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, Q1 2026
Institutional positions in Star Bulk Carriers Corp. as of Mar 31, 2026. 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
- 190
- +19 vs. Q4 2025
- Shares held
- 38.1M
- +5.94M (+18.5%) vs. Q4 2025
- Total value
- $874.5M
- +$256.9M (+41.6%) vs. Q4 2025
- New holders
- 50
- 58 more added
- Sold out
- 31
- 53 more reduced
4 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 203 | $1.00B |
| Q1 2026 | 190 | $874.5M |
| Q4 2025 | 175 | $626.4M |
| Q3 2025 | 166 | $542.4M |
| Q2 2025 | 173 | $551.7M |
| Q1 2025 | 190 | $567.1M |
| Q4 2024 | 220 | $570.9M |
| Q3 2024 | 223 | $1.08B |
| Q2 2024 | 243 | $1.36B |
| Q1 2024 | 204 | $951.1M |
| Q4 2023 | 177 | $667.2M |
| Q3 2023 | 151 | $700.7M |
| Q2 2023 | 160 | $820.7M |
| Q1 2023 | 174 | $1.05B |
| Q4 2022 | 161 | $909.8M |
| Q3 2022 | 164 | $833.6M |
| Q2 2022 | 185 | $1.34B |
| Q1 2022 | 190 | $1.64B |
| Q4 2021 | 138 | $1.14B |
| Q3 2021 | 120 | $1.33B |
| Q2 2021 | 126 | $1.44B |
| Q1 2021 | 89 | $869.5M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Star Bulk Carriers Corp.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| R Squared Ltd | 25,293 | $581.0K | 0.32% | +25,293 | New |
| Group One Trading, L.P. | 25,526 | $586.3K | 0.02% | −196,447−88.5% | Reduced |
| Mangrove Partners | 26,864 | $617.1K | 0.05% | +15,573+137.9% | Added |
| ION Fund Management Ltd | 30,270 | $695.3K | 0.11% | 00.0% | Unchanged |
| FIL Ltd | 32,583 | $748.4K | 0.00% | −312,457−90.6% | Reduced |
| Balyasny Asset Management LLC | 32,870 | $755.0K | 0.00% | +19,892+153.3% | Added |
| NBC Securities, Inc. | 35,425 | $813.7K | 0.06% | −2,900−7.6% | Reduced |
| Centiva Capital, LP | 36,843 | $846.3K | 0.04% | +36,843 | New |
| Magnetar Financial LLC | 37,292 | $856.6K | 0.01% | +17,291+86.5% | Added |
| Glenorchy Capital Ltd | 38,746 | $890.0K | 0.48% | +8,427+27.8% | Added |
| HSBC Holdings PLC | 40,100 | $909.1K | 0.00% | +40,100 | New |
| Ameriprise Financial Inc | 39,854 | $915.5K | 0.00% | −2,106,777−98.1% | Reduced |
| Dynamic Technology Lab Private Ltd | 43,322 | $995.1K | 0.16% | +43,322 | New |
| Pathstone Holdings, LLC | 43,478 | $998.7K | 0.00% | −45,834−51.3% | Reduced |
| BTG Pactual Asset Management US LLC | 51,584 | $1.18M | 0.12% | +51,584 | New |
| Horizon Kinetics Asset Management LLC | 51,770 | $1.19M | 0.01% | +1,069+2.1% | Added |
| Dakota Wealth Management | 52,392 | $1.20M | 0.03% | −3,917−7.0% | Reduced |
| Raiffeisen Bank International AG | 52,578 | $1.21M | 0.02% | −3,512−6.3% | Reduced |
| Raymond James Financial Inc | 54,675 | $1.26M | 0.00% | −2,138−3.8% | Reduced |
| Fox Run Management, L.L.C. | 64,344 | $1.42M | 0.25% | +30,617+90.8% | Added |
| Relyea Zuckerberg Hanson LLC | 64,390 | $1.48M | 0.15% | −60,987−48.6% | Reduced |
| Cetera Investment Advisers | 65,307 | $1.50M | 0.00% | +52,997+430.5% | Added |
| Headlands Technologies LLC | 65,815 | $1.51M | 0.17% | +43,369+193.2% | Added |
| Vanguard Capital Management LLC | 68,611 | $1.58M | 0.00% | +68,611 | New |
| Toroso Investments, LLC | 69,331 | $1.59M | 0.00% | +23,115+50.0% | Added |
| Stifel Financial Corp | 74,243 | $1.71M | 0.00% | −9,238−11.1% | Reduced |
| Graham Capital Wealth Management, LLC | 74,551 | $1.71M | 1.52% | +74,551 | New |
| Artemis Investment Management LLP | 75,773 | $1.74M | 0.02% | +75,773 | New |
| Northern Trust Corp | 76,596 | $1.76M | 0.00% | −598−0.8% | Reduced |
| Squarepoint Ops LLC | 81,292 | $1.87M | 0.00% | +81,292 | New |
| Dymon Asia Capital (Singapore) Pte. Ltd. | 82,000 | $1.88M | 0.41% | +82,000 | New |
| Buckland Partners Management Co LLC | 84,590 | $1.94M | 1.18% | 00.0% | Unchanged |
| RBF Capital, LLC | 85,000 | $1.95M | 0.10% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 97,097 | $2.23M | 0.00% | +57,213+143.4% | Added |
| Mraz, Amerine & Associates, Inc. | 97,991 | $2.25M | 0.33% | −110−0.1% | Reduced |
| Winton Group Ltd | 105,589 | $2.43M | 0.09% | +105,589 | New |
| CFM Wealth Partners LLC | 114,425 | $2.63M | 0.39% | +1,824+1.6% | Added |
| Aquatic Capital Management LLC | 115,477 | $2.65M | 0.08% | +115,477 | New |
| State Street Corp | 115,546 | $2.65M | 0.00% | −12,223−9.6% | Reduced |
| Impala Asset Management LLC | 120,000 | $2.76M | 1.28% | −47,000−28.1% | Reduced |
| Marex Group plc | 126,024 | $2.89M | 0.03% | +74,070+142.6% | Added |
| Manatuck Hill Partners, LLC | 133,800 | $3.07M | 1.01% | −70,000−34.3% | Reduced |
| KLP Kapitalforvaltning AS | 140,000 | $3.22M | 0.01% | −10,000−6.7% | Reduced |
| ExodusPoint Capital Management, LP | 140,162 | $3.22M | 0.03% | −18,182−11.5% | Reduced |
| Numerai GP LLC | 143,054 | $3.29M | 0.33% | +143,054 | New |
| Y-Intercept (Hong Kong) Ltd | 144,945 | $3.33M | 0.06% | +144,945 | New |
| Hartree Partners, LP | 150,000 | $3.45M | 0.75% | +150,000 | New |
| Geode Capital Management, LLC | 154,107 | $3.54M | 0.00% | +3,869+2.6% | Added |
| Schonfeld Strategic Advisors LLC | 156,027 | $3.58M | 0.03% | +17,752+12.8% | Added |
| Campbell & CO Investment Adviser LLC | 183,453 | $4.21M | 0.24% | +183,453 | New |
| UBS Group AG | 203,892 | $4.68M | 0.00% | −712,086−77.7% | Reduced |
| Counterpoint Mutual Funds LLC | 208,427 | $4.79M | 0.72% | +208,427 | New |
| Jump Financial, LLC | 219,485 | $5.04M | 0.07% | −256,616−53.9% | Reduced |
| Gsa Capital Partners LLP | 269,776 | $6.20M | 0.39% | +269,776 | New |
| LPL Financial LLC | 272,763 | $6.27M | 0.00% | +118,686+77.0% | Added |
| Susquehanna International Group, LLP | 284,567 | $6.54M | 0.01% | −204,443−41.8% | Reduced |
| Walleye Capital LLC | 287,273 | $6.60M | 0.04% | +277,744+2,914.7% | Added |
| XTX Topco Ltd | 306,770 | $7.05M | 0.12% | +176,434+135.4% | Added |
| Engineers Gate Manager LP | 313,107 | $7.19M | 0.09% | +313,107 | New |
| Vanguard Portfolio Management LLC | 349,404 | $8.03M | 0.00% | +349,404 | New |
| Valueworks LLC | 354,861 | $8.15M | 2.22% | −3,727−1.0% | Reduced |
| Russell Investments Group, Ltd. | 379,452 | $8.72M | 0.01% | +120,879+46.7% | Added |
| Citadel Advisors LLC | 411,249 | $9.45M | 0.01% | +411,249 | New |
| Marnell Management LLC | 430,282 | $9.88M | 6.57% | +69,091+19.1% | Added |
| Voloridge Investment Management, LLC | 522,548 | $12.0M | 0.05% | +324,439+163.8% | Added |
| Jane Street Group, LLC | 550,289 | $12.6M | 0.01% | +192,687+53.9% | Added |
| Bridgewater Associates, LP | 551,329 | $12.7M | 0.06% | −53,357−8.8% | Reduced |
| Bank of America Corp | 565,562 | $13.0M | 0.00% | +184,837+48.5% | Added |
| BlackRock, Inc. | 600,495 | $13.8M | 0.00% | +437,528+268.5% | Added |
| JPMorgan Chase & Co | 652,545 | $14.4M | 0.00% | +442,305+210.4% | Added |
| Millennium Management LLC | 719,501 | $16.5M | 0.01% | −167,555−18.9% | Reduced |
| Tudor Investment Corp Et Al | 735,010 | $16.9M | 0.09% | +735,010 | New |
| DnB Asset Management AS | 743,785 | $17.1M | 0.06% | −73,314−9.0% | Reduced |
| Arrowstreet Capital, Limited Partnership | 757,426 | $17.4M | 0.01% | +757,426 | New |
| HRT Financial LP | 771,227 | $17.7M | 0.04% | +726,531+1,625.5% | Added |
| Point72 Asset Management, L.P. | 789,935 | $18.1M | 0.03% | −17,217−2.1% | Reduced |
| Allianz Asset Management GmbH | 799,441 | $18.4M | 0.02% | +32,667+4.3% | Added |
| Cooper Creek Partners Management LLC | 866,033 | $19.9M | 0.96% | +866,033 | New |
| Fearnley Asset Management AS | 951,206 | $21.8M | 7.14% | +373,890+64.8% | Added |
| Qube Research & Technologies Ltd | 1,086,842 | $25.0M | 0.04% | +1,086,842 | New |
| Colony Group, LLC | 1,139,823 | $26.2M | 0.03% | +98,571+9.5% | Added |
| D. E. Shaw & Co., Inc. | 1,173,877 | $27.0M | 0.02% | +1,074,736+1,084.0% | Added |
| Marshall Wace, LLP | 1,216,937 | $28.0M | 0.03% | +1,121,032+1,168.9% | Added |
| Morgan Stanley | 1,534,705 | $35.3M | 0.00% | +440,301+40.2% | Added |
| Boston Partners | 1,626,444 | $37.4M | 0.04% | +783,346+92.9% | Added |
| Goldman Sachs Group Inc | 1,737,933 | $39.9M | 0.01% | +1,102,539+173.5% | Added |
| Philosophy Capital Management LLC | 1,874,418 | $43.1M | 5.02% | +224,418+13.6% | Added |
| Victory Capital Management Inc | 1,920,289 | $44.1M | 0.03% | +1,920,289 | New |
| Renaissance Technologies LLC | 2,067,637 | $47.5M | 0.07% | +237,248+13.0% | Added |
| Two Sigma Investments, LP | 3,012,963 | $69.2M | 0.06% | +2,450,563+435.7% | Added |
| Alliancebernstein L.P. | 0 | $0 | 0.00% | −5,832,805−100.0% | Sold out |
| Oaktree Capital Management LPSuperinvestorOaktree Capital | 0 | $0 | 0.00% | −1,962,892−100.0% | Sold out |
| Franklin Resources Inc | 0 | $0 | 0.00% | −463,275−100.0% | Sold out |
| Armor Advisors, L.L.C. | 0 | $0 | 0.00% | −328,390−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −233,800−100.0% | Sold out |
| Deutsche Bank AG | 0 | $0 | 0.00% | −136,199−100.0% | Sold out |
| Credit Agricole S A | 0 | $0 | 0.00% | −120,600−100.0% | Sold out |
| Capital Advisory Group Advisory Services, LLC | 0 | $0 | 0.00% | −116,870−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −34,787−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −31,045−100.0% | Sold out |