OTTER TAIL CORP

Ticker: OTTR CUSIP: 689648103 Class: Common Stock

ING GROEP NV's Holding History (CIK: 0001039765)

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

Q4 2013

Shares 91,500 Value ($000) $2,673 Avg Close $19.79 Range $18.12 - $20.92

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2013	91,500	$2,673	$19.79	$18.12 - $20.92