Security record · archived quarter
SBLK
Star Bulk Carriers Corp. · Industrials · Marine Shipping
61Tracked holders
+3Δ holders
24.87MShares held
$477.43MReported value
+4New positions
−1Exits
Momentum inputs (comparable managers):
holder breadth +5.2% ·
share flow +0.7% ·
net new positions +4.9%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 66 | +5 | 27.93M | $697.06M | +9 | −3 |
| Q1 2026 | 60 | -2 | 26.78M | $614.61M | +9 | −11 |
| Q4 2025 | 61 | +3 | 24.87M | $477.43M | +4 | −1 |
| Q3 2025 | 14 | 0 | 9.51M | $176.80M | +2 | −3 |
| Q2 2025 | 12 | 0 | 8.41M | $145.10M | +1 | −1 |
| Q1 2025 | 9 | -3 | 9.60M | $149.38M | +1 | −4 |
| Q4 2024 | 12 | 0 | 14.02M | $209.62M | n/a | n/a |
| Q3 2024 | 11 | 0 | 14.93M | $353.71M | n/a | n/a |
| Q2 2024 | 11 | n/a | 20.05M | $488.82M | n/a | n/a |
Who holds it · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Alliancebernstein L.P. | 5.83M | n/a | $112.11M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | Ameriprise Financial Inc | 2.15M | n/a | $41.26M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 3 | Oaktree Capital Management ✦ | 1.96M | 0.0% | $37.73M | 0.8% | Held | 7 | SEC ↗ |
| 4 | Renaissance Technologies ✦ | 1.83M | -5.3% | $35.18M | 0.1% | ▼ Trim | 7 | SEC ↗ |
| 5 | Morgan Stanley ✦ | 1.09M | -4.8% | $21.03M | 0.0% | ▼ Trim | 2 | SEC ↗ ×8 |
| 6 | Focus Partners Wealth | 1.04M | n/a | $19.39M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | UBS Group AG | 915.98K | n/a | $17.61M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 8 | Millennium Management ✦ | 887.06K | +1018.5% | $17.05M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 9 | Boston Partners | 843.10K | n/a | $16.21M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | Point72 Asset Management ✦ | 807.15K | New | $15.51M | 0.0% | New | 1 | SEC ↗ |
| 11 | Allianz Asset Management GmbH | 766.77K | n/a | $14.74M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | Goldman Sachs Group ✦ | 635.39K | +46.4% | $12.21M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 13 | Bridgewater Associates ✦ | 604.69K | +670.5% | $11.62M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | Two Sigma Investments ✦ | 562.40K | New | $10.81M | 0.0% | New | 1 | SEC ↗ |
| 15 | Susquehanna International Group, Llp | 489.01K | n/a | $9.40M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | Franklin Resources Inc | 463.27K | n/a | $8.90M | 0.0% | n/c | 1 | SEC ↗ |
| 17 | The Vanguard Group ✦ (passive) | 441.63K | +2.6% | $8.49M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 18 | Bank Of America Corp /De/ | 380.73K | n/a | $7.32M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 19 | Jane Street Group, Llc | 357.60K | n/a | $6.87M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 20 | FIL Ltd | 345.04K | n/a | $6.63M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | Russell Investments Group, Ltd. | 258.57K | n/a | $4.97M | 0.0% | n/c | 1 | SEC ↗ ×10 |
| 22 | Group One Trading Llc | 221.97K | n/a | $4.27M | 0.1% | n/c | 1 | SEC ↗ |
| 23 | JPMorgan Chase ✦ | 210.24K | +5.7% | $4.04M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 24 | BlackRock ✦ (passive) | 162.97K | -93.1% | $3.13M | 0.0% | ▼ Trim | 3 | SEC ↗ ×8 |
| 25 | LPL Financial LLC | 154.08K | n/a | $2.96M | 0.0% | n/c | 1 | SEC ↗ |
| 26 | Geode Capital Management ✦ (passive) | 150.24K | -76.7% | $2.89M | 0.0% | ▼ Trim | 7 | SEC ↗ |
| 27 | Deutsche Bank Ag\ | 136.20K | n/a | $2.62M | 0.0% | n/c | 1 | SEC ↗ |
| 28 | State Street Global Advisors ✦ (passive) | 127.77K | +0.8% | $2.46M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 29 | Credit Agricole S A | 120.60K | n/a | $2.32M | 0.0% | n/c | 1 | SEC ↗ |
| 30 | D. E. Shaw & Co. ✦ | 99.14K | New | $1.91M | 0.0% | New | 1 | SEC ↗ |
| 31 | Marshall Wace ✦ | 95.91K | New | $1.84M | 0.0% | New | 1 | SEC ↗ ×2 |
| 32 | Stifel Financial Corp | 83.48K | n/a | $1.60M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | Northern Trust Corp | 77.19K | n/a | $1.48M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 34 | UBS AM, a distinct business unit of… | 63.10K | n/a | $1.21M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 35 | Raymond James Financial Inc | 56.81K | n/a | $1.09M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 36 | Osaic Holdings, Inc. | 50.18K | n/a | $964,620 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 37 | Tidal Investments LLC | 46.22K | n/a | $888,272 | 0.0% | n/c | 1 | SEC ↗ |
| 38 | Hrt Financial Lp | 44.70K | n/a | $859,000 | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Bnp Paribas Financial Markets | 39.88K | n/a | $766,570 | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Walleye Trading LLC | 31.05K | n/a | $596,685 | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Wells Fargo & Company/Mn | 28.50K | n/a | $547,875 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 42 | IMC-Chicago, LLC | 27.59K | n/a | $530,203 | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Simplex Trading, Llc | 26.64K | n/a | $512,059 | 0.0% | n/c | 1 | SEC ↗ |
| 44 | Royal Bank Of Canada | 26.69K | n/a | $512,000 | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 45 | Gotham Asset Management ✦ | 21.60K | 0.0% | $415,152 | 0.0% | Held | 4 | SEC ↗ |
| 46 | American Century Companies Inc | 19.92K | n/a | $382,901 | 0.0% | n/c | 1 | SEC ↗ |
| 47 | Mariner, LLC | 17.47K | n/a | $335,847 | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Balyasny Asset Management L.P. | 12.98K | n/a | $249,437 | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Commonwealth Equity Services, Llc | 12.40K | n/a | $238,308 | 0.0% | n/c | 1 | SEC ↗ |
| 50 | Cetera Investment Advisers | 12.31K | n/a | $236,607 | 0.0% | n/c | 1 | SEC ↗ |
| 51 | Citigroup Inc | 10.32K | n/a | $198,331 | 0.0% | n/c | 1 | SEC ↗ |
| 52 | Legal & General Group Plc | 5.08K | n/a | $97,561 | 0.0% | n/c | 1 | SEC ↗ |
| 53 | Us Bancorp \De\ | 3.07K | n/a | $59,082 | 0.0% | n/c | 1 | SEC ↗ |
| 54 | Northwestern Mutual Wealth… | 2.64K | n/a | $50,722 | 0.0% | n/c | 1 | SEC ↗ |
| 55 | Nomura Asset Management Co Ltd | 2.50K | n/a | $48,050 | 0.0% | n/c | 1 | SEC ↗ |
| 56 | Jones Financial Companies Lllp | 1.62K | n/a | $31,188 | 0.0% | n/c | 1 | SEC ↗ |
| 57 | Rhumbline Advisers | 1.13K | n/a | $21,735 | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Fidelity (FMR) ✦ | 945 | 0.0% | $18,163 | 0.0% | Held | 3 | SEC ↗ |
| 59 | National Bank Of Canada /Fi/ | 250 | n/a | $4,800 | 0.0% | n/c | 1 | SEC ↗ |
| 60 | Pacer Advisors, Inc. | 235 | n/a | $4,517 | 0.0% | n/c | 1 | SEC ↗ |
| 61 | Rockefeller Capital Management L.P. | 195 | n/a | $3,748 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Point72 Asset Management | $15.51M | 0.0% |
| Two Sigma Investments | $10.81M | 0.0% |
| D. E. Shaw & Co. | $1.91M | 0.0% |
| Marshall Wace | $1.84M | 0.0% |
Exited
| Citadel Advisors | $1.93M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 186 holders, 37.42M shares, $814.50M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
Oct 13
Zagari Raffaele
Director · 0 sh · n/a
Sep 15
Karellis Nikolaos
Director · 2.00K sh @ 28.27 · $56,540
Sep 15
Erhardt Koert
Director · 6.00K sh @ 28.27 · $169,620
Open-market sales (S)
Oct 13
Zagari Raffaele
Director · 7.58K sh · $227,400
Oct 05
Erhardt Koert
Director · 6.00K sh · $182,340
Sep 21
Vrettou Eleni
Director · 3.50K sh · $112,420
Sep 18
Balakrishnan Mahesh
Director · 10.00K sh · $323,400
Aug 25
Zagari Raffaele
Director · 50.00K sh · $1.56M
Aug 24
Zagari Raffaele
Director · 50.00K sh · $1.53M
Aug 17
Plakantonaki Charis
Officer · 10.82K sh · $322,803
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q4 2025 ·
Methodology ·
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