X0306 4 2016-02-26 0 0001056239 L 3 COMMUNICATIONS HOLDINGS INC LLL 0001321951 Dambrosio Ralph C/O L-3 COMMUNICATIONS CORPORATION 600 THIRD AVENUE NEW YORK NY 10016 0 1 0 0 Senior Vice President and CFO Common Stock 2016-02-26 4 M 0 6392 95.42 A 50027 D Common Stock 2016-02-26 4 S 0 6392 119.00 D 43635 D 08/01/2007 Employee Stock Option (Right to Buy) 95.42 2016-02-26 4 M 0 6392 0.00 D 2017-08-01 Common Stock 6392 0 D Does not include shares issuable upon the exercise of options. This option vests annually in equal one-third increments beginning on the one-year anniversary of the grant date. /s/ Allen E. Danzig as Attorney-in-Fact 2016-02-29