OLYMPIC STEEL INC

Ticker: ZEUS CUSIP: 68162K106 Class: Common Stock

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q1 2021

Shares 12,664 Value ($000) $373 Avg Close $19.40 Range $13.38 - $32.60

Q4 2016

Shares 20,942 Value ($000) $507 Avg Close $23.60 Range $17.14 - $28.67

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	12,664	$373	$19.40	$13.38 - $32.60
Q4 2016	20,942	$507	$23.60	$17.14 - $28.67