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Disclosery

ZEUS OLYMPIC STEEL INC

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Stock (common)

142 managers (144 13F filers) reported a position in ZEUS shares at 2025-12-31, 9,467,394 shares in all. 32 filers opened a position and 28 filers sold out during the quarter.

Managers
142
13F filers
144
New
32
Added
28
Reduced
61
Sold out
28
Shares held by filers
9,467,394

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.2,089,367$89.4M<0.01%-120,78013F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP725,573$31M0.01%-18,25513F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC585,066$25M<0.01%-23,14213F-HRTimelineGroup
NOMURA ASSET MANAGEMENT INTERNATIONAL I…in group NOMURA ASSET MANAGEMENT CO LTD540,629$23.1M0.03%13F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC411,121$17.6M0.01%+19,69013F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co328,297$14M<0.01%+76,19113F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC240,658$10.3M<0.01%-48413F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.228,001$9.76M<0.01%+141,11113F-HRTimeline
JB CAPITAL PARTNERS LP222,499$9.52M1.64%013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP217,462$9.3M<0.01%-64613F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.216,950$9.28M0.01%+63,13213F-HRTimelineGroup
Invenomic Capital Management LP209,187$8.95M0.43%+5,87513F-HRTimeline
Qube Research & Technologies Ltd202,223$8.65M0.01%+129,23313F-HRTimeline
CSM Advisors, LLC175,415$7.5M0.2%-1,76513F-HRTimeline
ABC ARBITRAGE SAin group ABC ARBITRAGE SA157,300$6.73M0.63%new13F-HRTimelineGroup
Magnetar Financial LLCin group Magnetar Financial LLC154,020$6.59M0.06%new13F-HRTimelineGroup
Nuveen, LLCin group TIAA150,950$6.46M<0.01%+22,18613F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY149,810$6.41M<0.01%-108,04013F-HR/ATimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC142,267$6.09M<0.01%-107,58513F-HRTimelineGroup
MAI Capital Management125,856$5.38M0.03%013F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …120,454$5.15M<0.01%+12,94713F-HRTimelineGroup
Versor Investments LP118,426$5.07M0.79%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\112,939$4.83M<0.01%+34,00113F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp112,460$4.81M<0.01%-3,17013F-HRTimelineGroup
TORONTO DOMINION BANKin group TORONTO DOMINION BANK102,300$4.38M0.01%new13F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC92,021$3.94M<0.01%+56,35313F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP88,925$3.8M<0.01%-6,47813F-HRTimelineGroup
AEGIS FINANCIAL CORP73,515$3.15M0.75%new13F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC70,777$3.03M0.01%+62,45013F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC69,848$2.99M0.06%-52,98613F-HRTimeline
FMR LLCin group FMR LLC64,353$2.75M<0.01%-7,30313F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC57,215$2.45M<0.01%-175,09713F-HR/ATimelineGroup
Skandinaviska Enskilda Banken AB (publ)55,782$2.39M0.01%new13F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management55,526$2.38M<0.01%new13F-HRTimelineGroup
LSV ASSET MANAGEMENT51,800$2.22M<0.01%013F-HRTimeline
Verition Fund Management LLC50,096$2.14M0.01%new13F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC50,035$2.14M<0.01%-34,56613F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC45,198$1.93M<0.01%+5,40013F-HRTimeline
HRT FINANCIAL LP41,607$1.78M0.01%new13F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC38,509$1.65M<0.01%-2,39813F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO37,479$1.6M<0.01%-35,52213F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC34,274$1.47M<0.01%-83,49613F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC32,846$1.39M<0.01%-4,06613F-HR/ATimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC31,678$1.36M<0.01%+19,52913F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding25,439$1.09M-58,708Timeline
Janney Montgomery Scott LLC25,037$1.07M<0.01%-5,10413F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…24,623$1.05M<0.01%+17113F-HRTimelineGroup
SummerHaven Investment Management, LLC24,379$1.04M0.59%013F-HRTimeline
Empowered Funds, LLC22,581$966K0.02%-52,68613F-HR/ATimeline
Invesco Ltd.in group Invesco Ltd.20,696$885K<0.01%+1,67313F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA20,171$863K<0.01%-39,13213F-HRTimelineGroup
OXFORD ASSET MANAGEMENT LLP18,242$780K0.28%new13F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/17,883$766K<0.01%+1,96213F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/17,322$741K<0.01%-29,18513F-HRTimelineGroup
PANAGORA ASSET MANAGEMENT INC16,307$698K<0.01%-35,42013F-HRTimeline
WATER ISLAND CAPITAL LLC16,293$697K0.09%new13F-HRTimeline
Ethic Inc.15,480$662K0.01%+3,79613F-HRTimeline
Quantinno Capital Management LP15,282$654K<0.01%+5,96413F-HRTimeline
IEQ CAPITAL, LLC15,077$645K<0.01%-3,76213F-HRTimeline
New York Life Investment Management LLCin group New York Life Investment Mana…15,012$642K0.01%new13F-HRTimelineGroup
KLP KAPITALFORVALTNING AS14,900$637K<0.01%013F-HRTimeline
HARVEST MANAGEMENT LLC14,434$618K0.23%new13F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources13,508$578K<0.01%-63713F-HRTimelineGroup
RHUMBLINE ADVISERS13,376$572K<0.01%-2,00313F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding11,884$508KnewTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN11,110$475K<0.01%+3,02013F-HRTimelineGroup
CANADA PENSION PLAN INVESTMENT BOARD11,000$471K<0.01%new13F-HRTimeline
OP Asset Management Ltd9,852$422K0.01%+3,00713F-HR/ATimeline
Polar Asset Management Partners Inc.9,708$415K0.01%new13F-HRTimeline
STRS OHIO8,900$381K<0.01%+7,00013F-HRTimeline
Polymer Capital Management (US) LLC8,324$356K0.05%new13F-HRTimeline
BAILARD, INC.8,100$347K0.01%new13F-HRTimeline
CWM, LLCin group CWM, LLC8,089$346K<0.01%-1,90013F-HRTimelineGroup
Mariner, LLCin group Mariner, LLC7,535$323K<0.01%-3,53013F-HRTimelineGroup
Corient Private Wealth LPgroup of 2 filers holding7,500$321K-8,097Timeline
VICTORY CAPITAL MANAGEMENT INC7,211$309K<0.01%-45,09913F-HRTimeline
Cetera Investment Advisers7,128$305K<0.01%+513F-HRTimeline
Odyssean, LLC6,760$289K0.21%13F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd6,595$282K0.01%-15,05913F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS6,433$275K<0.01%-39,04713F-HRTimelineGroup
DAYMARK WEALTH PARTNERS, LLC6,000$257K0.01%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…5,868$251K<0.01%013F-HRTimelineGroup
Creative Planningin group Creative Planning5,309$227K<0.01%-3,78313F-HRTimelineGroup
PRELUDE CAPITAL MANAGEMENT, LLC5,073$217K0.02%new13F-HRTimeline
BEDDOW CAPITAL MANAGEMENT INC5,000$214K0.08%new13F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO4,806$206K<0.01%-13,50413F-HRTimelineGroup
Sagefield Capital LPin group Sagefield Capital LP4,735$203K0.02%new13F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding4,671$200K-5,980Timeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…4,618$198K<0.01%-4313F-HRTimelineGroup
AlphaQuest LLC4,175$179K0.01%-12,21613F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND4,080$175K<0.01%013F-HRTimeline
SG Americas Securities, LLC3,809$163K<0.01%-8,04813F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…3,562$152K<0.01%+5613F-HR/ATimelineGroup
CoreCap Advisors, LLC2,900$124K<0.01%-76913F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC2,370$101K<0.01%-2,78613F-HRTimelineGroup
Police & Firemen's Retirement System of…2,290$98K<0.01%013F-HRTimeline
LONGFELLOW INVESTMENT MANAGEMENT CO LLC2,100$89.8K0.02%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,169$50K<0.01%+78513F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…1,156$49.5K<0.01%-14,40813F-HRTimeline
CITIGROUP INCin group CITIGROUP INC948$40.6K<0.01%-96413F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc915$39.1K<0.01%013F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.901$38.5K<0.01%+49213F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…804$34.4K<0.01%-21713F-HRTimelineGroup
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…641$27.4K<0.01%-35613F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…609$26.1K<0.01%-813F-HRTimeline
Sterling Capital Management LLC571$24.4K<0.01%-11213F-HRTimeline
HARBOUR INVESTMENTS, INC.556$23.8K<0.01%013F-HRTimeline
State of Alaska, Department of Revenue456$19K<0.01%013F-HRTimeline
Essential Partners LLC423$18.1K0.01%-3113F-HRTimeline
QUADRANT CAPITAL GROUP LLC365$15.6K<0.01%-5013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…362$15.5K<0.01%+2913F-HR/ATimelineGroup
Strategic Advocates LLC300$13K<0.01%013F-HRTimeline
AMALGAMATED BANK311$13K<0.01%-1613F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP264$11.3K<0.01%013F-HRTimelineGroup
GAMMA Investing LLC262$11.2K<0.01%-8413F-HRTimeline
Covestor Ltd260$11K0.01%-313F-HRTimeline
Pinnacle Wealth Planning Services, Inc.252$10.8K<0.01%new13F-HRTimeline
Allworth Financial LP224$9.58K<0.01%-2913F-HRTimeline
Smithfield Trust Co199$8K<0.01%-1513F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…131$5.61K<0.01%+11613F-HRTimelineGroup
IFP Advisors, Inc131$5.61K<0.01%-10013F-HRTimeline
Smartleaf Asset Management LLC123$5.34K<0.01%013F-HRTimeline
COMERICA BANK112$4.79K<0.01%-10,08513F-HRTimeline
NISA INVESTMENT ADVISORS, LLC109$4.66K<0.01%-9813F-HRTimeline
PenderFund Capital Management Ltd.109$4.66K<0.01%new13F-HRTimeline
HARBOR CAPITAL ADVISORS, INC.85$4K<0.01%-113F-HRTimeline
ROTHSCHILD INVESTMENT LLC50$2.14K<0.01%+1613F-HRTimeline
NewEdge Advisors, LLC50$2.14K<0.01%013F-HRTimeline
SIGNATUREFD, LLC49$2.1K<0.01%-5813F-HRTimeline
Farther Finance Advisors, LLC45$1.93K<0.01%new13F-HRTimeline
True Wealth Design, LLC36$1.54K<0.01%-1113F-HRTimeline
Parkside Financial Bank & Trust33$1.41K<0.01%013F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC36$1.27K<0.01%new13F-HRTimeline
Geneos Wealth Management Inc.26$1.11K<0.01%013F-HRTimeline
Steward Partners Investment Advisory, L…20$856<0.01%013F-HRTimeline
Kilter Group LLC19$813<0.01%013F-HRTimeline
Parallel Advisors, LLC12$513<0.01%013F-HRTimeline
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…11$471<0.01%new13F-HRTimelineGroup
Clearstead Advisors, LLC3$129<0.01%-8613F-HRTimeline
SIMPLEX TRADING, LLC3$128<0.01%-9113F-HRTimeline
SJS Investment Consulting Inc.2$86<0.01%new13F-HRTimeline
Kingdom Financial Group LLC.0$11<0.01%new13F-HRTimelineAmount filed as zero, left out of ratios.