Montrose Environmental Group, Inc.
US ˙ NYSE ˙ US6151111019
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT

SecurityMEG / Montrose Environmental Group, Inc.
InstitutionBarclays Plc
Latest Disclosed Ownership73,486 shares
Latest Disclosed Value $ 1,824,658
Barclays Plc reports 47.84% increase in ownership of MEG / Montrose Environmental Group, Inc.

On February 13, 2026 - Barclays Plc filed a 13F-HR form disclosing ownership of 73,486 shares of Montrose Environmental Group, Inc. (US:MEG) valued at $1,824,657 USD as of December 31, 2025. The entity filed a previous 13F-HR/A on March 31, 2026 disclosing 49,705 shares of Montrose Environmental Group, Inc.. This represents a change in shares of 47.84% during the quarter. The current value of the position is $1,626,980 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-02-13 2025-12-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 73,486 23,781 47.84 1,825 33.72 0.0004
2026-03-31 2025-09-30 13F/A-3 MONTROSE ENVIRONMENTAL GROUP COM 615111101 49,705 -11,562 -18.87 1,365 1.72 0.0003
2026-03-19 2025-09-30 13F/A-2 MONTROSE ENVIRONMENTAL GROUP COM 615111101 53,575 -7,692 1,409 0.0004
2025-11-12 2025-09-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 49,705 -11,562 1,365 0.0003
2026-02-27 2025-06-30 13F/A-2 MONTROSE ENVIRONMENTAL GROUP COM 615111101 61,267 20,283 49.49 1,341 129.62 0.0003
2025-08-14 2025-06-30 13F/A-1 MONTROSE ENVIRONMENTAL GROUP COM 615111101 61,267 20,283 1 0.0003
2025-08-13 2025-06-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 61,267 20,283 1 0.0001
2026-03-17 2025-03-31 13F/A-1 MONTROSE ENVIRONMENTAL GROUP COM 615111101 40,984 -16,245 -28.39 584 -44.96 0.0002
2025-05-15 2025-03-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 40,984 -16,245 1 0.0002
2026-03-19 2024-12-31 13F/A-1 MONTROSE ENVIRONMENTAL GROUP COM 615111101 57,229 3,654 6.82 1,062 -24.70 0.0003
2025-02-13 2024-12-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 57,229 3,654 1 0.0003
2026-03-31 2024-09-30 13F/A-2 MONTROSE ENVIRONMENTAL GROUP COM 615111101 53,575 42,297 375.04 1,409 180.68 0.0004
2024-11-19 2024-09-30 13F/A-1 MONTROSE ENVIRONMENTAL GROUP COM 615111101 53,575 42,297 1 0.0004
2024-11-15 2024-09-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 53,575 42,297 1 0.0004
2026-03-23 2024-06-30 13F/A-1 MONTROSE ENVIRONMENTAL GROUP COM 615111101 11,278 -17,719 -61.11 503 -55.77 0.0002
2024-08-14 2024-06-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 11,278 -17,719 1 0.0002
2026-03-24 2024-03-31 13F/A-1 MONTROSE ENVIRONMENTAL GROUP COM 615111101 28,997 -20,897 -41.88 1,136 -29.20 0.0004
2024-05-15 2024-03-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 28,997 -20,897 1 0.0004
2026-03-25 2023-12-31 13F/A-1 MONTROSE ENVIRONMENTAL GROUP COM 615111101 49,894 35,097 237.19 1,603 271.06 0.0006
2024-02-15 2023-12-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 49,894 35,097 2 0.0006
2026-03-26 2023-09-30 13F/A-1 MONTROSE ENVIRONMENTAL GROUP COM 615111101 14,797 -511 -3.34 433 -32.92 0.0003
2023-11-07 2023-09-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 14,797 -511 0 0.0003
2026-03-30 2023-06-30 13F/A-2 MONTROSE ENVIRONMENTAL GROUP COM 615111101 15,308 -1,967 -11.39 645 4.55 0.0004
2023-09-20 2023-06-30 13F/A-1 MONTROSE ENVIRONMENTAL GROUP COM 615111101 15,308 -1,967 1 0.0004
2023-08-03 2023-06-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 15,308 -1,967 1 0.0004
2026-03-30 2023-03-31 13F/A-1 MONTROSE ENVIRONMENTAL GROUP COM 615111101 17,275 6,373 58.46 616 27.54 0.0003
2023-05-04 2023-03-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 17,275 6,373 1 0.0003
2026-03-30 2022-12-31 13F/A-1 MONTROSE ENVIRONMENTAL GROUP COM 615111101 10,902 6,670 157.61 484 237.76 0.0002
2023-02-13 2022-12-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 10,902 6,670 0 0.0002
2022-11-03 2022-09-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 4,232 -214 -4.81 143 -5.30 0.0002
2022-08-12 2022-06-30 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 4,446 -3,521 -44.19 151 -64.13 0.0001
2022-05-16 2022-03-31 13F MONTROSE ENVIRONMENTAL GROUP COM 615111101 7,967 7,967 421 0.0003
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.