FUEL TECH INC

Ticker: FTEK CUSIP: 359523107 Class: COM

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2025

Shares 81,011 Value ($000) $126 Avg Close $2.20 Range $1.41 - $3.45

Q2 2025

Shares 25,088 Value ($000) $63 Avg Close $1.43 Range $0.91 - $2.85

Q3 2021

Shares 71,543 Value ($000) $124 Avg Close $1.89 Range $1.66 - $2.50

Q2 2021

Shares 119,861 Value ($000) $282 Avg Close $2.32 Range $1.65 - $3.23

Q1 2021

Shares 101,444 Value ($000) $319 Avg Close $4.40 Range $2.65 - $6.65

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	81,011	$126	$2.20	$1.41 - $3.45
Q2 2025	25,088	$63	$1.43	$0.91 - $2.85
Q3 2021	71,543	$124	$1.89	$1.66 - $2.50
Q2 2021	119,861	$282	$2.32	$1.65 - $3.23
Q1 2021	101,444	$319	$4.40	$2.65 - $6.65