STAR BULK CARRIERS CORP (SBLK) Institutional Shareholders
STAR BULK CARRIERS CORP (SBLK) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $1.00B in SBLK holdings during the latest filing period.
Two Sigma Investments, Lp is currently the largest disclosed institutional shareholder of SBLK tracked by InsiderSet, reporting ownership valued at approximately $88.14M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $114.66M, representing an estimated gain of +30.08% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 47% of the total disclosed SBLK value among the investors covered in this analysis. Major shareholders include Two Sigma Investments, Lp, Blackrock, Inc., Renaissance Technologies LLC, and several other long-term asset managers with concentrated positions in STAR BULK CARRIERS CORP (SBLK).
This page ranks the largest institutional SBLK shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
190
Total Reported Value
$1.00B
Largest Holder
Two Sigma Investments, Lp
Largest Position
$88.14M
Insider Transactions (90d)
9
Latest Filing Quarter
Q2 2026
New Institutional Positions
72
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Two Sigma Investments, Lp | 0.07% | 3,530,020 | $88,144,599 | $114,655,050 | +$26,510,451 | +30.08% | |
| Blackrock, Inc. | 0.00% | 2,817,294 | $70,347,831 | $91,505,709 | +$21,157,878 | +30.08% | |
| Renaissance Technologies LLC | Jim Simons | 0.07% | 2,099,637 | $52,427,936 | $68,196,210 | +$15,768,274 | +30.08% |
| Victory Capital Management Inc | 0.03% | 2,027,422 | $50,624,727 | $65,850,667 | +$15,225,940 | +30.08% | |
| Goldman Sachs Group Inc | 0.01% | 2,014,371 | $50,298,844 | $65,426,770 | +$15,127,926 | +30.08% | |
| Philosophy Capital Management Llc | 4.20% | 1,752,666 | $43,764,070 | $56,926,592 | +$13,162,522 | +30.08% | |
| Focus Partners Wealth | 0.03% | 1,263,659 | $31,553,584 | $41,043,644 | +$9,490,060 | +30.08% | |
| Qube Research & Technologies Ltd | 0.03% | 1,156,624 | $28,880,901 | $37,567,148 | +$8,686,247 | +30.08% | |
| Morgan Stanley | 0.00% | 1,040,248 | $25,975,046 | $33,787,255 | +$7,812,209 | +30.08% | |
| Fearnley Asset Management As | 9.02% | 1,004,209 | $25,075,099 | $32,616,708 | +$7,541,609 | +30.08% | |
| Encompass Capital Advisors Llc | 1.04% | 962,500 | $24,033,625 | $31,262,000 | +$7,228,375 | +30.08% | |
| Arrowstreet Capital, Limited Partnership | 0.01% | 926,378 | $23,131,659 | $30,088,757 | +$6,957,098 | +30.08% | |
| Allianz Asset Management Gmbh | 0.02% | 892,555 | $22,287,099 | $28,990,186 | +$6,703,087 | +30.08% | |
| Boston Partners | 0.02% | 788,200 | $19,685,249 | $25,600,736 | +$5,915,487 | +30.05% | |
| Acadian Asset Management Llc | 0.02% | 788,099 | $19,663,000 | $25,597,456 | +$5,934,456 | +30.18% | |
| Marshall Wace, Llp | 0.02% | 786,668 | $19,643,100 | $25,550,977 | +$5,907,877 | +30.08% | |
| Artemis Investment Management Llp | 0.17% | 761,688 | $19,019,349 | $24,739,626 | +$5,720,277 | +30.08% | |
| Marex Group Plc | 0.15% | 728,022 | $18,178,709 | $23,646,155 | +$5,467,446 | +30.08% | |
| Bridgewater Associates, Lp | 0.07% | 718,057 | $17,929,883 | $23,322,491 | +$5,392,608 | +30.08% | |
| Jpmorgan Chase & Co | 0.00% | 675,646 | $16,647,917 | $21,944,982 | +$5,297,065 | +31.82% | |
| Citadel Advisors Llc | 0.01% | 594,246 | $14,838,323 | $19,301,110 | +$4,462,787 | +30.08% | |
| D. E. Shaw & Co., Inc. | 0.01% | 591,314 | $14,765,111 | $19,205,879 | +$4,440,768 | +30.08% | |
| Dnb Asset Management As | 0.04% | 585,932 | $14,630,722 | $19,031,071 | +$4,400,349 | +30.08% | |
| Susquehanna International Group, Llp | 0.01% | 578,594 | $14,447,492 | $18,792,733 | +$4,345,241 | +30.08% | |
| Marnell Management Llc | 6.55% | 515,698 | $12,876,979 | $16,749,871 | +$3,872,892 | +30.08% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.02% | 515,000 | $12,859,550 | $16,727,200 | +$3,867,650 | +30.08% |
| Millennium Management Llc | 0.01% | 472,800 | $11,805,816 | $15,356,544 | +$3,550,728 | +30.08% | |
| Point72 Asset Management, L.P. | 0.02% | 437,815 | $10,932,241 | $14,220,231 | +$3,287,990 | +30.08% | |
| Dymon Asia Capital (Singapore) Pte. Ltd. | 1.65% | 410,700 | $10,255,179 | $13,339,536 | +$3,084,357 | +30.08% | |
| Norges Bank | 0.00% | 396,000 | $9,888,120 | $12,862,080 | +$2,973,960 | +30.08% | |
| Bank Of America Corp | 0.00% | 376,311 | $9,396,485 | $12,222,581 | +$2,826,096 | +30.08% | |
| Ubs Group Ag | 0.00% | 375,192 | $9,368,545 | $12,186,236 | +$2,817,691 | +30.08% | |
| Voloridge Investment Management, Llc | 0.04% | 367,681 | $9,180,995 | $11,942,279 | +$2,761,284 | +30.08% | |
| Valueworks Llc | 1.85% | 354,140 | $8,842,880 | $11,502,467 | +$2,659,587 | +30.08% | |
| Vanguard Portfolio Management Llc | 0.00% | 336,976 | $8,414,291 | $10,944,980 | +$2,530,689 | +30.08% | |
| Russell Investments Group, Ltd. | 0.01% | 333,897 | $8,316,144 | $10,844,975 | +$2,528,831 | +30.41% | |
| Tudor Investment Corp Et Al | 0.03% | 305,490 | $7,628,085 | $9,922,315 | +$2,294,230 | +30.08% | |
| Citigroup Inc | 0.00% | 295,189 | $7,370,870 | $9,587,739 | +$2,216,869 | +30.08% | |
| Lpl Financial Llc | 0.00% | 268,577 | $6,706,356 | $8,723,381 | +$2,017,025 | +30.08% | |
| Engineers Gate Manager Lp | 0.09% | 268,029 | $6,692,684 | $8,705,582 | +$2,012,898 | +30.08% | |
| J. Safra Sarasin Holding Ag | 0.08% | 228,694 | $5,712,183 | $7,427,981 | +$1,715,798 | +30.04% | |
| Hrt Financial Lp | 0.01% | 205,415 | $5,129,000 | $6,671,879 | +$1,542,879 | +30.08% | |
| Sprott Inc. | 0.17% | 204,784 | $5,113,456 | $6,651,384 | +$1,537,928 | +30.08% | |
| Gsa Capital Partners Llp | 0.28% | 177,968 | $4,444,000 | $5,780,401 | +$1,336,401 | +30.07% | |
| Numerai Gp Llc | 0.32% | 159,066 | $3,971,878 | $5,166,464 | +$1,194,586 | +30.08% | |
| Schonfeld Strategic Advisors Llc | 0.02% | 155,386 | $3,879,987 | $5,046,937 | +$1,166,950 | +30.08% | |
| Geode Capital Management, Llc | 0.00% | 153,810 | $3,840,635 | $4,995,749 | +$1,155,114 | +30.08% | |
| Wexford Capital Lp | 0.50% | 144,800 | $3,615,656 | $4,703,104 | +$1,087,448 | +30.08% | |
| Jane Street Group, Llc | 0.00% | 138,032 | $3,446,659 | $4,483,279 | +$1,036,620 | +30.08% | |
| Cfm Wealth Partners Llc | 0.39% | 121,072 | $3,023,168 | $3,932,419 | +$909,251 | +30.08% |
Frequently asked questions about SBLK
Who owns the most SBLK stock?
The largest holders of SBLK are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for STAR BULK CARRIERS CORP (SBLK).
Is SBLK widely held by superinvestors?
Many widely followed stocks like SBLK appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly SBLK is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.