ACI WORLDWIDE INC

Ticker: ACIW CUSIP: 004498101 Class: EQTY

WESTFIELD CAPITAL MANAGEMENT CO LP's Holding History (CIK: 0001177719)

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

Q4 2020

Shares 568,940 Value ($000) $21,864 Avg Close $33.51 Range $26.05 - $39.99

Q3 2020

Shares 594,765 Value ($000) $15,541 Avg Close $27.68 Range $23.55 - $31.97

Q2 2020

Shares 624,878 Value ($000) $16,865 Avg Close $26.14 Range $21.01 - $29.67

Q1 2020

Shares 597,192 Value ($000) $14,422 Avg Close $31.91 Range $20.03 - $39.37

Q4 2019

Shares 511,192 Value ($000) $19,367 Avg Close $34.07 Range $29.14 - $38.12

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	568,940	$21,864	$33.51	$26.05 - $39.99
Q3 2020	594,765	$15,541	$27.68	$23.55 - $31.97
Q2 2020	624,878	$16,865	$26.14	$21.01 - $29.67
Q1 2020	597,192	$14,422	$31.91	$20.03 - $39.37
Q4 2019	511,192	$19,367	$34.07	$29.14 - $38.12