David B. Singer

Managing Partner at Maverick Ventures

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Biography

David B. Singer is one of the six people listed on the Maverick Ventures investment team page. The January 2025 Form D/A for Maverick Ventures Cycle 4 Serial Fund, L.P. names him as an executive officer and describes him as Managing Partner of Maverick Ventures Cycle 4 GP, LLC, giving a San Francisco address at One Letterman Drive, Building D. An earlier Form D for Maverick Ventures Investment Fund, L.P. describes him as Managing Partner of Maverick Capital Ventures, LLC. He filed a Form 3 on 18 February 2026 with the Director box checked for Churchill Capital Corp X, the special purpose acquisition company that became Infleqtion, Inc. on 13 February 2026, and has filed Form 4s for Infleqtion since, so that board seat is recorded as current. No education or prior employment was sourced from an acceptable first-party page.

Notable Investments

Infleqtion, Inc. INFQ

Board Seats

Career Timeline

2025
Named in the January 2025 Form D/A of Maverick Ventures Cycle 4 Serial Fund, L.P. as an executive officer described as Managing Partner of Maverick Ventures Cycle 4 GP, LLC, at One Letterman Drive, Building D, San Francisco.
2026
Filed a Form 3 on 18 February 2026 as a Director of Churchill Capital Corp X, the entity that became Infleqtion, Inc. on 13 February 2026, with subsequent Form 4s through 29 May 2026.

Sources & References

SEC Form 3, David B. Singer, Churchill Capital Corp X (Infleqtion), filed 18 February 2026, Director box checked ↗SEC Form D/A, Maverick Ventures Cycle 4 Serial Fund, L.P., 8 January 2025 ↗SEC Schedule 13D/A on Infleqtion, Inc., 26 May 2026 ↗Maverick Ventures - investment team ↗