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Parallax Volatility Advisers, L.P.: GM position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Parallax Volatility Advisers, L.P. on GM, newest first. How the timeline and the estimate are built.

Parallax Volatility Advisers, L.P. held 36,005 GM 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 36,005 shares
    Change vs previous 13F +35,987 shares

    0.1% of the 13F portfolio, value $2,775,265.

    13F-HR 0001172661-26-003723 filed by Parallax Volatility Advisers, L.P.
    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 18 shares
    Change vs previous 13F -174,539 shares

    <0.01% of the 13F portfolio, value $1,341.

    13F-HR 0001172661-26-002271 filed by Parallax Volatility Advisers, L.P.
    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 174,557 shares
    Change vs previous 13F -171,246 shares

    0.44% of the 13F portfolio, value $14,194,975.

    13F-HR 0001172661-26-001067 filed by Parallax Volatility Advisers, L.P.
    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 345,803 shares
    Change vs previous 13F +5,792 shares

    0.62% of the 13F portfolio, value $21,083,609.

    13F-HR 0001172661-25-005017 filed by Parallax Volatility Advisers, L.P.
    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 340,011 shares
    Change vs previous 13F +191,953 shares

    0.67% of the 13F portfolio, value $16,731,941.

    13F-HR 0001172661-25-003451 filed by Parallax Volatility Advisers, L.P.
    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 148,058 shares
    Change vs previous 13F -1,172,547 shares

    0.22% of the 13F portfolio, value $6,963,168.

    13F-HR 0001172661-25-002304 filed by Parallax Volatility Advisers, L.P.
    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 1,320,605 shares
    Change vs previous 13F +819,342 shares

    1.55% of the 13F portfolio, value $70,348,628.

    13F-HR 0001172661-25-001026 filed by Parallax Volatility Advisers, L.P.
    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 501,263 shares
    Change vs previous 13F not available

    0.58% of the 13F portfolio, value $22,476,633.

    13F-HR 0001172661-24-004876 filed by Parallax Volatility Advisers, L.P.
    Filed (acceptance time not in the bulk data set), ingested

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