Pulmatrix and Cullgen amend merger agreement to one-step merger; Second Merger Sub removed

Pulmatrix, Inc.

Amendment No. 1 dated April 7, 2025 changes transaction from two-step to one-step merger, eliminating Second Merger Sub.
Clarifies fractional shares provision; Cullgen will survive as wholly owned subsidiary of Pulmatrix.
Boards of both companies approved the amendment; all other terms of original November 13, 2024 agreement remain.
Transaction remains subject to stockholder approval, regulatory clearances, and Nasdaq listing; consideration unchanged.

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