CMS Energy Corporation
US ˙ NYSE ˙ US1258961002

SecurityCMS / CMS Energy Corporation
InstitutionMagellan Asset Management Ltd
ManagerHamish Douglass
Latest Disclosed Ownership2,019,954 shares
Latest Disclosed Value $ 156,708,031
Magellan Asset Management Ltd reports 698.73% increase in ownership of CMS / CMS Energy Corporation

On May 11, 2026 - Magellan Asset Management Ltd filed a 13F-HR form disclosing ownership of 2,019,954 shares of CMS Energy Corporation (US:CMS) valued at $156,708,031 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 252,895 shares of CMS Energy Corporation. This represents a change in shares of 698.73% during the quarter. The current value of the position is $141,841,170 USD.

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)
2026-05-11 2026-03-31 13F CMS ENERGY COM 125896100 2,019,954 1,767,059 698.73 156,708 786.16 2.0331
2026-02-10 2025-12-31 13F CMS ENERGY COM 125896100 252,895 13,393 5.59 17,685 0.79 0.2150
2025-11-10 2025-09-30 13F CMS ENERGY COM 125896100 239,502 38,949 19.42 17,546 26.28 0.2078
2025-08-07 2025-06-30 13F CMS ENERGY COM 125896100 200,553 -847 -0.42 13,894 -8.15 0.1588
2025-05-12 2025-03-31 13F CMS ENERGY COM 125896100 201,400 -1,211,124 -85.74 15,127 -83.93 0.1839
2025-02-12 2024-12-31 13F CMS ENERGY COM 125896100 1,412,524 -92,482 -6.14 94,145 -11.43 1.0343
2024-11-14 2024-09-30 13F CMS ENERGY COM 125896100 1,505,006 -43,174 -2.79 106,299 15.34 1.0583
2024-08-13 2024-06-30 13F CMS ENERGY COM 125896100 1,548,180 -641,330 -29.29 92,163 -30.24 0.8774
2024-05-14 2024-03-31 13F CMS ENERGY COM 125896100 2,189,510 -595,772 -21.39 132,115 -18.32 1.2619
2024-02-13 2023-12-31 13F CMS ENERGY COM 125896100 2,785,282 -378,407 -11.96 161,741 -3.74 1.6114
2023-11-13 2023-09-30 13F CMS ENERGY COM 125896100 3,163,689 -80,278 -2.47 168,024 -11.84 1.7857
2023-08-11 2023-06-30 13F CMS ENERGY COM 125896100 3,243,967 -182,748 -5.33 190,583 -9.39 1.6960
2023-05-12 2023-03-31 13F CMS ENERGY COM 125896100 3,426,715 -132,259 -3.72 210,332 -6.68 1.7961
2023-02-13 2022-12-31 13F CMS ENERGY COM 125896100 3,558,974 351,601 10.96 225,390 20.66 1.9283
2022-11-10 2022-09-30 13F CMS ENERGY COM 125896100 3,207,373 -136,845 -4.09 186,797 -17.25 1.3056
2022-08-12 2022-06-30 13F CMS ENERGY COM 125896100 3,344,218 926,658 38.33 225,735 33.50 1.2321
2022-05-13 2022-03-31 13F CMS ENERGY COM 125896100 2,417,560 2,130,886 743.31 169,084 806.71 0.6547
2022-02-11 2021-12-31 13F CMS ENERGY COM 125896100 286,674 11,109 4.03 18,648 13.29 0.0475
2021-11-04 2021-09-30 13F CMS ENERGY COM 125896100 275,565 48,134 21.16 16,460 22.50 0.0329
2021-08-12 2021-06-30 13F CMS ENERGY COM 125896100 227,431 -8,762 -3.71 13,437 -7.07 0.0266
2021-05-13 2021-03-31 13F CMS ENERGY COM 125896100 236,193 -32,959 -12.25 14,460 -11.94 0.0302
2021-02-11 2020-12-31 13F CMS ENERGY COM 125896100 269,152 7,986 3.06 16,421 2.39 0.0380
2020-11-12 2020-09-30 13F CMS ENERGY COM 125896100 261,166 14,573 5.91 16,038 11.33 0.0409
2020-08-14 2020-06-30 13F CMS ENERGY COM 125896100 246,593 26,666 12.12 14,406 11.49 0.0432
2020-05-14 2020-03-31 13F CMS ENERGY COM 125896100 219,927 -2,199 -0.99 12,921 -7.43 0.0445
2020-02-13 2019-12-31 13F CMS ENERGY COM 125896100 222,126 0 0.00 13,958 -1.74 0.0368
2019-11-13 2019-09-30 13F CMS ENERGY COM 125896100 222,126 -6,596 -2.88 14,205 7.25 0.0408
2019-08-13 2019-06-30 13F CMS ENERGY COM 125896100 228,722 6,678 3.01 13,245 7.40 0.0381
2019-05-14 2019-03-31 13F CMS ENERGY COM 125896100 222,044 25,876 13.19 12,332 26.61 0.0391
2019-03-11 2018-12-31 13F/A-1 CMS ENERGY COM 125896100 196,168 -12,617 -6.04 9,740 -4.79 0.0358
2019-02-14 2018-12-31 13F CMS ENERGY COM 125896100 196,168 -12,617 9,740
2018-11-14 2018-09-30 13F CMS ENERGY COM 125896100 208,785 -4,448 -2.09 10,230 1.47 0.0335
2018-08-13 2018-06-30 13F CMS ENERGY COM 125896100 213,233 -4,567 -2.10 10,082 2.21 0.0354
2018-05-15 2018-03-31 13F CMS ENERGY COM 125896100 217,800 27,518 14.46 9,864 9.60 0.0364
2018-02-14 2017-12-31 13F CMS ENERGY COM 125896100 190,282 1,937 1.03 9,000 3.16 0.0299
2017-11-13 2017-09-30 13F CMS ENERGY COM 125896100 188,345 974 0.52 8,724 0.67 0.0329
2017-08-11 2017-06-30 13F CMS ENERGY COM 125896100 187,371 13,823 7.96 8,666 8.32 0.0364
2017-05-16 2017-03-31 13F CMS ENERGY COM 125896100 173,548 -41,880 -19.44 8,000 -10.77 0.0353
2017-02-15 2016-12-31 13F CMS ENERGY COM 125896100 215,428 950 0.44 8,966 -0.49 0.0421
2016-11-14 2016-09-30 13F CMS ENERGY COM 125896100 214,478 -721 -0.34 9,010 -8.70 0.0452
2016-08-19 2016-06-30 13F CMS ENERGY COM 125896100 215,199 -12,415 -5.45 9,869 2.16 0.0554
2016-05-13 2016-03-31 13F CMS ENERGY COM 125896100 227,614 -6,337 -2.71 9,660 14.44 0.0521
2016-02-11 2015-12-31 13F CMS ENERGY COM 125896100 233,951 -6,888 -2.86 8,441 -0.76 0.0473
2015-11-10 2015-09-30 13F CMS ENERGY COM 125896100 240,839 1,464 0.61 8,506 11.60 0.0534
2015-08-13 2015-06-30 13F CMS ENERGY COM 125896100 239,375 34,589 16.89 7,622 6.62 0.0478
2015-05-12 2015-03-31 13F CMS ENERGY COM 125896100 204,786 -26,958 -11.63 7,149 -11.23 0.0460
2015-02-12 2014-12-31 13F CMS ENERGY COM 125896100 231,744 -2,693,791 -92.08 8,053 -7.19 0.0574
2014-11-13 2014-09-30 13F CMS ENERGY COM 125896100 2,925,535 2,651,228 966.52 8,677 1.54 0.0683
2014-08-12 2014-06-30 13F CMS ENERGY COM 125896100 274,307 -113,274 -29.23 8,545 -24.70 0.0644
2014-05-14 2014-03-31 13F CMS ENERGY COM 125896100 387,581 -838 -0.22 11,348 9.14 0.0892
2014-02-11 2013-12-31 13F CMS ENERGY COM 125896100 388,419 13,259 3.53 10,398 5.31 0.0858
2013-11-13 2013-09-30 13F CMS ENERGY COM 125896100 375,160 -17,584 -4.48 9,874 -7.47 0.1062
2013-08-21 2013-06-30 13F CMS ENERGY COM 125896100 392,744 392,744 10,671 0.1190
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.