Ardian, StepStone, Adams Street Partners and CPP Investments are LPs in the firm's debut buyside fund.
The firm has launched separate private credit and private equity vehicles focusing on mid-market opportunities.
Benoît Durteste says investing the capital would not be challenging – a change in tone compared with comments he made in September regarding larger GP-led deployment.
The firm disclosed the launch of its concentrated deal-focused GP-led strategy in May.
The London-based firm’s strategy is based on a preferred equity approach to give GPs, LPs and companies short-term liquidity.
The oversubscribed vehicle is more than $300m larger than its predecessor.
The firm’s 2024 Global Fund Program raised just over $1bn.
Backed by LPs including family office Infinitas Capital, Opportuna plans to target $30m once investors are satisfied with its initial five-company portfolio.
Pantheon Senior Debt Secondaries III has raised nearly $2.4bn after launching in October last year.
Public pension fund documents have shed light on how many managers Pantheon Credit Opportunities III plans to invest with and its expected geographic makeup.