Maximus, Inc.
MX ˙ BMV ˙ US5779331041
SecurityMX:MMS / Maximus, Inc.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership23,701 shares
Latest Disclosed Value $ 1,519,116
Janus Henderson Group Plc reports 95.42% decrease in ownership of MMS / Maximus, Inc.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 23,701 shares of Maximus, Inc. (MX:MMS) valued at $1,519,116 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 517,549 shares of Maximus, Inc.. This represents a change in shares of -95.42% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-18 2026-03-31 13F/A-1 MAXIMUS COM 577933104 23,701 -493,848 -95.42 1,519 -96.60 0.0007
2026-05-15 2026-03-31 13F MAXIMUS COM 577933104 23,701 -493,848 1,519 0.0003
2026-02-17 2025-12-31 13F MAXIMUS COM 577933104 517,549 -6,049 -1.16 44,676 -6.62 0.0200
2025-11-14 2025-09-30 13F MAXIMUS COM 577933104 523,598 -6,539 -1.23 47,842 28.55 0.0218
2025-08-14 2025-06-30 13F MAXIMUS COM 577933104 530,137 -415,501 -43.94 37,217 -42.30 0.0182
2025-05-15 2025-03-31 13F MAXIMUS COM 577933104 945,638 -240,512 -20.28 64,501 -27.16 0.0354
2025-02-14 2024-12-31 13F MAXIMUS COM 577933104 1,186,150 22,711 1.95 88,546 -18.30 0.0450
2024-11-14 2024-09-30 13F MAXIMUS COM 577933104 1,163,439 1,000 0.09 108,385 8.80 0.0555
2024-08-14 2024-06-30 13F MAXIMUS COM 577933104 1,162,439 -92,097 -7.34 99,619 -5.35 0.0533
2024-05-15 2024-03-31 13F MAXIMUS COM 577933104 1,254,536 25,825 2.10 105,255 2.15 0.0574
2024-02-14 2023-12-31 13F MAXIMUS COM 577933104 1,228,711 -86,722 -6.59 103,042 4.89 0.0615
2023-11-14 2023-09-30 13F MAXIMUS COM 577933104 1,315,433 -1,180 -0.09 98,236 -11.71 0.0643
2023-08-14 2023-06-30 13F MAXIMUS COM 577933104 1,316,613 -1,577 -0.12 111,268 7.25 0.0692
2023-05-15 2023-03-31 13F MAXIMUS COM 577933104 1,318,190 -183,155 -12.20 103,742 -5.77 0.0684
2023-02-14 2022-12-31 13F MAXIMUS COM 577933104 1,501,345 94,501 6.72 110,094 35.22 0.0786
2023-01-13 2022-09-30 13F/A-1 MAXIMUS COM 577933104 1,406,844 -3,971 -0.28 81,415 -7.68 0.0610
2022-11-14 2022-09-30 13F MAXIMUS COM 577933104 1,406,844 -3,971 81,415 0.0609
2022-08-15 2022-06-30 13F MAXIMUS COM 577933104 1,410,815 -13,052 -0.92 88,190 -17.36 0.0608
2022-05-16 2022-03-31 13F MAXIMUS COM 577933104 1,423,867 147,077 11.52 106,720 4.91 0.0515
2022-02-14 2021-12-31 13F MAXIMUS COM 577933104 1,276,790 28,412 2.28 101,722 -2.06 0.0424
2021-11-16 2021-09-30 13F MAXIMUS COM 577933104 1,248,378 5,912 0.48 103,865 -4.97 0.0454
2021-08-16 2021-06-30 13F MAXIMUS COM 577933104 1,242,466 154,672 14.22 109,300 12.85 0.0468
2021-05-17 2021-03-31 13F MAXIMUS COM 577933104 1,087,794 150,934 16.11 96,857 41.25 0.0442
2021-02-16 2020-12-31 13F MAXIMUS COM 577933104 936,860 -3,327 -0.35 68,569 6.61 0.0319
2020-11-16 2020-09-30 13F MAXIMUS COM 577933104 940,187 -5,304 -0.56 64,318 -3.44 0.0335
2020-08-14 2020-06-30 13F MAXIMUS COM 577933104 945,491 1,089 0.12 66,610 21.19 0.0374
2020-05-14 2020-03-31 13F MAXIMUS COM 577933104 944,402 103,879 12.36 54,964 -12.10 0.0378
2020-02-18 2019-12-31 13F MAXIMUS COM 577933104 840,523 1,388 0.17 62,527 -3.56 0.0320
2019-11-14 2019-09-30 13F MAXIMUS COM 577933104 839,135 -86,626 -9.36 64,832 -3.46 0.0351
2019-07-31 2019-06-30 13F MAXIMUS COM 577933104 925,761 -91,233 -8.97 67,155 -6.97 0.0366
2019-04-30 2019-03-31 13F MAXIMUS COM 577933104 1,016,994 -2,671 -0.26 72,186 8.76 0.0400
2019-02-06 2018-12-31 13F MAXIMUS COM 577933104 1,019,665 -5,835 -0.57 66,370 -0.52 0.0423
2018-11-09 2018-09-30 13F MAXIMUS COM 577933104 1,025,500 -2,695 -0.26 66,719 4.48 0.0357
2018-08-10 2018-06-30 13F MAXIMUS COM 577933104 1,028,195 -707,296 -40.75 63,861 -44.87 0.0364
2018-05-14 2018-03-31 13F MAXIMUS COM 577933104 1,735,491 -339,209 -16.35 115,827 -22.01 0.0683
2018-03-12 2017-12-31 13F/A-1 MAXIMUS COM 577933104 2,074,700 -89,600 -4.14 148,507 6.38 0.0914
2018-02-09 2017-12-31 13F MAXIMUS COM 577933104 2,074,700 -89,600 148,507
2017-11-14 2017-09-30 13F MAXIMUS COM 577933104 2,164,300 -47,338 -2.14 139,597 0.78 0.0895
2017-08-17 2017-06-30 13F/A-1 MAXIMUS COM 577933104 2,211,638 1,941,521 718.77 138,515 724.44 0.0944
2017-08-14 2017-06-30 13F MAXIMUS COM 577933104 2,211,638 1,941,521 138,515
2017-05-03 2017-03-31 13F MAXIMUS COM 577933104 270,117 65,472 31.99 16,801 47.16 0.1180
2017-01-30 2016-12-31 13F MAXIMUS COM 577933104 204,645 -31,237 -13.24 11,417 -14.42 0.0842
2016-10-24 2016-09-30 13F MAXIMUS COM 577933104 235,882 -8,380 -3.43 13,341 -1.36 0.0983
2016-07-29 2016-06-30 13F MAXIMUS COM 577933104 244,262 -32,092 -11.61 13,525 -7.21 0.1125
2016-05-12 2016-03-31 13F MAXIMUS COM 577933104 276,354 -28,200 -9.26 14,576 -14.91 0.1182
2016-02-03 2015-12-31 13F MAXIMUS COM 577933104 304,554 304,554 17,131 0.1375
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.