CLEARSIGN TECHNOLOGIES CORP

Ticker: CLIR CUSIP: 185064102 Class: COM

Stonebridge Capital Advisors LLC's Holding History (CIK: 0001600035)

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

Q3 2023

Shares 2,600 Value ($000) $3 Avg Close $1.16 Range $0.90 - $1.51

Q2 2023

Shares 2,600 Value ($000) $3 Avg Close $1.18 Range $0.79 - $1.75

Q1 2023

Shares 2,600 Value ($000) $2 Avg Close $0.76 Range $0.50 - $0.88

Q4 2022

Shares 2,600 Value ($000) $1 Avg Close $0.70 Range $0.50 - $0.98

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2023	2,600	$3	$1.16	$0.90 - $1.51
Q2 2023	2,600	$3	$1.18	$0.79 - $1.75
Q1 2023	2,600	$2	$0.76	$0.50 - $0.88
Q4 2022	2,600	$1	$0.70	$0.50 - $0.98