ALLEGHENY TECHNOLOGIES INC

Ticker: ATI CUSIP: 01741R102 Class: EQTY

SIERRA OCEAN, LLC's Holding History (CIK: 0002051715)

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

Q2 2025

Shares 279 Value ($000) $24 Avg Close $68.45 Range $39.23 - $87.75

Q1 2025

Shares 279 Value ($000) $15 Avg Close $56.77 Range $49.07 - $66.80

Q4 2024

Shares 279 Value ($000) $15 Avg Close $58.97 Range $52.45 - $67.09

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	279	$24	$68.45	$39.23 - $87.75
Q1 2025	279	$15	$56.77	$49.07 - $66.80
Q4 2024	279	$15	$58.97	$52.45 - $67.09