Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in MEG held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 3.2M | $69.0M | -2.8% | 8.711% | 0.00% |
| 2 | BAMCO INC /NY/ | 2.2M | $47.5M | +0.4% | 5.994% | 0.14% |
| 3 | GOLDMAN SACHS GROUP INC | 2.0M | $42.9M | +13.1% | 5.421% | 0.00% |
| 4 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 1.5M | $33.5M | -7.4% | 4.235% | 0.06% |
| 5 | UBS ASSET MANAGEMENT AMERICAS INC | 1.5M | $33.2M | +4.0% | 4.190% | 0.01% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 1.4M | $31.4M | — | 3.971% | 0.00% |
| 7 | PRINCIPAL FINANCIAL GROUP INC | 1.3M | $29.5M | +5.2% | 3.722% | 0.02% |
| 8 | ALLIANCEBERNSTEIN L.P. | 1.1M | $28.1M | +26.6% | 3.127% | 0.01% |
| 9 | ROYCE & ASSOCIATES LP | 955K | $20.9M | +21.2% | 2.640% | 0.21% |
| 10 | Amundi | 880K | $19.2M | — | 2.433% | 0.01% |
| 11 | JANUS HENDERSON GROUP PLC | 867K | $19.0M | +13.5% | 2.397% | 0.01% |
| 12 | DIMENSIONAL FUND ADVISORS LP | 859K | $18.8M | +23.0% | 2.374% | 0.00% |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 804K | $17.6M | +3.7% | 2.222% | 0.00% |
| 14 | TRUIST FINANCIAL CORP | 795K | $17.4M | -1.1% | 2.199% | 0.03% |
| 15 | Legal & General Group Plc | 754K | $16.5M | +18.0% | 2.084% | 0.00% |
| 16 | STATE STREET CORP | 728K | $15.9M | +0.4% | 2.014% | 0.00% |
| 17 | Stephens Investment Management Group LLC | 695K | $15.2M | -1.4% | 1.921% | 0.21% |
| 18 | FMR LLC | 568K | $12.4M | +25.5% | 1.571% | 0.00% |
| 19 | Summit Creek Advisors LLC | 511K | $11.2M | -18.7% | 1.413% | 2.30% |
| 20 | MORGAN STANLEY | 509K | $11.1M | -9.1% | 1.407% | 0.00% |
| 21 | Avalon Trust Co | 436K | $9.6M | +2.1% | 1.207% | 0.66% |
| 22 | Allspring Global Investments Holdings, LLC | 394K | $8.6M | -3.5% | 1.089% | 0.01% |
| 23 | FRED ALGER MANAGEMENT, LLC | 388K | $8.5M | -63.7% | 1.073% | 0.04% |
| 24 | BANK OF AMERICA CORP /DE/ | 373K | $8.2M | -7.4% | 1.030% | 0.00% |
| 25 | Fisher Asset Management, LLC | 353K | $7.7M | 0.0% | 0.975% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in MEG — a direct measure of their conviction.
Filings activity in MEG during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 169 | 8.2% | 126.55% | 12.80 pp | $716M | 9.2% |
| Q4 2025 | 184 | +1.1% | 139.35% | 14.29 pp | $788M | 9.3% |
| Q3 2025 | 182 | +14% | 153.64% | +22.78 pp | $869M | +17% |
| Q2 2025 | 159 | 2.5% | 130.86% | +46.26 pp | $740M | +55% |
| Q1 2025 | 163 | 1.2% | 84.60% | 22.93 pp | $479M | 21% |
| Q4 2024 | 165 | 8.8% | 107.53% | 39.32 pp | $608M | 27% |
| Q3 2024 | 181 | +4.0% | 146.85% | 53.14 pp | $831M | 40% |
| Q2 2024 | 174 | — | 199.99% | — | $1.38B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying MEG stock.
Based on Q1 2026 13F filings, institutional ownership of Montrose Environmental Group, Inc. stands at 126.6%, held across 169 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of MEG, with approximately 3,150,760 shares worth $0.07B as of Q1 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of MEG, including Fisher Asset Management, LLC.
Our composite Smart Money Score for MEG is 32 out of 100 (Bearish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
27 institutions opened new positions in MEG during Q1 2026, while 42 fully exited. 34 added to existing positions and 106 trimmed.
MEG institutional ownership fell by 12.80 percentage points quarter-over-quarter, with a net change of -15 holders.
The top 10 institutions account for 49.6% of all reported 13F value in MEG, and the top 25 account for 77.2%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Montrose Environmental Group, Inc. (MEG) Institutional Ownership