InsiderCIK 1333848

Koert Erhardt: Insider Trades

Every open-market purchase and sale Koert Erhardt reported on Form 4 since Aug 13, 2026, with how the stock moved after each purchase.

SBLK Star Bulk Carriers Corp. · Director

1Purchases

$170KBought

1Sales

$182KSold

Track record of purchases

Not enough time has passed, or price data is missing, to measure these purchases yet.

Change in the stock price from the price paid to the closest weekly price about 1, 3 and 6 months later, from SEC fails-to-deliver data. Dividends are not included, and purchases with a possible stock split in between are skipped. Past results do not predict future ones. How we measure this

All reported trades

Trades by Koert Erhardt
Filed	Traded	Ticker	Role	Type	Shares	Price ($)	Value	Holding	3 mo. after	Filing
Oct 7	Oct 5	SBLK	Director	▼ SELL	6,000	30.39	$182K	−37%		Form 4 ↗
Sep 16	Sep 15	SBLK	Director	▲ BUY	6,000	28.27	$170K	+60%		Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings

Names come from the filings. Different people can share a name, so we group trades by the SEC's reporting-owner number (CIK) instead.