Montrose Environmental Group Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NYSE:MEG Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Role	Shares	Max Price
13 May 25	BuyUS$49,010	Vincent Colman	Individual		2,600	US$18.85
06 Mar 25	BuyUS$180,700	J. Miguel de Castro	Individual		10,000	US$18.07

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of MEG?
Owner Type	Number of Shares	Ownership Percentage
Individual Insiders	2,438,148	6.87%
Institutions	33,046,165	93.1%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 77.79% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
8.13%	BlackRock, Inc.	2,869,167	US$74.6m	2.71%	no data
7.83%	Baron Capital Group, Inc.	2,764,395	US$71.9m	2.55%	0.17%
7.63%	William Blair Investment Management, LLC	2,691,161	US$70.0m	39.6%	0.08%
5.57%	Macquarie Investment Management Business Trust	1,966,356	US$51.1m	2.6%	0.06%
5.33%	The Vanguard Group, Inc.	1,879,531	US$48.9m	5.36%	no data
3.64%	AllianceBernstein L.P.	1,282,769	US$33.4m	3,410%	0.01%
3.26%	Fred Alger Management, LLC	1,151,191	US$29.9m	16.2%	0.11%
3.03%	James Price	1,070,836	US$27.8m	0%	no data
2.93%	Royce & Associates, LP	1,034,349	US$26.9m	21.3%	0.24%
2.71%	Managed Account Advisors LLC	957,130	US$24.9m	-43%	no data
2.56%	Legal & General Investment Management Limited	904,154	US$23.5m	12.9%	0.01%
2.31%	Janus Henderson Group plc	813,748	US$21.2m	19.6%	0.01%
2.29%	BB&T Trust	807,927	US$21.0m	-1.15%	0.03%
2.25%	Millennium Management LLC	793,747	US$20.6m	-47.2%	0.02%
2.17%	Geode Capital Management, LLC	765,027	US$19.9m	3.7%	no data
2.03%	State Street Global Advisors, Inc.	716,908	US$18.6m	2.67%	no data
1.97%	Teachers Insurance and Annuity Association-College Retirement Equities Fund	693,978	US$18.0m	46%	no data
1.95%	Richard Perlman	688,647	US$17.9m	0%	no data
1.94%	Dimensional Fund Advisors LP	686,124	US$17.8m	-4.35%	no data
1.87%	Stephens Investment Management Group, LLC	660,928	US$17.2m	0.63%	0.23%
1.61%	Summit Creek Advisors, LLC	568,549	US$14.8m	-9.26%	2.32%
1.43%	Deka Investment GmbH	505,697	US$13.1m	7.41%	0.01%
1.27%	Jackson National Asset Management, LLC	447,121	US$11.6m	-10.5%	0.12%
1.09%	Marshall Wace LLP	383,661	US$10.0m	245%	0.01%
0.98%	Northern Trust Global Investments	346,262	US$9.0m	-42.5%	no data

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2025/10/31 18:49
End of Day Share Price	2025/10/31 00:00
Earnings	2025/06/30
Annual Earnings	2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Montrose Environmental Group, Inc. is covered by 14 analysts. 5 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
William Grippin	Barclays
Andrew Grobler	BNP Paribas
Thomas Burlton	BNP Paribas