ALLEGHENY TECHNOLOGIES INC

Ticker: ATI CUSIP: 01741R102 Class: EQTY

OMERS ADMINISTRATION Corp's Holding History (CIK: 0001053321)

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

Q4 2023

Shares 16,300 Value ($000) $741 Avg Close $41.52 Range $35.03 - $46.57

Q1 2016

Shares 208,500 Value ($000) $3,399 Avg Close $12.00 Range $6.97 - $18.17

Q4 2015

Shares 28,000 Value ($000) $315 Avg Close $13.45 Range $9.91 - $18.65

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2023	16,300	$741	$41.52	$35.03 - $46.57
Q1 2016	208,500	$3,399	$12.00	$6.97 - $18.17
Q4 2015	28,000	$315	$13.45	$9.91 - $18.65