MONTROSE ENVIRONMENTAL GROUP (MEG) Top Institutional Shareholders
MONTROSE ENVIRONMENTAL GROUP (MEG) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $712.91M in MEG holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of MEG tracked by InsiderSet, reporting ownership valued at approximately $68.97M in its March 31, 2026 SEC Form 13F filing.
The top 10 institutional shareholders tracked on this page collectively account for approximately 50% of the total disclosed MEG value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Bamco Inc, Goldman Sachs Group Inc, and several other long-term asset managers with concentrated positions in MONTROSE ENVIRONMENTAL GROUP (MEG).
This page ranks the largest institutional MEG shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
167
Total Reported Value
$712.91M
Largest Holder
Blackrock, Inc.
Largest Position
$68.97M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
181
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 3,150,760 | $68,970,137 | — | — | — | |
| Bamco Inc | 0.14% | 2,168,183 | $47,461,526 | — | — | — | |
| Goldman Sachs Group Inc | 0.01% | 1,960,610 | $42,917,753 | — | — | — | |
| Nomura Asset Management International Inc. | 0.06% | 1,531,641 | $33,528,000 | — | — | — | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.01% | 1,515,671 | $33,178,040 | — | — | — | |
| Vanguard Capital Management Llc | 0.00% | 1,436,165 | $31,437,652 | — | — | — | |
| Principal Financial Group Inc | 0.02% | 1,346,257 | $29,469,566 | — | — | — | |
| Alliancebernstein L.P. | 0.01% | 1,130,913 | $28,080,570 | — | — | — | |
| Royce & Associates Lp | 0.21% | 954,776 | $20,900,047 | — | — | — | |
| Amundi | 0.01% | 880,032 | $19,233,210 | — | — | — | |
| Janus Henderson Group Plc | 0.01% | 867,042 | $18,979,041 | — | — | — | |
| Dimensional Fund Advisors Lp | 0.00% | 858,856 | $18,797,474 | — | — | — | |
| Geode Capital Management, Llc | 0.00% | 803,732 | $17,596,946 | — | — | — | |
| Truist Financial Corp | 0.02% | 795,313 | $17,409,402 | — | — | — | |
| Legal & General Group Plc | 0.00% | 753,684 | $16,498,145 | — | — | — | |
| State Street Corp | 0.00% | 728,450 | $15,945,771 | — | — | — | |
| Stephens Investment Management Group Llc | 0.21% | 694,980 | $15,213,112 | — | — | — | |
| Fmr Llc | 0.00% | 568,373 | $12,441,686 | — | — | — | |
| Summit Creek Advisors Llc | 2.30% | 511,160 | $11,189,292 | — | — | — | |
| Morgan Stanley | 0.00% | 508,809 | $11,137,852 | — | — | — | |
| Avalon Trust Co | 0.66% | 436,494 | $9,554,854 | — | — | — | |
| Allspring Global Investments Holdings, Llc | 0.01% | 393,908 | $8,622,646 | — | — | — | |
| Fred Alger Management, Llc | 0.04% | 387,994 | $8,493,189 | — | — | — | |
| Bank Of America Corp | 0.00% | 372,637 | $8,157,023 | — | — | — | |
| Fisher Asset Management, Llc | 0.00% | 352,569 | $7,717,734 | — | — | — | |
| Northern Trust Corp | 0.00% | 341,298 | $7,471,012 | — | — | — | |
| Millennium Management Llc | 0.01% | 311,166 | $6,811,424 | — | — | — | |
| Vanguard Portfolio Management Llc | 0.00% | 283,521 | $6,206,275 | — | — | — | |
| Charles Schwab Investment Management Inc | 0.00% | 273,043 | $5,976,911 | — | — | — | |
| Nuveen, Llc | 0.00% | 272,364 | $5,962,048 | — | — | — | |
| Peregrine Capital Management Llc | 0.22% | 268,781 | $5,883,616 | — | — | — | |
| Blair William & Co/Il | 0.02% | 266,980 | $5,844,181 | — | — | — | |
| Granahan Investment Management, Llc | 0.26% | 241,787 | $5,292,717 | — | — | — | |
| Citadel Advisors Llc | 0.00% | 222,587 | $4,872,429 | — | — | — | |
| Ubs Group Ag | 0.00% | 221,778 | $4,854,721 | — | — | — | |
| Vanguard Fiduciary Trust Co | 0.00% | 212,109 | $4,643,066 | — | — | — | |
| Russell Investments Group, Ltd. | 0.00% | 201,464 | $4,410,051 | — | — | — | |
| Invesco Ltd. | 0.00% | 181,500 | $3,973,035 | — | — | — | |
| Tudor Investment Corp Et Al | 0.02% | 168,671 | $3,692,208 | — | — | — | |
| Citigroup Inc | 0.00% | 156,451 | $3,424,712 | — | — | — | |
| Sei Investments Co | 0.00% | 154,308 | $3,377,796 | — | — | — | |
| Bnp Paribas Financial Markets | 0.00% | 150,373 | $3,291,665 | — | — | — | |
| Jane Street Group, Llc | 0.00% | 145,401 | $3,182,828 | — | — | — | |
| Global Alpha Capital Management Ltd. | 0.19% | 142,996 | $3,130,182 | — | — | — | |
| Centerbook Partners Lp | 0.17% | 140,508 | $3,075,720 | — | — | — | |
| Arrowmark Colorado Holdings Llc | 0.08% | 139,928 | $3,063,024 | — | — | — | |
| Mackenzie Financial Corp | 0.00% | 134,451 | $2,943,132 | — | — | — | |
| Panagora Asset Management Inc | 0.01% | 134,177 | $2,937,135 | — | — | — | |
| Rockefeller Capital Management L.P. | 0.00% | 128,188 | $2,806,035 | — | — | — | |
| Universal- Beteiligungs- Und Servicegesellschaft Mbh | 0.00% | 118,912 | $2,602,983 | — | — | — |
Frequently asked questions about MEG
Who owns the most MEG stock?
The largest holders of MEG are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for MONTROSE ENVIRONMENTAL GROUP (MEG).
Is MEG widely held by superinvestors?
Many widely followed stocks like MEG appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly MEG is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.