AXCELIS TECHNOLOGIES INC

CUSIP: 054540109 Class: COMMON STOCK

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q2 2016
Shares 244,469 Value ($000) $658 Avg Close — Range —
Q1 2016
Shares 240,470 Value ($000) $673 Avg Close — Range —
Q4 2015
Shares 210,391 Value ($000) $545 Avg Close — Range —
Q3 2015
Shares 206,646 Value ($000) $552 Avg Close — Range —
Q2 2015
Shares 207,346 Value ($000) $614 Avg Close — Range —
Q1 2015
Shares 202,169 Value ($000) $481 Avg Close — Range —
Q4 2014
Shares 205,169 Value ($000) $525 Avg Close — Range —
Q3 2014
Shares 204,292 Value ($000) $407 Avg Close — Range —
Q2 2014
Shares 203,027 Value ($000) $406 Avg Close — Range —
Q1 2014
Shares 196,027 Value ($000) $421 Avg Close — Range —
Q4 2013
Shares 196,027 Value ($000) $478 Avg Close — Range —
Q3 2013
Shares 195,027 Value ($000) $412 Avg Close — Range —
Q2 2013
Shares 188,740 Value ($000) $344 Avg Close — Range —
Q1 2013
Shares 186,693 Value ($000) $233 Avg Close — Range —