Ticker · CUSIP 615111101

MEG

MONTROSE ENVIRONMENTAL GROUP
···Share
Holders (tracked)
9
Combined shares
3,225,176
Combined value
$79.44M
Last close
Quarter
2025Q4
Tracked holders · last 8 quarters
-1 vs previous quarter over the last 8.
9122024Q12025Q4

SEC event timeline

18 events
  1. −63,227 shares · 2025Q4
    13F
  2. +10,944 shares · 2025Q4
    13F
  3. −172,277 shares · 2025Q4
    13F
  4. −49,800 shares · 2025Q4
    13F
  5. +1,167 shares · 2025Q4
    13F
  6. +168,699 shares · 2025Q4
    13F
  7. +136 shares · 2025Q4
    13F
  8. +45,016 shares · 2025Q4
    13F
  9. −10,300 shares · 2025Q4
    13F
  10. +94,697 shares · 2025Q4
    13F
  11. −549,884 shares · 2025Q3
    13F
  12. +11,941 shares · 2025Q3
    13F
  13. +1,499 shares · 2025Q3
    13F
  14. −603,932 shares · 2025Q3
    13F
  15. −271,341 shares · 2025Q3
    13F
  16. +70,155 shares · 2025Q3
    13F
  17. +10,300 shares · 2025Q3
    13F
  18. +39,331 shares · 2025Q3
    13F

Insider activity

No insider transactions in the last 30 days.

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
8
$155.5M
2022Q2
5
$101.1M
2022Q3
6
$101K
2022Q4
7
$128.9M
2023Q1
7
$121.3M
2023Q2
8
$157.9M
2023Q3
11
$109.4M
2023Q4
13
$126.2M
2024Q1
12
$145.6M
2024Q2
10
$179.4M
2024Q3
11
$80.6M
2024Q4
8
$78.4M
2025Q1
10
$70.6M
2025Q2
9
$97.0M
2025Q3
10
$87.6M
2025Q4
9
$79.4M

Who owns MEG

9 super-investors · 2025Q4
Tracked stake
3.23M
shares
Combined value
$79M
% of shares outstanding
shares-out unknown
Quarter action mix
New2Added4Trim3
#ManagerSharesValue
1Ron Baron
Baron Capital / BAMCO
2.16M$54M
2Ken Fisher
Fisher Asset Mgmt
352.6K$9M
3AQR Capital Management215.7K$5M
4Ken Griffin
Citadel Advisors
172.8K$4M
5Paul Tudor Jones
Tudor Investment
168.7K$4M
6Izzy Englander
Millennium Mgmt
71.6K$2M
7Ken Griffin
Citadel Advisors
46.5K$1M
8D.E. Shaw & Co.10.9K$272K
9T. Rowe Price25.8K$641

Recent moves

20 transactions
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