Form4insider filings, from the source

Insider · CIK 0002093136

Michael Heinrich

Files at: ZSTK. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $3.5M · 1sales $0 · 0net $3.5M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesJul 19Jul 19Jul 19Jul 20Jul 20Jul 20Jul 21

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Jul 20, 2026 PForm 4 →Jul 20, 6:31 pm EDTZeroStack Corp.ZSTK4,608,575$0.7549$3,479,0134,608,575—

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Jul 20, 2026 AForm 4 →Jul 20, 6:31 pm EDTZeroStack Corp.ZSTK500,000——500,000—