY 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 ended2025-06-30
    13F 15,000 shares
    Change vs previous 13F +10,000 shares

    0.41% of the 13F portfolio, value $2,483,100.

    13F-HR 0001172661-25-003308 filed by ARDSLEY ADVISORY 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 5,000 shares
    Change vs previous 13F -36,000 shares

    0.15% of the 13F portfolio, value $632,150.

    13F-HR 0001172661-25-002033 filed by ARDSLEY ADVISORY PARTNERS LP
    Filed (acceptance time not in the bulk data set), ingested

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

  6. period ended2024-12-31
    13F 41,000 shares
    Change vs previous 13F +13,000 shares

    1.4% of the 13F portfolio, value $7,225,840.

    13F-HR 0001172661-25-000980 filed by ARDSLEY ADVISORY 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 28,000 shares
    Change vs previous 13F not available

    1.32% of the 13F portfolio, value $6,984,320.

    13F-HR 0001172661-24-004816 filed by ARDSLEY ADVISORY PARTNERS LP
    Filed (acceptance time not in the bulk data set), ingested

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