Star Bulk Carriers Corp. (SBLK) Insider Trading
Over the last 3 months, SBLK insiders made 0 open-market buys and 9 sales, a net sale of -$3.3M (SEC Form 4). Over the last 6 months, 104 institutions increased and 110 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
9
Net (3m)
-$3.3M
Insider trades by month Buys Sells
Feb
Apr
Apr
May
Jun
Context3-month price +8.7%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 17, 2026 | Plakantonaki Charisofficer: Chief Strategy Officer | Grant | 17,200 | — |
| Jun 16, 2026 | Norton Hamishofficer: President | Grant | 35,800 | — |
| Jun 16, 2026 | Erhardt Koertdirector | Grant | 7,580 | — |
| Jun 16, 2026 | Capralos Spyridondirector | Grant | 19,500 | — |
| Jun 16, 2026 | Pappa Milena Mariadirector | Grant | 7,580 | — |
| Jun 16, 2026 | Zagari Raffaeledirector | Grant | 7,580 | — |
| Jun 16, 2026 | Karellis Nikolaosdirector | Grant | 7,580 | — |
| Jun 16, 2026 | Reskos Nikolaosofficer: Chief Operating Officer | Grant | 48,100 | — |
| Jun 16, 2026 | Balakrishnan Maheshdirector | Grant | 7,580 | — |
| Jun 16, 2026 | Vrettou Elenidirector | Grant | 7,580 | — |
| Jun 16, 2026 | Weston Garydirector | Grant | 7,580 | — |
| Jun 16, 2026 | Blystad Arnedirector | Grant | 7,580 | — |
| Jun 16, 2026 | Spyrou Symeonofficer: co CFO | Grant | 26,200 | — |
| Jun 16, 2026 | Weum Mikkel Stormdirector | Grant | 1,760 | — |
| Jun 16, 2026 | Begleris Christosofficer: co CFO | Grant | 26,200 | — |
| Jun 12, 2026 | Karellis Nikolaosdirector | Sell | 20,000 | $26.96 |
| Jun 3, 2026 | Reskos Nikolaosofficer: Chief Operating Officer | Sell | 5,000 | $28.49 |
| May 22, 2026 | Reskos Nikolaosofficer: Chief Operating Officer | Sell | 30,000 | $27.29 |
| May 22, 2026 | Reskos Nikolaosofficer: Chief Operating Officer | Sell | 9,914 | $26.55 |
| May 20, 2026 | Reskos Nikolaosofficer: Chief Operating Officer | Sell | 33,103 | $26.28 |
| May 20, 2026 | Reskos Nikolaosofficer: Chief Operating Officer | Sell | 86 | $26.49 |
| Apr 16, 2026 | Plakantonaki Charisofficer: Chief Strategy Officer | Sell | 16,500 | $24.56 |
| Apr 16, 2026 | Reskos Nikolaosofficer: COO | Sell | 8,406 | $25.05 |
| Apr 16, 2026 | Reskos Nikolaosofficer: COO | Sell | 1,594 | $25.00 |
| Apr 21, 2008 | RAMIUS CAPITAL GROUP LLC10 percent owner | Sell | 15,000 | $12.50 |
| Apr 21, 2008 | RAMIUS CAPITAL GROUP LLC10 percent owner | Sell | 20,000 | $12.59 |
| Apr 21, 2008 | C4S & CO LLC10 percent owner | Sell | 50,000 | $8.00 |
| Apr 21, 2008 | C4S & CO LLC10 percent owner | Sell | 60,000 | $8.00 |
| Apr 21, 2008 | C4S & CO LLC10 percent owner | Sell | 20,000 | $12.59 |
| Apr 21, 2008 | C4S & CO LLC10 percent owner | Sell | 15,000 | $12.50 |
Source: SBLK SEC Form 4 filings, latest Jun 17, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their SBLK positions over the last 6 months (SEC Form 13F).
Increased
104
New positions
86
Reduced
110
Sold out
59
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| ALLIANCEBERNSTEIN L.P. | Increased | 5.8M | Feb 17, 2026 |
| TWO SIGMA INVESTMENTS, LP | Increased | 3.0M | May 15, 2026 |
| AMERIPRISE FINANCIAL INC | Reduced | 2.1M | Feb 17, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 2.1M | May 14, 2026 |
| OAKTREE CAPITAL MANAGEMENT LP | Unchanged | 2.0M | Feb 17, 2026 |
| VICTORY CAPITAL MANAGEMENT INC | New Position | 1.9M | May 15, 2026 |
| PHILOSOPHY CAPITAL MANAGEMENT LLC | Increased | 1.9M | May 15, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 1.8M | Feb 12, 2026 |
| GOLDMAN SACHS GROUP INC | Increased | 1.7M | May 15, 2026 |
| PHILOSOPHY CAPITAL MANAGEMENT LLC | Increased | 1.6M | Feb 17, 2026 |
| BOSTON PARTNERS | Increased | 1.6M | May 11, 2026 |
| JANE STREET GROUP, LLC | Increased | 1.6M | May 12, 2026 |
| MORGAN STANLEY | Reduced | 1.5M | May 15, 2026 |
| MARSHALL WACE, LLP | Increased | 1.2M | May 15, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 1.2M | May 15, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.