MEG Institutional Ownership & Shareholders
MONTROSE ENVIRONMENTAL GROUP (MEG) is currently held by 152 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $721.03M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of MEG tracked by InsiderSet, reporting ownership valued at approximately $66.19M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $68.94M, representing an estimated gain of +4.16% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 52% of the total disclosed MEG value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Bamco Inc, Nomura Asset Management International 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
152
Total Reported Value
$721.03M
Largest Holder
Blackrock, Inc.
Largest Position
$66.19M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
58
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% | 3,274,887 | $66,185,463 | $68,936,371 | +$2,750,908 | +4.16% | |
| Bamco Inc | 0.06% | 2,137,406 | $43,196,975 | $44,992,396 | +$1,795,421 | +4.16% | |
| Nomura Asset Management International Inc. | 0.06% | 2,097,249 | $42,385,000 | $44,147,091 | +$1,762,091 | +4.16% | |
| Goldman Sachs Group Inc | 0.00% | 1,930,869 | $39,022,862 | $40,644,792 | +$1,621,930 | +4.16% | |
| Corvex Management Lp | 1.11% | 1,770,000 | $35,771,700 | $37,258,500 | +$1,486,800 | +4.16% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.01% | 1,515,671 | $33,178,040 | $31,904,875 | -$1,273,165 | -3.84% | |
| Alliancebernstein L.P. | 0.01% | 1,490,124 | $32,618,814 | $31,367,110 | -$1,251,704 | -3.84% | |
| Vanguard Capital Management Llc | 0.00% | 1,453,439 | $29,374,002 | $30,594,891 | +$1,220,889 | +4.16% | |
| Fmr Llc | 0.00% | 1,443,390 | $29,170,912 | $30,383,360 | +$1,212,448 | +4.16% | |
| Nomura Holdings Inc | 0.11% | 1,249,241 | $25,247,161 | $26,296,523 | +$1,049,362 | +4.16% | |
| Royce & Associates Lp | 0.18% | 1,094,077 | $22,111,296 | $23,030,321 | +$919,025 | +4.16% | |
| Dimensional Fund Advisors Lp | 0.00% | 1,004,066 | $20,292,821 | $21,135,589 | +$842,768 | +4.15% | |
| Janus Henderson Group Plc | 0.01% | 867,042 | $18,979,041 | $18,251,234 | -$727,807 | -3.83% | |
| Ubs Group Ag | 0.00% | 927,315 | $18,741,036 | $19,519,981 | +$778,945 | +4.16% | |
| Geode Capital Management, Llc | 0.00% | 869,267 | $17,571,175 | $18,298,070 | +$726,895 | +4.14% | |
| Legal & General Group Plc | 0.00% | 817,998 | $16,531,739 | $17,218,858 | +$687,119 | +4.16% | |
| State Street Corp | 0.00% | 798,858 | $16,144,920 | $16,815,961 | +$671,041 | +4.16% | |
| Stephens Investment Management Group Llc | 0.16% | 736,768 | $14,890,081 | $15,508,966 | +$618,885 | +4.16% | |
| Morgan Stanley | 0.00% | 618,246 | $12,494,765 | $13,014,078 | +$519,313 | +4.16% | |
| Truist Financial Corp | 0.01% | 792,718 | $10,606,567 | $16,686,714 | +$6,080,147 | +57.32% | |
| Millennium Management Llc | 0.01% | 441,155 | $8,915,743 | $9,286,313 | +$370,570 | +4.16% | |
| Northern Trust Corp | 0.00% | 401,858 | $8,121,551 | $8,459,111 | +$337,560 | +4.16% | |
| Allspring Global Investments Holdings, Llc | 0.01% | 383,435 | $7,749,221 | $8,071,307 | +$322,086 | +4.16% | |
| Arrowmark Colorado Holdings Llc | 0.29% | 339,464 | $6,860,567 | $7,145,717 | +$285,150 | +4.16% | |
| Fisher Asset Management, Llc | 0.00% | 332,025 | $6,710,224 | $6,989,126 | +$278,902 | +4.16% | |
| Private Capital Management, Llc | 0.54% | 297,305 | $6,008,534 | $6,258,270 | +$249,736 | +4.16% | |
| Russell Investments Group, Ltd. | 0.01% | 294,923 | $5,960,394 | $6,208,129 | +$247,735 | +4.16% | |
| Tudor Investment Corp Et Al | 0.02% | 285,428 | $5,768,500 | $6,008,259 | +$239,759 | +4.16% | |
| Vanguard Portfolio Management Llc | 0.00% | 280,914 | $5,677,272 | $5,913,240 | +$235,968 | +4.16% | |
| Bank Of America Corp | 0.00% | 276,662 | $5,591,339 | $5,823,735 | +$232,396 | +4.16% | |
| Summit Creek Advisors Llc | 1.89% | 274,713 | $5,551,950 | $5,782,709 | +$230,759 | +4.16% | |
| Granahan Investment Management, Llc | 0.19% | 259,703 | $5,248,598 | $5,466,748 | +$218,150 | +4.16% | |
| Charles Schwab Investment Management Inc | 0.00% | 239,951 | $4,849,410 | $5,050,969 | +$201,559 | +4.16% | |
| Vanguard Fiduciary Trust Co | 0.00% | 221,229 | $4,471,038 | $4,656,870 | +$185,832 | +4.16% | |
| Invesco Ltd. | 0.00% | 197,296 | $3,987,352 | $4,153,081 | +$165,729 | +4.16% | |
| Citadel Advisors Llc | 0.00% | 182,185 | $3,681,959 | $3,834,994 | +$153,035 | +4.16% | |
| Panagora Asset Management Inc | 0.01% | 181,929 | $3,676,785 | $3,829,605 | +$152,820 | +4.16% | |
| Global Alpha Capital Management Ltd. | 0.21% | 173,335 | $3,503,100 | $3,648,702 | +$145,602 | +4.16% | |
| Blair William & Co/Il | 0.01% | 173,037 | $3,497,078 | $3,642,429 | +$145,351 | +4.16% | |
| Op Asset Management Ltd | 0.04% | 156,157 | $3,418,276 | $3,287,105 | -$131,171 | -3.84% | |
| Nuveen, Llc | 0.00% | 158,617 | $3,205,650 | $3,338,888 | +$133,238 | +4.16% | |
| Assenagon Asset Management S.A. | 0.00% | 237,580 | $3,178,820 | $5,001,059 | +$1,822,239 | +57.32% | |
| Centerbook Partners Lp | 0.13% | 214,048 | $2,863,962 | $4,505,710 | +$1,641,748 | +57.32% | |
| Raiffeisen Bank International Ag | 0.03% | 201,800 | $2,847,398 | $4,247,890 | +$1,400,492 | +49.18% | |
| Penn Capital Management Company, Llc | 0.18% | 138,744 | $2,804,016 | $2,920,561 | +$116,545 | +4.16% | |
| Rockefeller Capital Management L.P. | 0.00% | 131,010 | $2,647,712 | $2,757,761 | +$110,049 | +4.16% | |
| Nordea Investment Management Ab | 0.00% | 124,250 | $2,496,182 | $2,615,463 | +$119,281 | +4.78% | |
| Nexpoint Asset Management, L.P. | 0.15% | 110,353 | $2,230,234 | $2,322,931 | +$92,697 | +4.16% | |
| Bank Of New York Mellon Corp | 0.00% | 106,721 | $2,156,832 | $2,246,477 | +$89,645 | +4.16% | |
| Universal- Beteiligungs- Und Servicegesellschaft Mbh | 0.00% | 102,024 | $2,061,905 | $2,147,605 | +$85,700 | +4.16% |
Frequently asked questions about MEG
Who are the largest institutional holders of MEG?
The largest institutional holders of MEG reported in the latest SEC Form 13F filings include Blackrock, Inc., Bamco Inc, Nomura Asset Management International Inc., Goldman Sachs Group Inc, and Corvex Management Lp. InsiderSet ranks institutional holders by their latest reported MEG position.
What is MEG institutional ownership?
This page tracks MEG positions reported by institutional investment managers through SEC Form 13F. MONTROSE ENVIRONMENTAL GROUP (MEG) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own MEG?
InsiderSet currently tracks 152 institutional managers reporting MEG holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of MEG shareholders.
How much MEG stock do institutions own?
Institutional investment managers disclosed approximately $721.03M in MEG holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was MEG institutional ownership last updated?
The latest MEG institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional MEG holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its MEG position after the reporting date.
Are institutions buying or selling MEG?
Institutional buying and selling can be analyzed by comparing MEG positions across consecutive 13F reporting periods. InsiderSet's MEG Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View MEG ownership changes.
How has MEG institutional ownership changed over time?
InsiderSet tracks MEG institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.