ORBITAL ATK INC

CUSIP: 68557N103 Class: COM

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q1 2017
Shares 1,474 Value ($000) $144 Avg Close — Range —
Q4 2016
Shares 5,504 Value ($000) $483 Avg Close — Range —
Q1 2016
Shares 937 Value ($000) $81 Avg Close — Range —
Q2 2015
Shares 508 Value ($000) $37 Avg Close — Range —
Q1 2015
Shares 2,392 Value ($000) $183 Avg Close — Range —