Martha L Byorum
CIK 1292529 · View on SEC EDGAR ↗
Insider
First SEC filing: Jan. 27, 2017 · Latest: Jan. 27, 2017
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 8 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
8 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 2, 2021 | TGLS | S | 8,000 | $24.46 | $195,680 | 50,304 Direct | -13.72% | Disposed | 65.8% (price as of 2026-08-20) |
| Dec. 17, 2020 | TGLS | S | 3,000 | $7.03 | $21,090 | 58,304 Direct | -4.89% | Disposed | 477.0% (price as of 2026-08-20) |
| Dec. 16, 2020 | TGLS | S | 5,000 | $7.10 | $35,500 | 61,304 Direct | -7.54% | Disposed | 471.3% (price as of 2026-08-20) |
| Sept. 14, 2020 | TGLS | S | 2,000 | $5.20 | $10,400 | 66,304 Direct | -2.93% | Disposed | 680.0% (price as of 2026-08-20) |
| Sept. 8, 2020 | TGLS | S | 180 | $5.40 | $972 | 68,304 Direct | -0.26% | Disposed | 651.1% (price as of 2026-08-20) |
| Sept. 4, 2020 | TGLS | S | 2,080 | $5.41 | $11,253 | 68,484 Direct | -2.95% | Disposed | 649.7% (price as of 2026-08-20) |
| Sept. 3, 2020 | TGLS | S | 2,000 | $5.40 | $10,800 | 70,564 Direct | -2.76% | Disposed | 651.1% (price as of 2026-08-20) |
| Sept. 13, 2019 | TGLS | S | 1,500 | $7.39 | $11,085 | 72,564 Direct | -2.03% | Disposed | 448.8% (price as of 2026-08-20) |
| May 28, 2019 | TGLS | S | 1,706 | $6.70 | $11,430 | 74,064 Direct | -2.25% | Disposed | 505.4% (price as of 2026-08-20) |
| Feb. 13, 2019 | TGLS | S | 2,346 | $8.39 | $19,683 | 75,770 Direct | -3.00% | Disposed | 383.4% (price as of 2026-08-20) |
| Feb. 13, 2019 | TGLS | S | 2,346 | $8.39 | $19,683 | 75,770 Direct | -3.00% | Disposed | 383.4% (price as of 2026-08-20) |
| Feb. 12, 2019 | TGLS | S | 1,648 | $8.52 | $14,041 | 78,116 Direct | -2.07% | Disposed | 376.1% (price as of 2026-08-20) |
| Feb. 12, 2019 | TGLS | S | 1,648 | $8.52 | $14,041 | 78,116 Direct | -2.07% | Disposed | 376.1% (price as of 2026-08-20) |
| Feb. 11, 2019 | TGLS | S | 2,000 | $8.50 | $17,000 | 79,764 Direct | -2.45% | Disposed | 377.2% (price as of 2026-08-20) |
| Feb. 11, 2019 | TGLS | S | 2,000 | $8.50 | $17,000 | 79,764 Direct | -2.45% | Disposed | 377.2% (price as of 2026-08-20) |
| Nov. 13, 2018 | TGLS | S | 2,900 | $8.43 | $24,447 | 81,764 Direct | -3.43% | Disposed | 381.1% (price as of 2026-08-20) |
| Sept. 14, 2018 | TGLS | S | 1,400 | $9.44 | $13,216 | 84,664 Direct | -1.63% | Disposed | 329.7% (price as of 2026-08-20) |
| Sept. 13, 2018 | TGLS | S | 8,000 | $9.44 | $75,520 | 86,064 Direct | -8.50% | Disposed | 329.7% (price as of 2026-08-20) |
| Sept. 11, 2018 | TGLS | S | 103 | $9.40 | $968 | 94,064 Direct | -0.11% | Disposed | 331.5% (price as of 2026-08-20) |
| Dec. 15, 2017 | TGLS | S | 4,000 | $7.35 | $29,400 | 91,751 Direct | -4.18% | Disposed | 451.8% (price as of 2026-08-20) |
| Dec. 13, 2017 | TGLS | S | 5,000 | $7.27 | $36,350 | 95,751 Direct | -4.96% | Disposed | 457.9% (price as of 2026-08-20) |
| Dec. 5, 2017 | TGLS | S | 2,000 | $7.36 | $14,720 | 100,751 Direct | -1.95% | Disposed | 451.1% (price as of 2026-08-20) |
| Nov. 29, 2017 | TGLS | S | 2,000 | $6.95 | $13,900 | 102,751 Direct | -1.91% | Disposed | 483.6% (price as of 2026-08-20) |
| Nov. 28, 2017 | TGLS | S | 2,000 | $7.05 | $14,100 | 104,751 Direct | -1.87% | Disposed | 475.3% (price as of 2026-08-20) |
| Nov. 27, 2017 | TGLS | S | 3,900 | $7.11 | $27,729 | 106,751 Direct | -3.52% | Disposed | 470.5% (price as of 2026-08-20) |
| Nov. 20, 2017 | TGLS | S | 3,000 | $7.13 | $21,390 | 110,651 Direct | -2.64% | Disposed | 468.9% (price as of 2026-08-20) |
| Nov. 17, 2017 | TGLS | S | 4,000 | $7.06 | $28,240 | 113,651 Direct | -3.40% | Disposed | 474.5% (price as of 2026-08-20) |
| June 9, 2017 | TGLS | S | 5,000 | $9.27 | $46,350 | 110,579 Direct | -4.33% | Disposed | 337.5% (price as of 2026-08-20) |
| Dec. 8, 2016 | TGLS | S | 10,200 | $11.83 | $120,666 | 115,209 Direct | -8.13% | Disposed | 242.9% (price as of 2026-08-20) |
| Dec. 7, 2016 | TGLS | S | 2,800 | $11.84 | $33,152 | 125,409 Direct | -2.18% | Disposed | 242.6% (price as of 2026-08-20) |
| Aug. 27, 2015 | TGLS | S | 6,400 | $5.46 | $34,944 | 110,000 Direct | -5.50% | Disposed | 642.9% (price as of 2026-08-20) |
| Aug. 26, 2015 | TGLS | S | 1,000 | $5.35 | $5,350 | 116,400 Direct | -0.85% | Disposed | 658.1% (price as of 2026-08-20) |
| Aug. 19, 2015 | TGLS | S | 7,600 | $5.51 | $41,876 | 117,400 Direct | -6.08% | Disposed | 636.1% (price as of 2026-08-20) |
| Feb. 27, 2014 | TGLS | P | 20,000 | — | — | 80,000 Direct | +33.33% | Acquired | (price as of 2026-08-20) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Sept. 8, 2016 | TGLS | Warrants | Ordinary Shares (110,000) | $8.00 | Dec. 20, 2016 | 110,000 | Disposed |
| Aug. 27, 2015 | TGLS | Warrant | Ordinary Shares (6,400) | $8.00 | Dec. 20, 2016 | 6,400 | Disposed |
| Aug. 26, 2015 | TGLS | Warrant | Ordinary Shares (1,000) | $8.00 | Dec. 20, 2016 | 1,000 | Disposed |
| Aug. 19, 2015 | TGLS | Warrant | Ordinary Shares (7,600) | $8.00 | Dec. 20, 2016 | 7,600 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.