Alquist 3D appoints Patrick Callahan as Chief Executive Officer

Evidence notes
- Alquist 3D appointed Patrick Callahan as CEO, with founder Zachary Mannheimer transitioning to chairman of the board.
- The leadership change was tied to the company's relocation to Greeley, Colorado, supported by a state and city incentive package.
- Callahan was brought in to scale operations and expand deployment of 3D-printed housing and infrastructure.
Company context
Alquist applies robotic 3D concrete printing to housing and infrastructure construction.