Certain Options of Merus N.V. are subject to a Lock-Up Agreement Ending on 9-OCT-2023. These Options will be under lockup for 61 days starting from 9-AUG-2023 to 9-OCT-2023.

Details:
Directors, executive officers and certain of securityholders have entered into lock-up agreements with the underwriters, pursuant to which each of these persons or entities, subject to certain specified exceptions, agree that they will not, offer, sell, contract to sell, pledge, hedge or otherwise dispose of (or enter into any transaction which is designed to, or might reasonably be expected to, result in the disposition in accordance with the rules and regulations promulgated under the Securities Act or publicly announce an intention to effect any such transaction, in each case without the prior written consent of the representatives for a period through and including the date that is 60 days after the date of this prospectus supplement.