ORBITAL ATK INC

CUSIP: 68557N103 Class: COM

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

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

Q1 2018
Shares 108,521 Value ($000) $14,391 Avg Close — Range —
Q4 2017
Shares 101,363 Value ($000) $13,329 Avg Close — Range —
Q3 2017
Shares 101,341 Value ($000) $13,495 Avg Close — Range —
Q2 2017
Shares 8,423 Value ($000) $828 Avg Close — Range —
Q1 2017
Shares 8,406 Value ($000) $824 Avg Close — Range —
Q4 2016
Shares 8,669 Value ($000) $761 Avg Close — Range —
Q3 2016
Shares 8,661 Value ($000) $660 Avg Close — Range —
Q2 2016
Shares 11,271 Value ($000) $960 Avg Close — Range —
Q1 2016
Shares 10,516 Value ($000) $914 Avg Close — Range —
Q4 2015
Shares 17,056 Value ($000) $1,524 Avg Close — Range —
Q3 2015
Shares 17,063 Value ($000) $1,226 Avg Close — Range —
Q2 2015
Shares 17,171 Value ($000) $1,260 Avg Close — Range —
Q1 2015
Shares 15,475 Value ($000) $1,186 Avg Close — Range —