Who owns Maximus (MMS)
Which tracked institutional funds hold MMS, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MMS company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on MMS is one-sided between 2026-Q1 and 2026-Q2: 12 added or opened and 191 trimmed or exited — on balance reducing.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
MMS’s largest tracked holder by dollar value, VANGUARD GROUP INC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes MMS more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in MMS divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 375 tracked filers holding MMS, 180 increased or opened the position and 225 reduced or closed it; over the same quarter, open-market insider Form 4s were net purchases.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in MMS between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 1
- BALYASNY ASSET MANAGEMENT L.P.$4M
Full exits 186
- VANGUARD PORTFOLIO MANAGEMENT LLC$223M
- VANGUARD CAPITAL MANAGEMENT LLC$156M
- DIMENSIONAL FUND ADVISORS LP$135M
- FULLER & THALER ASSET MANAGEMENT, INC.$133M
- MACKENZIE FINANCIAL CORP$101M
- GEODE CAPITAL MANAGEMENT, LLC$96M
Largest adds
- BlackRock, Inc.$135M
- CITADEL ADVISORS LLC$28M
- Invesco Ltd.$21M
- MARSHALL WACE, LLP$11M
- TWO SIGMA INVESTMENTS, LP$6M
- Bridgewater Associates, LP$5M
Largest trims
- FMR LLC$226M
- STATE STREET CORP$20M
- NORGES BANK$9M
- WELLINGTON MANAGEMENT GROUP LLP$5M
- D. E. Shaw & Co., Inc.$5M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 7,443,930 | $400M | 10.6% | 2026-Q2 |
| FMR LLC trimmed | 5,544,432 | $298M | 7.9% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 3,471,636 | $223M | 5.9% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 2,437,636 | $156M | 4.1% | 2026-Q1 |
| STATE STREET CORP added | 2,566,033 | $138M | 3.6% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 2,107,278 | $135M | 3.6% | 2026-Q1 |
| FULLER & THALER ASSET MANAGEMENT, INC. added | 2,081,466 | $133M | 3.5% | 2026-Q1 |
| MACKENZIE FINANCIAL CORP trimmed | 1,578,075 | $101M | 2.7% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,497,679 | $96M | 2.5% | 2026-Q1 |
| Van Berkom & Associates Inc. added | 1,172,190 | $75M | 2.0% | 2026-Q1 |
| Allianz Asset Management GmbH added | 894,929 | $57M | 1.5% | 2026-Q1 |
| REINHART PARTNERS, LLC. added | 855,069 | $55M | 1.4% | 2026-Q1 |
| River Road Asset Management, LLC added | 826,224 | $53M | 1.4% | 2026-Q1 |
| Sio Capital Management, LLC added | 768,825 | $49M | 1.3% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 716,920 | $46M | 1.2% | 2026-Q1 |
| Stephens Investment Management Group LLC trimmed | 716,389 | $46M | 1.2% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 693,028 | $44M | 1.2% | 2026-Q1 |
| Boston Partners trimmed | 669,053 | $43M | 1.1% | 2026-Q1 |
| UBS Group AG added | 615,193 | $39M | 1.0% | 2026-Q1 |
| FEDERATED HERMES, INC. added | 609,892 | $39M | 1.0% | 2026-Q1 |
| NORGES BANK added | 695,683 | $37M | 1.0% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 563,486 | $36M | 1.0% | 2026-Q1 |
| Bank of New York Mellon Corp added | 518,704 | $33M | 0.9% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 617,787 | $33M | 0.9% | 2026-Q2 |
| JUPITER ASSET MANAGEMENT LTD new | 484,421 | $31M | 0.8% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 480,582 | $31M | 0.8% | 2026-Q1 |
| Invesco Ltd. added | 532,872 | $29M | 0.8% | 2026-Q2 |
| Walleye Capital LLC added | 428,618 | $27M | 0.7% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 398,119 | $26M | 0.7% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 380,206 | $24M | 0.6% | 2026-Q1 |
| ROYCE & ASSOCIATES LP added | 372,542 | $24M | 0.6% | 2026-Q1 |
| MORGAN STANLEY trimmed | 354,363 | $23M | 0.6% | 2026-Q1 |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ added | 350,269 | $22M | 0.6% | 2026-Q1 |
| Nuveen, LLC trimmed | 339,087 | $22M | 0.6% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 395,510 | $21M | 0.6% | 2026-Q2 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC added | 324,170 | $21M | 0.5% | 2026-Q1 |
| LORD, ABBETT & CO. LLC added | 309,716 | $20M | 0.5% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 295,285 | $19M | 0.5% | 2026-Q1 |
| LSV ASSET MANAGEMENT added | 284,700 | $18M | 0.5% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 270,713 | $17M | 0.5% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO | 270,566 | $17M | 0.5% | 2026-Q1 |
| MARSHALL WACE, LLP added | 273,805 | $15M | 0.4% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 226,399 | $15M | 0.4% | 2026-Q1 |
| RICE HALL JAMES & ASSOCIATES, LLC added | 222,924 | $14M | 0.4% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 221,421 | $14M | 0.4% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 256,453 | $14M | 0.4% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 187,081 | $12M | 0.3% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 215,834 | $12M | 0.3% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 176,313 | $11M | 0.3% | 2026-Q1 |
| ExodusPoint Capital Management, LP added | 206,784 | $11M | 0.3% | 2026-Q2 |
| BARCLAYS PLC trimmed | 170,165 | $11M | 0.3% | 2026-Q1 |
| Allspring Global Investments Holdings, LLC trimmed | 154,017 | $10M | 0.3% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 111,546 | $10M | 0.3% | 2026-Q1 |
| Clark Capital Management Group, Inc. trimmed | 144,231 | $9M | 0.2% | 2026-Q1 |
| Public Sector Pension Investment Board added | 141,299 | $9M | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. trimmed | 137,128 | $9M | 0.2% | 2026-Q1 |
| CITIGROUP INC added | 136,554 | $9M | 0.2% | 2026-Q1 |
| Cambria Investment Management, L.P. added | 133,486 | $9M | 0.2% | 2026-Q1 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 132,414 | $8M | 0.2% | 2026-Q1 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC added | 132,368 | $8M | 0.2% | 2026-Q1 |
| Cerity Partners LLC trimmed | 128,478 | $8M | 0.2% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 117,948 | $8M | 0.2% | 2026-Q1 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. added | 115,113 | $7M | 0.2% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 137,026 | $7M | 0.2% | 2026-Q2 |
| Swiss National Bank trimmed | 107,707 | $7M | 0.2% | 2026-Q1 |
| California Public Employees Retirement System added | 107,475 | $7M | 0.2% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 104,588 | $7M | 0.2% | 2026-Q1 |
| Caisse de depot et placement du Quebec new | 104,088 | $7M | 0.2% | 2026-Q1 |
| Retirement Systems of Alabama trimmed | 100,774 | $6M | 0.2% | 2026-Q1 |
| SEI INVESTMENTS CO added | 93,826 | $6M | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 93,698 | $6M | 0.2% | 2026-Q1 |
| Candriam S.C.A. added | 92,725 | $6M | 0.2% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 104,761 | $6M | 0.1% | 2026-Q2 |
| Legal & General Group Plc trimmed | 83,563 | $5M | 0.1% | 2026-Q1 |
| Bridgewater Associates, LP added | 98,469 | $5M | 0.1% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 82,203 | $5M | 0.1% | 2026-Q1 |
| NORDEA INVESTMENT MANAGEMENT AB added | 80,300 | $5M | 0.1% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 78,979 | $5M | 0.1% | 2026-Q1 |
| Quantinno Capital Management LP added | 76,181 | $5M | 0.1% | 2026-Q1 |
| Ruffer LLP trimmed | 73,047 | $5M | 0.1% | 2026-Q1 |
| SG Americas Securities, LLC added | 72,764 | $5M | 0.1% | 2026-Q1 |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM trimmed | 69,308 | $4M | 0.1% | 2026-Q1 |
| Y-Intercept (Hong Kong) Ltd added | 69,073 | $4M | 0.1% | 2026-Q1 |
| FIFTH THIRD BANCORP added | 67,281 | $4M | 0.1% | 2026-Q1 |
| Counterpoint Mutual Funds LLC new | 65,452 | $4M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 6,227,259 | $538M | 14.2% | 2025-Q4 stale |
| DEPRINCE RACE & ZOLLO INC added | 243,695 | $22M | 0.6% | 2025-Q3 stale |
| Divisadero Street Capital Management, LP added | 183,872 | $17M | 0.4% | 2025-Q3 stale |
| Assenagon Asset Management S.A. added | 181,565 | $16M | 0.4% | 2025-Q4 stale |
| Concentric Capital Strategies, LP new | 145,014 | $13M | 0.3% | 2025-Q4 stale |
| Woodline Partners LP trimmed | 121,432 | $11M | 0.3% | 2025-Q3 stale |
| CAMBIAR INVESTORS LLC trimmed | 103,736 | $7M | 0.2% | 2025-Q1 stale |
| Corebridge Financial, Inc. trimmed | 90,109 | $6M | 0.2% | 2025-Q1 stale |
| West Coast Financial LLC trimmed | 89,320 | $6M | 0.2% | 2025-Q1 stale |
| TWO SIGMA ADVISERS, LP added | 63,000 | $6M | 0.2% | 2025-Q3 stale |
| Holocene Advisors, LP added | 59,698 | $5M | 0.1% | 2025-Q3 stale |
| COMERICA BANK added | 61,284 | $5M | 0.1% | 2025-Q4 stale |
| Pier Capital, LLC added | 75,355 | $5M | 0.1% | 2025-Q2 stale |
| Jefferies Financial Group Inc. added | 60,361 | $5M | 0.1% | 2025-Q4 stale |
| NATIXIS new | 53,000 | $5M | 0.1% | 2025-Q4 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.