Iris Dorbian
Jäckle will co-lead the Berlin firm's seed fund with Marton Sarkadi Nagy.
B Capital was co-founded by Eduardo Saverin, co-founder of Facebook.
Altira Technology Fund VII was seeking to raise $200m and had been fundraising since January 2022.
Jada Fund of Funds, a subsidiary of Saudi Arabia's Public Investment Fund, is investing $266m in the latest venture debt fund from Partners for Growth.
8VC, the $6bn venture firm co-founded by Palantir co-founder Joe Lonsdale, has named veteran tech executive Karen White as executive partner.
Menlo Ventures led the round.
Tretikov was promoted to deputy CTO of Microsoft in 2020 after serving as corporate VP for AI, Perception & Mixed Reality for the company.
The investor was Stride Consumer Partners.
The investors include Buoyant Ventures, Levy Family Partners, Riverwalk Capital, and Wolf Capital Management.
Sapphire Ventures and Ansa Capital led the round.