0000902664-23-004545.txt : 20230822 0000902664-23-004545.hdr.sgml : 20230822 20230822164055 ACCESSION NUMBER: 0000902664-23-004545 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230818 FILED AS OF DATE: 20230822 DATE AS OF CHANGE: 20230822 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: JANA PARTNERS LLC CENTRAL INDEX KEY: 0001159159 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-41194 FILM NUMBER: 231194013 BUSINESS ADDRESS: STREET 1: 767 FIFTH AVENUE STREET 2: 8TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10153 BUSINESS PHONE: (212) 455-0900 MAIL ADDRESS: STREET 1: 767 FIFTH AVENUE STREET 2: 8TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10153 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: MERCURY SYSTEMS INC CENTRAL INDEX KEY: 0001049521 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRONIC COMPONENTS & ACCESSORIES [3670] IRS NUMBER: 042741391 STATE OF INCORPORATION: MA FISCAL YEAR END: 0630 BUSINESS ADDRESS: STREET 1: 50 MINUTEMAN ROAD CITY: ANDOVER STATE: MA ZIP: 01810 BUSINESS PHONE: 9782561300 MAIL ADDRESS: STREET 1: 50 MINUTEMAN ROAD CITY: ANDOVER STATE: MA ZIP: 01810 FORMER COMPANY: FORMER CONFORMED NAME: MERCURY COMPUTER SYSTEMS INC DATE OF NAME CHANGE: 19971112 4 1 ownership.xml X0508 4 2023-08-18 0 0001049521 MERCURY SYSTEMS INC MRCY 0001159159 JANA PARTNERS LLC 767 FIFTH AVENUE 8TH FLOOR NEW YORK NY 10153 1 0 0 1 See Remarks 0 Common Stock 2023-08-18 4 P 0 50000 38.05 A 4711386 I See footnote JANA Partners LLC ("JANA") is a private money management firm which beneficially owns the securities reported herein through various accounts under its management and control. Barry Rosenstein is the Managing Partner of JANA. JANA and Barry Rosenstein disclaim any beneficial ownership of any of the Issuer's securities reported herein except to the extent of their pecuniary interest therein. The Reporting Person may be deemed to be a director by deputization for purposes of Section 16 under the Securities Exchange Act of 1934 by virtue of the fact that Mr. Ostfeld currently serves on the board of directors of the Issuer /s/ JANA Partners LLC, by Jennifer Fanjiang, Partner, Chief Legal Officer and Chief Compliance Officer 2023-08-22