ARCH Venture Management, LLC: LYEL position timeline

ARCH Venture Management, LLC held 3,247,162 LYEL 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 3,247,162 shares

   Change vs previous 13F 0 shares

   4.14% of the 13F portfolio, value $45,525,211.

   13F-HR 0001012975-26-000794 filed by ARCH Venture Management, LLC
   Filed 2026-08-14 (acceptance time not in the bulk data set), ingested 2026-10-06 09:57:27 UTC

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

2. period ended2026-03-31

   13F 3,247,162 shares

   Change vs previous 13F +488,090 shares

   9.62% of the 13F portfolio, value $65,138,070.

   13F-HR 0001012975-26-000461 filed by ARCH Venture Management, LLC
   Filed 2026-05-15 (acceptance time not in the bulk data set), ingested 2026-10-06 09:58:43 UTC

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

3. period ended2025-12-31

   13F 2,759,072 shares

   Change vs previous 13F 0 shares

   13.03% of the 13F portfolio, value $84,924,236.

   13F-HR 0001012975-26-000153 filed by ARCH Venture Management, LLC
   Filed 2026-02-17 (acceptance time not in the bulk data set), ingested 2026-10-07 03:01:36 UTC

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

4. period ended2025-09-30

   13F 2,759,072 shares

   Change vs previous 13F +938,438 shares

   9.1% of the 13F portfolio, value $44,807,329.

   13F-HR 0001012975-25-000787 filed by ARCH Venture Management, LLC
   Filed 2025-11-14 (acceptance time not in the bulk data set), ingested 2026-10-07 03:02:25 UTC

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

5. period ended2025-06-30

   13F 1,820,634 shares

   Change vs previous 13F not available

   5.39% of the 13F portfolio, value $16,112,611.

   13F-HR 0001012975-25-000444 filed by ARCH Venture Management, LLC
   Filed 2025-08-14 (acceptance time not in the bulk data set), ingested 2026-10-07 18:23:11 UTC

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