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Disclosery

GROUP ONE TRADING LLC: BCRX position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of GROUP ONE TRADING LLC on BCRX, newest first. How the timeline and the estimate are built.

GROUP ONE TRADING LLC held 72,749 BCRX 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 72,749 shares
    Change vs previous 13F -63,533 shares

    0.02% of the 13F portfolio, value $727,490.

    13F-HR 0000932540-26-000011 filed by GROUP ONE TRADING LLC
    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 136,282 shares
    Change vs previous 13F +75,758 shares

    0.04% of the 13F portfolio, value $1,297,405.

    13F-HR 0000932540-26-000005 filed by GROUP ONE TRADING LLC
    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 60,524 shares
    Change vs previous 13F +20,997 shares

    0.01% of the 13F portfolio, value $472,087.

    13F-HR 0000932540-26-000002 filed by GROUP ONE TRADING LLC
    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 39,527 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $300,010.

    13F-HR 0000932540-25-000040 filed by GROUP ONE TRADING LLC
    Filed (acceptance time not in the bulk data set), ingested

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