CMS Energy Corporation
MX ˙ BMV ˙ US1258961002
SecurityMX:CMS1 / CMS Energy Corporation
InstitutionCitigroup Inc
Latest Disclosed Ownership386,728 shares
Latest Disclosed Value $ 30,002,358
Citigroup Inc ownership in CMS1 / CMS Energy Corporation

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 386,728 shares of CMS Energy Corporation (MX:CMS1) valued at $30,002,358 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 531,113 shares of CMS Energy Corporation. This represents a change in shares of -27.19% during the quarter.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (CMS1) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:CMS1 / CMS Energy Corporation Historical Put/Call Ratio
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 386,728 -144,385 -27.19 30,002 -19.22 0.0064
2026-02-13 2025-12-31 13F CMS ENERGY COM 125896100 531,113 -344,889 -39.37 37,141 -42.13 0.0164
2025-11-10 2025-09-30 13F CMS ENERGY COM 125896100 876,002 18,339 2.14 64,176 8.01 0.0286
2025-08-11 2025-06-30 13F CMS ENERGY COM 125896100 857,663 -140,623 -14.09 59,419 -20.76 0.0292
2025-05-12 2025-03-31 13F CMS ENERGY COM 125896100 998,286 393,332 65.02 74,981 85.96 0.0383
2025-02-12 2024-12-31 13F CMS ENERGY COM 125896100 604,954 -60,223 -9.05 40,320 -14.18 0.0239
2024-11-12 2024-09-30 13F CMS ENERGY COM 125896100 665,177 123,896 22.89 46,981 45.80 0.0272
2024-08-12 2024-06-30 13F CMS ENERGY COM 125896100 541,281 4,509 0.84 32,222 -0.51 0.0206
2024-05-10 2024-03-31 13F CMS ENERGY COM 125896100 536,772 -160,592 -23.03 32,389 -20.02 0.0213
2024-02-09 2023-12-31 13F CMS ENERGY COM 125896100 697,364 275,309 65.23 40,496 80.66 0.0285
2023-12-06 2023-09-30 13F/A-1 CMS ENERGY COM 125896100 422,055 -94,282 -18.26 22,415 -26.11 0.0168
2023-11-09 2023-09-30 13F CMS ENERGY COM 125896100 422,055 -94,282 22,415 0.0067
2023-08-10 2023-06-30 13F CMS ENERGY COM 125896100 516,337 -1,506,834 -74.48 30,335 -75.57 0.0199
2023-05-11 2023-03-31 13F CMS ENERGY COM 125896100 2,023,171 -547,173 -21.29 124,182 -23.71 0.0871
2023-02-09 2022-12-31 13F CMS ENERGY COM 125896100 2,570,344 2,043,489 387.87 162,780 430.50 0.1296
2022-11-10 2022-09-30 13F CMS ENERGY COM 125896100 526,855 -16,852 -3.10 30,684 -16.39 0.0220
2022-08-10 2022-06-30 13F CMS ENERGY COM 125896100 543,707 28,919 5.62 36,701 1.94 0.0273
2022-05-12 2022-03-31 13F CMS ENERGY COM 125896100 514,788 -27,992 -5.16 36,004 1.97 0.0219
2022-02-10 2021-12-31 13F CMS ENERGY COM 125896100 542,780 -84,619 -13.49 35,308 -5.78 0.0189
2021-11-10 2021-09-30 13F CMS ENERGY COM 125896100 627,399 38,907 6.61 37,474 7.79 0.0221
2021-08-10 2021-06-30 13F CMS ENERGY COM 125896100 588,492 187,324 46.69 34,766 41.56 0.0209
2021-05-13 2021-03-31 13F CMS ENERGY COM 125896100 401,168 1,626 0.41 24,559 0.75 0.0159
2021-02-11 2020-12-31 13F CMS ENERGY COM 125896100 399,542 -19,680 -4.69 24,376 -5.31 0.0144
2020-11-12 2020-09-30 13F CMS ENERGY COM 125896100 419,222 70,875 20.35 25,744 26.51 0.0168
2020-08-12 2020-06-30 13F CMS ENERGY COM 125896100 348,347 -7,753 -2.18 20,350 -2.72 0.0159
2020-05-12 2020-03-31 13F CMS ENERGY COM 125896100 356,100 -59,578 -14.33 20,920 -19.91 0.0189
2020-02-12 2019-12-31 13F CMS ENERGY COM 125896100 415,678 46,262 12.52 26,120 10.57 0.0189
2019-11-08 2019-09-30 13F CMS ENERGY COM 125896100 369,416 -82,977 -18.34 23,624 -9.83 0.0187
2019-08-12 2019-06-30 13F CMS ENERGY COM 125896100 452,393 68,874 17.96 26,198 23.00 0.0212
2019-05-13 2019-03-31 13F CMS ENERGY COM 125896100 383,519 108,751 39.58 21,300 56.14 0.0205
2019-02-12 2018-12-31 13F CMS ENERGY COM 125896100 274,768 154,519 128.50 13,642 131.49 0.0138
2018-11-13 2018-09-30 13F CMS ENERGY COM 125896100 120,249 -350 -0.29 5,893 3.37 0.0053
2018-08-10 2018-06-30 13F CMS ENERGY COM 125896100 120,599 11,781 10.83 5,701 15.69 0.0052
2018-05-11 2018-03-31 13F CMS ENERGY COM 125896100 108,818 -5,948 -5.18 4,928 -9.23 0.0041
2018-02-12 2017-12-31 13F CMS ENERGY COM 125896100 114,766 107,553 1,491.10 5,429 1,525.45 0.0044
2017-11-13 2017-09-30 13F CMS ENERGY COM 125896100 7,213 -23,687 -76.66 334 -76.63 0.0003
2017-08-11 2017-06-30 13F CMS ENERGY COM 125896100 30,900 -184,651 -85.66 1,429 -85.18 0.0013
2017-05-12 2017-03-31 13F CMS ENERGY COM 125896100 215,551 208,062 2,778.23 9,644 2,991.03 0.0086
2017-02-10 2016-12-31 13F CMS ENERGY COM 125896100 7,489 -80,574 -91.50 312 -91.57 0.0003
2016-11-10 2016-09-30 13F CMS ENERGY COM 125896100 88,063 -72,209 -45.05 3,699 -49.67 0.0035
2016-08-12 2016-06-30 13F CMS ENERGY COM 125896100 160,272 153,750 2,357.41 7,350 2,553.43 0.0075
2016-05-13 2016-03-31 13F CMS ENERGY COM 125896100 6,522 -25,560 -79.67 277 -76.08 0.0003
2016-02-12 2015-12-31 13F CMS ENERGY COM 125896100 32,082 1,742 5.74 1,158 8.12 0.0012
2015-11-13 2015-09-30 13F CMS ENERGY COM 125896100 30,340 -14,042 -31.64 1,071 -24.26 0.0010
2015-08-13 2015-06-30 13F CMS ENERGY COM 125896100 44,382 36,311 449.89 1,414 403.20 0.0013
2015-05-14 2015-03-31 13F CMS ENERGY COM 125896100 8,071 -19,162 -70.36 281 -70.33 0.0003
2015-02-17 2014-12-31 13F CMS ENERGY COM 125896100 27,233 23,830 700.26 947 837.62 0.0008
2014-11-14 2014-09-30 13F CMS ENERGY COM 125896100 3,403 -4,537 -57.14 101 -59.27 0.0001
2014-08-14 2014-06-30 13F CMS ENERGY COM 125896100 7,940 -25,685 -76.39 248 -74.85 0.0002
2014-05-15 2014-03-31 13F CMS ENERGY COM 125896100 33,625 9,153 37.40 986 50.53 0.0010
2014-02-14 2013-12-31 13F CMS ENERGY COM 125896100 24,472 -126,912 -83.83 655 -83.56 0.0006
2013-11-14 2013-09-30 13F CMS ENERGY COM 125896100 151,384 -1,498 -0.98 3,985 -4.05 0.0037
2013-08-14 2013-06-30 13F CMS ENERGY COM 125896100 152,882 152,882 4,153 0.0041
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-11 2026-03-31 13F CMS ENERGY COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-13 2025-12-31 13F CMS ENERGY COM Call 10,600 0.00 741 -4.51 n/a n/a n/a
2025-11-10 2025-09-30 13F CMS ENERGY COM Call 10,600 777 n/a n/a n/a
2020-02-12 2019-12-31 13F CMS ENERGY COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-11-08 2019-09-30 13F CMS ENERGY COM Call 170,800 -36.74 10,923 -30.14 n/a n/a n/a
2019-08-12 2019-06-30 13F CMS ENERGY COM Call 270,000 15,636 n/a n/a n/a
2018-08-10 2018-06-30 13F CMS ENERGY COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-05-11 2018-03-31 13F CMS ENERGY COM Call 45,000 2,038 n/a n/a n/a
2016-11-10 2016-09-30 13F CMS ENERGY COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-08-12 2016-06-30 13F CMS ENERGY COM Call 126,400 -15.39 5,797 -8.58 n/a n/a n/a
2016-05-13 2016-03-31 13F CMS ENERGY COM Call 149,400 -21.12 6,341 -7.21 n/a n/a n/a
2016-02-12 2015-12-31 13F CMS ENERGY COM Call 189,400 1,171.14 6,834 1,199.24 n/a n/a n/a
2015-11-13 2015-09-30 13F CMS ENERGY COM Call 14,900 526 n/a n/a n/a
2015-08-13 2015-06-30 13F CMS ENERGY COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-05-14 2015-03-31 13F CMS ENERGY COM Call 40,000 -89.04 1,396 -88.99 n/a n/a n/a
2015-02-17 2014-12-31 13F CMS ENERGY COM Call 365,000 25.86 12,684 47.47 n/a n/a n/a
2014-11-14 2014-09-30 13F CMS ENERGY COM Call 290,000 107.14 8,601 97.23 n/a n/a n/a
2014-08-14 2014-06-30 13F CMS ENERGY COM Call 140,000 11.11 4,361 18.22 n/a n/a n/a
2014-05-15 2014-03-31 13F CMS ENERGY COM Call 126,000 152.00 3,689 175.50 n/a n/a n/a
2014-02-14 2013-12-31 13F CMS ENERGY COM Call 50,000 1,339 n/a n/a n/a
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.