Montrose Environmental Group, Inc. - Common Stock, par value $0.000004 share (MEG)
CUSIP: 615111101
Q1 2026 13F Holders as of 31 Mar 2026
- Type / Class
- Equity / Common Stock, par value $0.000004 share
- Shares outstanding
- 36,526,140
- Total 13F shares
- 18,401,836
- Share change
- +606,755
- Total reported value
- $402,594,342
- Price per share
- $21.89
- Number of holders
- 100
- Value change
- +$12,165,634
- Number of buys
- 41
- Number of sells
- 58
Quarterly Holders Quick Answers
What is CUSIP 615111101?
CUSIP 615111101 identifies MEG - Montrose Environmental Group, Inc. - Common Stock, par value $0.000004 share in SEC institutional holdings data.
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- Previous quarter: Q4 2025
Recent filing periods for CUSIP 615111101:
Top shareholders of MEG - Montrose Environmental Group, Inc. - Common Stock, par value $0.000004 share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
|
Company |
8.9%
|
3,240,378
|
$80,458,587 | — | 31 Dec 2025 | |
| BAMCO INC /NY/ |
13D/G
13F
|
Baron Capital Group, Inc. · Company |
6.1%
|
2,160,463
|
$59,326,314 | -$14,697,114 | 30 Sep 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
5.4%
|
1,986,620
|
$49,327,774 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
4.7%
|
1,733,003
|
$43,030,464 | — | 31 Dec 2025 | |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. |
13F
|
Company |
4.5%
|
1,653,379
|
$41,053,000 | — | 31 Dec 2025 | |
| GOLDMAN SACHS ASSET MANAGEMENT, L.P. |
13D/G
|
— |
5%
|
1,826,307
|
$39,977,860 | $0 | 31 Mar 2026 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
4%
|
1,457,574
|
$36,191,562 | — | 31 Dec 2025 | |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC |
13D/G
|
— |
3.7%
|
1,315,018
|
$36,110,394 | -$27,532,549 | 30 Sep 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
3.5%
|
1,279,714
|
$31,775,298 | — | 31 Dec 2025 | |
| James K. Price |
3/4/5
|
Director |
2.9%
|
1,075,266
|
$26,697,349 | — | 01 Jan 2026 | |
| FRED ALGER MANAGEMENT, LLC |
13F
|
Company |
2.9%
|
1,068,555
|
$26,532,220 | — | 31 Dec 2025 | |
| Deutsche Girozentrale DekaBank |
13F
|
Individual |
1.4%
|
505,697
|
$23,970,000 | — | 31 Dec 2025 | |
| MANAGED ACCOUNT ADVISORS LLC |
13D/G
|
— |
2.7%
|
957,130
|
$22,645,696 | -$19,773,845 | 30 Jun 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
2.4%
|
893,428
|
$22,183,817 | — | 31 Dec 2025 | |
| TRUIST FINANCIAL CORP |
13F
|
Company |
2.2%
|
803,926
|
$19,961,483 | — | 31 Dec 2025 | |
| ROYCE & ASSOCIATES LP |
13F
|
Company |
2.2%
|
787,535
|
$19,554,494 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.1%
|
774,877
|
$19,243,608 | — | 31 Dec 2025 | |
| JANUS HENDERSON GROUP PLC |
13F
|
Company |
2.1%
|
763,892
|
$18,967,220 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
2%
|
725,742
|
$18,020,174 | — | 31 Dec 2025 | |
| Stephens Investment Management Group LLC |
13F
|
Company |
1.9%
|
704,702
|
$17,497,751 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
1.9%
|
698,089
|
$17,335,979 | — | 31 Dec 2025 | |
| Legal & General Group Plc |
13F
|
Company |
1.7%
|
638,630
|
$15,857,184 | — | 31 Dec 2025 | |
| Summit Creek Advisors LLC |
13F
|
Company |
1.7%
|
628,786
|
$15,612,756 | — | 31 Dec 2025 | |
| ALGER ASSOCIATES INC |
13D/G
|
— |
3%
|
1,013,896
|
$15,502,470 | $0 | 31 Dec 2024 | |
| Richard E. Perlman |
3/4/5
|
Director |
1.7%
|
618,616
|
$14,364,263 | — | 13 Mar 2026 | |
| ALGERT GLOBAL LLC |
13F
|
Company |
1.6%
|
566,855
|
$14,075,000 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
1.5%
|
559,918
|
$13,902,797 | — | 31 Dec 2025 | |
| Nuveen, LLC |
13F
|
Company |
1.4%
|
516,952
|
$12,835,918 | — | 31 Dec 2025 | |
| FMR LLC |
13F
|
Company |
1.2%
|
452,856
|
$11,244,414 | — | 31 Dec 2025 | |
| Avalon Trust Co |
13F
|
Company |
1.2%
|
427,549
|
$10,616,042 | — | 31 Dec 2025 | |
| Allspring Global Investments Holdings, LLC |
13F
|
Company |
1.1%
|
408,364
|
$10,139,678 | — | 31 Dec 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
1.1%
|
402,596
|
$9,996,459 | — | 31 Dec 2025 | |
| SILVERCREST ASSET MANAGEMENT GROUP LLC |
13F
|
Company |
0.97%
|
354,434
|
$8,800,596 | — | 31 Dec 2025 | |
| Fisher Asset Management, LLC |
13F
|
Company |
0.97%
|
352,569
|
$8,754,287 | — | 31 Dec 2025 | |
| BLAIR WILLIAM & CO/IL |
13F
|
Company |
0.93%
|
340,869
|
$8,463,777 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.89%
|
326,129
|
$8,097,782 | — | 31 Dec 2025 | |
| PEREGRINE CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.77%
|
280,171
|
$6,956,646 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.75%
|
274,477
|
$6,815,264 | — | 31 Dec 2025 | |
| ArrowMark Colorado Holdings LLC |
13F
|
Company |
0.74%
|
269,413
|
$6,689,525 | — | 31 Dec 2025 | |
| Vijay Manthripragada |
3/4/5
|
President & CEO, Director |
0.65%
|
236,788
|
$6,016,783 | -$3,367,785 | 13 Mar 2026 | |
| Nasym Afsari |
3/4/5
|
General Counsel and Secretary |
0.56%
|
204,878
|
$5,811,979 | -$1,235,696 | 02 Mar 2026 | |
| Peter Graham |
3/4/5
|
Director |
0.62%
|
226,689
|
$5,628,370 | — | 01 Jan 2026 | |
| AQR CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.59%
|
215,738
|
$5,356,774 | — | 31 Dec 2025 | |
| Granahan Investment Management, LLC |
13F
|
Company |
0.55%
|
199,317
|
$4,949,041 | — | 31 Dec 2025 | |
| Russell Investments Group, Ltd. |
13F
|
Company |
0.54%
|
198,017
|
$4,916,760 | — | 31 Dec 2025 | |
| Trexquant Investment LP |
13F
|
Company |
0.48%
|
174,541
|
$4,333,853 | — | 31 Dec 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.47%
|
172,754
|
$4,289,482 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
0.47%
|
170,650
|
$4,237,239 | — | 31 Dec 2025 | |
| TUDOR INVESTMENT CORP ET AL |
13F
|
Company |
0.46%
|
168,699
|
$4,188,796 | — | 31 Dec 2025 | |
| Jose Miguel Fernandez de Castro |
3/4/5
|
Director |
0.45%
|
162,892
|
$4,044,380 | — | 01 Jan 2026 |
Institutional Holders of Montrose Environmental Group, Inc. - Common Stock, par value $0.000004 share (MEG) as of Q1 2026
As of 31 Mar 2026,
Montrose Environmental Group, Inc. - Common Stock, par value $0.000004 share (MEG) was held by
100 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
18,401,836 shares.
The largest 10 holders included
BlackRock, Inc., UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC, VANGUARD CAPITAL MANAGEMENT LLC, PRINCIPAL FINANCIAL GROUP INC, ROYCE & ASSOCIATES LP, DIMENSIONAL FUND ADVISORS LP, TRUIST FINANCIAL CORP, Legal & General Group Plc, Stephens Investment Management Group LLC, and Summit Creek Advisors LLC.
This page lists
100
institutional shareholders reporting positions in this security
for the Q1 2026 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
183
Q1 2026 holders
100
Holder diff
-83
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 Value $ | Q1 2026 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.