Van Scoter John C. 4

What Happened John C. Van Scoter, President & CEO and a director of Solid Power, was awarded 1,267,828 restricted stock units (RSUs) on April 1, 2026 (grant/acquisition code A). Separately, 42,842 shares were withheld on March 31, 2026 to satisfy the reporting person's tax obligation related to vesting (tax-withholding code F); those withheld shares were recorded at $2.82 per share, totaling $120,814 (disposed). The RSU grant has no immediate cash cost to the reporting person (acquired at $0.00) and represents a contingent right to receive common stock in the future.

Key Details

• Transactions reported: 3/31/2026 — 42,842 shares withheld for taxes @ $2.82 = $120,814 (F); 4/01/2026 — 1,267,828 RSUs granted @ $0.00 = $0 (A).
• Shares owned after transaction: Not specified in the information provided in this summary/form.
• Footnotes: F1 — shares withheld to satisfy tax obligation on RSU vesting; F2 — each RSU converts to one common share and vests in 16 equal quarterly installments starting June 30, 2026, subject to continued service.
• Filing: Form 4 filed April 2, 2026 reporting period 2026-03-31; no late-filing indication in this record.

Context

• These were equity compensation events (RSU grant and tax withholding), not open-market buy/sell decisions. RSUs are contingent awards that vest over time; they do not represent immediately tradable shares until vested and delivered. The withholding of shares to cover taxes is a routine administrative step and should not be read as a discretionary sale for liquidity or investment signal.