AXCELIS TECHNOLOGIES INC

Ticker: ACLS CUSIP: 054540208 Class: EQTY

Horizon Investment Services, LLC's Holding History (CIK: 0001426940)

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

Q4 2023

Shares 10,890 Value ($000) $1,412 Avg Close $137.83 Range $120.54 - $170.97

Q3 2023

Shares 11,035 Value ($000) $1,799 Avg Close $175.88 Range $152.71 - $201.00

Q2 2023

Shares 11,546 Value ($000) $2,117 Avg Close $143.96 Range $105.28 - $186.68

Q1 2023

Shares 11,913 Value ($000) $1,587 Avg Close $117.49 Range $76.97 - $136.38

Q4 2022

Shares 13,246 Value ($000) $1,051 Avg Close $70.45 Range $49.78 - $88.73

Q3 2022

Shares 13,361 Value ($000) $809 Avg Close $64.60 Range $46.41 - $83.39

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2023	10,890	$1,412	$137.83	$120.54 - $170.97
Q3 2023	11,035	$1,799	$175.88	$152.71 - $201.00
Q2 2023	11,546	$2,117	$143.96	$105.28 - $186.68
Q1 2023	11,913	$1,587	$117.49	$76.97 - $136.38
Q4 2022	13,246	$1,051	$70.45	$49.78 - $88.73
Q3 2022	13,361	$809	$64.60	$46.41 - $83.39