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ARDSLEY ADVISORY PARTNERS LP: AMZN position timeline

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

ARDSLEY ADVISORY PARTNERS LP held 69,000 AMZN 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 69,000 shares
    Change vs previous 13F -37,000 shares

    1.79% of the 13F portfolio, value $16,445,460.

    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 106,000 shares
    Change vs previous 13F +52,000 shares

    3.36% of the 13F portfolio, value $22,076,620.

    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 54,000 shares
    Change vs previous 13F -21,500 shares

    1.59% of the 13F portfolio, value $12,469,140.

    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 75,500 shares
    Change vs previous 13F +12,500 shares

    2.54% of the 13F portfolio, value $16,568,475.

    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 63,000 shares
    Change vs previous 13F +26,700 shares

    2.26% of the 13F portfolio, value $13,816,530.

    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 36,300 shares
    Change vs previous 13F -16,200 shares

    1.6% of the 13F portfolio, value $6,895,548.

    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 52,500 shares
    Change vs previous 13F +2,500 shares

    2.23% of the 13F portfolio, value $11,517,975.

    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 50,000 shares
    Change vs previous 13F not available

    1.76% of the 13F portfolio, value $9,279,500.

    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).