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Star Bulk Carriers Corp.

SBLK
Exchange
Nasdaq
Industry
Deep Sea Foreign Transportation of Freight
SEC CIK
0001386716

In the last 90 days, Star Bulk Carriers Corp. insiders filed 9 open-market purchases and 8 sales; 203 institutions reported holding it in 13F filings for Q2 2026, worth $1.00B in total; no superinvestor holds it.

13F holders, Q4 2025

Institutional positions in Star Bulk Carriers Corp. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
175
+12 vs. Q3 2025
Shares held
32.6M
+3.50M (+12.0%) vs. Q3 2025
Total value
$626.4M
+$84.9M (+15.7%) vs. Q3 2025
New holders
40
46 more added
Sold out
28
51 more reduced

3 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting SBLK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2025: 175 institutions
Q1 2021: 89 institutionsQ2 2021: 126 institutionsQ3 2021: 120 institutionsQ4 2021: 138 institutionsQ1 2022: 190 institutionsQ2 2022: 185 institutionsQ3 2022: 164 institutionsQ4 2022: 161 institutionsQ1 2023: 174 institutionsQ2 2023: 160 institutionsQ3 2023: 151 institutionsQ4 2023: 177 institutionsQ1 2024: 204 institutionsQ2 2024: 243 institutionsQ3 2024: 223 institutionsQ4 2024: 220 institutionsQ1 2025: 190 institutionsQ2 2025: 173 institutionsQ3 2025: 166 institutionsQ4 2025: 175 institutionsQ1 2026: 190 institutionsQ2 2026: 203 institutions
Value heldQ4 2025: $626.4M
Q1 2021: $869.5MQ2 2021: $1.44BQ3 2021: $1.33BQ4 2021: $1.14BQ1 2022: $1.64BQ2 2022: $1.34BQ3 2022: $833.6MQ4 2022: $909.8MQ1 2023: $1.05BQ2 2023: $820.7MQ3 2023: $700.7MQ4 2023: $667.2MQ1 2024: $951.1MQ2 2024: $1.36BQ3 2024: $1.08BQ4 2024: $570.9MQ1 2025: $567.1MQ2 2025: $551.7MQ3 2025: $542.4MQ4 2025: $626.4MQ1 2026: $874.5MQ2 2026: $1.00B
Institutions holding SBLK and their total value by quarter
QuarterHoldersValue
Q2 2026203$1.00B
Q1 2026190$874.5M
Q4 2025175$626.4M
Q3 2025166$542.4M
Q2 2025173$551.7M
Q1 2025190$567.1M
Q4 2024220$570.9M
Q3 2024223$1.08B
Q2 2024243$1.36B
Q1 2024204$951.1M
Q4 2023177$667.2M
Q3 2023151$700.7M
Q2 2023160$820.7M
Q1 2023174$1.05B
Q4 2022161$909.8M
Q3 2022164$833.6M
Q2 2022185$1.34B
Q1 2022190$1.64B
Q4 2021138$1.14B
Q3 2021120$1.33B
Q2 2021126$1.44B
Q1 202189$869.5M

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding Star Bulk Carriers Corp.; share changes are against Q3 2025.

Institutions holding SBLK in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Wells Fargo & Company28,505$547.9K0.00%−3,051−9.7%Reduced
ION Fund Management Ltd30,270$581.8K0.07%+30,270New
Glenorchy Capital Ltd30,319$582.7K0.38%+2,607+9.4%Added
Walleye Trading LLC31,045$596.7K0.01%+21,792+235.5%Added
Fox Run Management, L.L.C.33,727$648.2K0.10%+33,727New
Inceptionr LLC34,787$668.6K0.19%+34,787New
NBC Securities, Inc.38,325$736.6K0.06%00.0%Unchanged
BNP Paribas Arbitrage, SA39,884$766.6K0.00%−10,475−20.8%Reduced
MQS Management LLC40,620$780.7K0.46%+17,154+73.1%Added
HRT Financial LP44,696$859.0K0.00%+44,696New
Toroso Investments, LLC46,216$888.3K0.00%−11,469−19.9%Reduced
Advisor Group Holdings, Inc.50,182$964.6K0.00%−29,075−36.7%Reduced
Horizon Kinetics Asset Management LLC50,701$974.5K0.01%−1,222−2.4%Reduced
Marex Group plc51,954$998.6K0.01%+40,071+337.2%Added
Capital Fund Management S.A.54,292$1.04M0.01%+7,113+15.1%Added
Raiffeisen Bank International AG56,090$1.08M0.01%−7,049−11.2%Reduced
Dakota Wealth Management56,309$1.08M0.02%−4,832−7.9%Reduced
Raymond James Financial Inc56,813$1.09M0.00%+28,343+99.6%Added
UBS Asset Management Americas Inc63,097$1.21M0.00%+63,097New
Northern Trust Corp77,194$1.48M0.00%−856−1.1%Reduced
Stifel Financial Corp83,481$1.60M0.00%−17,051−17.0%Reduced
Buckland Partners Management Co LLC84,590$1.63M0.90%+84,590New
RBF Capital, LLC85,000$1.63M0.07%−3,900−4.4%Reduced
Pathstone Holdings, LLC89,312$1.72M0.01%+17,902+25.1%Added
Marshall Wace, LLP95,905$1.84M0.00%+95,905New
Mraz, Amerine & Associates, Inc.98,101$1.89M0.28%−1,586−1.6%Reduced
D. E. Shaw & Co., Inc.99,141$1.91M0.00%+99,141New
CFM Wealth Partners LLC112,601$2.16M0.31%00.0%Unchanged
Capital Advisory Group Advisory Services, LLC116,870$2.25M0.66%−1,193−1.0%Reduced
Credit Agricole S A120,600$2.32M0.01%+43,900+57.2%Added
Relyea Zuckerberg Hanson LLC125,377$2.41M0.24%00.0%Unchanged
State Street Corp127,769$2.46M0.00%+989+0.8%Added
XTX Topco Ltd130,336$2.51M0.07%+130,336New
Deutsche Bank AG136,199$2.62M0.00%+136,199New
Schonfeld Strategic Advisors LLC138,275$2.66M0.01%−55,729−28.7%Reduced
Verition Fund Management LLC143,701$2.76M0.01%+60,771+73.3%Added
KLP Kapitalforvaltning AS150,000$2.88M0.01%+150,000New
Geode Capital Management, LLC150,238$2.89M0.00%−493,554−76.7%Reduced
LPL Financial LLC154,077$2.96M0.00%−12,749−7.6%Reduced
ExodusPoint Capital Management, LP158,344$3.04M0.03%−82,651−34.3%Reduced
BlackRock, Inc.162,967$3.13M0.00%−2,185,121−93.1%Reduced
Impala Asset Management LLC167,000$3.21M2.02%+47,000+39.2%Added
Voloridge Investment Management, LLC198,109$3.81M0.01%+198,109New
Manatuck Hill Partners, LLC203,800$3.92M1.37%+110,000+117.3%Added
JPMorgan Chase & Co210,240$4.04M0.00%+110,801+111.4%Added
Group One Trading, L.P.221,973$4.27M0.13%+39,773+21.8%Added
Two Sigma Advisers, LP233,800$4.49M0.01%+233,800New
Russell Investments Group, Ltd.258,573$4.97M0.01%+76,818+42.3%Added
Armor Advisors, L.L.C.328,390$6.31M6.61%00.0%Unchanged
FIL Ltd345,040$6.63M0.00%+345,040New
Jane Street Group, LLC357,602$6.87M0.01%+341,845+2,169.5%Added
Valueworks LLC358,588$6.89M1.81%−2,990−0.8%Reduced
Marnell Management LLC361,191$6.94M5.28%+361,191New
Bank of America Corp380,725$7.32M0.00%+69,294+22.3%Added
Vanguard Group Inc441,631$8.49M0.00%+11,145+2.6%Added
Franklin Resources Inc463,275$8.90M0.00%+74,000+19.0%Added
Jump Financial, LLC476,101$9.15M0.11%+476,101New
Susquehanna International Group, LLP489,010$9.40M0.01%+68,356+16.2%Added
Two Sigma Investments, LP562,400$10.8M0.02%+562,400New
Fearnley Asset Management AS577,316$11.1M5.09%+577,316New
Bridgewater Associates, LP604,686$11.6M0.04%+526,203+670.5%Added
Goldman Sachs Group Inc635,394$12.2M0.00%+201,272+46.4%Added
Allianz Asset Management GmbH766,774$14.7M0.02%+113,792+17.4%Added
Point72 Asset Management, L.P.807,152$15.5M0.02%+807,152New
DnB Asset Management AS817,099$15.7M0.05%−9,529−1.2%Reduced
Boston Partners843,098$16.2M0.02%+682,406+424.7%Added
Millennium Management LLC887,056$17.0M0.01%+807,751+1,018.5%Added
UBS Group AG915,978$17.6M0.00%−893,724−49.4%Reduced
Colony Group, LLC1,041,252$19.4M0.02%+43,158+4.3%Added
Morgan Stanley1,094,404$21.0M0.00%−54,916−4.8%Reduced
Philosophy Capital Management LLC1,650,000$31.7M3.71%+200,000+13.8%Added
Renaissance Technologies LLC1,830,389$35.2M0.05%−101,716−5.3%Reduced
Oaktree Capital Management LPSuperinvestorOaktree Capital1,962,892$37.7M0.61%00.0%Unchanged
Ameriprise Financial Inc2,146,631$41.3M0.01%−20,261−0.9%Reduced
Alliancebernstein L.P.5,832,805$112.1M0.04%+386,614+7.1%Added
Mirabella Financial Services LLP0$00.00%−151,818−100.0%Sold out
Citadel Advisors LLC0$00.00%−103,638−100.0%Sold out
683 Capital Management, LLC0$00.00%−100,000−100.0%Sold out
Invesco Ltd.0$00.00%−54,407−100.0%Sold out
Wexford Capital LP0$00.00%−53,448−100.0%Sold out
BTG Pactual Asset Management US LLC0$00.00%−41,306−100.0%Sold out
Private Advisor Group, LLC0$00.00%−40,517−100.0%Sold out
Independent Financial Group, LLC0$00.00%−25,777−100.0%Sold out
Michels Family Financial, LLC0$00.00%−23,995−100.0%Sold out
Barclays PLC0$00.00%−23,235−100.0%Sold out
Sig Brokerage, LP0$00.00%−14,743−100.0%Sold out
Arrow Investment Advisors, LLC0$00.00%−12,360−100.0%Sold out
Bridgefront Capital, LLC0$00.00%−12,208−100.0%Sold out
Graham Capital Management, L.P.0$00.00%−10,205−100.0%Sold out
Toronto Dominion Bank0$00.00%−8,000−100.0%Sold out
SG Americas Securities, LLC0$00.00%−6,731−100.0%Sold out
Bayforest Capital Ltd0$00.00%−5,980−100.0%Sold out
Advisory Services Network, LLC0$00.00%−3,920−100.0%Sold out
Morse Asset Management, Inc0$00.00%−2,000−100.0%Sold out
Sunbelt Securities, Inc.0$00.00%−1,760−100.0%Sold out
GPS Wealth Strategies Group, LLC0$00.00%−1,400−100.0%Sold out
Parkside Financial Bank & Trust0$00.00%−1,000−100.0%Sold out
Montag A & Associates Inc0$00.00%−655−100.0%Sold out
Valley National Advisers Inc0$00.00%−631−100.0%Sold out
GWM Advisors LLC0$00.00%−316−100.0%Sold out