Maximus, Inc.
Maximus, Inc. (MMS) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MMS · as of Sep 30, 2025
Ownership Breakdown
386
Institutional Holders
▲ 6 vs Q2
$5.06B
Total Inst. Value
▲ $1.06B vs Q2
52.54M
Shares Outstanding
freeFloat 98.56%
55.40M
13F Shares Held
▼ 1.61M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MMS largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
FMR LLC services-business services, nec | 8.45M | 14.91% | 14.91% | $772.26B | Nov 13, 2025 | ▲ 173 |
BLACKROCK, INC. services-business services, nec | 7.95M | 14.03% | 14.03% | $726.44B | Nov 12, 2025 | ▲ 672.3K |
VANGUARD GROUP INC services-business services, nec | 6.40M | 11.29% | 11.29% | $584.92B | Nov 7, 2025 | ▼ 71.6K |
STATE STREET CORP services-business services, nec | 2.54M | 4.48% | 4.48% | $232.09B | Nov 14, 2025 | ▼ 55.7K |
MACKENZIE FINANCIAL CORP services-business services, nec | 2.25M | 3.97% | 3.97% | $205.50B | Nov 13, 2025 | ▼ 253.3K |
DIMENSIONAL FUND ADVISORS LP services-business services, nec | 1.87M | 3.30% | 3.30% | $170.81B | Nov 12, 2025 | ▲ 37.0K |
FULLER & THALER ASSET MANAGEMENT, INC. services-business services, nec | 1.73M | 3.06% | 3.06% | $158.52B | Nov 13, 2025 | ▼ 3.9K |
GEODE CAPITAL MANAGEMENT, LLC services-business services, nec | 1.48M | 2.61% | 2.61% | $134.97B | Nov 12, 2025 | ▲ 10.7K |
VAN BERKOM & ASSOCIATES INC. services-business services, nec | 1.16M | 2.05% | 2.05% | $106.09B | Nov 4, 2025 | ▼ 104.5K |
BOSTON PARTNERS services-business services, nec | 966.1K | 1.70% | 1.70% | $88.24B | Nov 13, 2025 | ▲ 308.9K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
29
Increased
+3.13M shares0
New Positions
first time holders20
Decreased
−2.24M shares0
Sold Out
fully exitedNet shares change (top 50)
+887.0K
+3.13M / −2.24M
Net new holders
+9
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MMS insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
11
Buy transactions
5
Sell transactions
2.20
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Madsen Jan director | Mar 17, 2026 | Sale | 742 | $72.25 | $53.6K | 20.8K | Form 4 ↗ |
Madsen Jan director | Mar 10, 2026 | Award | 3,215 | — | — | 21.5K | Form 4 ↗ |
HALEY JOHN J director | Mar 10, 2026 | Award | 7,009 | — | — | 47.1K | Form 4 ↗ |
Altman Anne K. director | Mar 10, 2026 | Award | 3,062 | — | — | 35.1K | Form 4 ↗ |
Warren Michael J. director | Mar 10, 2026 | Award | 2,246 | — | — | 17.8K | Form 4 ↗ |
RAJAN GAYATHRI director | Mar 10, 2026 | Award | 2,246 | — | — | 16.7K | Form 4 ↗ |
MONTONI RICHARD A director | Feb 27, 2026 | Gift | 7,000 | — | — | 45.5K | Form 4 ↗ |
MONTONI RICHARD A director | Feb 24, 2026 | Gift | 3,000 | — | — | 52.5K | Form 4 ↗ |
HALEY JOHN J director | Feb 18, 2026 | Gift | 32,764 | — | — | 32.8K | Form 4 ↗ |
HALEY JOHN J director | Feb 18, 2026 | Gift | 32,764 | — | — | 0 | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Maximus, Inc. (MMS) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 1.44%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Maximus, Inc. is FMR LLC, holding approximately 8.45 million shares — equal to 14.91% of outstanding shares — as of September 30, 2025.
A total of 386 institutional investors currently hold MMS stock, with a combined institutional value of approximately $5.06 billion as of the most recent 13F filing period.
Frequently asked questions
MMS ownershipMaximus, Inc. (MMS) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is FMR LLC with a 14.91% stake. Company insiders hold 1.44%. Data sourced from SEC Form 13F as of September 30, 2025.