Form4insider filings, from the source

Insider · CIK 0001986259

Matthew Tappin

Files at: STEM. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $7,819 · 1net −$7,819
$10k$10k$100k$100k$1M$1MbuyssalesJul 1Jul 1Jul 1Jul 2Jul 2Jul 2Jul 3

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Jul 2, 2026 SForm 4 →Jul 2, 6:57 pm EDTSTEM, INC.STEM996$7.85$7,8199,577−9.42%
Jun 30, 2026 MForm 4 →Jul 2, 6:57 pm EDTSTEM, INC.STEM7,750$7.81$60,52810,573—

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Jun 30, 2026 MForm 4 →Jul 2, 6:57 pm EDTSTEM, INC.STEM7,750——5,000—