ALUMIS INC

Ticker: ALMS CUSIP: 022307102 Class: COM

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 1,405 Value ($000) $14 Avg Close $6.98 Range $3.92 - $12.44

Q3 2025

Shares 22,583 Value ($000) $90 Avg Close $4.12 Range $2.92 - $5.13

Q2 2025

Shares 69,815 Value ($000) $209 Avg Close $4.72 Range $2.76 - $10.49

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,405	$14	$6.98	$3.92 - $12.44
Q3 2025	22,583	$90	$4.12	$2.92 - $5.13
Q2 2025	69,815	$209	$4.72	$2.76 - $10.49