Angela S. Rieger - 31 Dec 2025 Form 4 Insider Report for MGE ENERGY INC (MGEE)

Role
Director
Signature
/s/ Angela S. Rieger
Issuer symbol
MGEE
Transactions as of
31 Dec 2025
Net transactions value
$0
Form type
4
Filing time
05 Jan 2026, 16:21:18 UTC
Previous filing
03 Apr 2025
Next filing
03 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Rieger Angela S. Director 133 S BLAIR STREET, PO BOX 1231, MADISON /s/ Angela S. Rieger 05 Jan 2026 0001981719

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction MGEE Common Stock Options Exercise +918 918 31 Dec 2025 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction MGEE Restricted Stock Units Options Exercise $0 -918 -100% $0.000000 0 31 Dec 2025 common stock 918 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 On March 3, 2025, the reporting personwas granted 918 retricted stock units (RSU's) that vested on December 31, 2025.
F2 Represents RSU's which are converted to common stock on a one-to-one basis when vested.