CLEARSIGN TECHNOLOGIES CORP

Ticker: CLIR CUSIP: 185064102 Class: COM

TWO SIGMA INVESTMENTS, LP's Holding History (CIK: 0001179392)

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

Q4 2021

Shares 11,948 Value ($000) $16 Avg Close $1.66 Range $1.19 - $2.68

Q3 2021

Shares 10,838 Value ($000) $22 Avg Close $3.35 Range $1.93 - $4.95

Q4 2020

Shares 14,380 Value ($000) $42 Avg Close $2.60 Range $2.20 - $3.61

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2021	11,948	$16	$1.66	$1.19 - $2.68
Q3 2021	10,838	$22	$3.35	$1.93 - $4.95
Q4 2020	14,380	$42	$2.60	$2.20 - $3.61