OTTER TAIL CORP

Ticker: OTTR CUSIP: 689648103 Class: Common Stock

Robeco Institutional Asset Management B.V.'s Holding History (CIK: 0001418773)

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

Q3 2019
Shares 3,080 Value ($000) $166 Avg Close $43.78 Range $40.10 - $46.25
Q2 2019
Shares 3,080 Value ($000) $163 Avg Close $42.32 Range $40.14 - $44.48
Q1 2019
Shares 8,396 Value ($000) $418 Avg Close $40.53 Range $37.77 - $42.81
Q4 2018
Shares 8,396 Value ($000) $417 Avg Close $39.10 Range $36.10 - $42.66
Q3 2018
Shares 8,396 Value ($000) $402 Avg Close $39.34 Range $38.11 - $40.62
Q2 2018
Shares 8,396 Value ($000) $400 Avg Close $36.40 Range $34.04 - $39.53
Q1 2018
Shares 8,396 Value ($000) $364 Avg Close $33.54 Range $29.25 - $35.88
Q4 2017
Shares 8,396 Value ($000) $373 Avg Close $36.46 Range $34.36 - $38.83
Q3 2017
Shares 8,396 Value ($000) $364 Avg Close $32.68 Range $30.48 - $35.27
Q2 2017
Shares 8,396 Value ($000) $332 Avg Close $30.80 Range $28.67 - $32.99
Q1 2017
Shares 8,396 Value ($000) $318 Avg Close $29.42 Range $27.80 - $31.55
Q4 2016
Shares 8,396 Value ($000) $343 Avg Close $28.65 Range $25.36 - $32.91