FUEL TECH INC

Ticker: FTEK CUSIP: 359523107 Class: COM

JANE STREET GROUP, LLC's Holding History (CIK: 0001595888)

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

Q4 2025

Shares 260,782 Value ($000) $407 Avg Close $2.20 Range $1.41 - $3.45

Q3 2025

Shares 236,922 Value ($000) $711 Avg Close $2.90 Range $2.23 - $3.65

Q4 2022

Shares 11,810 Value ($000) $15 Avg Close $1.28 Range $1.14 - $1.66

Q3 2022

Shares 22,731 Value ($000) $27 Avg Close $1.30 Range $1.13 - $1.56

Q2 2022

Shares 10,966 Value ($000) $14 Avg Close $1.30 Range $1.02 - $1.54

Q4 2021

Shares 14,955 Value ($000) $21 Avg Close $1.76 Range $1.35 - $2.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	260,782	$407	$2.20	$1.41 - $3.45
Q3 2025	236,922	$711	$2.90	$2.23 - $3.65
Q4 2022	11,810	$15	$1.28	$1.14 - $1.66
Q3 2022	22,731	$27	$1.30	$1.13 - $1.56
Q2 2022	10,966	$14	$1.30	$1.02 - $1.54
Q4 2021	14,955	$21	$1.76	$1.35 - $2.50