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The story of Jack Altman

Entrepreneur and investor; co-founded the HR software company Lattice in 2015 and was its CEO until January 2024; brother of Sam Altman.

Jack Altman. Entrepreneur and investor; co-founded the HR software company Lattice in 2015 and was its CEO until January 2024; brother of Sam Altman.

Family. Younger brother of Sam Altman: educated at Stanford University (c. 2003–2005); founded Loopt (2005); CEO of Loopt (2005 – Mar 2012).

2015

Jack Altman founded Lattice. Co-founder.

2015 – 2 Jan 2024: Jack Altman, CEO of Lattice.

CEO from the founding until 2 January 2024, when Sarah Franklin took over.

2 Jan 2024 –

Jack Altman, chair of Lattice. Executive chairman.

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