Security key
60471A101
Mirion Technologies, Inc. - Common Stock (MIR)
CUSIP: 60471A101
Q4 2021 13F Holders as of 31 Dec 2021
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 144,900,158
- Total 13F value
- $1,517,510,036
- Share change
- +144,217,815
- Put/Call ratio
- 10%
- SEC-reported price per share
- $10.47
- Number of holders
- 93
- Value change
- +$1,510,417,095
- Number of buys
- 88
- Number of sells
- 2
- Shares outstanding
- 245,072,565
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2021
Institutions
93
Top holders
10
MIR full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2026
Mirion Technologies, Inc. SEC filings
Mirion Technologies, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 60471A101
Recent filing periods:
Ownership snapshot
Top reported holders of MIR - Mirion Technologies, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Marshall Wace North Ameri...
Disclosed value leader
Marshall Wace North Ameri...
Comparable rows
0/5
Latest evidence
20 Oct 2021
13F
3/4/5
Highest disclosed value: $14,310,000
5 rows are not safely comparable across share classes.
Quick read
Marshall Wace North America L.P. has the largest disclosed position value at $14.31M.
0 of 5 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Marshall Wace North America L.P.'s linked filing trail.
Disclosed position value
Top 4
Marshall Wace North America L.P.
$14.31M
MARSHALL WACE, LLP
$1.57M
TUDOR INVESTMENT CORP ET AL
$521K
Anchor Investment Management, LLC
$20.4K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-5 of 5 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Marshall Wace North America L.P. |
13F
Company
|
—
denominator unverified
|
$14,310,000
1,400,208 shares
|
— | 30 Sep 2021 |
| MARSHALL WACE, LLP |
13F
Company
|
—
denominator unverified
|
$1,571,000
153,727 shares
|
— | 30 Sep 2021 |
| TUDOR INVESTMENT CORP ET AL |
13F
Company
|
—
denominator unverified
|
$521,000
51,000 shares
|
— | 30 Sep 2021 |
| Anchor Investment Management, LLC |
13F
Company
|
—
denominator unverified
|
$20,440
2,000 shares
|
— | 30 Sep 2021 |
| Michael Freed |
3/4/5
Chief Operating Officer
|
—
denominator unverified
|
—
935,818 shares
|
— | 20 Oct 2021 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
93
Shares
144,900,158
Rows available
93
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2021 vs Q3 2021 Across Filers
Q3 2021 holders
4
Q4 2021 holders
93
Holder diff
89
| Investor | Q3 2021 Shares | Q4 2021 Shares | Share Diff | Share Chg % | Q3 2021 value | Q4 2021 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend