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ARDSLEY ADVISORY PARTNERS LP: XIFR position timeline

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

ARDSLEY ADVISORY PARTNERS LP held 525,000 XIFR shares at 2026-06-30 per its 13F-HR filed 2026-07-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 525,000 shares
    Change vs previous 13F +50,000 shares

    0.67% of the 13F portfolio, value $6,200,250.

    13F-HR 0001172661-26-002590 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).

  2. period ended2026-03-31
    13F 475,000 shares
    Change vs previous 13F +25,000 shares

    0.77% of the 13F portfolio, value $5,044,500.

    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).

  3. period ended2025-12-31
    13F 450,000 shares
    Change vs previous 13F -430,000 shares

    0.57% of the 13F portfolio, value $4,500,000.

    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).

  4. period ended2025-09-30
    13F 880,000 shares
    Change vs previous 13F +150,000 shares

    1.37% of the 13F portfolio, value $8,949,600.

    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).

  5. period ended2025-06-30
    13F 730,000 shares
    Change vs previous 13F -145,000 shares

    0.98% of the 13F portfolio, value $5,986,000.

    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).

  6. period ended2025-03-31
    13F 875,000 shares
    Change vs previous 13F +685,000 shares

    1.93% of the 13F portfolio, value $8,312,500.

    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).

  7. period ended2024-12-31
    13F 190,000 shares
    Change vs previous 13F +170,000 shares

    0.66% of the 13F portfolio, value $3,382,000.

    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).

  8. period ended2024-09-30
    13F 20,000 shares
    Change vs previous 13F not available

    0.1% of the 13F portfolio, value $552,400.

    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).