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Disclosery

SBLK STAR BULK CARRIERS CORP.

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SHS PAR (common), issuer CIK 1386716

185 managers (189 13F filers) reported a position in SBLK shares at 2026-03-31, 38,100,041 shares in all. 45 filers opened a position and 31 filers sold out during the quarter.

Managers
185
13F filers
189
New
45
Added
58
Reduced
53
Sold out
31
Shares held by filers
38,100,041

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

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
Erhardt Koertdirector2026-10-05-6,000 S$30.39Form 4

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP3,012,963$69.2M0.06%+2,450,56313F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC2,067,637$47.5M0.07%+237,24813F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC1,920,289$44.1M0.03%new13F-HRTimeline
Philosophy Capital Management LLC1,874,418$43.1M5.02%+224,41813F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,737,933$39.9M0.01%+1,102,53913F-HRTimelineGroup
Boston Partnersin group Boston Trust Walden Corp1,626,444$37.4M0.04%+783,34613F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY1,534,705$35.3M<0.01%+440,30113F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP1,216,937$28M0.03%+1,121,03213F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.1,173,877$27M0.02%+1,074,73613F-HRTimelineGroup
Focus Partners Wealthin group Focus Partners Wealth1,139,823$26.2M0.03%+98,57113F-HRTimelineGroup
Qube Research & Technologies Ltd1,086,842$25M0.04%new13F-HRTimeline
FEARNLEY ASSET MANAGEMENT AS951,206$21.8M7.14%+373,89013F-HRTimeline
COOPER CREEK PARTNERS MANAGEMENT LLC866,033$19.9M0.96%new13F-HRTimeline
Allianz Asset Management GmbHin group Allianz SE799,441$18.4M0.02%+32,66713F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.789,935$18.1M0.03%-17,21713F-HRTimelineGroup
HRT FINANCIAL LP771,227$17.7M0.04%+726,53113F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …757,426$17.4M0.01%new13F-HRTimelineGroup
DNB Asset Management ASin group DNB Asset Management AS743,785$17.1M0.06%-73,31413F-HRTimelineGroup
TUDOR INVESTMENT CORP ET AL735,010$16.9M0.09%new13F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC719,501$16.5M0.01%-167,55513F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO652,545$14.4M<0.01%+442,30513F-HR/ATimelineGroup
BlackRock, Inc.in group BlackRock, Inc.600,495$13.8M<0.01%+437,52813F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/565,562$13M<0.01%+184,83713F-HRTimelineGroup
Bridgewater Associates, LP551,329$12.7M0.06%-53,35713F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC550,289$12.6M0.01%+192,68713F-HRTimelineGroup
VOLORIDGE INVESTMENT MANAGEMENT, LLC522,548$12M0.05%+324,43913F-HRTimeline
Marnell Management LLC430,282$9.88M6.57%+69,09113F-HRTimeline
VANGUARD GROUP INCgroup of 4 filers holding424,521$9.75MnewTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC411,249$9.45M0.01%new13F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…379,452$8.72M0.01%+120,87913F-HRTimelineGroup
VALUEWORKS LLC354,861$8.15M2.22%-3,72713F-HRTimeline
Engineers Gate Manager LP313,107$7.19M0.09%new13F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd306,770$7.05M0.12%+176,43413F-HRTimelineGroup
Walleye Capital LLCgroup of 2 filers holding287,273$6.6M+246,699Timeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…284,567$6.54M0.01%-204,44313F-HRTimelineGroup
LPL Financial LLC272,763$6.27M<0.01%+118,68613F-HRTimeline
GSA CAPITAL PARTNERS LLP269,776$6.2M0.39%new13F-HRTimeline
UBS Group AGgroup of 2 filers holding224,122$5.15M-754,953Timeline
Jump Financial, LLCin group Jump Financial, LLC219,485$5.04M0.07%-256,61613F-HRTimelineGroup
Counterpoint Mutual Funds LLC208,427$4.79M0.72%new13F-HRTimeline
Campbell & CO Investment Adviser LLC183,453$4.21M0.24%new13F-HRTimeline
Schonfeld Strategic Advisors LLC156,027$3.58M0.03%+17,75213F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC154,107$3.54M<0.01%+3,86913F-HRTimelineGroup
Hartree Partners, LP150,000$3.45M0.75%new13F-HRTimeline
Y-Intercept (Hong Kong) Ltd144,945$3.33M0.06%new13F-HRTimeline
Numerai GP LLC143,054$3.29M0.33%new13F-HRTimeline
ExodusPoint Capital Management, LP140,162$3.22M0.03%-18,18213F-HRTimeline
KLP KAPITALFORVALTNING AS140,000$3.22M0.01%-10,00013F-HRTimeline
Manatuck Hill Partners, LLC133,800$3.07M1.01%-70,00013F-HRTimeline
Marex Group Ltdin group Marex Group Ltd126,024$2.89M0.03%+74,07013F-HRTimelineGroup
Impala Asset Management LLC120,000$2.76M1.28%-47,00013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP115,546$2.65M<0.01%-12,22313F-HRTimelineGroup
Aquatic Capital Management LLC115,477$2.65M0.08%new13F-HRTimeline
CFM WEALTH PARTNERS LLC114,425$2.63M0.39%+1,82413F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd105,589$2.43M0.09%new13F-HRTimelineGroup
Mraz, Amerine & Associates, Inc.97,991$2.25M0.33%-11013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS97,097$2.23M<0.01%+57,21313F-HRTimelineGroup
RBF Capital, LLC85,000$1.95M0.1%013F-HR/ATimeline
Buckland Partners Management Co LLC84,590$1.94M1.18%013F-HRTimeline
DYMON ASIA CAPITAL (SINGAPORE) PTE. LTD.in group DYMON ASIA CAPITAL (SINGAPORE…82,000$1.88M0.41%new13F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC81,292$1.87M<0.01%new13F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP76,596$1.76M<0.01%-59813F-HRTimelineGroup
Artemis Investment Management LLP75,773$1.74M0.02%new13F-HRTimeline
GRAHAM CAPITAL WEALTH MANAGEMENT, LLC74,551$1.71M1.52%new13F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP74,243$1.71M<0.01%-9,23813F-HRTimelineGroup
Tidal Investments LLCin group Tidal Investments LLC69,331$1.59M<0.01%+23,11513F-HRTimelineGroup
Headlands Technologies LLC65,815$1.51M0.17%+43,36913F-HRTimeline
Cetera Investment Advisers65,307$1.5M<0.01%+52,99713F-HRTimeline
Relyea Zuckerberg Hanson LLC64,390$1.48M0.15%-60,98713F-HRTimeline
FOX RUN MANAGEMENT, L.L.C.64,344$1.42M0.25%+30,61713F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC54,675$1.26M<0.01%-2,13813F-HRTimelineGroup
Raiffeisen Bank International AGin group Raiffeisen Bank International…52,578$1.21M0.02%-3,51213F-HRTimelineGroup
Dakota Wealth Management52,392$1.2M0.03%-3,91713F-HR/ATimeline
HORIZON KINETICS ASSET MANAGEMENT LLC51,770$1.19M0.01%+1,06913F-HRTimeline
BTG Pactual Asset Management US LLCin group BTG Pactual Asset Management …51,584$1.18M0.12%new13F-HRTimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC43,478$999K<0.01%-45,83413F-HRTimelineGroup
Dynamic Technology Lab Private Ltd43,322$995K0.16%new13F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC39,854$915K<0.01%-2,106,77713F-HR/ATimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC40,100$909K<0.01%new13F-HRTimelineGroup
Glenorchy Capital Ltd38,746$890K0.48%+8,42713F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC37,292$857K0.01%+17,29113F-HRTimelineGroup
Centiva Capital, LP36,843$846K0.04%new13F-HRTimeline
LANARK FINANCIAL, INC.35,425$814K0.06%-2,90013F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management32,870$755K<0.01%+19,89213F-HRTimelineGroup
FIL Ltdin group FIL Ltd32,583$748K<0.01%-312,45713F-HRTimelineGroup
ION Fund Management Ltdin group ION Fund Management Ltd30,270$695K0.11%013F-HRTimelineGroup
MANGROVE PARTNERS IM, LLC26,864$617K0.05%+15,57313F-HRTimeline
GROUP ONE TRADING LLC25,526$586K0.02%-196,44713F-HRTimeline
R Squared Ltd25,293$581K0.32%new13F-HRTimeline
SIMPLEX TRADING, LLC25,194$579K0.02%-1,44813F-HRTimeline
TWO SIGMA SECURITIES, LLC25,076$576K0.07%new13F-HRTimeline
Sciencast Management LP24,512$563K0.07%new13F-HRTimeline
EAGLE HARBOR ASSET MANAGEMENT INC /ADV23,515$540K0.46%+3413F-HRTimeline
Vident Advisory, LLCin group Vident Advisory, LLC22,582$519K<0.01%+7,11913F-HRTimelineGroup
CAPITAL FUND MANAGEMENT S.A.22,387$514K<0.01%-31,90513F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN21,953$504K<0.01%-6,55213F-HR/ATimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC21,862$502K0.01%new13F-HRTimeline
nVerses Capital, LLC21,851$502K0.46%new13F-HRTimeline
Sippican Capital Advisors21,677$498K0.34%013F-HRTimeline
Gotham Asset Management, LLC21,600$496K<0.01%013F-HRTimeline
PICTON MAHONEY ASSET MANAGEMENT20,867$479K<0.01%new13F-HRTimeline
Mariner, LLCin group Mariner, LLC20,077$461K<0.01%+2,60313F-HRTimelineGroup
Integrated Wealth Concepts LLC19,696$452K<0.01%-20013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.19,595$450K<0.01%-30,58713F-HRTimelineGroup
Entropy Technologies, LP19,013$437K0.02%new13F-HRTimeline
Moors & Cabot, Inc.19,000$436K0.02%-2,50013F-HRTimeline
Intrua Financial, LLC18,508$425K0.05%+5313F-HRTimeline
Kestra Advisory Services, LLCin group Kestra Advisory Services, LLC18,335$421K<0.01%+3,28113F-HRTimelineGroup
Empowered Funds, LLC17,550$403K<0.01%new13F-HR/ATimeline
DAVENPORT & Co LLC17,519$402K<0.01%-3,97213F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA17,175$394K<0.01%-9,51713F-HRTimelineGroup
Cambridge Investment Research Advisors,…16,544$380K<0.01%-1,59813F-HRTimeline
Verition Fund Management LLC15,594$358K<0.01%-128,10713F-HRTimeline
GLENMEDE TRUST CO NAin group GLENMEDE TRUST CO NA15,534$357K<0.01%013F-HRTimelineGroup
CIBC Bancorp USA Inc.in group CIBC Bancorp USA Inc.15,100$347K<0.01%13F-HRTimelineGroup
Virtu Financial LLCin group Virtu Financial LLC15,012$345K0.01%new13F-HRTimelineGroup
Sigma Planning Corp14,519$333K0.01%-2,53513F-HRTimeline
MQS Management LLC14,081$323K0.22%-26,53913F-HRTimeline
Caitong International Asset Management …13,979$321K0.06%new13F-HRTimeline
CenterBook Partners LP13,211$303K0.02%new13F-HRTimeline
B. Riley Wealth Advisors, Inc.13,254$292K0.02%-1,96613F-HRTimeline
National Philanthropic Trust12,668$291K<0.01%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC12,321$283K<0.01%+2,00213F-HRTimelineGroup
SILVERCREST ASSET MANAGEMENT GROUP LLC12,185$280K<0.01%+42513F-HRTimeline
TOTH FINANCIAL ADVISORY CORP11,182$257K0.03%+11,00013F-HRTimeline
State of Wyoming10,363$238K0.03%+6,79313F-HRTimeline
Rossby Financial, LCC10,010$237K0.05%+1013F-HRTimeline
SBI Securities Co., Ltd.9,577$220K0.01%-53913F-HRTimeline
Delaney Capital Management Ltd.8,800$202K0.03%new13F-HRTimeline
SUMMIT SECURITIES GROUP LLC8,400$193K0.09%new13F-HRTimeline
SG Americas Securities, LLC8,121$187K<0.01%new13F-HRTimeline
State of Alaska, Department of Revenue6,533$150K<0.01%013F-HRTimeline
Advisory Services Network, LLC6,482$149K<0.01%new13F-HRTimeline
Financial Gravity Asset Management, Inc.in group Financial Gravity Companies, …5,414$124K0.02%+3,92813F-HRTimelineGroup
Bank Julius Baer & Co. Ltd, Zurich5,168$119K<0.01%new13F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc5,076$117K<0.01%013F-HRTimelineGroup
Blue Trust, Inc.4,992$115K<0.01%-56513F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…4,270$98.1K<0.01%-26613F-HRTimeline
HARBOUR INVESTMENTS, INC.4,156$95.5K<0.01%+3,95613F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\3,074$70.6K<0.01%013F-HRTimelineGroup
Quarry LP2,998$68.9K0.01%-4,62913F-HRTimeline
Federation des caisses Desjardins du Qu…2,700$62K<0.01%013F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…2,605$59.8K<0.01%-3413F-HRTimelineGroup
NOMURA ASSET MANAGEMENT CO LTDin group NOMURA ASSET MANAGEMENT CO LTD2,500$57.4K<0.01%013F-HRTimelineGroup
MATHER GROUP, LLC.2,400$55.1K<0.01%new13F-HRTimeline
Capital Analysts, LLCin group Capital Analysts, LLC2,361$54K<0.01%+3813F-HRTimelineGroup
FNY Investment Advisers, LLC1,800$41K0.02%new13F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP1,727$38.4K<0.01%+10413F-HRTimelineGroup
SIGNATUREFD, LLC1,524$35K<0.01%013F-HRTimeline
CoreCap Advisors, LLC1,326$30.5K<0.01%+213F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…1,265$29.1K<0.01%+26413F-HR/ATimelineGroup
Rialto Wealth Management, LLC1,213$27.9K0.01%013F-HRTimeline
Leonteq Securities AG1,200$27.6K<0.01%-76013F-HRTimeline
Allworth Financial LP1,166$26.8K<0.01%+1213F-HRTimeline
Geneos Wealth Management Inc.1,158$26.6K<0.01%013F-HRTimeline
FMR LLCin group FMR LLC945$21.7K<0.01%013F-HRTimelineGroup
Triumph Capital Management900$20.7K<0.01%013F-HRTimeline
Larson Financial Group LLC729$16.8K<0.01%-75713F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC655$15K<0.01%new13F-HRTimelineGroup
AMERIFLEX GROUP, INC.589$13.5K0.01%013F-HRTimeline
Clearstead Advisors, LLC545$12.5K<0.01%+24513F-HRTimeline
Archer Investment Corp536$12.3K<0.01%013F-HRTimeline
Evelyn Partners Asset Management Ltdin group Evelyn Partners Group Ltd536$12.3K<0.01%013F-HRTimelineGroup
MAI Capital Management516$11.9K<0.01%-9913F-HRTimeline
CNB Bank470$10.8K<0.01%013F-HRTimeline
Steward Partners Investment Advisory, L…408$9.36K<0.01%+40213F-HRTimeline
IFP Advisors, Inc353$8.11K<0.01%013F-HRTimeline
Golden State Wealth Management, LLC335$7.7K<0.01%-1,27413F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…299$6.87K<0.01%+10413F-HRTimelineGroup
Nvest Wealth Strategies, Inc.262$6.02K<0.01%013F-HRTimeline
ARMSTRONG ADVISORY GROUP, INC250$5.74K<0.01%013F-HRTimeline
GAMMA Investing LLC250$5.74K<0.01%+5013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC220$5.05K<0.01%new13F-HRTimelineGroup
VISION FINANCIAL MARKETS LLC206$4.72K<0.01%+313F-HRTimeline
Ramirez Asset Management, Inc.147$3.48K<0.01%-47013F-HRTimeline
Smartleaf Asset Management LLC143$3.15K<0.01%-4613F-HRTimeline
AdvisorNet Financial, Inc134$3.09K<0.01%013F-HRTimeline
Pacer Advisors, Inc.107$2K<0.01%-12813F-HR/ATimeline
Bell Investment Advisors, Inc44$1.01K<0.01%-25113F-HRTimeline
Fortitude Family Office, LLC34$781<0.01%013F-HRTimeline
Farther Finance Advisors, LLC32$757<0.01%013F-HRTimeline
Parallel Advisors, LLC25$574<0.01%new13F-HR/ATimeline
DT Investment Partners, LLC9$207<0.01%013F-HRTimeline
American Capital Advisory, LLC5$115<0.01%013F-HRTimeline
MJT & Associates Financial Advisory Gro…1$6<0.01%-113F-HRTimeline

Events

  • Erhardt Koert sold 6,000 SBLK shares on 2026-10-05, Form 4 filed 2026-10-07. 0001333848-26-000005

    Accepted , ingested