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MMS · Maximus, Inc.

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Market Cap
$3.13B
Shares
52.36M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 354
Total Value: $3,003,739,157
Total Shares: 55,915,194
Showing 1–100 of 356 holdings by value · page 1 of 4

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 354 13F filers · Δ vs Mar 31, 2026
Top Holder
13.3%
Sep 2023 → Jun 2026 · range 13.3% – 15.5%
−1.4 pts
Top 5
38.7%
Sep 2023 → Jun 2026 · range 38.7% – 51.7%
−4.7 pts
Top 10
55.5%
Sep 2023 → Jun 2026 · range 55.5% – 65.7%
−3.1 pts
HHI
452
Sep 2023 → Jun 2026 · range 452 – 671
Broadly held−105

Quarterly Activity

vs Mar 31, 2026
New
56
Increased
140
Decreased
115
Sold Out
81
Unchanged
43
Holder count: -25
Institutional value: -15.5%
Shares held: +0.8%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 356
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1032220 CUSIP 577933104 13F (30d) 282 filings 274 filers Visit website Investor relations