Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

CMS ENERGY CORP

CIK 0000811156CMSCMSACMSCCMSD· quarter ending 2026-06-30

Shares outstanding

313,577,136

as of 2026-07-13 · 10-Q cover page, filed 2026-07-28

Held by 13F filers

756,013,927

selection includes debt or preferreds — no % of shares outstanding

Holders

+1 vs 2026-03-31 · 8 new, 7 exited

Value

$753.8M

shares +11.7% vs prior quarter

13F holdings exceed the share count. This is normal for heavily shorted stocks: shares lent to short sellers are reported by the lender and again by whoever bought them. Related filers occasionally report the same position twice as well.

Share classes (cover page of the 10-Q filed 2026-07-28, as of 2026-07-13)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	CMS · NYSE	313,577,136	315,919,991	100.7%	822	125896100

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
125896100	COM	822	315,919,991	313,577,136	100.7%	$24.2B	4 call / 1 put	13DG	holders →
125896BX7	NOTE 3.375% 5/0not common	59	6,378,737 $749.6M principal	—	—	$753.8M	—	NPORT	holders →
125896837	PUBLICnot common	4	63,719	—	—	$1.1M	—	prefix	holders →
125896845	PUBLICnot common	2	904	—	—	$20K	—	NPORT	holders →
125896860	PUBLICnot common	1	384	—	—	$8K	—	NPORT	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings. 21 further CUSIPs map to this company (mostly bonds) but no 13F filer held them this quarter.

Top holders (59 of 59 · 125896BX7)

change vs 2026-03-31

#	Filer	Shares / principal	% of class	Value	Change
1	LAZARD ASSET MANAGEMENT LLC	92,504,000	—	$1.0M	+12,047,000 (+15.0%)
2	ADVENT CAPITAL MANAGEMENT /DE/	82,240,000	—	$92.3M	+8,009,000 (+10.8%)
3	Calamos Advisors LLC	76,823,000	—	$85.9M	+14,401,000 (+23.1%)
4	Aequim Alternative Investments LP	70,000,000	—	$78.2M	—
5	Universal- Beteiligungs- und Servicegesellschaft mbH	61,974,000	—	$69.6M	+2,913,000 (+4.9%)
6	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	55,100,000	—	$61.5M	NEW
7	VICTORY CAPITAL MANAGEMENT INC	44,021,000	—	$49.1M	-747,500 (-1.7%)
8	TENOR CAPITAL MANAGEMENT Co., L.P.	27,000,000	—	$30.3M	—
9	Lombard Odier Asset Management (Europe) Ltd	22,909,000	—	$25.7M	+8,970,000 (+64.4%)
10	STATE STREET CORP	21,436,000	—	$24.1M	+4,400,000 (+25.8%)
11	BNP PARIBAS ASSET MANAGEMENT Holding S.A.	21,000,000	—	$23.6M	+10,000,000 (+90.9%)
12	Wellesley Asset Management	20,500,000	—	$20.7M	+7,110,000 (+53.1%)
13	SHENKMAN CAPITAL MANAGEMENT INC	17,254,000	—	$19.5M	-2,257,000 (-11.6%)
14	BlackRock, Inc.	16,450,000	—	$18.3M	-34,075,000 (-67.4%)
15	AMERIPRISE FINANCIAL INC	13,029,000	—	$14.6M	—
16	Weiss Asset Management LP	9,609,000	—	$10.7M	NEW
17	BANK OF AMERICA CORP /DE/	9,162,000	—	$10.2M	-3,184,000 (-25.8%)
18	FRANKLIN RESOURCES INC	8,996,000	—	$10.0M	—
19	DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main	8,600,000	—	$9.6M	—
20	FMR LLC	8,242,000	—	$9.2M	-60,000 (-0.7%)
21	MORGAN STANLEY	7,550,000	—	$8.4M	+183,000 (+2.5%)
22	RWC Asset Management LLP	7,147,000	—	$8.0M	+527,000 (+8.0%)
23	Thrivent Financial for Lutherans	6,510,000	—	$7.3M	-585,000 (-8.2%)
24	GABELLI FUNDS LLC	5,100,000	—	$5.7M	—
25	CITIGROUP INC	5,003,000	—	$5.6M	NEW
26	ZAZOVE ASSOCIATES LLC	4,545,000	—	$5.1M	+335,000 (+8.0%)
27	Amundi	4,100,000	—	$4.6M	—
28	STATE OF WISCONSIN INVESTMENT BOARD	4,000,000	—	$4.5M	+1,000,000 (+33.3%)
29	Invesco Ltd.	3,900,000	—	$4.4M	—
30	Man Group plc	3,320,000	—	$3.7M	+350,000 (+11.8%)
31	EFG International AG	3,000,000	—	$3.4M	—
32	SSI INVESTMENT MANAGEMENT LLC	2,941,000	—	$3.3M	+170,000 (+6.1%)
33	JPMORGAN CHASE & CO	2,385,000	—	$2.7M	-6,059,000 (-71.8%)
34	Bank of New York Mellon Corp	2,116,000	—	$2.4M	-100,000 (-4.5%)
35	DEUTSCHE BANK AG\	1,664,000	—	$1.9M	—
36	LBP AM SA	1,600,000	—	$1.8M	NEW
37	BARCLAYS PLC	1,136,000	—	$1.3M	NEW
38	AEGON USA Investment Management, LLC	905,000	—	$1.0M	—
39	Calamos Wealth Management LLC	814,000	—	$910K	+30,000 (+3.8%)
40	WELLINGTON MANAGEMENT GROUP LLP	763,000	—	$856K	—
41	Union Bancaire Privee, UBP SA	213,000	—	$243K	—
42	&PARTNERS	170,000	—	$190K	+1,000 (+0.6%)
43	SG Americas Securities, LLC	38,890	—	$4.4M	—
44	WELLS FARGO & COMPANY/MN	37,000	—	$41K	-405,000 (-91.6%)
45	Steward Partners Investment Advisory, LLC	32,000	—	$36K	—
46	LPL Financial LLC	30,000	—	$34K	-3,000 (-9.1%)
47	BLAIR WILLIAM & CO/IL	29,000	—	$32K	—
48	Focus Partners Wealth	25,000	—	$28K	NEW
49	Cetera Investment Advisers	21,000	—	$23K	—
50	COMMONWEALTH EQUITY SERVICES, LLC	17,000	—	$19K	NEW
51	UBS Group AG	12,000	—	$13K	-204,000 (-94.4%)
52	CHOREO, LLC	11,000	—	$12K	—
53	NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	9,000	—	$10K	—
54	LANARK FINANCIAL, INC.	7,000	—	$8K	NEW
55	Alken Asset Management Ltd	4,300	—	$4.8M	+250 (+6.2%)
56	FIFTH THIRD BANCORP	4,000	—	$4K	—
57	BARTLETT & CO. WEALTH MANAGEMENT LLC	3,000	—	$3K	—
58	LAFFER TENGLER INVESTMENTS, INC.	2,737	—	$3.1M	+212 (+8.4%)
59	Erste Asset Management GmbH	0	—	$0	—

Exited since 2026-03-31 (7 filers; largest 7 shown)

Polar Asset Management Partners Inc.	−10,000,000
TPG GP A, LLC	−5,000,000
AGF MANAGEMENT LTD	−700,000
JANE STREET GROUP, LLC	−500,000
CSS LLC/IL	−105,000
MML INVESTORS SERVICES, LLC	−22,000
FORESIGHT CAPITAL MANAGEMENT ADVISORS, INC.	−16,000

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
JPMORGAN CHASE & CO	SCHEDULE 13G/A	2026-05-12	2026-03-31	15,469,213	5%
JPMORGAN CHASE & CO.	SCHEDULE 13G/A	2026-05-04	2026-03-31	15,469,213	5%
Vanguard Capital Management	SCHEDULE 13G	2026-04-29	2026-03-31	23,113,756	7.5%
Vanguard Portfolio Management	SCHEDULE 13G	2026-04-29	2026-03-31	18,830,275	6.11%
The Vanguard Group	SCHEDULE 13G/A	2026-03-26	2026-03-13	0	0%
T. Rowe Price Associates, Inc.	SCHEDULE 13G/A	2025-08-14	2025-06-30	6,970,835	2.3%
BlackRock, Inc.	SCHEDULE 13G/A	2025-04-17	2025-03-31	26,393,497	8.8%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.