What does MRL Ventures Fund invest in?
MRL Ventures Fund invests most often at Series B (100% of the rounds on record), in sectors such as Mobile, Network Security and Research.

United States · Investor
Last cheque observed Apr 2026; 2 cheques on record.
Deploying nowCorporate VCNow at msd.com
1 cheques in the last 12 months
Mostly Series B: 100% of its rounds
Every round we can evidence, newest first2 appearances
1 round
1 round
An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.
We hold 1 person at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.
From their own portfolio page (on their website)
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Weaker than a round we watched, stronger than a list somebody sold us. A firm is far less willing to put a company on its own site that it never funded.
The latest companies MRL Ventures Fund put money into.
MRL Ventures Fund invests most often at Series B (100% of the rounds on record), in sectors such as Mobile, Network Security and Research.
2 investments on record, 1 of them in the last 12 months. The most recent was in Apr 2026.
Its most recent investments on record: Ray Therapeutics (Series B, Apr 2026) and Kymera Therapeutics (Series B, Nov 2018).
The median round it joins is $95M.
Yes: it is actively investing, with 1 investments in the last 12 months.
MRL Ventures Fund is a corporate VC based in Cambridge, United States.
MRL Ventures Fund was founded in 1891.
From 3 articles and filings naming it in a round, public registers and its own website, checked and rebuilt every night.
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Built from the rounds we watched, its filings and its own website, refreshed every night. How we count · Report a correction · Is this your firm? Claim it