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ARCH Venture Management, LLC: ERAS position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ARCH Venture Management, LLC on ERAS, newest first. How the timeline and the estimate are built.

ARCH Venture Management, LLC held 7,091,557 ERAS 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 7,091,557 shares
    Change vs previous 13F 0 shares

    11.81% of the 13F portfolio, value $129,917,324.

    13F-HR 0001012975-26-000794 filed by ARCH Venture Management, 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 7,091,557 shares
    Change vs previous 13F -3,963,997 shares

    16.95% of the 13F portfolio, value $114,741,392.

    13F-HR 0001012975-26-000461 filed by ARCH Venture Management, 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 11,055,554 shares
    Change vs previous 13F 0 shares

    6.31% of the 13F portfolio, value $41,126,661.

    13F-HR 0001012975-26-000153 filed by ARCH Venture Management, 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 11,055,554 shares
    Change vs previous 13F 0 shares

    4.89% of the 13F portfolio, value $24,101,108.

    13F-HR 0001012975-25-000787 filed by ARCH Venture Management, 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 11,055,554 shares
    Change vs previous 13F 0 shares

    4.71% of the 13F portfolio, value $14,095,831.

    13F-HR 0001012975-25-000444 filed by ARCH Venture Management, 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 11,055,554 shares
    Change vs previous 13F 0 shares

    7.34% of the 13F portfolio, value $15,146,109.

    13F-HR 0001012975-25-000245 filed by ARCH Venture Management, 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 11,055,554 shares
    Change vs previous 13F 0 shares

    12.05% of the 13F portfolio, value $27,749,441.

    13F-HR 0001012975-25-000089 filed by ARCH Venture Management, 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 11,055,554 shares
    Change vs previous 13F not available

    11.58% of the 13F portfolio, value $30,181,662.

    13F-HR 0001012975-24-000476 filed by ARCH Venture Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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