| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 02/28/2022 | Montrose Environmental Group, Inc. | | Grant | Stock Option (Right to Buy) | 35.5k | $44.11 | $1.6M | | 02/28/2022 |
| 12/16/2021 | Montrose Environmental Group, Inc. | | Grant | Common Stock | 234.9k | $0.00 | $0 | | 12/16/2021 |
| 12/16/2021 | Montrose Environmental Group, Inc. | | Grant | Stock Appreciation Right | 330k | $66.79 | $22M | | 12/16/2021 |
| 09/22/2021 | Montrose Environmental Group, Inc. | | Sale | Common Stock | 1.6k | $61.03 | $97.4k | | 09/21/2021 |
| 09/22/2021 | Montrose Environmental Group, Inc. | | Sale | Common Stock | 981 | $61.89 | $60.7k | | 09/21/2021 |
| 09/22/2021 | Montrose Environmental Group, Inc. | | Sale | Common Stock | 1.5k | $61.04 | $90.4k | | 09/21/2021 |
| 09/22/2021 | Montrose Environmental Group, Inc. | | Sale | Common Stock | 996 | $61.90 | $61.7k | | 09/21/2021 |
| 09/22/2021 | Montrose Environmental Group, Inc. | | Sale | Common Stock | 961 | $61.08 | $58.7k | | 09/21/2021 |
| 09/22/2021 | Montrose Environmental Group, Inc. | | Sale | Common Stock | 494 | $61.95 | $30.6k | | 09/21/2021 |
| 09/22/2021 | Montrose Environmental Group, Inc. | | Exercise | Stock Option (Right to Buy) | 2.6k | $6.03 | $15.5k | | 09/21/2021 |
| 09/22/2021 | Montrose Environmental Group, Inc. | | Exercise | Stock Option (Right to Buy) | 2.5k | $24.00 | $59.4k | | 09/21/2021 |
| 09/22/2021 | Montrose Environmental Group, Inc. | | Exercise | Stock Option (Right to Buy) | 1.5k | $31.60 | $46k | | 09/21/2021 |
| 09/21/2021 | Montrose Environmental Group, Inc. | | Sale | Common Stock | 21.7k | $60.11 | $1.3M | | 09/21/2021 |
| 09/21/2021 | Montrose Environmental Group, Inc. | | Sale | Common Stock | 8.5k | $60.10 | $508k | | 09/21/2021 |
| 09/21/2021 | Montrose Environmental Group, Inc. | | Sale | Common Stock | 3.7k | $60.12 | $221.1k | | 09/21/2021 |
| 09/21/2021 | Montrose Environmental Group, Inc. | | Exercise | Stock Option (Right to Buy) | 21.7k | $6.03 | $130.6k | | 09/21/2021 |
| 09/21/2021 | Montrose Environmental Group, Inc. | | Exercise | Stock Option (Right to Buy) | 8.5k | $24.00 | $202.9k | | 09/21/2021 |
| 09/21/2021 | Montrose Environmental Group, Inc. | | Exercise | Stock Option (Right to Buy) | 3.7k | $31.60 | $116.2k | | 09/21/2021 |
| 09/17/2021 | Montrose Environmental Group, Inc. | | Sale | Common Stock | 7.1k | $60.08 | $426.3k | | 09/16/2021 |
| 09/17/2021 | Montrose Environmental Group, Inc. | | Sale | Common Stock | 600 | $60.17 | $36.1k | | 09/16/2021 |
| 09/17/2021 | Montrose Environmental Group, Inc. | | Sale | Common Stock | 300 | $60.18 | $18.1k | | 09/16/2021 |
| 09/17/2021 | Montrose Environmental Group, Inc. | | Exercise | Stock Option (Right to Buy) | 7.1k | $6.03 | $42.8k | | 09/16/2021 |
| 09/17/2021 | Montrose Environmental Group, Inc. | | Exercise | Stock Option (Right to Buy) | 600 | $24.00 | $14.4k | | 09/16/2021 |
| 09/17/2021 | Montrose Environmental Group, Inc. | | Exercise | Stock Option (Right to Buy) | 300 | $31.60 | $9.5k | | 09/16/2021 |
| 09/16/2021 | Montrose Environmental Group, Inc. | | Sale | Common Stock | 1.8k | $60.00 | $109.7k | | 09/16/2021 |
| 09/16/2021 | Montrose Environmental Group, Inc. | | Sale | Common Stock | 2.1k | $60.00 | $126.6k | | 09/16/2021 |
| 09/16/2021 | Montrose Environmental Group, Inc. | | Sale | Common Stock | 865 | $60.00 | $51.9k | | 09/16/2021 |
| 09/16/2021 | Montrose Environmental Group, Inc. | | Exercise | Stock Option (Right to Buy) | 1.8k | $6.03 | $11k | | 09/16/2021 |
| 09/16/2021 | Montrose Environmental Group, Inc. | | Exercise | Stock Option (Right to Buy) | 2.1k | $24.00 | $50.6k | | 09/16/2021 |
| 09/16/2021 | Montrose Environmental Group, Inc. | | Exercise | Stock Option (Right to Buy) | 865 | $31.60 | $27.3k | | 09/16/2021 |
| 08/17/2021 | Montrose Environmental Group, Inc. | | Purchase | Common Stock | 2k | $44.53 | $89.1k | | 08/17/2021 |
| 03/18/2021 | Montrose Environmental Group, Inc. | | Grant | Stock Option (Right to Buy) | 10.6k | $47.72 | $504.1k | | 03/18/2021 |
| 01/01/2021 | Montrose Environmental Group, Inc. | | Grant | Stock Option (Right to Buy) | 18.1k | $30.96 | $561.9k | | 01/01/2021 |
| 07/22/2020 | Montrose Environmental Group, Inc. | | Grant | Stock Option (Right to Buy) | 71.5k | $15.00 | $1.1M | | 07/22/2020 |
| 11/02/2010 | ExamWorks Group, Inc. | EXAM | Conversion | Common Stock | 7.8k | $0.00 | $0 | | 11/02/2010 |
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