| Name | Role | Date | Shares | Price | Value | 
|---|---|---|---|---|---|
| David George Anderson | President Air Liquid Systms | 2025-05-15 | 942 | $2.26 | $2.13kSell | 
| Samuel Lyon | President of Union Electric | 2025-05-15 | 3,375 | $2.26 | $7.63kSell | 
| David George Anderson | President Air Liquid Systms | 2025-05-15 | 1,496 | $2.26 | $3.38kSell | 
| Brett McBrayer | Chief Executive Officer | 2025-05-15 | 11,542 | $2.26 | $26.08kSell | 
| Brett McBrayer | Chief Executive Officer | 2025-05-15 | 10,474 | $2.26 | $23.67kSell | 
| Michael G. McAuley | Senior V.P. CFO Treasurer | 2025-05-15 | 2,278 | $2.26 | $5.15kSell | 
| Michael G. McAuley | Senior V.P. CFO Treasurer | 2025-05-15 | 2,052 | $2.26 | $4.64kSell | 
| Samuel Lyon | President of Union Electric | 2025-05-05 | 3,222 | $2.23 | $7.19kSell | 
| David George Anderson | President Air Liquid Systms | 2025-05-05 | 750 | $2.23 | $1.67kSell | 
| Michael G. McAuley | Senior V.P. CFO Treasurer | 2025-05-05 | 2,022 | $2.23 | $4.51kSell | 
| Name | Hold | Shares | Value | Type | 
|---|---|---|---|---|
| Berkman Investment Co Louis | 14.94% | 3,034,793 | $6.92M | Insider | 
| Louis Berkman | 12.69% | 2,578,842 | $5.88M | Insider | 
| Gamco Investors Inc Et Al 1 | 12.05% | 2,447,535 | $5.58M | Institution | 
| Frederick D. Disanto | 11.12% | 2,259,400 | $5.15M | Insider | 
| Altor II Aggregator Topco Ltd | 8.74% | 1,776,604 | $4.05M | Insider | 
| Gabelli Funds LLC | 6.73% | 1,367,800 | $3.12M | Institution | 
| Ameriprise Financial Inc | 5.71% | 1,159,681 | $2.64M | Institution | 
| Ancora Advisors LLC | 5.26% | 1,068,531 | $2.44M | Institution | 
| Irrevocable Trust Of Laura W. Van Loan For The Benefit Of Mary M. Crawford 2006 | 4.86% | 986,444 | $2.25M | Insider | 
| Vanguard Group Inc | 3.10% | 629,683 | $1.44M | Institution |