CMS Energy Corporation
US ˙ NYSE ˙ US1258961002

SecurityCMS / CMS Energy Corporation
InstitutionZimmer Partners, LP
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Zimmer Partners, LP closes position in CMS / CMS Energy Corporation

On May 15, 2026 - Zimmer Partners, LP filed a 13F-HR form disclosing ownership of 0 shares of CMS Energy Corporation (US:CMS) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 742,500 shares of CMS Energy Corporation. The current value of the position is $0 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 COM 125896100 0 -100.00 0
2026-02-17 2025-12-31 13F CMS ENERGY COM 125896100 742,500 48,100 6.93 51,923 2.07 1.3681
2025-11-14 2025-09-30 13F CMS ENERGY COM 125896100 694,400 392,262 129.83 50,872 143.03 1.0986
2025-08-14 2025-06-30 13F CMS ENERGY COM 125896100 302,138 302,138 20,932 0.4553
2025-05-15 2025-03-31 13F CMS ENERGY COM 125896100 0 -1,337,928 -100.00 0 -100.00
2025-02-14 2024-12-31 13F CMS ENERGY COM 125896100 1,337,928 1,337,928 89,173 1.5365
2024-11-14 2024-09-30 13F CMS ENERGY COM 125896100 0 -210,904 -100.00 0 -100.00
2024-08-14 2024-06-30 13F CMS ENERGY COM 125896100 210,904 -649,620 -75.49 12,555 -75.82 0.2315
2024-05-15 2024-03-31 13F CMS ENERGY COM 125896100 860,524 703,644 448.52 51,924 469.97 1.1096
2024-02-14 2023-12-31 13F CMS ENERGY COM 125896100 156,880 -1,966,465 -92.61 9,110 -91.92 0.3337
2023-11-14 2023-09-30 13F CMS ENERGY COM 125896100 2,123,345 2,052,595 2,901.19 112,771 2,613.43 2.9102
2023-08-14 2023-06-30 13F CMS ENERGY COM 125896100 70,750 -368,871 -83.91 4,157 -84.60 0.0979
2023-05-15 2023-03-31 13F CMS ENERGY COM 125896100 439,621 -74,304 -14.46 26,984 -17.09 0.5538
2023-02-14 2022-12-31 13F CMS ENERGY COM 125896100 513,925 -3,478,969 -87.13 32,547 -86.00 0.6546
2022-11-14 2022-09-30 13F CMS ENERGY COM 125896100 3,992,894 2,325,684 139.50 232,546 106.64 5.0465
2022-08-15 2022-06-30 13F CMS ENERGY COM 125896100 1,667,210 -1,023,290 -38.03 112,537 -40.20 2.3435
2022-05-16 2022-03-31 13F CMS ENERGY COM 125896100 2,690,500 -3,500 -0.13 188,174 7.38 2.6958
2022-02-14 2021-12-31 13F CMS ENERGY COM 125896100 2,694,000 -88,400 -3.18 175,245 5.45 2.6157
2021-11-15 2021-09-30 13F CMS ENERGY COM 125896100 2,782,400 332,100 13.55 166,193 14.80 2.6153
2021-08-16 2021-06-30 13F CMS ENERGY COM 125896100 2,450,300 1,846,800 306.01 144,764 291.83 1.9476
2021-05-17 2021-03-31 13F CMS ENERGY COM 125896100 603,500 -469,390 -43.75 36,946 -43.56 0.5014
2021-02-16 2020-12-31 13F CMS ENERGY COM 125896100 1,072,890 841,700 364.07 65,457 361.06 0.9609
2020-11-16 2020-09-30 13F CMS ENERGY COM 125896100 231,190 231,190 14,197 0.2196
2019-02-14 2018-12-31 13F CMS ENERGY COM 125896100 0 -7,890 -100.00 0 -100.00
2018-11-14 2018-09-30 13F CMS ENERGY COM 125896100 7,890 -1,033,510 -99.24 387 -99.21 0.0051
2018-08-14 2018-06-30 13F CMS ENERGY COM 125896100 1,041,400 -980,100 -48.48 49,237 -46.22 0.6751
2018-05-15 2018-03-31 13F CMS ENERGY COM 125896100 2,021,500 656,500 48.10 91,554 41.80 1.6535
2018-02-14 2017-12-31 13F CMS ENERGY COM 125896100 1,365,000 887,500 185.86 64,565 191.91 1.5728
2017-11-14 2017-09-30 13F CMS ENERGY COM 125896100 477,500 187,500 64.66 22,118 64.90 0.4917
2017-08-14 2017-06-30 13F CMS ENERGY COM 125896100 290,000 25,000 9.43 13,413 13.13 0.3184
2017-05-15 2017-03-31 13F CMS ENERGY COM 125896100 265,000 265,000 -44.21 11,856 -5.17 0.2923
2014-02-14 2013-12-31 13F CMS ENERGY COM 125896100 0 -475,000 -100.00 0 -100.00
2013-11-14 2013-09-30 13F CMS ENERGY COM 125896100 475,000 475,000 12,502 2.4193
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.