TAUTGES JOSEPH A 4

What Happened
Joseph A. Tautges, a director of Ambiq Micro, received a grant of 4,957 restricted stock units (RSUs) on 2026-06-08. The Form 4 reports the acquisition price as $0 (award), so the immediate reported cash value is $0. These RSUs are a contingent right to receive shares and are not an open-market purchase or sale.

Key Details

• Transaction date: 2026-06-08; Filed on Form 4: 2026-06-10 (timely filing).
• Transaction type/code: A (grant/award). Price reported: $0. Total reported value: $0.
• Shares/units granted: 4,957 RSUs.
• Shares owned after transaction: Not specified in the filing.
• Footnote: RSUs vest in three equal annual installments (earlier of each anniversary or corresponding annual stockholder meeting), subject to continuous service per the 2025 Equity Incentive Plan (see F1).
• No indication of a 10b5-1 plan, tax withholding, or cashless sale in this filing.

Context
RSUs represent a future right to receive common stock if vesting conditions are met; they do not create immediate market purchases or sales. Director RSU grants are a common form of compensation and will only convert to shares (and potential taxable value) as they vest.