ENANTA PHARMACEUTICALS INC

ITEM 5. OTHER INFORMATION

Rule 10b5-1 Trading Arrangements. During the three months ended March 31, 2024, the following officers (as defined in Rule 16a-1(f) under the Exchange Act) of the Company adopted a “Rule 10b5-1 trading arrangement” as that term is defined in Item 408(a) of Regulation S-K, all of which were entered into during an open trading window in accordance with the Company’s Securities Trading Policy and all of which were intended to satisfy Rule 10b5-1(c):

•

On March 14, 2024, Tara L. Kieffer, Ph.D., our Chief Product Strategy Officer, adopted a Rule 10b5-1 trading plan providing for the sale of up to 37, 288 shares of our common stock, including shares vested under performance stock units and restricted stock units, as well as shares vesting under outstanding stock options, so long as the market price of our common stock is higher than certain minimum threshold prices specified in the plan in various periods between June 17, 2024 and May 30, 2025, or such earlier date as all authorized sales under the plan are completed;

•

On March 15, 2024, Yat Sun Or, our Chief Scientific Officer, adopted a Rule 10b5-1 trading plan providing for the sale of up to (i)25,171 shares of our common stock and (ii) 36,500 shares of our common stock subject to vested stock options with an exercise price of $44.00 that are due to expire on November 20, 2024, so long as in each case the market price of our common stock is higher than certain minimum threshold prices specified in the plan, in various periods between June 17, 2024 and December 31, 2024, or such earlier date as all authorized sales under the plan are completed; and

•

On March 15, 2024, Scott T. Rottinghaus, M.D., our Chief Medical Officer, adopted a Rule 10b5-1 trading plan providing for the sale of up to 25,695 shares of our common stock, including shares vested under performance stock units and restricted stock units, as well as shares vesting under outstanding stock options and restricted stock units, so long as the market price of our common stock is higher than certain minimum threshold prices specified in the plan, in various periods between June 17, 2024 and March 31, 2025, or such earlier date as all authorized sales under the plan are completed.

Except as set forth above, no director or officer (as defined in Rule 16a-1(f) under the Exchange Act) of the Company adopted orterminated a “Rule 10b5-1 trading arrangement” or “non-rule 10b5-1 trading arrangement,” as each term is defined in item 408(a) of Regulation S-K.