Star Bulk Carriers Corp. (SBLK) Insider Trading

8 insiders at Star Bulk Carriers Corp. (SBLK) have purchased stock in the past 90 days, totaling $6.9M across 9 transactions (244,800 shares).

The most recent purchase was by Director Erhardt Koert on September 15, 2026 — a $170K buy of 6,000 shares at $28.27, bringing his total holdings to 16,080 shares.

Insiders who purchased: Pappa Milena Maria (Director, 1 buy totaling $2.1M); Pappas Alexandros (Other, 1 buy totaling $2.1M); Zagari Raffaele (Director, 2 buys totaling $1.7M); Spyrou Symeon (CFO, 1 buy totaling $424K); Reskos Nikolaos (COO, 1 buy totaling $283K); Erhardt Koert (Director, 1 buy totaling $170K); Plakantonaki Charis (Chief Strategy Officer, 1 buy totaling $85K); Karellis Nikolaos (Director, 1 buy totaling $57K).

This insider buying is notable given that SBLK had no recorded open market purchases in the nine months before that.

SBLK is in the Marine sector within the Marine industry with a market cap of $3.3B.

With 8 different insiders buying in the same 90-day window, this qualifies as cluster buying at SBLK — a pattern that research suggests can signal conviction among management.

Track SBLK insider trading activity, set up email alerts, and get AI-powered trade analysis with a free Insider Trading Tracker account.