ALLEGHENY TECHNOLOGIES INC

Ticker: ATI CUSIP: 01741R102 Class: EQTY

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

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

Q4 2025

Shares 44,102 Value ($000) $5,061 Avg Close $97.45 Range $79.29 - $117.48

Q3 2025

Shares 3,687 Value ($000) $300 Avg Close $81.04 Range $70.42 - $96.20

Q2 2025

Shares 3,587 Value ($000) $310 Avg Close $68.45 Range $39.23 - $87.75

Q3 2024

Shares 3,587 Value ($000) $240 Avg Close $62.09 Range $53.90 - $68.92

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	44,102	$5,061	$97.45	$79.29 - $117.48
Q3 2025	3,687	$300	$81.04	$70.42 - $96.20
Q2 2025	3,587	$310	$68.45	$39.23 - $87.75
Q3 2024	3,587	$240	$62.09	$53.90 - $68.92