Solid Power (SLDP) CFO Linda Heller Withholds 136,122 Shares for Taxes

What Happened

• Linda C. Heller, CFO (also Treasurer & Secretary) of Solid Power, had 136,122 shares of the company's common stock withheld to satisfy tax obligations upon the vesting of restricted stock units. The withholding was recorded at $3.08 per share, totaling approximately $418,575. This was a tax-withholding disposition (routine), not an open-market sale.

Key Details

• Transaction date: 2026-05-11; Filing date: 2026-05-12 (appears timely).
• Securities withheld/disposed: 136,122 shares at $3.08 per share; total value ≈ $418,575.
• Shares owned after transaction: not specified in this Form 4 filing.
• Footnote: F1 — shares were withheld to satisfy the reporting person's tax obligation upon RSU vesting.
• Transaction code: F (tax withholding), not a purchase (P) or sale (S) in the open market.

Context

• This was a cashless tax-withholding on RSU vesting — the company retained shares to cover taxes rather than the insider selling shares on the open market. Such transactions are routine and generally reflect tax mechanics rather than a directional view by the insider.