A maker of rugged electronics that process radar, electronic warfare, and other signals on military aircraft and ships, Mercury Systems builds components, modules, and full subsystems for defense primes like Lockheed Martin and RTX. It was founded in 1981 in Massachusetts as Mercury Computer Systems by engineers including Jay Bertelli. The name nods to the fleet-footed Roman messenger god Mercury—fitting for a firm centered on speed.
Select a row to see that insider’s individual transactions. † Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last year: -2.29M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.