Koert Erhardt
Director · Star Bulk Carriers Corp.
Individual
- 2026
- Oct 7, 2026
- 3
Filings (90d)
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Koert Erhardt files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Raffaele Zagari - $2.62B in SBLK purchases and sales in the last 12 months
- Nikolaos Reskos - $2.92M in SBLK purchases and sales in the last 12 months
- Alexandros Pappas - $2.10M in SBLK purchases and sales in the last 12 months
- Milena Maria Pappa - $2.10M in SBLK purchases and sales in the last 12 months
- Charis Plakantonaki - $1.13M in SBLK purchases and sales in the last 12 months
- Nikolaos Karellis - $596K in SBLK purchases and sales in the last 12 months
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Frequently asked questions
Who is Koert Erhardt?
Koert Erhardt is a corporate insider, tracked as Director of Star Bulk Carriers Corp. (SBLK). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Koert Erhardt submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has Koert Erhardt been buying or selling stock?
Recorded transactions: 1 open-market purchase ($170K) and 1 open-market sale ($182K) across all tracked filings.
