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Joel Greenblatt's Mirion Technologies, Inc. (MIR) position

Not anymore: Joel Greenblatt fully exited MIR in Q1 2026. The position peaked at $2.2M in Q4 2025.
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Value at exit
$2.2M
Shares at exit
93K
Est. average buy price (i)
$24.94
Quarter-end price
$23.42

Estimated trade prices

Average price in quarters with purchases
$21.05

MIR price vs Greenblatt's position

1Y 3Y 5Y MAX
Dates
$5$20$4020222023202420252026New position of 11K shares · Q1 2024. Average closing price $10.02 · Price range $9.33–$11.3911KsharespurchasedAdded 9K shares (88.1%) · Q2 2024. Average closing price $10.63 · Price range $9.85–$11.239KsharespurchasedAdded 9K shares (44.2%) · Q3 2024. Average closing price $10.52 · Price range $9.45–$11.789KsharespurchasedNew position of 14K shares · Q2 2025. Average closing price $17.24 · Price range $12.70–$21.7114KsharespurchasedNew position of 93K shares · Q4 2025. Average closing price $24.94 · Price range $22.57–$29.7593Ksharespurchased
Average closing price · filing quarter
$24.94
Price range · filing quarter
$22.57 – $29.75
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Exited −93K −$2.1M −100.0% 0 May 15, 2026
Q4 2025 New +93K +$2.3M – 93K Feb 17, 2026
Q2 2025 New +14K +$234K – 14K Aug 14, 2025
Q3 2024 Added +9K +$94K +44.2% 29K Nov 14, 2024
Q2 2024 Added +9K +$100K +88.1% 20K Aug 14, 2024
Q1 2024 New +11K +$107K – 11K May 15, 2024
Data through Q1 2026 · filed May 15, 2026
6 grouped rows from 6 quarters

More Greenblatt positions

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Alphabet Inc.(GOOGL)
$155M
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Snowflake Inc.(SNOW)
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Common questions

Does Joel Greenblatt own MIR?

Not currently. Joel Greenblatt fully exited MIR in Q1 2026, 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 MIR?

Joel Greenblatt first disclosed a MIR position in Q1 2024; 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 MIR?

Yes. Joel Greenblatt reduced and then fully exited MIR by Q1 2026; 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 MIR does Joel Greenblatt own?

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

What price did Joel Greenblatt pay for MIR?

Joel Greenblatt's estimated average buy price for MIR is $24.94, from quarter-average prices weighted by the shares added each quarter. 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.