Martha L. Byorum is Director at Tecnoglass Inc. (TGLS). They have made 16 open-market trades across 2 companies since 2016, most recently 2021-09-02.
CIK 0001292529
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 16 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| TGLS | SELL | 2021-09-02 | 2021-09-03 | $24.46 | $196K | +0.8% | +0.5% | +47.0% |
| TGLS | SELL | 2020-12-16 | 2020-12-17 | $7.07 | $57K | -2.1% | -0.6% | +49.3% |
| TGLS | SELL | 2020-09-03 | 2020-09-14 | $5.34 | $33K | +3.1% | +16.6% | +31.3% |
| TGLS | SELL | 2019-09-13 | 2019-09-13 | $7.39 | $11K | +3.6% | +3.4% | +12.0% |
| TGLS | SELL | 2019-05-28 | 2019-05-28 | $6.70 | $11K | +0.0% | -9.1% | +3.8% |
| TGLS | SELL | 2019-02-11 | 2019-02-13 | $8.46 | $51K | +4.1% | -7.7% | -15.2% |
| TGLS | SELL | 2018-11-13 | 2018-11-15 | $8.43 | $24K | +9.0% | -1.0% | -3.1% |
| TGLS | SELL | 2018-09-11 | 2018-09-14 | $9.44 | $90K | +0.0% | +0.1% | -9.0% |
| TGLS | SELL | 2017-12-13 | 2017-12-15 | $7.31 | $66K | -5.3% | +18.3% | +20.1% |
| TGLS | SELL | 2017-12-05 | 2017-12-06 | $7.36 | $15K | +7.2% | +5.0% | +23.8% |
| TGLS | SELL | 2017-11-27 | 2017-11-29 | $7.05 | $56K | +4.7% | +5.0% | +30.0% |
| TGLS | SELL | 2017-11-17 | 2017-11-20 | $7.09 | $50K | -2.1% | +8.7% | +23.7% |
| NWN | SELL | 2017-09-27 | 2017-09-28 | $64.88 | $156K | +0.4% | +1.4% | -9.2% |
| TGLS | SELL | 2017-06-09 | 2017-06-13 | $9.27 | $46K | +1.2% | +1.0% | -24.2% |
| NWN | SELL | 2017-06-05 | 2017-06-06 | $62.55 | $20K | +1.5% | -3.6% | +8.9% |
| TGLS | SELL | 2016-12-07 | 2016-12-12 | $11.83 | $154K | -3.6% | -3.2% | -8.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.