| Date | Name | Title | Type | Security | Shares | Price | Value | Ownership | Reported |
| 06/29/2023 | DiSanto Frederick D. | Director | Purchase | common Stock, par value $0.01 per share | 7.4k | $2.99 | $22.1k | | 06/28/2023 |
| 06/29/2023 | DiSanto Frederick D. | Director | Purchase | common Stock, par value $0.01 per share | 7.4k | $2.99 | $22.1k | | 06/28/2023 |
| 06/28/2023 | DiSanto Frederick D. | Director | Purchase | common Stock, par value $0.01 per share | 918 | $2.85 | $2.6k | | 06/28/2023 |
| 06/28/2023 | DiSanto Frederick D. | Director | Purchase | common Stock, par value $0.01 per share | 918 | $2.85 | $2.6k | | 06/28/2023 |
| 05/19/2023 | DiSanto Frederick D. | Director | Purchase | common Stock, par value $0.01 per share | 4.8k | $3.07 | $14.8k | | 05/18/2023 |
| 05/18/2023 | DiSanto Frederick D. | Director | Grant | Common Stock | 12.7k | $0.00 | $0 | | 05/18/2023 |
| 05/18/2023 | DiSanto Frederick D. | Director | Grant | common Stock, par value $0.01 per share | 12.7k | $0.00 | $0 | | 05/18/2023 |
| 05/18/2023 | DiSanto Frederick D. | Director | Purchase | common Stock, par value $0.01 per share | 5.2k | $2.76 | $14.5k | | 05/18/2023 |
| 05/18/2023 | PFORZHEIMER CARL H II | Director | Grant | Common Stock | 12.7k | $0.00 | $0 | | 05/18/2023 |
| 05/18/2023 | LIEBERMAN WILLIAM K | Director | Grant | Common Stock | 12.7k | $0.00 | $0 | | 05/18/2023 |
| 05/18/2023 | PAUL STEPHEN E | Director | Grant | Common Stock | 12.7k | $0.00 | $0 | | 05/18/2023 |
| 05/18/2023 | PAUL LAURENCE E | Director | Grant | Common Stock | 12.7k | $0.00 | $0 | | 05/18/2023 |
| 05/18/2023 | GERMAN MICHAEL I | Director | Grant | Common Stock | 21.8k | $0.00 | $0 | | 05/18/2023 |
| 05/18/2023 | Fessenden Elizabeth Anne | Director | Grant | Common Stock | 12.7k | $0.00 | $0 | | 05/18/2023 |
| 05/18/2023 | ABEL JAMES J | Director | Grant | Common Stock | 12.7k | $0.00 | $0 | | 05/18/2023 |
| 05/18/2023 | McNair Darrell L | Director | Grant | Common Stock | 12.7k | $0.00 | $0 | | 05/18/2023 |
| 05/18/2023 | DeMichiei Robert | Director | Grant | Common Stock | 12.7k | $0.00 | $0 | | 05/18/2023 |
| 05/15/2023 | Anderson David George | President,Air&Liq. Proc. Group | Grant | Common Stock | 9.9k | $0.00 | $0 | | 05/15/2023 |
| 05/15/2023 | Anderson David George | President,Air&Liq. Proc. Group | Grant | Performance Rights | 50k | $0.00 | $0 | | 05/15/2023 |
| 05/15/2023 | McBrayer Brett | CEO | Grant | Performance Rights | 100k | $0.00 | $0 | | 05/15/2023 |
| 05/15/2023 | McBrayer Brett | CEO | Grant | Common Stock | 64.8k | $0.00 | $0 | | 05/15/2023 |
| 05/15/2023 | Lyon Samuel | President of Union Electric | Grant | Common Stock | 21.1k | $0.00 | $0 | | 05/15/2023 |
| 05/15/2023 | Lyon Samuel | President of Union Electric | Grant | Performance Rights | 50k | $0.00 | $0 | | 05/15/2023 |
| 05/15/2023 | McAuley Michael G | V.P., CFO & Treasurer | Grant | Common Stock | 21.6k | $0.00 | $0 | | 05/15/2023 |
| 05/15/2023 | McAuley Michael G | V.P., CFO & Treasurer | Grant | Performance Rights | 50k | $0.00 | $0 | | 05/15/2023 |
| 05/07/2023 | McAuley Michael G | V.P., CFO & Treasurer | Payment of Exercise | Common Stock | 1.3k | $2.98 | $3.8k | | 05/05/2023 |
| 05/07/2023 | McAuley Michael G | V.P., CFO & Treasurer | Payment of Exercise | Common Stock | 5.7k | $2.98 | $16.9k | | 05/05/2023 |
| 05/07/2023 | Lyon Samuel | President of Union Electric | Payment of Exercise | Common Stock | 1.7k | $2.98 | $5.2k | | 05/05/2023 |
| 05/07/2023 | Lyon Samuel | President of Union Electric | Payment of Exercise | Common Stock | 7.7k | $2.98 | $23.1k | | 05/05/2023 |
| 05/07/2023 | McBrayer Brett | CEO | Payment of Exercise | Common Stock | 24.4k | $2.98 | $72.6k | | 05/05/2023 |
| 05/07/2023 | McBrayer Brett | CEO | Payment of Exercise | Common Stock | 5.5k | $2.98 | $16.4k | | 05/05/2023 |
| 05/07/2023 | Anderson David George | President,Air&Liq. Proc. Group | Payment of Exercise | Common Stock | 250 | $2.98 | $745 | | 05/05/2020 |
| 05/05/2023 | Anderson David George | President,Air&Liq. Proc. Group | Payment of Exercise | Common Stock | 812 | $2.98 | $2.4k | | 05/05/2020 |
| 05/05/2023 | McBrayer Brett | CEO | Payment of Exercise | Common Stock | 9.8k | $2.98 | $29.3k | | 05/05/2023 |
| 05/05/2023 | Lyon Samuel | President of Union Electric | Payment of Exercise | Common Stock | 2.6k | $2.98 | $7.8k | | 05/05/2023 |
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