LYEL Lyell Immunopharma, Inc.

BUYING 7D
Open-Market Value
+$49,999,984
Insiders
14
10%+
Cluster Period
Nov 5 – Nov 5, 2026
Duration
7 days
Cluster Timeline
Arch Venture Fund Xiii, L.P. (10%+) · $24,999,992 · Nov 4 · largest buy on record Arch Venture Partners IX, LLC (10%+) · $24,999,992 · Nov 4 · largest buy on record
Nov 5, 2026 Nov 5, 2026
C-suite Director Officer Other Dot size = trade value

2 of 2 insiders made their largest open-market buy at this company in this cluster.

Cluster Filings (2 filings)
Date Insider Role Type Value % of Holdings
11/5/26 Arch Venture Partners Ix, Llc 10%+ Buy +$24,999,992 71.5%
11/5/26 Arch Venture Fund Xiii, L.P. 10%+ Buy +$24,999,992 71.5%
Other Clusters for LYEL 2
Direction Window Insiders Value Period
BUYING 14D 14 +$49,999,984 11/5/26 – 11/5/26
BUYING 30D 14 +$49,999,984 11/5/26 – 11/5/26