TOP TIERMARKET NEWSWIRE
SEC Form 4 history

ZEROSTACK CORP (ZSTK) insider trades

ZEROSTACK CORP (ZSTK) insider trading activity (SEC Form 4). Over the trailing 90 days, ZSTK insiders filed 1 purchases totalling $3.5M and 0 sales totalling $0 — net BUYING of $3.5M. Most recent filing: Jul 20, 2026. Insider transactions are a Pro-tier alertable signal in the live Top Tier Newswire terminal — Form 4 filings reach the wire within minutes of acceptance by the SEC. Data shown publicly here is delayed 4 hours.

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Buys (90d)
1
$3.5M
Sells (90d)
0
$0
Net (90d)
+$3.5M
net buying
Most recent
Jul 20, 2026

Recent transactions

FiledInsiderRoleTypeSharesPriceValue
Jul 20, 2026Heinrich MichaelExec COBP Purchase$0.75$3.5Mfiling