APPIAN CORP

The information set forth below is included herein for purposes of providing disclosure under Form 8-K.

Item 8.01 Other Events

On February 12, 2024, we entered into a Joinder and Fourth Amendment to our Credit Agreement with MUFG Bank, Ltd., Wells Fargo Bank, National Association, Comerica Bank, Customers Bank, TD Bank N.A., Scotiabank, and Silicon Valley Bank, a division of First-Citizens Bank & Trust Company (the “Fourth Amendment”), to add TD Bank, N.A. and Scotiabank as additional lenders, increase the total aggregate term loan facility to $200.0 million and revolving credit facility to $100.0 million, and amend certain covenants and definitions.

The foregoing description of the Fourth Amendment does not purport to be complete and is qualified in its entirety by reference to the Fourth Amendment, a copy of which will be filed as an exhibit to the Company’s Quarterly Report on Form 10-Q for the quarter ending March 31, 2024.

Rule 10b5-1 Trading Plans

The adoption or termination of contracts, instructions, or written plans for the purchase or sale of our securities by our Section 16 officers and directors for thethree months ended December 31, 2023, each of which is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act (“Rule 10b5-1 Plan”), were as follows:

(1) Robert Kramer, General Manager and a member of the Board of Directors, entered into a prearranged stock trading plan pursuant to Rule 10b5-1 on December 6, 2023. Mr. Kramer’s plan provides for the potential sale of up to 236,382 shares of Appian Class A common stock. The plan expires on the earlier of the completion of all authorized transactions under the plan or March 5, 2025.

Other than those disclosed above, none of our directors or officers adopted orterminated a "non-Rule 10b5-1 trading arrangement" as defined in Item 408 of Regulation S-K.