ASPEN TECHNOLOGY INC

CUSIP: 04532710 Class: COM

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q3 2016
Shares 38,500 Value ($000) $1,801 Avg Close — Range —
Q1 2016
Shares 408,453 Value ($000) $14,757 Avg Close — Range —
Q4 2015
Shares 491,759 Value ($000) $18,569 Avg Close — Range —
Q3 2015
Shares 58,127 Value ($000) $2,648 Avg Close — Range —
Q2 2015
Shares 58,127 Value ($000) $2,648 Avg Close — Range —
Q1 2015
Shares 112,852 Value ($000) $4,344 Avg Close — Range —
Q4 2014
Shares 80,016 Value ($000) $2,802 Avg Close — Range —
Q3 2014
Shares 479,187 Value ($000) $18,075 Avg Close — Range —
Q2 2014
Shares 711,616 Value ($000) $33,019 Avg Close — Range —
Q1 2014
Shares 507,925 Value ($000) $21,516 Avg Close — Range —
Q4 2013
Shares 374,344 Value ($000) $15,648 Avg Close — Range —
Q3 2013
Shares 61,917 Value ($000) $2,139 Avg Close — Range —
Q2 2013
Shares 383,628 Value ($000) $11,045 Avg Close — Range —