ATLANTA, GA
MIRION TECHNOLOGIES, INC.MIR— Latest position per institution from SEC 13F filings
15
Institutional holders
214.90M
Total shares held
3.60B
Estimated value
10.74M
Avg. position size
BLACKROCK, INC.
CIK 2012383
Shares
38.26M
Value
686.04M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
30.35M
Value
710.71M
Filed
Dec 31, 2025
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
18.18M
Value
325.96M
Filed
Jun 30, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
15.80M
Value
169.72M
Filed
Jun 30, 2024
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
CIK 1897612
Shares
14.29M
Value
256.19K
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
10.61M
Value
190.31M
Filed
Jun 30, 2026
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
10.41M
Value
186.59M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
9.92M
Value
177.93M
Filed
Jun 30, 2026
ALYESKA INVESTMENT GROUP, L.P.
CIK 1453072
Shares
9.53M
Value
170.96M
Filed
Jun 30, 2026
COOPERMAN LEON G
CIK 898382
Shares
8.38M
Value
150.32M
Filed
Jun 30, 2026
FMR LLC
CIK 315066
Shares
7.33M
Value
131.42M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
6.28M
Value
112.62M
Filed
Jun 30, 2026
CONGRESS ASSET MANAGEMENT CO
CIK 897378
Shares
6.03M
Value
85.21M
Filed
Sep 30, 2026
MAVERICK CAPITAL LTD
CIK 934639
Shares
5.25M
Value
94.04M
Filed
Jun 30, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
4.86M
Value
87.13M
Filed
Jun 30, 2026
JUPITER TOPCO LLC
CIK 2146052
Shares
4.11M
Value
73.78M
Filed
Jun 30, 2026
JANUS HENDERSON GROUP LTD.
CIK 1274173
Shares
4.04M
Value
75.16M
Filed
Mar 31, 2026
BAMCO INC /NY/
CIK 1017918
Shares
3.91M
Value
70.04M
Filed
Jun 30, 2026
MORGAN STANLEY
CIK 895421
Shares
3.90M
Value
69.87M
Filed
Jun 30, 2026
KOHLBERG KRAVIS ROBERTS & CO. L.P.
CIK 1399770
Shares
3.45M
Value
35.32M
Filed
Dec 31, 2023
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK, INC. | 2012383 | 38.26M | 686.04M | Jun 30, 2026 |
| 2 | VANGUARD GROUP INC | 102909 | 30.35M | 710.71M | Dec 31, 2025 |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 18.18M | 325.96M | Jun 30, 2026 |
| 4 | BLACKROCK FINANCE, INC. | 1364742 | 15.80M | 169.72M | Jun 30, 2024 |
| 5 | T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 1897612 | 14.29M | 256.19K | Jun 30, 2026 |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 10.61M | 190.31M | Jun 30, 2026 |
| 7 | GOLDMAN SACHS GROUP INC | 886982 | 10.41M | 186.59M | Jun 30, 2026 |
| 8 | STATE STREET CORP | 93751 | 9.92M | 177.93M | Jun 30, 2026 |
| 9 | ALYESKA INVESTMENT GROUP, L.P. | 1453072 | 9.53M | 170.96M | Jun 30, 2026 |
| 10 | COOPERMAN LEON G | 898382 | 8.38M | 150.32M | Jun 30, 2026 |
| 11 | FMR LLC | 315066 | 7.33M | 131.42M | Jun 30, 2026 |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 6.28M | 112.62M | Jun 30, 2026 |
| 13 | CONGRESS ASSET MANAGEMENT CO | 897378 | 6.03M | 85.21M | Sep 30, 2026 |
| 14 | MAVERICK CAPITAL LTD | 934639 | 5.25M | 94.04M | Jun 30, 2026 |
| 15 | DIMENSIONAL FUND ADVISORS LP | 354204 | 4.86M | 87.13M | Jun 30, 2026 |
| 16 | JUPITER TOPCO LLC | 2146052 | 4.11M | 73.78M | Jun 30, 2026 |
| 17 | JANUS HENDERSON GROUP LTD. | 1274173 | 4.04M | 75.16M | Mar 31, 2026 |
| 18 | BAMCO INC /NY/ | 1017918 | 3.91M | 70.04M | Jun 30, 2026 |
| 19 | MORGAN STANLEY | 895421 | 3.90M | 69.87M | Jun 30, 2026 |
| 20 | KOHLBERG KRAVIS ROBERTS & CO. L.P. | 1399770 | 3.45M | 35.32M | Dec 31, 2023 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.