Sievers Eric 4

What Happened

• Eric Sievers, Chief Medical Officer of BioAtla, had 3,140 shares withheld by the company on 2026-02-28 to satisfy income tax and withholding obligations related to the vesting and net settlement of previously reported restricted stock units (RSUs). The shares were recorded at $0.25 each for a total value of $776. This was a tax-withholding/net settlement action (transaction code F), not an open-market sale.

Key Details

• Transaction date: 2026-02-28; Filing date: 2026-03-02.
• Transaction: 3,140 shares withheld @ $0.25 per share; total value reported $776.
• Transaction code: F (shares withheld to satisfy tax withholding on vested awards).
• Footnote: Shares were withheld by the issuer to meet income tax and remittance obligations tied to vesting and net settlement of previously reported RSUs (per F1).
• Shares owned after the transaction: Not disclosed in the provided filing.
• Timeliness: Filing submitted 2026-03-02 for the 2026-02-28 transaction; no late-filing flag was provided in the supplied details.

Context

• This is a routine administrative action (net settlement/tax withholding) common when RSUs vest; it does not represent an active sale by the insider or a market buy. Such transactions generally do not signal a change in an insider’s market sentiment.