CMS Energy Corporation
US ˙ NYSE ˙ US1258961002

SecurityCMS / CMS Energy Corporation
InstitutionBoothbay Fund Management, Llc
Latest Disclosed Ownership4,307 shares
Latest Disclosed Value $ 334,137
Boothbay Fund Management, Llc reports 91.63% decrease in ownership of CMS / CMS Energy Corporation

On May 15, 2026 - Boothbay Fund Management, Llc filed a 13F-HR form disclosing ownership of 4,307 shares of CMS Energy Corporation (US:CMS) valued at $334,137 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 51,483 shares of CMS Energy Corporation. This represents a change in shares of -91.63% during the quarter. The current value of the position is $310,276 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.

Upgrade to unlock premium data and export to Excel .

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 4,307 -47,176 -91.63 334 -90.72 0.0043
2026-02-17 2025-12-31 13F CMS ENERGY COM 125896100 51,483 10,382 25.26 3,600 19.56 0.0537
2025-11-14 2025-09-30 13F CMS ENERGY COM 125896100 41,101 19,760 92.59 3,011 103.72 0.0438
2025-08-14 2025-06-30 13F CMS ENERGY COM 125896100 21,341 12,721 147.58 1,479 128.44 0.0287
2025-05-15 2025-03-31 13F CMS ENERGY COM 125896100 8,620 4,778 124.36 647 152.73 0.0171
2025-02-14 2024-12-31 13F CMS ENERGY COM 125896100 3,842 3,842 256 0.0063
2024-11-14 2024-09-30 13F CMS ENERGY COM 125896100 0 -6,657 -100.00 0 -100.00
2024-08-14 2024-06-30 13F CMS ENERGY COM 125896100 6,657 1,448 27.80 396 26.11 0.0094
2024-05-15 2024-03-31 13F CMS ENERGY COM 125896100 5,209 5,209 314 0.0061
2023-02-14 2022-12-31 13F CMS ENERGY COM 125896100 0 -7,150 -100.00 0 -100.00
2022-11-14 2022-09-30 13F CMS ENERGY COM 125896100 7,150 7,150 416 0.0104
2022-08-15 2022-06-30 13F CMS ENERGY COM 125896100 0 -3,515 -100.00 0 -100.00
2022-05-16 2022-03-31 13F CMS ENERGY COM 125896100 3,515 3,515 246 0.0057
2022-02-14 2021-12-31 13F CMS ENERGY COM 125896100 0 -4,592 -100.00 0 -100.00
2021-11-15 2021-09-30 13F CMS ENERGY COM 125896100 4,592 -315 -6.42 274 -5.52 0.0076
2021-08-17 2021-06-30 13F/A-1 CMS ENERGY COM 125896100 4,907 4,907 290 0.0093
2021-08-16 2021-06-30 13F CMS ENERGY COM 125896100 4,907 4,907 290 0.0091
2020-11-16 2020-09-30 13F CMS ENERGY COM 125896100 0 -9,241 -100.00 0 -100.00
2020-08-14 2020-06-30 13F CMS ENERGY COM 125896100 9,241 9,241 540 0.0369
2018-05-14 2018-03-31 13F CMS ENERGY COM 125896100 0 -5,787 -100.00 0 -100.00
2018-02-14 2017-12-31 13F CMS ENERGY COM 125896100 5,787 775 15.46 274 18.10 0.0401
2017-11-14 2017-09-30 13F CMS ENERGY COM 125896100 5,012 5,012 -13.39 232 -15.33 0.0386
2017-08-14 2017-06-30 13F CMS Energy COM 125896100 0 -8,974 -100.00 0 -100.00
2017-05-15 2017-03-31 13F CMS Energy COM 125896100 8,974 1,160 14.85 401 23.38 0.0747
2017-07-18 2016-12-31 13F/A-2 CMS Energy COM 125896100 7,814 7,814 325 0.0740
2017-02-16 2016-12-31 13F/A-1 CMS ENERGY COM 125896100 7,814 0 325 0.0802
2017-02-15 2016-12-31 13F CMS ENERGY COM 125896100 7,814 325 0.1068
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.