ALLETE INC

CUSIP: 018522300 Class: Common Stock

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q2 2015
Shares 403,898 Value ($000) $18,736 Avg Close — Range —
Q1 2015
Shares 384,126 Value ($000) $20,266 Avg Close — Range —
Q4 2014
Shares 383,364 Value ($000) $21,138 Avg Close — Range —
Q3 2014
Shares 336,765 Value ($000) $14,948 Avg Close — Range —
Q2 2014
Shares 333,287 Value ($000) $17,114 Avg Close — Range —
Q1 2014
Shares 366,969 Value ($000) $19,236 Avg Close — Range —
Q4 2013
Shares 315,027 Value ($000) $15,713 Avg Close — Range —
Q3 2013
Shares 225,830 Value ($000) $10,907 Avg Close — Range —
Q2 2013
Shares 191,626 Value ($000) $9,552 Avg Close — Range —