ALLEGHENY TECHNOLOGIES INC

Ticker: ATI CUSIP: 01741R102 Class: EQTY

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

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

Q4 2025
Shares 213,111 Value ($000) $24,457 Avg Close $97.45 Range $79.29 - $117.48
Q3 2024
Shares 816,690 Value ($000) $54,645 Avg Close $62.09 Range $53.90 - $68.92
Q2 2024
Shares 521,118 Value ($000) $28,896 Avg Close $56.03 Range $47.90 - $62.44
Q4 2023
Shares 1,548,353 Value ($000) $70,404 Avg Close $41.52 Range $35.03 - $46.57
Q3 2023
Shares 2,166,804 Value ($000) $89,164 Avg Close $44.44 Range $41.04 - $47.92
Q2 2023
Shares 2,162,011 Value ($000) $95,626 Avg Close $38.25 Range $34.10 - $44.39
Q1 2023
Shares 2,165,215 Value ($000) $85,439 Avg Close $37.76 Range $29.37 - $43.32
Q4 2022
Shares 2,071,894 Value ($000) $61,867 Avg Close $29.27 Range $25.39 - $31.74
Q3 2022
Shares 2,266,489 Value ($000) $60,311 Avg Close $27.84 Range $20.52 - $33.31
Q2 2022
Shares 2,377,194 Value ($000) $53,986 Avg Close $26.35 Range $20.87 - $30.74
Q1 2022
Shares 1,907,707 Value ($000) $51,203 Avg Close $23.18 Range $16.02 - $28.45
Q4 2018
Shares 73,547 Value ($000) $1,601 Avg Close $25.93 Range $20.84 - $29.84
Q3 2018
Shares 72,980 Value ($000) $2,157 Avg Close $26.89 Range $24.31 - $30.18
Q4 2013
Shares 12,777 Value ($000) $455 Avg Close $30.74 Range $27.52 - $33.68