Tappin Matthew 4

What Happened

• Matthew Tappin, President, Software Products at STEM, reported an open-market sale of 655 shares on March 10, 2026 at $11.12 per share, totaling $7,284. On March 7, 2026, 1,458 restricted stock units (RSUs) vested and converted into common shares; those vested shares were used to satisfy tax withholding (a non‑discretionary sell-to-cover).
• The filing shows an RSU settlement (conversion of 1,458 RSUs into shares) and a related disposition of 1,458 shares for tax withholding (reported as a derivative disposition with $0 proceeds), in addition to the separate market sale of 655 shares.

Key Details

• Transaction dates: RSU vest/settlement and related derivative disposition — March 7, 2026; open‑market sale — March 10, 2026. Form 4 filed March 10, 2026.
• Sale price (open market): $11.12 per share; proceeds = $7,284 for 655 shares.
• RSU settlement: 1,458 RSUs converted one-for-one into common shares (Footnote F1); those shares were used to cover tax withholding (Footnote F2).
• Grant context: The RSUs were part of a May 28, 2024 award of 4,375 RSUs vesting in three near-equal annual installments; the second installment vested on March 7, 2026 (Footnote F3).
• Shares owned after the transactions: Not disclosed in the provided filing.
• No indication in the filing that the sell-to-cover was a discretionary market trade; the open‑market sale is a standard sale by the reporting person.

Context

• The March 7 transaction reflects an RSU vesting and settlement (conversion of RSUs into shares). The related disposition reported at $0 represents shares withheld/surrendered to cover taxes (a routine, non‑discretionary action), not an open-market sale for cash.
• The separate March 10 sale of 655 shares is an ordinary insider sale; such sales are common and do not, by themselves, indicate the insider’s view of the company.