ALLEGHENY TECHNOLOGIES INC

Ticker: ATI CUSIP: 01741R102 Class: EQTY

Cartenna Capital, LP's Holding History (CIK: 0001808928)

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

Q4 2025

Shares 260,000 Value ($000) $29,838 Avg Close $97.45 Range $79.29 - $117.48

Q4 2024

Shares 442,746 Value ($000) $24,369 Avg Close $58.97 Range $52.45 - $67.09

Q1 2024

Shares 600,000 Value ($000) $30,702 Avg Close $45.22 Range $38.04 - $51.95

Q4 2023

Shares 435,000 Value ($000) $19,779 Avg Close $41.52 Range $35.03 - $46.57

Q3 2023

Shares 265,000 Value ($000) $10,905 Avg Close $44.44 Range $41.04 - $47.92

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	260,000	$29,838	$97.45	$79.29 - $117.48
Q4 2024	442,746	$24,369	$58.97	$52.45 - $67.09
Q1 2024	600,000	$30,702	$45.22	$38.04 - $51.95
Q4 2023	435,000	$19,779	$41.52	$35.03 - $46.57
Q3 2023	265,000	$10,905	$44.44	$41.04 - $47.92