ALLEGHENY TECHNOLOGIES INC

Ticker: ATI CUSIP: 01741R102 Class: EQTY

IRIDIAN ASSET MANAGEMENT LLC/CT's Holding History (CIK: 0001033427)

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

Q2 2019
Shares 3,603,621 Value ($000) $90,811 Avg Close $24.37 Range $21.15 - $27.49
Q1 2019
Shares 1,706,231 Value ($000) $43,628 Avg Close $26.33 Range $21.00 - $29.50
Q4 2018
Shares 41,593 Value ($000) $905 Avg Close $25.93 Range $20.84 - $29.84
Q3 2018
Shares 14,117 Value ($000) $417 Avg Close $26.89 Range $24.31 - $30.18
Q2 2018
Shares 6,103,626 Value ($000) $153,323 Avg Close $27.05 Range $22.93 - $29.87
Q1 2018
Shares 8,066,250 Value ($000) $191,009 Avg Close $26.83 Range $22.70 - $30.25
Q4 2017
Shares 8,649,563 Value ($000) $208,800 Avg Close $23.80 Range $21.01 - $26.59
Q3 2017
Shares 8,614,055 Value ($000) $205,876 Avg Close $19.78 Range $16.51 - $24.00
Q2 2017
Shares 8,725,099 Value ($000) $148,414 Avg Close $16.82 Range $14.54 - $20.11
Q1 2017
Shares 6,677,269 Value ($000) $119,924 Avg Close $18.80 Range $15.61 - $23.69
Q4 2016
Shares 1,539,459 Value ($000) $24,524 Avg Close $16.62 Range $13.15 - $19.20