Company · Ownership research

Star Bulk Carriers Corp. SBLK

CIK 0001386716

Form 4 transactions dated Sep 1, 2023 to Sep 25, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through 2026-08-26.

Some amendments were merged by Akkru's inferred matching; tick "Confirmed merges only" to exclude these rows.

Insider purchases & sales

Purchased: $0.00
Sold: $7.58M

Sep 1, 2023 – Aug 26, 2026
Available records · partial months are marked ·

202610 of 17 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
2026-08-25	Zagari Raffaele Director	Sale	$1.56M 50,000 shares sold	2.56% sold Indirect holding	▾
2026-08-24	Zagari Raffaele Director	Sale	$1.53M 50,000 shares sold	Unavailable Indirect holding	▾
2026-08-17	Plakantonaki Charis Chief Strategy Officer	Sale	$322.80K 10,825 shares sold	16.25% sold Direct holding	▾
2026-08-14	Plakantonaki Charis Chief Strategy Officer	Sale	$313.42K 10,825 shares sold	13.98% sold Direct holding	▾
2026-08-06	Reskos Nikolaos Chief Operating Officer	Sale	$147.50K 5,000 shares sold	1.23% sold Direct holding	▾
2026-07-30	Reskos Nikolaos Chief Operating Officer	Sale	$144.95K 5,000 shares sold	1.22% sold Direct holding	▾
2026-06-12	Blystad Arne Director	Purchase	$0.00 7,580 shares bought	7.02% added Direct holding	▾
2026-06-11	Karellis Nikolaos Director	Sale	$539.20K 20,000 shares sold	100.00% sold Direct holding	▾
2026-06-01	Reskos Nikolaos Chief Operating Officer	Sale	$142.45K 5,000 shares sold	1.36% sold Direct holding	▾
2026-05-21	Reskos Nikolaos Chief Operating Officer	Sale	$818.70K 30,000 shares sold	7.54% sold Direct holding	▾

Showing 17 / 17 record groups in 2026. The complete set is available through the API.

Star Bulk Carriers Corp. · SBLK

Follow the people behind the trades.

Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and reach other datasets through the Akkru API.

Download CSV
Earlier filings
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 17 of 17 purchase / sale groups and 15 of 15 other groups; the totals and the monthly series cover the whole window.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.

MCP  https://api.akkrudata.ai/mcp

list_insider_transactions
{"ticker":"SBLK","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP documentation: /documents
llms.txt: /llms.txt

Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.