| 2025 | The Lamm Family Foundation | 990PF | Director | 5 | $30,000 | $0 | View return |
| 2024 | The Lamm Family Foundation | 990PF | Director | 5 | $0 | $0 | View return |
| 2024 | Os Complex Inc. | 990 | Member | 0.1 | $0 | $0 | View return |
| 2023 | The Lamm Family Foundation | 990PF | Director | 5 | $0 | $0 | View return |
| 2023 | Lake Highland Preparatory School Inc. | 990 | Trustee | 1.75 | $0 | $0 | View return |
| 2023 | Os Complex Inc. | 990 | Member | 0.1 | $0 | $0 | View return |
| 2022 | The Lamm Family Foundation | 990PF | Director | 5 | $0 | $0 | View return |
| 2022 | The Als Association Minnesota North Dakota South Dakota Chapter | 990 | Board Member | 1 | $0 | $0 | View return |
| 2022 | Os Complex Inc. | 990 | Member (Left 07/1/22) | 0.1 | $0 | $0 | View return |
| 2022 | Lake Highland Preparatory School Inc. | 990 | Trustee | 1.75 | $0 | $0 | View return |
| 2021 | The Als Association Minnesota North Dakota South Dakota Chapter | 990 | Board Member | 1 | $0 | $0 | View return |
| 2021 | The Lamm Family Foundation | 990PF | Director | 5 | $0 | $0 | View return |
| 2021 | David Lamm Foundation Inc. | 990EZ | President | 2 | $0 | $0 | View return |
| 2021 | Os Complex Inc. | 990 | Member | 0.1 | $0 | $0 | View return |
| 2021 | Lake Highland Preparatory School Inc. | 990 | Trustee | 3.75 | $0 | $0 | View return |
| 2020 | The Lamm Family Foundation | 990PF | Director | 5 | $0 | $0 | View return |
| 2020 | David Lamm Foundation Inc. | 990EZ | President | 2 | $0 | $0 | View return |
| 2020 | The Als Association Minnesota North Dakota South Dakota Chapter | 990 | Board Member | 2 | $0 | $0 | View return |
| 2020 | Os Complex Inc. | 990 | Member | 0.1 | $0 | $0 | View return |
| 2020 | Lake Highland Preparatory School Inc. | 990 | Trustee | 3.75 | $0 | $0 | View return |
| 2019 | David Lamm Foundation Inc. | 990EZ | President | 5 | $0 | $0 | View return |
| 2019 | The Als Association Minnesota North Dakota South Dakota Chapter | 990 | Board Member | 1 | $0 | $0 | View return |
| 2019 | The Lamm Family Foundation | 990PF | Director | 5 | $0 | $0 | View return |
| 2019 | Lake Highland Preparatory School Inc. | 990 | Trustee | 0.75 | $0 | $0 | View return |
| 2019 | Os Complex Inc. | 990 | Treasurer/Member (Began 07/2019) | 0.1 | $0 | $0 | View return |
| 2018 | The Als Association Minnesota North Dakota South Dakota Chapter | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | The Lamm Family Foundation | 990PF | Director | 5 | $0 | $0 | View return |
| 2018 | Lake Highland Preparatory School Inc. | 990 | Trustee | 0.75 | $0 | $0 | View return |
| 2017 | The Als Association Minnesota North Dakota South Dakota Chapter | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | Lake Highland Preparatory School Inc. | 990 | Trustee | 0.7 | $0 | $0 | View return |
| 2016 | The Lamm Family Foundation | 990PF | Director | 5 | $20,000 | $0 | View return |
| 2016 | We Are Woodlands | 990EZ | CEO | 0 | $0 | - | View return |
| 2016 | The Als Association Minnesota North Dakota South Dakota Chapter | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | Lake Highland Preparatory School Inc. | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2015 | The Lamm Family Foundation | 990PF | Director | 5 | $0 | $0 | View return |
| 2015 | The Als Association Minnesota North Dakota South Dakota Chapter | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | Lake Highland Preparatory School Inc. | 990 | Trustee | 0.5 | $0 | $0 | View return |
| 2014 | The Als Association Minnesota North Dakota South Dakota Chapter | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | We Are Woodlands | 990EZ | CEO | 0 | $0 | - | View return |
| 2014 | Lake Highland Preparatory School Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2013 | Bridgewater Volunteer Rescue Squad Inc. | 990 | Corresponding Secretary | 15 | $0 | $0 | View return |
| 2013 | The Als Association Minnesota North Dakota South Dakota Chapter | 990 | Board Member | 1 | $0 | $0 | View return |
| 2013 | Lake Highland Preparatory School Inc. | 990 | Trustee(Term Beg 2/14) | 1 | $0 | $0 | View return |