CMS ENERGY CORP

Ticker: CMS CUSIP: 125896100 Class: COM

MATTERN CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001803227)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 120,708 Value ($000) $8,441 Avg Close $72.50 Range $68.82 - $75.54

Q3 2025

Shares 118,582 Value ($000) $8,687 Avg Close $71.07 Range $67.62 - $74.06

Q2 2025

Shares 118,363 Value ($000) $8,200 Avg Close $69.97 Range $66.64 - $74.76

Q1 2025

Shares 116,996 Value ($000) $8,788 Avg Close $68.05 Range $62.07 - $73.85

Q4 2024

Shares 120,921 Value ($000) $8,059 Avg Close $66.51 Range $62.68 - $69.72

Q3 2024

Shares 123,472 Value ($000) $8,721 Avg Close $63.02 Range $55.90 - $68.39

Q2 2024

Shares 123,349 Value ($000) $7,343 Avg Close $57.61 Range $53.65 - $60.67

Q1 2024

Shares 123,466 Value ($000) $7,450 Avg Close $54.70 Range $52.14 - $57.68

Q4 2023

Shares 113,770 Value ($000) $6,607 Avg Close $52.28 Range $46.41 - $56.68

Q3 2023

Shares 110,058 Value ($000) $5,845 Avg Close $53.74 Range $48.93 - $58.86

Q2 2023

Shares 100,362 Value ($000) $5,896 Avg Close $55.52 Range $51.90 - $57.72

Q1 2023

Shares 96,631 Value ($000) $5,931 Avg Close $56.09 Range $52.20 - $59.70

Q4 2022

Shares 92,954 Value ($000) $5,887 Avg Close $53.55 Range $47.22 - $59.39

Q3 2022

Shares 87,564 Value ($000) $5,100 Avg Close $60.46 Range $52.29 - $64.14

Q2 2022

Shares 87,860 Value ($000) $5,931 Avg Close $61.65 Range $54.04 - $65.58

Q1 2022

Shares 90,193 Value ($000) $6,308 Avg Close $57.49 Range $54.01 - $62.78

Q4 2021

Shares 87,955 Value ($000) $5,721 Avg Close $54.05 Range $51.79 - $57.95

Q3 2021

Shares 82,658 Value ($000) $4,937 Avg Close $54.55 Range $51.03 - $57.50

Q2 2021

Shares 78,196 Value ($000) $4,620 Avg Close $53.98 Range $50.41 - $56.92

Q1 2021

Shares 72,495 Value ($000) $4,438 Avg Close $49.54 Range $45.98 - $53.78

Q4 2020

Shares 66,566 Value ($000) $4,061 Avg Close $53.48 Range $49.20 - $58.32

Q3 2020

Shares 66,141 Value ($000) $4,062 Avg Close $52.06 Range $48.83 - $54.86

Q2 2020

Shares 63,235 Value ($000) $3,694 Avg Close $48.86 Range $44.33 - $53.86

Q1 2020

Shares 55,360 Value ($000) $3,252 Avg Close $53.66 Range $38.69 - $58.14

Q4 2019

Shares 54,125 Value ($000) $3,401 Avg Close $51.97 Range $49.57 - $54.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	120,708	$8,441	$72.50	$68.82 - $75.54
Q3 2025	118,582	$8,687	$71.07	$67.62 - $74.06
Q2 2025	118,363	$8,200	$69.97	$66.64 - $74.76
Q1 2025	116,996	$8,788	$68.05	$62.07 - $73.85
Q4 2024	120,921	$8,059	$66.51	$62.68 - $69.72
Q3 2024	123,472	$8,721	$63.02	$55.90 - $68.39
Q2 2024	123,349	$7,343	$57.61	$53.65 - $60.67
Q1 2024	123,466	$7,450	$54.70	$52.14 - $57.68
Q4 2023	113,770	$6,607	$52.28	$46.41 - $56.68
Q3 2023	110,058	$5,845	$53.74	$48.93 - $58.86
Q2 2023	100,362	$5,896	$55.52	$51.90 - $57.72
Q1 2023	96,631	$5,931	$56.09	$52.20 - $59.70
Q4 2022	92,954	$5,887	$53.55	$47.22 - $59.39
Q3 2022	87,564	$5,100	$60.46	$52.29 - $64.14
Q2 2022	87,860	$5,931	$61.65	$54.04 - $65.58
Q1 2022	90,193	$6,308	$57.49	$54.01 - $62.78
Q4 2021	87,955	$5,721	$54.05	$51.79 - $57.95
Q3 2021	82,658	$4,937	$54.55	$51.03 - $57.50
Q2 2021	78,196	$4,620	$53.98	$50.41 - $56.92
Q1 2021	72,495	$4,438	$49.54	$45.98 - $53.78
Q4 2020	66,566	$4,061	$53.48	$49.20 - $58.32
Q3 2020	66,141	$4,062	$52.06	$48.83 - $54.86
Q2 2020	63,235	$3,694	$48.86	$44.33 - $53.86
Q1 2020	55,360	$3,252	$53.66	$38.69 - $58.14
Q4 2019	54,125	$3,401	$51.97	$49.57 - $54.00