ORBITAL ATK INC

CUSIP: 68557N103 Class: COM

Alyeska Investment Group, L.P.'s Holding History (CIK: 0001453072)

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

Q1 2018
Shares 744,437 Value ($000) $98,720 Avg Close — Range —
Q4 2017
Shares 9,511 Value ($000) $1,251 Avg Close — Range —
Q2 2017
Shares 1,094,167 Value ($000) $107,622 Avg Close — Range —
Q1 2017
Shares 1,384,017 Value ($000) $135,634 Avg Close — Range —
Q4 2016
Shares 1,317,878 Value ($000) $115,617 Avg Close — Range —
Q3 2016
Shares 1,307,218 Value ($000) $99,649 Avg Close — Range —
Q2 2016
Shares 906,965 Value ($000) $77,219 Avg Close — Range —
Q1 2016
Shares 768,656 Value ($000) $66,827 Avg Close — Range —
Q4 2015
Shares 713,907 Value ($000) $63,780 Avg Close — Range —
Q3 2015
Shares 919,412 Value ($000) $66,078 Avg Close — Range —
Q2 2015
Shares 584,171 Value ($000) $42,855 Avg Close — Range —
Q1 2015
Shares 478,466 Value ($000) $36,665 Avg Close — Range —