WAHLUND TODD R (Chief Financial Officer) exercised options at OTTER TAIL CORP

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 1 exercise

WAHLUND TODD R

Filed: 4/9/2024ACC: 0001466593-24-000083

InsiderWAHLUND TODD RCIK 2002077

→

IssuerOTTER TAIL CORPCIK 1466593

Officer· Chief Financial Officer

Since Feb 2026

-223.00

Net shares

Net seller

$19.4K

Total sold

Open market trades

0B · 0S

Total transactions

550.00 acquired · 773.00 disposed

Non-Derivative Transactions2

Common Stock

Direct

M · Option Exercise

+550.00

Price / share

$87.02

Trade value

$47.86K

% of position

7.0%

4/8/2024

7.86K→8.40K

Common Stock

Direct

F · Tax Withholding

−223.00

Price / share

$87.02

Trade value

$19.41K

% of position

2.7%

4/8/2024

8.40K→8.18K

Total

Net shares

+327.00

Net value

$28.46K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	4/8/2024	M · Option Exercise	+550.00	$87.02	$47.86K	7.0%	7.86K	8.40K
Common Stock Direct	4/8/2024	F · Tax Withholding	−223.00	$87.02	$19.41K	2.7%	8.40K	8.18K
Total			+327.00		$28.46K

Derivative Transactions1

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

550.00 shares

−550.00

Strike price

Held after

0.00

Exercisable

—

4/8/2024

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Restricted Stock Units Direct	Common Stock550.00 shares	4/8/2024	M · Option Exercise	−550.00		—	0.00

Non-Derivative Holdings (Post-Transaction)2

Common Stock

Indirect

Shares owned2.92K

Common Stock

Indirect

Shares owned5.00

Total

2.93K indirect2.93K

Security Title	Shares Owned	Ownership Type
Common Stock	2.92K	Indirect
Common Stock	5.00	Indirect
Total	2.93K	2.93K indirect

Derivative Holdings (Post-Transaction)4

Restricted Stock Units

Direct

Underlying security

Common Stock

Underlying shares

1.20K

Shares owned

1.20K

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Common Stock

Underlying shares

600.00

Shares owned

600.00

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Common Stock

Underlying shares

600.00

Shares owned

600.00

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Common Stock

Underlying shares

460.00

Shares owned

460.00

Exercise price

Expiration

—

Exercise window

—

Total

Underlying

2.86K

Owned

2.86K

Security	Underlying	Exercise Window	Expiration	Underlying Shares	Shares Owned
Restricted Stock Units Direct	Common Stock	—	—	1.20K	1.20K
Restricted Stock Units Direct	Common Stock	—	—	600.00	600.00
Restricted Stock Units Direct	Common Stock	—	—	600.00	600.00
Restricted Stock Units Direct	Common Stock	—	—	460.00	460.00
Total				2.86K	2.86K