COMPASS THERAPEUTICS INC

Ticker: CMPX CUSIP: 20454B104 Class: Common Stock

WELCH & FORBES LLC's Holding History (CIK: 0000105495)

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

Q4 2025

Shares 19,000 Value ($000) $102 Avg Close $4.62 Range $3.31 - $5.86

Q3 2025

Shares 15,000 Value ($000) $53 Avg Close $3.16 Range $2.50 - $3.83

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	19,000	$102	$4.62	$3.31 - $5.86
Q3 2025	15,000	$53	$3.16	$2.50 - $3.83