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

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

Parallax Volatility Advisers, L.P. held 1,088 BKR 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 1,088 shares
    Change vs previous 13F -77,215 shares

    <0.01% of the 13F portfolio, value $60,384.

    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 78,303 shares
    Change vs previous 13F +52,184 shares

    0.21% of the 13F portfolio, value $4,717,756.

    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 26,119 shares
    Change vs previous 13F -15,430 shares

    0.04% of the 13F portfolio, value $1,189,459.

    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 41,549 shares
    Change vs previous 13F +41,549 shares

    0.06% of the 13F portfolio, value $2,024,267.

    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 0 shares
    Change vs previous 13F -32,562 shares

    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).

    Exited: the 13F for this period no longer lists the position.

  6. period ended2025-03-31
    13F 32,562 shares
    Change vs previous 13F -55,628 shares

    0.05% of the 13F portfolio, value $1,431,100.

    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 88,190 shares
    Change vs previous 13F +9,719 shares

    0.08% of the 13F portfolio, value $3,617,554.

    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 78,471 shares
    Change vs previous 13F not available

    0.07% of the 13F portfolio, value $2,836,727.

    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).