Form 4 Filing for Jimmy C. Duan - Officer of BLACKLINE, INC.

This filing details a transaction by Jimmy C. Duan, Chief Customer Officer of BLACKLINE, INC. On April 1, 2026, Mr. Duan acquired 41,040 shares of the company's Common Stock through the vesting of Restricted Stock Units (RSUs). These RSUs vest in stages, with 25% vesting one year after February 20, 2026, and the remaining 75% vesting in equal quarterly installments over the subsequent year. The acquisition was made at a price of $0.0 per share, and following this transaction, Mr. Duan now directly owns 123,330 shares of BLACKLINE, INC. common stock. This transaction is reported on Form 4.