Star Bulk Carriers Corp. (SBLK) has 19 known insider and institutional holders on record. The largest holder is Reskos Nikolaos with 450,878 shares. Other notable holders include RAMIUS CAPITAL GROUP LLC and C4S & CO LLC.
Over the last 12 months, insiders have made 19 transactions in SBLK stock — 2 buys (valued at $2.62B) and 0 sells (valued at RSU Award). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
SBLK Insider Ownership
Top Holder
Reskos Nikolaos
450,878 shares
Buys (12 mo)
2
$2.62B value
Sells (12 mo)
0
$0.00 value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Reskos Nikolaos |
Chief Operating Officer |
450,878 |
2026-03-16 |
|
| 2 |
Ramius Capital Group Llc |
10 Percent Owner |
315,000 |
2008-04-21 |
|
| 3 |
C4s & Co Llc |
10 Percent Owner |
315,000 |
2008-04-21 |
|
| 4 |
Capralos Spyridon |
Director |
118,270 |
2026-03-16 |
|
| 5 |
Blystad Arne |
Director |
107,953 |
2026-03-16 |
|
| 6 |
Plakantonaki Charis |
Chief Strategy Officer |
76,728 |
2026-03-16 |
|
| 7 |
Vrettou Eleni |
Director |
69,606 |
2026-03-16 |
|
| 8 |
Begleris Christos |
Co CFO |
39,978 |
2026-03-16 |
|
| 9 |
Balakrishnan Mahesh |
Director |
31,500 |
2026-03-13 |
|
| 10 |
Zagari Raffaele |
Director |
31,500 |
2026-04-01 |
|
| 11 |
Spyrou Symeon |
Co CFO |
30,028 |
2026-03-16 |
|
| 12 |
Karellis Nikolaos |
Director |
20,000 |
2026-03-16 |
|
| 13 |
Huseman Kenneth V |
Director |
10,000 |
2003-05-20 |
|
| 14 |
Norton Hamish |
President |
4,125 |
2026-03-18 |
|
| 15 |
Benacerraf Ari J |
Director |
4,000 |
2004-06-01 |
|
| 16 |
Weston Gary |
Director |
3,902 |
2026-03-16 |
|
| 17 |
Pappas Alexandros |
Other: Head of Operations |
3,000 |
2026-03-17 |
|
| 18 |
Pappa Milena Maria |
Director |
3,000 |
2026-03-17 |
|
| 19 |
Erhardt Koert |
Director |
2,500 |
2026-03-16 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-31 |
Zagari Raffaele |
Director |
Informative Buy |
11,500 |
$22.75 |
$261.67K |
| 2026-03-31 |
Zagari Raffaele |
Director |
Informative Buy |
11,500 |
$227,538.00 |
$2.62B |
| 2026-03-31 |
Zagari Raffaele |
Director |
Unknown |
- |
- |
- |
| 2026-03-18 |
Norton Hamish |
President |
Unknown |
- |
- |
- |
| 2026-03-18 |
Pappas Petros |
Director |
Unknown |
- |
- |
- |
| 2026-03-17 |
Pappa Milena Maria |
Director |
Unknown |
- |
- |
- |
| 2026-03-17 |
Pappas Alexandros |
Other: Head of Operations |
Unknown |
- |
- |
- |
| 2026-03-17 |
Zagari Raffaele |
Director |
Unknown |
- |
- |
- |
| 2026-03-16 |
Blystad Arne |
Director |
Unknown |
- |
- |
- |
| 2026-03-16 |
Vrettou Eleni |
Director |
Unknown |
- |
- |
- |
| 2026-03-16 |
Karellis Nikolaos |
Director |
Unknown |
- |
- |
- |
| 2026-03-16 |
Capralos Spyridon |
Director |
Unknown |
- |
- |
- |
| 2026-03-16 |
Plakantonaki Charis |
Chief Strategy Officer |
Unknown |
- |
- |
- |
| 2026-03-16 |
Spyrou Symeon |
Co CFO |
Unknown |
- |
- |
- |
| 2026-03-16 |
Begleris Christos |
Co CFO |
Unknown |
- |
- |
- |
| 2026-03-16 |
Reskos Nikolaos |
Chief Operating Officer |
Unknown |
- |
- |
- |
| 2026-03-16 |
Weston Gary |
Director |
Unknown |
- |
- |
- |
| 2026-03-16 |
Erhardt Koert |
Director |
Unknown |
- |
- |
- |
| 2026-03-13 |
Balakrishnan Mahesh |
Director |
Unknown |
- |
- |
- |
