Form 4 Filing for Blackline, Inc.

This filing details transactions by Jimmy C. Duan, Chief Customer Officer of Blackline, Inc. On May 20, 2026, Mr. Duan disposed of 1,190 shares of common stock, withheld to cover tax liabilities from vested restricted stock units, at a price of $30.84 per share. Additionally, 751 shares were disposed of on the same date for the same reason, also at $30.84 per share. Following these transactions, Mr. Duan holds 122,599 shares directly. The filing also notes the acquisition of 459 shares on May 8, 2026, through the Employee Stock Purchase Plan, which is exempt under Rule 16b-3(d) and Rule 16b-3(c).