| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| PPIH | Perma-Pipe International Holdings, Inc. | Zorko Mark A | Director | Jan 10, 2019 | Option Exercise | $7.38 | 14,200 | 104,765 | 7,100 | Jan 14, 2019, 05:28 PM | |
| PPIH | Perma-Pipe International Holdings, Inc. | Zorko Mark A | Director | Jan 11, 2019 | Sale | $7.52 | 10,800 | 81,233 | 12,500 | Jan 14, 2019, 05:28 PM | |
| PPIH | Perma-Pipe International Holdings, Inc. | Zorko Mark A | Director | Jan 03, 2019 | Sale | $8.75 | 500 | 4,375 | 7,483 | Jan 07, 2019, 12:39 PM | |
| PPIH | Perma-Pipe International Holdings, Inc. | Zorko Mark A | Director | Jan 04, 2019 | Sale | $8.47 | 7,483 | 63,381 | 0 | Jan 07, 2019, 12:39 PM | |
| MFRI | MFRI INC | Zorko Mark A | Director | Apr 08, 2016 | Option Exercise | $7.09 | 959 | 6,799 | 7,983 | Apr 20, 2016, 06:25 PM | |
| LDR | LANDAUER INC | Zorko Mark A | Interim CFO | Aug 08, 2014 | Buy | $38.21 | 1,500 | 57,315 | 1,500 | Aug 12, 2014, 06:14 PM | |
| LDR | LANDAUER INC | Zorko Mark A | Interim CFO | Aug 11, 2014 | Buy | $37.70 | 500 | 18,850 | 2,000 | Aug 12, 2014, 06:14 PM | |
| MFRI | MFRI INC | Zorko Mark A | Director | Jun 20, 2013 | Option Exercise | $10.61 | 2,830 | 30,026 | 0 | Jun 24, 2013, 04:48 PM | |
| MFRI | MFRI INC | Zorko Mark A | Director | Oct 14, 2011 | Buy | $7.10 | 2,000 | 14,200 | 7,024 | Oct 17, 2011, 12:03 PM |
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