| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BAMCO INC /NY/ | 6.1% | -21% | $59,326,314 | -$14,697,114 | 2,160,463 | -20% | Baron Capital Group, Inc. | 30 Sep 2025 |
| MACQUARIE GROUP LTD | 5.5% | $29,303,560 | 1,916,518 | Macquarie Group Limited | 31 Mar 2025 | |||
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 3.7% | -44% | $36,110,394 | -$27,532,549 | 1,315,018 | -43% | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 30 Sep 2025 |
| ALGER ASSOCIATES INC | 3% | $15,502,470 | 1,013,896 | Alger Associates, Inc. | 31 Dec 2024 | |||
| MANAGED ACCOUNT ADVISORS LLC | 2.7% | -50% | $22,645,696 | -$19,773,845 | 957,130 | -47% | MANAGED ACCOUNT ADVISORS, LLC | 30 Jun 2025 |
As of 30 Sep 2025, 182 institutional investors reported holding 32,481,514 shares of Montrose Environmental Group, Inc. - Common Stock (MEG). This represents 92% of the company’s total 35,301,683 outstanding shares.
The largest institutional shareholders of Montrose Environmental Group, Inc. - Common Stock (MEG) together control 70% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9% | 3,186,718 | +11% | 0% | $87,507,277 |
| BAMCO INC /NY/ | 6.1% | 2,160,463 | -22% | 0.16% | $59,326,314 |
| VANGUARD GROUP INC | 5.5% | 1,929,183 | +2.6% | 0% | $52,975,364 |
| MACQUARIE GROUP LTD | 5.2% | 1,844,632 | -6.2% | 0.06% | $50,654,000 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 3.7% | 1,310,251 | -43% | 0.09% | $35,979,492 |
| UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC | 3.6% | 1,277,719 | -27% | 0.01% | $35,086,161 |
| FRED ALGER MANAGEMENT, LLC | 3.3% | 1,149,696 | -0.13% | 0.12% | $31,570,652 |
| ALLIANCEBERNSTEIN L.P. | 2.8% | 987,987 | -23% | 0.01% | $27,130,123 |
| BANK OF AMERICA CORP /DE/ | 2.6% | 930,612 | -17% | 0% | $25,554,606 |
| ROYCE & ASSOCIATES LP | 2.5% | 875,499 | -15% | 0.24% | $24,041,203 |
| TRUIST FINANCIAL CORP | 2.3% | 805,813 | -0.26% | 0.03% | $22,127,625 |
| JANUS HENDERSON GROUP PLC | 2.3% | 795,732 | -2.2% | 0.01% | $21,850,873 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.2% | 764,885 | -0.02% | 0% | $21,006,739 |
| GOLDMAN SACHS GROUP INC | 2.1% | 757,233 | +163% | 0% | $20,793,619 |
| STATE STREET CORP | 2.1% | 726,006 | +1.3% | 0% | $19,936,125 |
| Stephens Investment Management Group LLC | 1.9% | 660,928 | +0.63% | 0.24% | $18,149,083 |
| Legal & General Group Plc | 1.7% | 615,919 | -32% | 0% | $16,913,137 |
| Nuveen, LLC | 1.7% | 610,892 | -13% | 0% | $16,775,094 |
| DIMENSIONAL FUND ADVISORS LP | 1.7% | 607,090 | -12% | 0% | $16,671,469 |
| Summit Creek Advisors LLC | 1.6% | 568,549 | -9.3% | 2.3% | $15,612,356 |
| DekaBank Deutsche Girozentrale | 1.4% | 505,697 | 0% | 0.02% | $13,904,000 |
| MORGAN STANLEY | 1.4% | 484,499 | +107% | 0% | $13,304,373 |
| FMR LLC | 1.2% | 437,553 | +46% | 0% | $12,015,191 |
| JANE STREET GROUP, LLC | 1.1% | 403,378 | +730% | 0.01% | $11,076,760 |
| NORTHERN TRUST CORP | 0.99% | 349,075 | +0.81% | 0% | $9,585,600 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 98,383 | $2,453,226 | +$914,623 | $24.83 | 8 |
| 2025 Q3 | 32,481,514 | $891,931,659 | -$42,853,013 | $27.46 | 182 |
| 2025 Q2 | 34,086,605 | $745,973,525 | +$2,298,254 | $21.89 | 156 |
| 2025 Q1 | 34,260,470 | $488,645,404 | -$1,543,592 | $14.26 | 161 |
| 2024 Q4 | 33,684,566 | $624,152,195 | -$15,982,563 | $18.55 | 162 |
| 2024 Q3 | 33,241,518 | $874,533,856 | -$64,374,860 | $26.30 | 177 |
| 2024 Q2 | 32,671,560 | $1,456,250,748 | +$271,850,943 | $44.56 | 170 |
| 2024 Q1 | 26,664,852 | $1,043,741,328 | +$14,905,585 | $39.17 | 164 |
| 2023 Q4 | 26,326,387 | $845,820,682 | -$7,103,734 | $32.13 | 156 |
| 2023 Q3 | 26,593,444 | $777,859,894 | -$20,210,613 | $29.26 | 150 |
| 2023 Q2 | 27,101,551 | $1,126,694,290 | -$21,677,142 | $42.12 | 140 |
| 2023 Q1 | 27,825,100 | $991,905,571 | -$747,187 | $35.67 | 126 |
| 2022 Q4 | 27,600,410 | $1,224,695,916 | +$15,663,282 | $44.39 | 130 |
| 2022 Q3 | 27,014,397 | $909,272,726 | +$10,775,907 | $33.65 | 123 |
| 2022 Q2 | 26,664,744 | $900,190,138 | +$11,428,213 | $33.76 | 125 |
| 2022 Q1 | 26,215,670 | $1,387,348,574 | +$27,887,612 | $52.93 | 137 |
| 2021 Q4 | 25,495,607 | $1,797,652,113 | +$95,748,782 | $70.51 | 140 |
| 2021 Q3 | 24,348,237 | $1,503,149,151 | +$349,353,957 | $61.74 | 142 |
| 2021 Q2 | 18,735,655 | $1,004,921,606 | +$47,902,761 | $53.66 | 120 |
| 2021 Q1 | 17,732,408 | $889,566,728 | +$104,436,630 | $50.19 | 109 |
| 2020 Q4 | 15,956,764 | $494,079,206 | +$63,824,843 | $30.96 | 98 |
| 2020 Q3 | 14,954,968 | $356,262,393 | +$356,262,392 | $23.82 | 70 |