What does MPM Capital invest in?
MPM Capital invests most often at Series B and Series A (51% of the rounds on record), in sectors such as Molecules, Ivd and Medical Devices.

United States · Investor
Last cheque observed Dec 2025; 139 cheques on record.
Deploying nowNew fund $407K, Jun 2026Private equityNow at mpmbioimpact.com
1 cheques in the last 12 months
Mostly Series B and Series A: 51% of its rounds
Sole investor in 8 rounds, median $10M
23 exits from the portfolio
Filed 1 private fund offering with the SEC, the most recent in 2020-02From their own website
Every round we can evidence, newest first139 appearances
1 round
1 round
4 rounds
2 rounds
2 rounds
2 rounds
6 rounds
4 rounds
8 rounds
11 rounds
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.
Named by the firm itself, on a filing, its Form ADV or its company registration10 named
We also hold 33 people 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 the firm's own filings with the SEC, which it must file accurately by law
Funds on its Form ADV
21 private funds, $3.3B in gross assets · filed Jun 2024
Venture 17Hedge fund and venture capit 2Hedge 2
And 11 more on the filing.
From their own portfolio page (on their website)
AstronauTxCullinan OncologyFrontier MedicinesReunion NeuroscienceUmoja-biopharmaelevatebioAktisAshiBioFablePhotysProtego
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.
Companies it backed that were later bought or listed23 in all
The latest 20 here. An exit counts when it came after the firm's first round in the company. From historical deal records.
Acquisitions by the firm itself
The investors most often in the same rounds as MPM Capital. A count of rooms they were both in, not a relationship either has claimed.
The latest companies MPM Capital put money into.
MPM Capital invests most often at Series B and Series A (51% of the rounds on record), in sectors such as Molecules, Ivd and Medical Devices.
139 investments on record, 1 of them in the last 12 months, and it led 2. The most recent was in Dec 2025.
Its most recent investments on record: Protego Biopharma (Series B, Dec 2025), AstronauTx (Series A, Oct 2023) and Tripley Therapeutics (Series A, Dec 2019).
The median round it joins is $60M.
Sometimes: it led 2 of its 139 investments on record (1%).
Most of the companies it backs are in the United States (97%).
Yes: it is actively investing, with 1 investments in the last 12 months.
Most often New Enterprise Associates (16 rounds together), ARCH Venture Partners (13 rounds together) and HealthCare Ventures (13 rounds together).
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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