BlackLine CAO Michelle Stalick Stock Dispositions for Tax Withholding

This Form 4 filing reports that Michelle D. Stalick, Chief Accounting Officer of BlackLine, Inc., disposed of 871 shares of common stock on May 20, 2026, for tax withholding purposes. The shares were withheld to cover tax liabilities in connection with the vesting of restricted stock units. The transactions occurred at a price of $30.84 per share across four separate dispositions (143, 161, 266, and 301 shares). Following these transactions, Stalick's total holdings decreased to 37,143 shares. The filing includes a footnote indicating that 459 shares were previously acquired on May 8, 2026, through the company's Employee Stock Purchase Plan under Rule 16b-3 exemptions.