Who Owns MERCURY SYS INC (MRCY)? -- Institutional Holders (2026-06-30)

433 institutions reported holding $8.13B of MERCURY SYS INC (MRCY) in SEC 13F filings for 2026-06-30. Largest institutional holders: BlackRock, Inc. ($1.15B), VANGUARD GROUP INC ($723.6M), JANA Partners Management, LP ($484.3M), STATE STREET CORP ($418.0M), Invesco Ltd. ($326.6M). Source: SEC Form 13F.

RankInstitutionValueSharesChange
1BlackRock, Inc.$1.15B9.4MAdded
2VANGUARD GROUP INC$723.6M5.9MAdded
3JANA Partners Management, LP$484.3M4.0MTrimmed
4STATE STREET CORP$418.0M3.4MTrimmed
5Invesco Ltd.$326.6M2.7MAdded
6FMR LLC$225.3M1.8MAdded
7T. Rowe Price Investment Management, Inc.$195.2M1.6MAdded
8GOLDMAN SACHS GROUP INC$192.8M1.6MAdded
9Conestoga Capital Advisors, LLC$181.9M1.5MTrimmed
10GEODE CAPITAL MANAGEMENT, LLC$178.6M1.5MTrimmed
11FIRST TRUST ADVISORS LP$158.9M1.3MAdded
12PRICE T ROWE ASSOCIATES INC /MD/$157.3M1.3MAdded
13DIMENSIONAL FUND ADVISORS LP$141.4M1.2MTrimmed
14SEGALL BRYANT & HAMILL, LLC$125.9M1.0MAdded
15Fisher Asset Management, LLC$115.5M944,069Trimmed
16FRANKLIN RESOURCES INC$103.6M846,732Added
17NEUBERGER BERMAN GROUP LLC$102.1M841,556Trimmed
18MORGAN STANLEY$99.3M811,565Added
19WELLINGTON MANAGEMENT GROUP LLP$94.9M775,502Added
20VAN ECK ASSOCIATES CORP$93.3M762,994Trimmed
21RAYMOND JAMES FINANCIAL INC$91.6M748,808Trimmed
22MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.$87.6M715,977Trimmed
23LOOMIS SAYLES & CO L P$83.3M681,142Added
24AMERICAN CENTURY COMPANIES INC$81.3M664,960Added
25LORD, ABBETT & CO. LLC$80.9M661,714Added

Source: SEC Form 13F filings · as of 2026-06-30