CLEARSIGN TECHNOLOGIES CORP

Ticker: CLIR CUSIP: 185064102 Class: COM

TWO SIGMA SECURITIES, LLC's Holding History (CIK: 0001450144)

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

Q4 2025

Shares 26,794 Value ($000) $15 Avg Close $0.80 Range $0.55 - $1.12

Q2 2025

Shares 30,306 Value ($000) $17 Avg Close $0.60 Range $0.46 - $0.78

Q2 2024

Shares 52,168 Value ($000) $44 Avg Close $0.82 Range $0.62 - $1.03

Q2 2022

Shares 11,369 Value ($000) $14 Avg Close $1.29 Range $1.00 - $1.77

Q2 2020

Shares 43,032 Value ($000) $90 Avg Close $0.95 Range $0.45 - $4.11

Q1 2019

Shares 10,977 Value ($000) $10 Avg Close $1.10 Range $0.85 - $1.40

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	26,794	$15	$0.80	$0.55 - $1.12
Q2 2025	30,306	$17	$0.60	$0.46 - $0.78
Q2 2024	52,168	$44	$0.82	$0.62 - $1.03
Q2 2022	11,369	$14	$1.29	$1.00 - $1.77
Q2 2020	43,032	$90	$0.95	$0.45 - $4.11
Q1 2019	10,977	$10	$1.10	$0.85 - $1.40