ARCH Venture Partners XIII, L.P. bought $12.5M of LYEL

bought $12.50m of LYEL

488,090 shares @ $25.61

Increased holdings by +52.00%

Largest trade (out of 1)

Large TradeCluster Buy

Trade made by a 10% owner

Part of a cluster of 10 transactions by 10 insiders

Unscheduled trade

Price 29% above 200-day moving average

Small Cap stock — insider trades carry more weight

LYELLyell Immunopharma, Inc.

HealthcareBiotechnology

1D0.00%

1W+21.02%

1M+7.66%

3M—

6M—

1Y—

Recent insider activity at LYEL