Insider record · § Exec
COB Heinrich Michael insider buys
Every disclosed SEC Form 4 open-market purchase by COB Heinrich Michael (Exec · ZSTK), with the stock's move after each filing. Disclosures are public record; returns are informational, not investment advice.
Disclosed buys
1
Total bought
$3.5M
Avg Δ7d
−13.9%
Win rate · 7d
0%
Avg Δ30d
+200.6%
Last filing
2026-07-20
Buy history
| Filed | Ticker | Company | Value | Price @ | Δ1d | Δ7d | Δ30d |
|---|---|---|---|---|---|---|---|
| 2026-07-20 | ZSTK | Zerostack Corp. | $3.5M | $1.65 | +0.0% | −13.9% | +200.6% |