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EcoR1 Capital, LLC: ETON position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of EcoR1 Capital, LLC on ETON, newest first. How the timeline and the estimate are built.

EcoR1 Capital, LLC held 2,171,938 ETON 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 2,171,938 shares
    Change vs previous 13F 0 shares

    3.9% of the 13F portfolio, value $78,624,156.

    13F-HR 0000935836-26-000415 filed by EcoR1 Capital, 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 2,171,938 shares
    Change vs previous 13F +141,394 shares

    2.29% of the 13F portfolio, value $53,603,430.

    13F-HR 0000935836-26-000270 filed by EcoR1 Capital, 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 2,030,544 shares
    Change vs previous 13F 0 shares

    1.57% of the 13F portfolio, value $34,336,499.

    13F-HR 0000935836-26-000101 filed by EcoR1 Capital, 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 2,030,544 shares
    Change vs previous 13F 0 shares

    2.12% of the 13F portfolio, value $44,123,721.

    13F-HR 0000935836-25-000671 filed by EcoR1 Capital, LLC
    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 2,030,544 shares
    Change vs previous 13F +91,256 shares

    1.72% of the 13F portfolio, value $28,935,252.

    13F-HR 0000935836-25-000506 filed by EcoR1 Capital, LLC
    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 1,939,288 shares
    Change vs previous 13F +109,685 shares

    1.5% of the 13F portfolio, value $25,171,958.

    13F-HR 0000935836-25-000338 filed by EcoR1 Capital, LLC
    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 1,829,603 shares
    Change vs previous 13F +1,263,528 shares

    0.97% of the 13F portfolio, value $24,370,312.

    13F-HR 0000935836-25-000164 filed by EcoR1 Capital, LLC
    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 566,075 shares
    Change vs previous 13F not available

    0.12% of the 13F portfolio, value $3,396,450.

    13F-HR 0000935836-24-000682 filed by EcoR1 Capital, LLC
    Filed (acceptance time not in the bulk data set), ingested

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