CMS Energy Corporation
US ˙ NYSE ˙ US1258961002

SecurityCMS / CMS Energy Corporation
InstitutionTortoise Capital Advisors, L.l.c.
Latest Disclosed Ownership223,947 shares
Latest Disclosed Value $ 17,373,808
Tortoise Capital Advisors, L.l.c. reports 3.31% increase in ownership of CMS / CMS Energy Corporation

On May 15, 2026 - Tortoise Capital Advisors, L.l.c. filed a 13F-HR form disclosing ownership of 223,947 shares of CMS Energy Corporation (US:CMS) valued at $17,373,808 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 216,772 shares of CMS Energy Corporation. This represents a change in shares of 3.31% during the quarter. The current value of the position is $15,725,558 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)
2026-05-15 2026-03-31 13F Cms Energy Corp Com cs 125896100 223,947 7,175 3.31 17,374 14.61 0.0999
2026-02-17 2025-12-31 13F Cms Energy Corp Com COM 125896100 216,772 -3,673 -1.67 15,159 -6.14 0.1929
2025-11-13 2025-09-30 13F Cms Energy Corp Com COM 125896100 220,445 -70,673 -24.28 16,150 -19.93 0.2083
2025-08-14 2025-06-30 13F Cms Energy Corp Com cs 125896100 291,118 -166,691 -36.41 20,169 -41.35 0.2631
2025-05-14 2025-03-31 13F Cms Energy Corp Com COM 125896100 457,809 98,071 27.26 34,386 43.42 0.4158
2025-02-13 2024-12-31 13F Cms Energy Corp Com cs 125896100 359,738 29,808 9.03 23,977 2.89 0.3070
2024-11-13 2024-09-30 13F Cms Energy Corp Com com 125896100 329,930 79,417 31.70 23,303 56.25 0.3003
2024-08-05 2024-06-30 13F Cms Energy Corp Com cs 125896100 250,513 0 0.00 14,913 -1.34 0.1973
2024-05-10 2024-03-31 13F Cms Energy Corp Com cs 125896100 250,513 250,513 15,116 0.2111
2020-08-14 2020-06-30 13F Cms Energy Corp Com cs 125896100 0 -802,852 -100.00 0 -100.00
2020-05-14 2020-03-31 13F/A-1 Cms Energy Corp Com cs 125896100 802,852 801,000 43,250.54 47,168 40,562.07 0.8699
2020-05-14 2020-03-31 13F Cms Energy Corp Com cs 125896100 802,852 801,000 47,168 528,220.8081
2020-02-21 2019-12-31 13F/A-2 Cms Energy COM 125896100 1,852 -3,398 -64.72 116 -65.48 0.0007
2020-02-19 2019-12-31 13F/A-1 Cms Energy COM 125896100 1,852 0 116 713.6978
2020-02-14 2019-12-31 13F Cms Energy COM 125896100 1,852 -3,398 116 466.7553
2019-11-14 2019-09-30 13F Cms Energy Corp Com COM 125896100 5,250 1,928 58.04 336 75.00 0.0021
2019-08-14 2019-06-30 13F Cms Energy COM 125896100 3,322 0 0.00 192 3.78 0.0013
2019-05-13 2019-03-31 13F Cms Energy COM 125896100 3,322 0 0.00 185 12.12 0.0011
2019-02-13 2018-12-31 13F Cms Energy COM 125896100 3,322 0 0.00 165 1.23 0.0012
2018-12-13 2018-09-30 13F/A-1 Cms Energy COM 125896100 3,322 0 0.00 163 3.82 0.0010
2018-11-08 2018-09-30 13F Cms Energy COM 125896100 3,322 0 163
2018-08-07 2018-06-30 13F Cms Energy Corp Com COM 125896100 3,322 0 0.00 157 4.67 0.0010
2018-05-17 2018-03-31 13F/A-1 Cms Energy Corp Com COM 125896100 3,322 184 5.86 150 1.35 0.0011
2018-05-15 2018-03-31 13F Cms Energy Corp Com COM 125896100 3,322 150
2018-02-14 2017-12-31 13F Cms Energy COM 125896100 3,138 3,089 6,304.08 148 7,300.00 0.0010
2017-11-17 2017-09-30 13F/A-1 CMS ENERGY COM 125896100 49 0 0.00 2 0.00 0.0000
2017-11-13 2017-09-30 13F CMS ENERGY COM 125896100 49 0 2
2017-11-13 2017-06-30 13F/A-1 CMS ENERGY COM 125896100 49 0 0.00 2 0.00 0.0000
2017-08-01 2017-06-30 13F CMS ENERGY COM 125896100 49 0 2
2017-05-15 2017-03-31 13F CMS ENERGY COM 125896100 49 0 0.00 2 0.00 0.0000
2017-02-14 2016-12-31 13F CMS ENERGY COM 125896100 49 0 0.00 2 0.00 0.0000
2016-11-14 2016-09-30 13F CMS ENERGY COM 125896100 49 11 28.95 2 0.00 0.0000
2016-08-11 2016-06-30 13F CMS ENERGY COM 125896100 38 0 0.00 2 0.00 0.0000
2016-05-13 2016-03-31 13F CMS ENERGY COM 125896100 38 -11 -22.45 2 0.00 0.0000
2016-02-12 2015-12-31 13F CMS ENERGY COM 125896100 49 0 0.00 2 0.00 0.0000
2015-11-16 2015-09-30 13F CMS ENERGY COM 125896100 49 0 0.00 2 0.00 0.0000
2015-08-13 2015-06-30 13F CMS ENERGY COM 125896100 49 0 0.00 2 0.00 0.0000
2015-05-08 2015-03-31 13F CMS ENERGY COM 125896100 49 -21 -30.00 2 0.00 0.0000
2015-02-10 2014-12-31 13F CMS ENERGY COM 125896100 70 6 9.38 2 0.00 0.0000
2014-11-13 2014-09-30 13F CMS ENERGY COM 125896100 64 0 0.00 2 0.00 0.0000
2014-08-13 2014-06-30 13F CMS ENERGY COM 125896100 64 64 220.00 2 100.00 0.0000
2013-11-12 2013-09-30 13F CMS ENERGY COM 125896100 0 -20 -100.00 0 -100.00
2013-08-13 2013-06-30 13F CMS ENERGY COM 125896100 20 20 1 0.0000
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.