Director Thomas Unterman Sells Shares in BlackLine, Inc.

On October 27, 2025, Thomas Unterman, a director of BlackLine, Inc., sold 910 shares of common stock at a price of $55.00 per share. This transaction was executed under a Rule 10b5-1 trading plan adopted on November 21, 2024. Following the sale, Unterman owns 41,835 shares directly and 58,636 shares indirectly through the ETU Rustic Canyon Trust. The transaction was reported in a Form 4 filing with the SEC.