ALLEGHENY TECHNOLOGIES INC

CUSIP: 01741RAD4 Class: CNV

ONTARIO TEACHERS PENSION PLAN BOARD's Holding History (CIK: 0000937567)

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

Q4 2013
Shares 1,000,000 Value ($000) $1,038 Avg Close — Range —
Q3 2013
Shares 1,000,000 Value ($000) $1,041 Avg Close — Range —
Q2 2013
Shares 1,000,000 Value ($000) $1,034 Avg Close — Range —