Momentus SPAC Presentation Deck

TRANSACTION OVERVIEW MOMENTUS TEAM Mikhail Kokorich Founder & CEO Dawn Harms Chief Revenue Officer 989 Rob Schwarz Chief Technology Officer STABLE ROAD CAPITAL Brian Kabot Chairman & CEO Fred Kennedy President TEAM Jikun Kim Chief Financial Officer Alex Wicks Chief Development Officer Juan M. Quiroga Chief Investment Officer OFFERING SIZE VALUATION CAPITAL STRUCTURE OWNERSHIP TRANSACTION HIGHLIGHTS Stable Road (NASDAQ: SRAC) is a publicly listed special purpose acquisition company with ~$173M cash held in trust ▪ Raised $175M in PIPE commitments, including $10 million from Stable Road, before transaction announcement ▪ PF enterprise value of $1.2B with well capitalized balance sheet ▪ Implies an attractive valuation versus peer averages (~80% discount to relative value) ▪ Post-transaction, Momentus will have ~$310M in cash to enhance operations, growth and path to profitability ▪ No additional capital needs expected prior to achieving profitability ▪ ~75% existing Momentus shareholders, ~14% SPAC and founder shares, ~12% PIPE investors STABLE ROAD VIEWS MOMENTUS AS A UNIQUE AND COMPELLING OPPORTUNITY TO INVEST IN THE ONLY PUBLICLY-TRADED, PURE-PLAY COMMERCIAL SPACE COMPANY CAPABLE OF REVOLUTIONIZING SPACE INFRASTRUCTURE AND THE BROADER SPACE ECONOMY Copyright 2020. Momentus Inc. Proprietary & Confidential. Not Export Controlled. Any use, reproduction, or distribution without the express consent of Momentus is strictly prohibited. If you are not the intended recipient, please immediately delete this document and any associated communications. Note: Assumes no redemptions from SPAC investors. 1. For additional details on transaction valuation, please refer to page 35

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