Stock Ownership/ZEUS

OLYMPIC STEEL INC (ZEUS): Historical 13F Ownership

Historical 13F ownership records for ZEUS · Materials. The positions below are no longer present in the latest filing from any tracked manager.

Former Holders

Historical 13F filers

Last Reported Value

$54.1M

Across former positions

Last Price

—

EOD close

Sector

Materials

GICS

Historical data:This security is absent from every tracked manager's latest 13F. Each row is that manager's most recent historical position and the quarter shown is its reporting date. Do not interpret these values as current ownership.

Historical 13F Positions in ZEUS

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19 former holders

Manager⇅	Type⇅	Shares⇅	Market Value▼	% of Total⇅	% of Portfolio⇅	Action⇅	QoQ Change⇅	Quarter⇅
SHAW D E & CO INC CIK 0001009207	Hedge Fund	217K	$9.3M	17.2%	0.0%	New	—	Q4 2025
Qube Research & Technologies Ltd CIK 0001729829	Hedge Fund	202K	$8.7M	16.0%	0.0%	New	—	Q4 2025
Magnetar Financial LLC CIK 0001352851	Hedge Fund	154K	$6.6M	12.2%	0.1%	New	—	Q4 2025
AQR CAPITAL MANAGEMENT LLC CIK 0001167557	Hedge Fund	142K	$6.1M	11.3%	0.0%	New	—	Q4 2025
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 0001164508	Hedge Fund	120K	$5.2M	9.5%	0.0%	New	—	Q4 2025
MILLENNIUM MANAGEMENT LLC CIK 0001273087	Hedge Fund	92K	$3.9M	7.3%	0.0%	New	—	Q4 2025
Squarepoint Ops LLC CIK 0001642575	Hedge Fund	71K	$3.0M	5.6%	0.0%	New	—	Q4 2025
BALYASNY ASSET MANAGEMENT LLC CIK 0001218710	Hedge Fund	56K	$2.4M	4.4%	0.0%	New	—	Q4 2025
Verition Fund Management LLC CIK 0001454027	Hedge Fund	50K	$2.1M	4.0%	0.0%	New	—	Q4 2025
RENAISSANCE TECHNOLOGIES LLC CIK 0001037389	Hedge Fund	45K	$1.9M	3.6%	0.0%	Added	+$231K	Q4 2025

SHAW D E & CO INCNew

Hedge Fund

$9.3M· 17.2% of total· 0.0% port· 217K sh· — QoQ· Q4 2025

Qube Research & Technologies LtdNew

Hedge Fund

$8.7M· 16.0% of total· 0.0% port· 202K sh· — QoQ· Q4 2025

Magnetar Financial LLCNew

Hedge Fund

$6.6M· 12.2% of total· 0.1% port· 154K sh· — QoQ· Q4 2025

AQR CAPITAL MANAGEMENT LLCNew

Hedge Fund

$6.1M· 11.3% of total· 0.0% port· 142K sh· — QoQ· Q4 2025

ARROWSTREET CAPITAL, LIMITED PARTNERSHIPNew

Hedge Fund

$5.2M· 9.5% of total· 0.0% port· 120K sh· — QoQ· Q4 2025

MILLENNIUM MANAGEMENT LLCNew

Hedge Fund

$3.9M· 7.3% of total· 0.0% port· 92K sh· — QoQ· Q4 2025

Squarepoint Ops LLCNew

Hedge Fund

$3.0M· 5.6% of total· 0.0% port· 71K sh· — QoQ· Q4 2025

BALYASNY ASSET MANAGEMENT LLCNew

Hedge Fund

$2.4M· 4.4% of total· 0.0% port· 56K sh· — QoQ· Q4 2025

Verition Fund Management LLCNew

Hedge Fund

$2.1M· 4.0% of total· 0.0% port· 50K sh· — QoQ· Q4 2025

RENAISSANCE TECHNOLOGIES LLCAdded

Hedge Fund

$1.9M· 3.6% of total· 0.0% port· 45K sh· +$231K QoQ· Q4 2025

TWO SIGMA INVESTMENTS, LPReduced

Hedge Fund

$1.1M· 2.0% of total· 0.0% port· 25K sh· $-1.8M QoQ· Q4 2025

Walleye Capital LLCNew

Hedge Fund

$1.0M· 1.9% of total· 0.0% port· 31K sh· — QoQ· Q2 2025

CITADEL ADVISORS LLCAdded

Hedge Fund

$773K· 1.4% of total· 0.0% port· 25K sh· +$578K QoQ· Q3 2025

TUDOR INVESTMENT CORP ET ALNew

Hedge Fund

$614K· 1.1% of total· 0.0% port· 19K sh· — QoQ· Q2 2025

ExodusPoint Capital Management, LPNew

Hedge Fund

$609K· 1.1% of total· 0.0% port· 19K sh· — QoQ· Q2 2025

Man Group plcNew

Hedge Fund

$432K· 0.8% of total· 0.0% port· 14K sh· — QoQ· Q1 2025

Brevan Howard Capital Management LPNew

Hedge Fund

$250K· 0.5% of total· 0.0% port· 8K sh· — QoQ· Q3 2025

Ancora Advisors, LLCNew

Hedge Fund

$101K· 0.2% of total· 0.0% port· 2K sh· — QoQ· Q4 2025

Rockefeller Capital Management L.P.New

Hedge Fund

$16K· 0.0% of total· 0.0% port· 362 sh· — QoQ· Q4 2025

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