By CapitalSnitch Research Desk · updated Oct 11, 2026 · data from SEC filings and official Congress disclosures
Seres Therapeutics, Inc. the people running the company have only been selling lately: five insiders sold off about $55,000 of stock over 12 months, with no open-market purchases.
Selling on its own is common and often pre-planned (10b5-1 plans, taxes, diversification), so it matters more when it is unusually heavy or broad.
7 quarters in a row of net selling by insiders. Insiders bought in 0 of the last 7 full quarters. On the institutional side, 36 funds reported holding MCRB at the end of Q2 2026, and funds were split between buying and selling.
Are insiders buying or selling MCRB stock?
In the last 12 months Seres Therapeutics, Inc. insiders made open-market purchases worth about $0 and sales worth about $55,000. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
When was the last insider trade in MCRB?
The most recent open-market insider trade in MCRB was filed on 2026-08-18.
How many institutions own MCRB?
36 investment managers reported holding MCRB in SEC Form 13F filings for Q2 2026.
Has any member of Congress traded MCRB?
No congressional trades in MCRB were reported in the past two years. The full list is free on CapitalSnitch.
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Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1).
Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).