Koert Erhardt
Koert Erhardt has made 1 open-market purchase worth $170k since Sep 16, 2026, in 1 company. The latest: $170k of SBLK, filed Sep 16, 2026, scored 70 out of 100.
Director, Star Bulk Carriers Corp.
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Purchases
| Filed | Stock | Stake | Score | Bought | 1 week | 1 month |
|---|---|---|---|---|---|---|
| Sep 16 Form 4 (opens sec.gov) |
SBLKStar Bulk Carriers Corp. · DirectorDirector · 8 insiders buying | +60% stake | 70 | $170k 6,000 at $28.27 |
−1.5% | −10.0% |
Track record (hypothetical): a week after the filing, these buys averaged −1.5% (0% up, 1 measured); a month after, −10.0% (0% up, 1 measured).
Sales
1 open-market sale on record
| Filed | Stock | Sold |
|---|---|---|
| Oct 7 Form 4 (opens sec.gov) |
SBLKDirector | $182k 6,000 at $30.39 · 37% of holdings |
Most insider sales are planned in advance or made for personal reasons, so a sale says less than a buy.
Questions
What stock has Koert Erhardt bought?
SBLK (Star Bulk Carriers Corp.), all on the open market and reported on SEC Form 4.
When did Koert Erhardt last buy?
Sep 16, 2026: 6,000 shares of SBLK at $28.27, $170k in all (Form 4 (opens sec.gov)).
Has Koert Erhardt filed a notice of a planned sale?
Not in the filings on record. A Form 144 is the notice an insider must file before selling restricted or control shares, and it lands on EDGAR before the sale is reported.
Is Koert Erhardt a routine or an opportunistic buyer?
There isn't enough history to say yet.
Data as of Oct 7, 2026, from SEC EDGAR Form 4 filings: open-market purchases (code P) of $25,000 or more, and open-market sales. Every row links to its filing. Scores summarise what a filing says (how the score works); outcomes are hypothetical, from the first close after the filing, and past results don't predict future ones. Disclaimer