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Disclosery

ARCH Venture Management, LLC: PBLS position timeline

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

ARCH Venture Management, LLC held 6,412,780 PBLS 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 6,412,780 shares
    Change vs previous 13F not available

    15.95% of the 13F portfolio, value $175,517,789.

    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 ยง4.2).