It was founded by Arnold Cassola and Mark Camilleri Gambin and officially launched in 2025.

Cassola's resignation was reportedly due to clashes with party leadership and disagreements over the views of abortion of another Green candidate.

He achieved his best result as an independent candidate in the 2024 European Parliament election, when he attained the third-highest number of first preference votes.

[4] Cassola later established "vision circles" as policy discussion forums.

[5] Momentum's main focus is on good governance, economic justice and environmentalism.