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Mirion Technologies, Inc. 13F holders

Of the 44 funds followed here, 8 reported a position in Mirion Technologies, Inc. in a 13F for the quarter ended 30 June 2026. The largest: Alyeska, 9.5 million shares worth $171.0 million, 0.4% of its reported book. New this quarter: Two Sigma Investments.

FundSharesValueOf its bookChange on the quarterStatusQuarter endedFiling
Alyeska9,534,955$171.0 million0.4%+6,833,375added30 June 202613F
FMR LLC7,329,386$131.4 million0.0%+777,694added30 June 202613F
Geode Capital Management6,280,048$112.6 million0.0%+339,873added30 June 202613F
Millennium Management991,741$17.8 million0.0%-4,432,960trimmed30 June 202613F
Point72 Asset Management677,709$12.2 million0.0%+492,238added30 June 202613F
Citadel Advisors504,296$9.0 million0.0%-1,544,556trimmed30 June 202613F
Bridgewater Associates359,138$6.4 million0.0%+7,353added30 June 202613F
Two Sigma Investments19,771$354,4940.0%+19,771new30 June 202613F
Value is what the fund reported.
Read moreChange is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.

Schedule 13D and 13G filed on the name, last twelve months

FiledScheduleWhoHoldingOf the classEvent dateRule or purposeFiling
30 April 202613GVanguard Capital Management and 1 other12.3 million5.0%31 March 2026passive, institutional (13d-1(b))EDGAR
29 April 202613GVanguard Portfolio Management and 1 other18.1 million7.4%31 March 2026passive, institutional (13d-1(b))EDGAR
27 March 202613G/AThe Vanguard Group and 1 other00.0%13 March 2026passive, institutional (13d-1(b))EDGAR
17 February 202613G/AT. Rowe Price Investment Management, Inc. and 1 other15.1 million6.1%31 December 2025passive, institutional (13d-1(b))EDGAR
21 January 202613G/AKuwait Investment Authority, acting for and on behalf of the Government of the State of Kuwait (KIA) and 1 other10.2 million4.1%29 July 2022passive, under 20% (13d-1(c))EDGAR
31 October 202513G/AThe Vanguard Group and 1 other30.4 million12.4%30 September 2025passive, institutional (13d-1(b))EDGAR
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
Read moreAmendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short.

Fails to deliver

Settlement dateShares failedPriceFile
14 September 2026694$15.98SEC
10 September 2026106$16.62SEC
9 September 2026138$16.92SEC
8 September 2026396$16.93SEC
4 September 2026124$16.76SEC
2 September 20262,264$15.51SEC
27 August 202620$14.90SEC
14 August 202615,000$15.60SEC
13 August 2026449$15.21SEC
5 August 2026130$16.17SEC
4 August 2026990$15.68SEC
3 August 202635,977$14.98SEC
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
Read moreLargest in the window: 35,977 on 3 August 2026. A fail is an operational fact about settlement, not a position.

Source

Each fund's 13F-HR on EDGAR, linked per row; positions matched to MIR by CUSIP from the SEC's own fails-to-deliver files; Schedule 13D and 13G from the company's own filing index, each read to confirm the company is the issuer named.

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