ZHANG KER 4

What Happened

• Zhang Ker, a director of Ambiq Micro, was granted 4,957 restricted stock units (RSUs) on 2026-06-08. The Form 4 reports an acquisition at $0.00 per unit (total reported value $0), reflecting an equity award rather than a cash purchase.
• This is a non-market compensation award (transaction code A), commonly used for director compensation; the RSUs convert to common shares only as they vest.

Key Details

• Transaction date: 2026-06-08; Form 4 filed: 2026-06-10 (appears timely).
• Award: 4,957 RSUs @ $0.00 (acquisition via grant).
• Shares owned after transaction: Not specified in the filing.
• Footnote: The RSUs vest in three equal annual installments (first, second, third anniversary of grant or the company’s corresponding annual stockholder meeting if earlier), subject to the director’s continued service per the Issuer’s 2025 Equity Incentive Plan (see footnote F1).
• No tax-withholding, sale, or 10b5-1 plan noted in the filing.

Context

• RSUs are a contingent right to receive one share per unit upon vesting; they do not represent immediately tradable stock until vested and issued.
• Such grants are routine director compensation and do not by themselves indicate buying or selling sentiment.