| 2023-05-03 | Ross Susan Williamson | Director | Sale+OE | 125 | $5,891.65 | $736,456.25 | -23.6% | → |
| 2023-05-03 | Martinez Melquiades R. | Director | Sale+OE | 750 | $5,873.92 | $4,405,440.00 | -79.7% | → |
| 2023-05-03 | Kelpy Matthew B. | VP, Chief Accounting Officer | Sale+OE | 150 | $5,965.00 | $894,750.00 | -39.5% | → |
| 2023-05-02 | SAVILLE PAUL C | Executive Chairman | Sale+OE | 2,694 | $5,843.21 | $15,741,601.82 | -1.2% | → |
| 2023-04-27 | Malzahn Daniel David | Chief Financial Officer | Sale+OE | 1,667 | $5,759.88 | $9,601,719.96 | -16.7% | → |
| 2023-02-28 | Malzahn Daniel David | Chief Financial Officer | Sale+OE | 2,100 | $5,169.13 | $10,855,182.00 | -13.1% | → |
| 2023-02-27 | Bredow Eugene James | Chief Executive Officer | Sale+OE | 3,300 | $5,139.85 | $16,961,500.00 | -50.0% | → |
| 2023-02-08 | FESTA ALFRED E | Director | Sale+OE | 1,600 | $5,032.84 | $8,052,544.00 | -83.3% | → |
| 2023-02-03 | Ross Susan Williamson | Director | Sale+OE | 125 | $5,330.00 | $666,250.00 | -23.6% | → |
| 2023-02-02 | SAVILLE PAUL C | Executive Chairman | Sell | 846 | $5,436.65 | $4,599,405.90 | -0.8% | → |
| 2023-02-02 | Malzahn Daniel David | Chief Financial Officer | Sale+OE | 199 | $5,490.16 | $1,092,541.84 | -2.8% | → |
| 2023-02-02 | Kelpy Matthew B. | VP, Chief Accounting Officer | Sale+OE | 632 | $5,379.77 | $3,400,014.64 | -73.3% | → |
| 2023-02-02 | ANDREWS CHARLES ELLIOTT | Director | Sale+OE | 650 | $5,455.10 | $3,545,815.00 | -41.7% | → |
| 2022-11-15 | Ross Susan Williamson | Director | Sale+OE | 250 | $4,487.78 | $1,121,945.00 | -38.2% | → |
| 2022-11-10 | Malzahn Daniel David | Chief Financial Officer | Sale+OE | 2,022 | $4,368.94 | $8,834,002.80 | -13.0% | → |
| 2022-11-01 | Malzahn Daniel David | Chief Financial Officer | Sale+OE | 1,166 | $4,250.10 | $4,955,616.60 | -15.1% | → |
| 2022-10-28 | Malzahn Daniel David | Chief Financial Officer | Sale+OE | 2,338 | $4,202.92 | $9,826,438.65 | -18.1% | → |
| 2022-08-15 | Malzahn Daniel David | Chief Financial Officer | Sale+OE | 581 | $4,406.01 | $2,559,891.81 | -12.5% | → |
| 2022-08-11 | Malzahn Daniel David | Chief Financial Officer | Sale+OE | 439 | $4,436.73 | $1,947,724.47 | -10.8% | → |
| 2022-08-10 | BAILEY SALLIE B | Director | Buy | 25 | $4,365.45 | $109,136.25 | +33.3% | → |
| 2022-08-01 | Malzahn Daniel David | Chief Financial Officer | Sale+OE | 1,155 | $4,436.88 | $5,124,596.40 | -25.8% | → |
| 2022-07-28 | Malzahn Daniel David | Chief Financial Officer | Sale+OE | 1,793 | $4,435.03 | $7,952,008.79 | -42.1% | → |
| 2021-11-30 | ECKERT THOMAS D | Director | Sale+OE | 1,300 | $5,242.15 | $6,814,795.00 | -54.2% | → |
| 2021-10-25 | Kelpy Matthew B. | VP, Chief Accounting Officer | Buy | 100 | $4,860.00 | $486,000.00 | +89.3% | → |
| 2021-08-27 | JOHNSON MANUEL H | Director | Sale+OE | 1,000 | $5,143.21 | $5,143,210.00 | -71.4% | → |
| 2021-08-02 | Bredow Eugene James | President, NVRM, Inc. | Sale+OE | 392 | $5,260.00 | $2,061,920.00 | -19.2% | → |
| 2021-05-10 | SAVILLE PAUL C | Chief Executive Officer | Sell | 3,460 | $5,221.00 | $18,064,668.20 | -1.6% | → |
| 2021-02-01 | Praylo Paul W | SVP, Chief Operating Officer | Sell | 127 | $4,502.27 | $571,788.29 | -29.6% | → |
| 2021-02-01 | Bredow Eugene James | President, NVRM, Inc. | Sale+OE | 1,000 | $4,520.00 | $4,520,000.00 | -54.8% | → |
| 2021-02-01 | Kelpy Matthew B. | VP, Chief Accounting Officer | Sale+OE | 463 | $4,500.00 | $2,083,500.00 | -80.5% | → |
| 2020-11-25 | SAVILLE PAUL C | Chief Executive Officer | Sale+OE | 850 | $4,180.01 | $3,553,008.50 | -0.7% | → |
| 2020-11-24 | SAVILLE PAUL C | Chief Executive Officer | Sale+OE | 2,400 | $4,193.17 | $10,063,606.00 | -1.1% | → |
| 2020-11-20 | SAVILLE PAUL C | Chief Executive Officer | Sale+OE | 1,750 | $4,210.05 | $7,367,587.50 | -0.8% | → |
| 2020-11-13 | Bredow Eugene James | President, NVRM, Inc. | Sale+OE | 183 | $4,281.64 | $783,540.12 | -18.1% | → |
| 2020-11-11 | FESTA ALFRED E | Director | Sell | 500 | $4,128.84 | $2,064,420.00 | -60.9% | → |
| 2020-11-04 | Bredow Eugene James | President, NVRM, Inc. | Sale+OE | 1,000 | $4,300.00 | $4,300,000.00 | -54.8% | → |
| 2020-10-28 | Kelpy Matthew B. | VP, Chief Accounting Officer | Buy | 17 | $3,919.98 | $66,639.66 | +1,700% | → |
| 2020-10-23 | Jung Alexandra A | Director | Buy | 30 | $4,211.37 | $126,341.10 | +31.6% | → |
| 2020-08-03 | ECKERT THOMAS D | Director | Sale+OE | 2,035 | $3,900.00 | $7,936,500.00 | -64.9% | → |
| 2020-05-13 | Ross Susan Williamson | Director | Buy | 30 | $2,793.00 | $83,790.00 | +24.0% | → |
| 2020-05-12 | BAILEY SALLIE B | Director | Buy | 75 | $3,000.00 | $225,000.00 | New | → |