MGE ENERGY INC

PublicCIK: 1161728
MGEENASDAQ
Location

MADISON, WI

13F Filings

Institutional Holders

MGE ENERGY INCMGEE— Latest position per institution from SEC 13F filings

15

Institutional holders

33.69M

Total shares held

2.41B

Estimated value

1.68M

Avg. position size

1

BLACKROCK, INC.

CIK 2012383

Shares

6.09M

Value

496.90M

Filed

Jun 30, 2026

2

BLACKROCK FINANCE, INC.

CIK 1364742

Shares

5.79M

Value

432.94M

Filed

Jun 30, 2024

3

VANGUARD GROUP INC

CIK 102909

Shares

4.55M

Value

356.90M

Filed

Dec 31, 2025

4

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

CIK 1081019

Shares

3.52M

Value

43.15K

Filed

Jun 30, 2026

5

VANGUARD PORTFOLIO MANAGEMENT LLC

CIK 2100121

Shares

2.79M

Value

227.81M

Filed

Jun 30, 2026

6

STATE STREET CORP

CIK 93751

Shares

2.05M

Value

167.14M

Filed

Jun 30, 2026

7

VANGUARD CAPITAL MANAGEMENT LLC

CIK 2100119

Shares

1.70M

Value

138.84M

Filed

Jun 30, 2026

8

GEODE CAPITAL MANAGEMENT, LLC

CIK 1214717

Shares

1.01M

Value

81.97M

Filed

Jun 30, 2026

9

ZIMMER PARTNERS, LP

CIK 1565854

Shares

1M

Value

81.54M

Filed

Jun 30, 2026

10

DIMENSIONAL FUND ADVISORS LP

CIK 354204

Shares

700.97K

Value

57.15M

Filed

Jun 30, 2026

11

MORGAN STANLEY

CIK 895421

Shares

545.47K

Value

44.48M

Filed

Jun 30, 2026

12

WESTWOOD HOLDINGS GROUP INC

CIK 1165002

Shares

530.62K

Value

43.27M

Filed

Jun 30, 2026

13

GABELLI FUNDS LLC

CIK 1081407

Shares

513.70K

Value

41.89M

Filed

Jun 30, 2026

14

TWO SIGMA INVESTMENTS, LP

CIK 1179392

Shares

486.96K

Value

39.71M

Filed

Jun 30, 2026

15

FIRST TRUST ADVISORS LP

CIK 1125816

Shares

447.44K

Value

36.48M

Filed

Jun 30, 2026

16

SIXTH STREET PARTNERS MANAGEMENT COMPANY, L.P.

CIK 1812095

Shares

434.56K

Value

35.43M

Filed

Jun 30, 2026

17

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

CIK 884546

Shares

434.56K

Value

35.43M

Filed

Jun 30, 2026

18

NORTHERN TRUST CORP

CIK 73124

Shares

394.58K

Value

32.17M

Filed

Jun 30, 2026

19

DEPRINCE RACE & ZOLLO INC

CIK 1008894

Shares

350.90K

Value

28.61M

Filed

Jun 30, 2026

20

NUVEEN, LLC

CIK 1871926

Shares

337.69K

Value

27.54M

Filed

Jun 30, 2026

Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.