AXCELIS TECHNOLOGIES INC

Ticker: ACLS CUSIP: 054540208 Class: EQTY

ADAGE CAPITAL PARTNERS GP, L.L.C.'s Holding History (CIK: 0001165408)

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

Q3 2023

Shares 54,835 Value ($000) $8,941 Avg Close $175.88 Range $152.71 - $201.00

Q2 2023

Shares 94,835 Value ($000) $17,386 Avg Close $143.96 Range $105.28 - $186.68

Q1 2023

Shares 95,942 Value ($000) $12,784 Avg Close $117.49 Range $76.97 - $136.38

Q4 2022

Shares 158,000 Value ($000) $12,539 Avg Close $70.45 Range $49.78 - $88.73

Q3 2022

Shares 253,000 Value ($000) $15,322 Avg Close $64.60 Range $46.41 - $83.39

Q2 2022

Shares 225,000 Value ($000) $12,339 Avg Close $57.95 Range $50.69 - $77.20

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2023	54,835	$8,941	$175.88	$152.71 - $201.00
Q2 2023	94,835	$17,386	$143.96	$105.28 - $186.68
Q1 2023	95,942	$12,784	$117.49	$76.97 - $136.38
Q4 2022	158,000	$12,539	$70.45	$49.78 - $88.73
Q3 2022	253,000	$15,322	$64.60	$46.41 - $83.39
Q2 2022	225,000	$12,339	$57.95	$50.69 - $77.20