MRCY - SEC Form 4 insider transactions

EVP, CHRO Ratner Steven sold $32,524 worth of shares (356 units at $91.36) (SEC Form 4)

EVP, CLO & Corp Sec Kupinsky Stuart sold $95,230 worth of shares (1,000 units at $95.23) as part of a pre-agreed trading plan, decreasing direct ownership by 2% to 56,352 units (SEC Form 4)

Chairman, President & CEO Ballhaus William L exercised 244,848 shares at a strike of $42.05 and sold $15,691,355 worth of shares (173,209 units at $90.59), increasing direct ownership by 31% to 299,836 units (SEC Form 4) (for tax liability)

SVP, CAO Munro Douglas sold $65,614 worth of shares (657 units at $99.87), decreasing direct ownership by 5% to 12,982 units (SEC Form 4) to satisfy withholding tax

EVP, CHRO Ratner Steven sold $319,582 worth of shares (3,213 units at $99.47), decreasing direct ownership by 12% to 23,275 units (SEC Form 4) (for withholding tax)

EVP, CLO & Corp Sec Kupinsky Stuart sold $131,200 worth of shares (1,308 units at $100.31), decreasing direct ownership by 2% to 57,352 units (SEC Form 4) to satisfy withholding tax

EVP, CFO Farnsworth David E. sold $1,463,812 worth of shares (14,767 units at $99.13), decreasing direct ownership by 11% to 117,967 units (SEC Form 4) to cover withholding tax

Chairman, President & CEO Ballhaus William L sold $4,838,193 worth of shares (48,812 units at $99.12), decreasing direct ownership by 18% to 228,197 units (SEC Form 4) to satisfy tax liability

SVP, CAO Munro Douglas sold $99,431 worth of shares (898 units at $110.72), decreasing direct ownership by 6% to 13,639 units (SEC Form 4) (for withholding tax)

EVP, CHRO Ratner Steven sold $338,673 worth of shares (3,055 units at $110.86), decreasing direct ownership by 10% to 26,488 units (SEC Form 4) to satisfy withholding tax

EVP, CLO & Corp Sec Kupinsky Stuart sold $262,571 worth of shares (2,373 units at $110.65), decreasing direct ownership by 4% to 58,660 units (SEC Form 4) (withholding obligation)

EVP, CFO Farnsworth David E. sold $966,029 worth of shares (8,692 units at $111.14), decreasing direct ownership by 6% to 132,734 units (SEC Form 4) to satisfy withholding tax

Chairman, President & CEO Ballhaus William L sold $3,077,407 worth of shares (27,680 units at $111.18), decreasing direct ownership by 9% to 277,009 units (SEC Form 4) to satisfy withholding obligation

EVP, CHRO Ratner Steven returned 2,695 shares to the company, decreasing direct ownership by 8% to 29,543 units (SEC Form 4)

EVP, CLO & Corp Sec Kupinsky Stuart returned 6,977 shares to the company, decreasing direct ownership by 10% to 61,033 units (SEC Form 4)

EVP, CFO Farnsworth David E. returned 16,275 shares to the company, decreasing direct ownership by 10% to 141,426 units (SEC Form 4)

Chairman, President & CEO Ballhaus William L returned 70,287 shares to the company, decreasing direct ownership by 19% to 304,689 units (SEC Form 4)

Director Nearhos Barry R was granted 170 shares, increasing direct ownership by 0.54% to 31,494 units (SEC Form 4)

Director Lance Howard L sold $922,744 worth of shares (9,250 units at $99.76) (SEC Form 4)

Director Carvalho Orlando D sold $625,527 worth of shares (7,000 units at $89.36), decreasing direct ownership by 12% to 52,448 units (SEC Form 4)

EVP, CHRO Ratner Steven sold $184,920 worth of shares (2,000 units at $92.46), decreasing direct ownership by 6% to 32,238 units (SEC Form 4)

SEC Form 4 filed by Nearhos Barry R

SEC Form 4 filed by Farnsworth David E.

SEC Form 4 filed by Mercury Systems Inc

Director Jana Partners Management, Lp sold $41,412,246 worth of shares (452,057 units at $91.61) (SEC Form 4)

Director Lance Howard L sold $429,960 worth of shares (4,832 units at $88.98), decreasing direct ownership by 15% to 27,272 units (SEC Form 4)

EVP, CLO & Corp Sec Kupinsky Stuart sold $191,091 worth of shares (2,287 units at $83.56), decreasing direct ownership by 3% to 68,010 units (SEC Form 4)

SVP, CAO Munro Douglas sold $48,629 worth of shares (582 units at $83.56), decreasing direct ownership by 4% to 14,328 units (SEC Form 4)

Director Jana Partners Management, Lp sold $32,400,000 worth of shares (400,000 units at $81.00) (SEC Form 4)

Director Nearhos Barry R was granted 474 shares, increasing direct ownership by 2% to 31,079 units (SEC Form 4)

SVP, CAO Munro Douglas sold $97,570 worth of shares (1,329 units at $73.42), decreasing direct ownership by 8% to 14,678 units (SEC Form 4)

Director Jana Partners Management, Lp sold $75,450,000 worth of shares (1,000,000 units at $75.45) (SEC Form 4)

Director Plunkett Debora A sold $125,784 worth of shares (1,700 units at $73.99), decreasing direct ownership by 9% to 16,833 units (SEC Form 4)

Director Bua Jean A was granted 2,362 shares, increasing direct ownership by 43% to 7,815 units (SEC Form 4)

Director Jana Partners Management, Lp was granted 2,362 shares (SEC Form 4)

Director Plunkett Debora A was granted 2,362 shares, increasing direct ownership by 15% to 18,533 units (SEC Form 4)

Director Demuro Gerard J was granted 2,362 shares, increasing direct ownership by 16% to 17,481 units (SEC Form 4)

Director Nearhos Barry R was granted 2,362 shares, increasing direct ownership by 8% to 30,605 units (SEC Form 4)

Director Lance Howard L was granted 2,362 shares, increasing direct ownership by 8% to 32,104 units (SEC Form 4)

Director Carvalho Orlando D was granted 2,362 shares, increasing direct ownership by 4% to 59,448 units (SEC Form 4)

Director Disbrow Lisa S was granted 2,362 shares, increasing direct ownership by 8% to 31,236 units (SEC Form 4)

Director Nearhos Barry R was granted 487 shares, increasing direct ownership by 2% to 28,243 units (SEC Form 4)

VP, CAO Munro Douglas sold $4,918 worth of shares (67 units at $73.40), decreasing direct ownership by 0.42% to 16,007 units (SEC Form 4)

EVP, CHRO Ratner Steven sold $446,312 worth of shares (7,000 units at $63.76), decreasing direct ownership by 17% to 33,801 units (SEC Form 4)

VP, CAO Munro Douglas sold $48,384 worth of shares (739 units at $65.47), decreasing direct ownership by 4% to 16,074 units (SEC Form 4)

EVP, CHRO Ratner Steven sold $223,659 worth of shares (3,416 units at $65.47), decreasing direct ownership by 8% to 40,801 units (SEC Form 4)

EVP, CLO & Corp Sec Kupinsky Stuart sold $157,268 worth of shares (2,402 units at $65.47), decreasing direct ownership by 3% to 70,297 units (SEC Form 4)

EVP, CFO Farnsworth David E. sold $976,285 worth of shares (14,911 units at $65.47), decreasing direct ownership by 8% to 161,326 units (SEC Form 4)

Chairman, President & CEO Ballhaus William L sold $1,532,692 worth of shares (23,445 units at $65.37), decreasing direct ownership by 6% to 374,976 units (SEC Form 4)

VP, CAO Munro Douglas was granted 3,380 shares, increasing direct ownership by 25% to 16,813 units (SEC Form 4)

EVP, CHRO Ratner Steven was granted 9,043 shares, increasing direct ownership by 26% to 44,217 units (SEC Form 4)

EVP, CLO & Corp Sec Kupinsky Stuart was granted 9,865 shares, increasing direct ownership by 16% to 72,699 units (SEC Form 4)

EVP, CFO Farnsworth David E. was granted 13,153 shares, increasing direct ownership by 8% to 176,237 units (SEC Form 4)

Chairman, President & CEO Ballhaus William L was granted 44,940 shares, increasing direct ownership by 13% to 398,421 units (SEC Form 4)

Director Jana Partners Management, Lp sold $52,139,740 worth of shares (797,000 units at $65.42) (SEC Form 4)

Director Nearhos Barry R was granted 666 shares, increasing direct ownership by 2% to 27,756 units (SEC Form 4)

EVP, CHRO Ratner Steven sold $98,345 worth of shares (1,839 units at $53.48), decreasing direct ownership by 5% to 35,174 units (SEC Form 4)

VP, CAO Munro Douglas sold $109,788 worth of shares (2,419 units at $45.39), decreasing direct ownership by 11% to 13,433 units (SEC Form 4)

EVP, CHRO Ratner Steven returned 19,174 shares to the company, decreasing direct ownership by 34% to 37,013 units (SEC Form 4)

EVP, CHRO Ratner Steven sold $200,605 worth of shares (4,217 units at $47.57), decreasing direct ownership by 6% to 56,187 units (SEC Form 4)