BIBAUD SCOTT A. 4

What Happened
Scott A. Bibaud, CEO, President and a director of Atomera Inc. (ATOM), disposed of four blocks of shares on 2026-06-01: 4,589; 5,534; 2,020; and 1,837 shares, each sold at $9.52 per share. The combined proceeds from these sales were approximately $133,089. These were sales (not purchases) and were executed to satisfy tax withholding obligations tied to previously granted restricted stock.

Key Details

• Transaction date: 2026-06-01; reporting (Form 4) filed 2026-06-02 (appears timely).
• Price: $9.52 per share for all lots.
• Shares sold: 13,980 total; proceeds ≈ $133,089.
• Shares owned after transaction: Not specified in the provided filing.
• Footnote: Sales were “sell-to-cover” transactions to satisfy mandatory, non-discretionary tax withholding on vested restricted stock, pursuant to Rule 10b5-1(c)(1)(ii)(D)(3) (reported as F1).
• Filing accession: 0001683168-26-004457 (for reference).

Context
Sell-to-cover transactions are routine tax-related sales executed to pay withholding on vested awards and do not necessarily indicate the insider’s view of the company’s prospects. Purchases typically carry more weight as a bullish signal; this filing documents a routine, tax-driven sale by the CEO.