Lee Ainslie's MIR Position Overview
Lee Ainslie (via Maverick Capital LTD) currently holds 2.65 M shares of Mirion Technologies, Inc. (MIR) worth $49.26 M, representing 0.57% of the portfolio. First purchased in 2024-Q1, this medium-term investment has been held for 9 quarters.
Based on 13F filings, Lee Ainslie has maintained a strategic position in MIR, demonstrating sustained confidence in this investment. Largest addition occurred in Q4 2024, adding 5.99 M shares. Largest reduction occurred in Q2 2025, reducing 2.75 M shares.
Analysis based on 13F filings available since 2013 Q2
Lee Ainslie's Mirion Technologies (MIR) Holding Value Over Time
Track share changes against reported price movement
Quarterly Mirion Technologies (MIR) Trades by Lee Ainslie
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | +2.65 M | New Buy | 2.65 M | $18.59 |
| Q4 2025 | -2.59 M | Sold Out | 0 | $0.00 |
| Q3 2025 | -2.72 M | Reduce 51.23% | 2.59 M | $23.26 |
| Q2 2025 | -2.75 M | Reduce 34.11% | 5.31 M | $21.53 |
| Q1 2025 | +1.88 M | Add 30.41% | 8.06 M | $14.50 |
| Q4 2024 | +5.99 M | Add 3267.89% | 6.18 M | $17.45 |
| Q3 2024 | +23,616 | Add 14.78% | 183,427 | $11.07 |
| Q2 2024 | +119,037 | Add 291.94% | 159,811 | $10.74 |
| Q1 2024 | +40,774 | New Buy | 40,774 | $11.37 |
Lee Ainslie's Mirion Technologies Investment FAQs
Lee Ainslie first purchased Mirion Technologies, Inc. (MIR) in Q1 2024, acquiring 40,774 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Lee Ainslie has held Mirion Technologies, Inc. (MIR) for 9 quarters since Q1 2024.
Lee Ainslie's largest addition to Mirion Technologies, Inc. (MIR) was in Q4 2024, adding 6,177,611 shares worth $107.8 M.
According to the latest 13F filing for Q1 2026, Lee Ainslie's firm, Maverick Capital LTD, owns 2,649,879 shares of Mirion Technologies, Inc. (MIR), valued at approximately $49.26 M.
As of the Q1 2026 filing, Mirion Technologies, Inc. (MIR) represents approximately 0.57% of Lee Ainslie's publicly disclosed stock portfolio, making it one of their key holdings.
Lee Ainslie's peak holding in Mirion Technologies, Inc. (MIR) was 8,056,109 shares, as reported at the end of Q1 2025.