ImmunoGen Funding: $300M Raised, IPO

ImmunoGen is based in Waltham. It has raised $300M in total funding. Latest round: IPO.

ImmunoGen funding overview

ImmunoGen is based in Waltham. ImmunoGen has raised $300M in total disclosed funding. That places its disclosed total in the $250M–$1B range. Its most recent disclosed round is an IPO.

ImmunoGen at a glance

Total raised
$300M
Latest round
IPO
Headquarters
Waltham

Frequently asked about ImmunoGen funding

How much has ImmunoGen raised?
ImmunoGen has raised $300M in total disclosed funding across the rounds on record.
Who has invested in ImmunoGen?
No investors are named on the public record for ImmunoGen yet.
What was the latest ImmunoGen funding round?
The most recent disclosed round is an IPO.
Where is ImmunoGen based?
ImmunoGen is based in Waltham.

We update the ImmunoGen record whenever a new round is filed or announced, so the totals above track the public record rather than estimates. Related companies in Waltham and their backers are listed below.

Companies related to ImmunoGen (18)

Browse related funding lists (2)

Company funding database · Investor directory · Founder database · Mega-rounds 2026

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