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Joel Greenblatt's Seres Therapeutics, Inc. (MCRB) position

Not anymore: Joel Greenblatt fully exited MCRB in Q1 2022. The position peaked at an amount we cannot price in Q4 2021.
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Value at exit
an amount we cannot price
Shares at exit
10K
Quarter-end price
No quarter-end price available

Average buy price is hidden here because at least one covered purchase quarter has no usable local mean price.

MCRB price vs Greenblatt's position

Dates
$5$5.2$5.4← Earlier —1 purchase
Average closing price · filing quarter
Price range · filing quarter

Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2022 Exited −10K −100.0% 0 May 16, 2022
Q4 2021 New +10K 10K Feb 14, 2022
Data through Q1 2022 · filed May 16, 2022
2 grouped rows from 2 quarters

More Greenblatt positions

Common questions

Does Joel Greenblatt own MCRB?

Not currently. Joel Greenblatt fully exited MCRB in Q1 2022, and the complete history is above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Joel Greenblatt buy MCRB?

Joel Greenblatt first disclosed a MCRB position in Q4 2021; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Joel Greenblatt sell MCRB?

Yes. Joel Greenblatt reduced and then fully exited MCRB by Q1 2022; the reductions are in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of MCRB does Joel Greenblatt own?

None as of the latest filing: Joel Greenblatt has exited MCRB. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Joel Greenblatt pay for MCRB?

Joel Greenblatt began building the MCRB position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.