ACM Research (ACMR) Director Charles Pappis Receives Equity Awards

What Happened Charles C. Pappis, a director of ACM Research, received two equity awards on 2026-08-12: 6,400 derivative units described as an option-like award and 728 restricted stock units (RSUs). Both awards were granted at $0.00 (no cash paid). The awards are grants (derivative acquisitions), not open‑market purchases or sales.

Key Details

• Transaction date: 2026-08-12; Form 4 filed: 2026-08-26 (appears late — see below).
• Awards: 6,400 (derivative, option-type) and 728 RSUs — total 7,128 units.
• Price: $0.00 per unit on grant (award/grant code A).
• Shares owned after transaction: Not reported in the provided filing.
• Footnotes:
  • F1: The option will vest and become exercisable immediately prior to the issuer’s 2027 annual meeting, subject to continued service.
  • F2: RSU price is based on the average closing market price for the 30 trading days before the grant.
  • F3: The RSUs vest immediately prior to the 2027 annual meeting, subject to continued service.
• Filing timeliness: The Form 4 was filed 14 days after the transaction (filed 2026-08-26 for an 2026-08-12 transaction); Form 4s are generally required within two business days, so this appears to be a late filing.

Context These were grant awards (derivative instruments) rather than purchases or sales — meaning Pappis received future equity compensation that vests subject to continued service. The option-type award will become exercisable just before the 2027 annual meeting; the RSUs will convert to shares based on the 30-day average price prior to grant when they vest. No shares were sold or bought in this filing, so it does not reflect a buy/sell trading decision by the insider.