| 3 Apr 2020 | Polar Asset Management Partners Inc. | 10 percent owner | Disposed | 0 | $0.00 |
| 6 May 2019 | Tortoise Sponsor LLC | 10 percent owner | J-Other | Disposed | 643,520 | $0.00 |
| 6 Mar 2019 | Schnitzer Steven C. | VP, Gen. Counsel and Secretary | P-Purchase | Acquired | 5,000 | $10.00 |
| 6 Mar 2019 | Schnitzer Steven C. | VP, Gen. Counsel and Secretary | P-Purchase | Acquired | 2,500 | $0.00 |
| 6 Mar 2019 | SEMPLE FRANK M | director | J-Other | Acquired | 40,000 | $0.00 |
| 6 Mar 2019 | Cubbage Vincent T. | director, officer: Pres., CEO & Chairman of BOD | P-Purchase | Acquired | 25,000 | $10.00 |