ORBITAL ATK INC

CUSIP: 68557N103 Class: COM

Westchester Capital Management, LLC's Holding History (CIK: 0001512805)

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

Q1 2018
Shares 630,529 Value ($000) $83,614 Avg Close — Range —
Q4 2017
Shares 549,750 Value ($000) $72,292 Avg Close — Range —
Q3 2017
Shares 42,316 Value ($000) $5,635 Avg Close — Range —