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Koert Erhardt (Director) filed 2 Form 4 reports in the trailing twelve months (1 purchase, 1 sale), most often in Star Bulk Carriers Corp. (SBLK). Across 1 priced purchase filing, the average 21-session return was -2.5% from execution and -6.5% from disclosure (delay-adjusted; derived). The largest single filing was $182K of SBLK (6,000 sh × $30.39, as filed), executed Oct 5. Data as of Nov 8 2026.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
-2.5%
avg across 1 priced filings
Delay-adjustediThe same average, entered at disclosure dates
-6.5%
same 1 filings, from disclosure
Filings, ttm
2
1 buys · 1 sells
Median delay
1d
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$352K
shares × price, as filed
Last traded
Oct 5
Filed Oct 7
Median ADV $38.1M across their filed names
Open performance→Volume by month
Buys $170K
Sells $182K
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Industrials
2 filings
Sector per market data · by filing · past 12 months
Most traded names
SBLKRecent filings
SBLKSALE
Star Bulk Carriers Corp.
View filing →
$182K6,000 sh × $30.39
Exec Oct 5
Filed Oct 7 · 10:08 AM ET SBLKPURCHASE Star Bulk Carriers Corp. View filing → $170K
6,000 sh × $28.27
Exec Sep 15
Filed Sep 16 · 11:02 AM ET