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Octagon Capital Advisors LP: TSHA position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Octagon Capital Advisors LP on TSHA, newest first. How the timeline and the estimate are built.

Octagon Capital Advisors LP held 9,693,244 TSHA 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 9,693,244 shares
    Change vs previous 13F +833,333 shares

    6.06% of the 13F portfolio, value $66,010,992.

    13F-HR 0001839435-26-000004 filed by Octagon Capital Advisors 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 8,859,911 shares
    Change vs previous 13F 0 shares

    4.38% of the 13F portfolio, value $39,603,802.

    13F-HR 0001839435-26-000003 filed by Octagon Capital Advisors 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 8,859,911 shares
    Change vs previous 13F -207,589 shares

    6.1% of the 13F portfolio, value $48,729,511.

    13F-HR 0001839435-26-000002 filed by Octagon Capital Advisors 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 9,067,500 shares
    Change vs previous 13F -3,525,000 shares

    4.63% of the 13F portfolio, value $29,650,725.

    13F-HR 0001839435-25-000010 filed by Octagon Capital Advisors 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 12,592,500 shares
    Change vs previous 13F +1,892,500 shares

    6.38% of the 13F portfolio, value $29,088,675.

    13F-HR 0001839435-25-000007 filed by Octagon Capital Advisors 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/A 10,700,000 shares
    Change vs previous 13F +250,000 shares

    2.93% of the 13F portfolio, value $14,873,000.

    13F-HR/A 0001839435-25-000005 filed by Octagon Capital Advisors 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 10,450,000 shares
    Change vs previous 13F +5,877,778 shares

    3.08% of the 13F portfolio, value $18,078,500.

    13F-HR 0001839435-25-000002 filed by Octagon Capital Advisors 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 4,572,222 shares
    Change vs previous 13F not available

    1.47% of the 13F portfolio, value $9,190,166.

    13F-HR 0001839435-24-000008 filed by Octagon Capital Advisors LP
    Filed (acceptance time not in the bulk data set), ingested

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