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ARDSLEY ADVISORY PARTNERS LP: TAC position timeline

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

ARDSLEY ADVISORY PARTNERS LP held 345,000 TAC 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 345,000 shares
    Change vs previous 13F +70,000 shares

    0.52% of the 13F portfolio, value $4,772,881.

    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 275,000 shares
    Change vs previous 13F +95,000 shares

    0.55% of the 13F portfolio, value $3,615,144.

    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 180,000 shares
    Change vs previous 13F +65,000 shares

    0.29% of the 13F portfolio, value $2,276,555.

    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 115,000 shares
    Change vs previous 13F +10,000 shares

    0.24% of the 13F portfolio, value $1,571,074.

    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 105,000 shares
    Change vs previous 13F -25,000 shares

    0.19% of the 13F portfolio, value $1,132,572.

    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 130,000 shares
    Change vs previous 13F -545,000 shares

    0.28% of the 13F portfolio, value $1,213,273.

    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 675,000 shares
    Change vs previous 13F -225,000 shares

    1.85% of the 13F portfolio, value $9,545,597.

    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 900,000 shares
    Change vs previous 13F not available

    1.77% of the 13F portfolio, value $9,330,080.

    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).