Bruce A Los
Insider
First SEC filing: March 6, 2012 · Latest: March 6, 2012
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Oct. 23, 2014 | GNTX | M | 4,928 | $29.92 | $147,446 | 0 Direct | -100.00% | Disposed | 47.6% (price as of 2026-10-02) |
| Oct. 23, 2014 | GNTX | M | 6,972 | $29.46 | $205,395 | 0 Direct | -100.00% | Disposed | 49.9% (price as of 2026-10-02) |
| Oct. 23, 2014 | GNTX | M | 10,630 | $8.30 | $88,229 | 0 Direct | -100.00% | Disposed | 432.0% (price as of 2026-10-02) |
| Oct. 23, 2014 | GNTX | S | 22,530 | $31.11 | $700,908 | 15,194 Direct | -59.72% | Disposed | 41.9% (price as of 2026-10-02) |
| Oct. 23, 2014 | GNTX | M | 4,928 | $29.92 | $147,446 | 37,724 Direct | +15.03% | Acquired | 47.6% (price as of 2026-10-02) |
| Oct. 23, 2014 | GNTX | M | 6,972 | $29.46 | $205,395 | 32,796 Direct | +27.00% | Acquired | 49.9% (price as of 2026-10-02) |
| Oct. 23, 2014 | GNTX | M | 10,630 | $8.30 | $88,229 | 25,824 Direct | +69.96% | Acquired | 432.0% (price as of 2026-10-02) |
| Sept. 30, 2014 | GNTX | M | 2,662 | $18.75 | $49,912 | 10,648 Direct | -20.00% | Disposed | 135.5% (price as of 2026-10-02) |
| Sept. 30, 2014 | GNTX | M | 6,720 | $18.12 | $121,766 | 0 Direct | -100.00% | Disposed | 143.7% (price as of 2026-10-02) |
| Sept. 30, 2014 | GNTX | S | 9,382 | $26.92 | $252,563 | 15,194 Direct | -38.18% | Disposed | 64.0% (price as of 2026-10-02) |
| Sept. 30, 2014 | GNTX | M | 2,662 | $18.75 | $49,912 | 24,576 Direct | +12.15% | Acquired | 135.5% (price as of 2026-10-02) |
| Sept. 30, 2014 | GNTX | M | 6,720 | $18.12 | $121,766 | 21,914 Direct | +44.23% | Acquired | 143.7% (price as of 2026-10-02) |
| July 29, 2014 | GNTX | M | 8,848 | $18.03 | $159,529 | 2,212 Direct | -80.00% | Disposed | 144.9% (price as of 2026-10-02) |
| July 29, 2014 | GNTX | S | 8,848 | $29.11 | $257,565 | 15,194 Direct | -36.80% | Disposed | 51.7% (price as of 2026-10-02) |
| July 29, 2014 | GNTX | M | 8,848 | $18.03 | $159,529 | 24,042 Direct | +58.23% | Acquired | 144.9% (price as of 2026-10-02) |
| June 6, 2014 | GNTX | M | 3,400 | $18.12 | $61,608 | 6,720 Direct | -33.60% | Disposed | 143.7% (price as of 2026-10-02) |
| June 6, 2014 | GNTX | S | 3,400 | $29.61 | $100,674 | 15,194 Direct | -18.29% | Disposed | 49.1% (price as of 2026-10-02) |
| June 6, 2014 | GNTX | M | 3,400 | $18.12 | $61,608 | 18,594 Direct | +22.38% | Acquired | 143.7% (price as of 2026-10-02) |
| Dec. 30, 2013 | GNTX | A | 13,850 | $32.83 | $454,696 | 13,850 Direct | · | Acquired | 34.5% (price as of 2026-10-02) |
| Dec. 12, 2013 | GNTX | M | 4,130 | $15.85 | $65,460 | 0 Direct | -100.00% | Disposed | 178.6% (price as of 2026-10-02) |
| Dec. 12, 2013 | GNTX | S | 4,130 | $30.15 | $124,520 | 15,194 Direct | -21.37% | Disposed | 46.5% (price as of 2026-10-02) |
| Dec. 12, 2013 | GNTX | M | 4,130 | $15.85 | $65,460 | 19,324 Direct | +27.18% | Acquired | 178.6% (price as of 2026-10-02) |
| Nov. 26, 2013 | GNTX | M | 2,000 | $15.85 | $31,700 | 17,194 Direct | +13.16% | Acquired | 178.6% (price as of 2026-10-02) |
| Nov. 26, 2013 | GNTX | S | 2,000 | $29.82 | $59,640 | 15,194 Direct | -11.63% | Disposed | 48.1% (price as of 2026-10-02) |
| Nov. 26, 2013 | GNTX | M | 2,000 | $15.85 | $31,700 | 4,130 Direct | -32.63% | Disposed | 178.6% (price as of 2026-10-02) |
| May 6, 2013 | GNTX | M | 3,500 | $15.85 | $55,475 | 6,130 Direct | -36.34% | Disposed | 178.6% (price as of 2026-10-02) |
| May 6, 2013 | GNTX | S | 3,500 | $24.14 | $84,490 | 15,194 Direct | -18.72% | Disposed | 82.9% (price as of 2026-10-02) |
| May 6, 2013 | GNTX | M | 3,500 | $15.85 | $55,475 | 18,694 Direct | +23.04% | Acquired | 178.6% (price as of 2026-10-02) |
| Dec. 27, 2012 | GNTX | A | 13,310 | $18.75 | $249,562 | 13,310 Direct | · | Acquired | 135.5% (price as of 2026-10-02) |
| Dec. 27, 2012 | GNTX | A | 7,380 | · | · | 15,194 Direct | +94.45% | Acquired | (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| Oct. 23, 2014 | GNTX | Employee Stock Option (Right to Buy) | Common Stock | $29.92 | Dec. 29, 2018 | 4,928 | Disposed |
| Oct. 23, 2014 | GNTX | Employee Stock Option (Right to Buy) | Common Stock | $29.46 | Dec. 28, 2017 | 6,972 | Disposed |
| Oct. 23, 2014 | GNTX | Employee Stock Option (Right to Buy) | Common Stock | $8.30 | Dec. 24, 2015 | 10,630 | Disposed |
| Sept. 30, 2014 | GNTX | Employee Stock Option (Right to Buy) | Common Stock | $18.75 | Dec. 27, 2019 | 2,662 | Disposed |
| Sept. 30, 2014 | GNTX | Employee Stock Option (Right to Buy) | Common Stock | $18.12 | Dec. 27, 2014 | 6,720 | Disposed |
| July 29, 2014 | GNTX | Employee Stock Option (Right to Buy) | Common Stock | $18.03 | Dec. 29, 2016 | 8,848 | Disposed |
| June 6, 2014 | GNTX | Employee Stock Option (Right to Buy) | Common Stock | $18.12 | Dec. 27, 2014 | 3,400 | Disposed |
| Dec. 30, 2013 | GNTX | Employee Stock Option (Right to Buy) | Common Stock | $32.83 | Dec. 30, 2020 | 13,850 | Acquired |
| Dec. 12, 2013 | GNTX | Employee Stock Option (Right to Buy) | Common Stock | $15.85 | Dec. 22, 2013 | 4,130 | Disposed |
| Nov. 26, 2013 | GNTX | Employee Stock Option (Right to Buy) | Common Stock | $15.85 | Dec. 22, 2013 | 2,000 | Disposed |
| May 6, 2013 | GNTX | Employee Stock Option (Right to Buy) | Common Stock | $15.85 | Dec. 22, 2013 | 3,500 | Disposed |
| Dec. 27, 2012 | GNTX | Employee Stock Option (Right to Buy) | Common Stock | $18.75 | Dec. 27, 2019 | 13,310 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 9 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 6, 2012 | GNTX | Common Stock | 7,814 | Direct |
| Feb. 22, 2012 | GNTX | Common Stock | 7,607 | Direct |
| Feb. 22, 2012 | GNTX | Employee Stock Option (Right to Buy) | 9,000 | Direct |
| Feb. 22, 2012 | GNTX | Employee Stock Option (Right to Buy) | 9,630 | Direct |
| Feb. 22, 2012 | GNTX | Employee Stock Option (Right to Buy) | 10,120 | Direct |
| Feb. 22, 2012 | GNTX | Employee Stock Option (Right to Buy) | 10,630 | Direct |
| Feb. 22, 2012 | GNTX | Employee Stock Option (Right to Buy) | 11,060 | Direct |
| Feb. 22, 2012 | GNTX | Employee Stock Option (Right to Buy) | 11,620 | Direct |
| Feb. 22, 2012 | GNTX | Employee Stock Option (Right to Buy) | 12,320 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2013 | $210,028 | $58,156 | · | · | · | · | $18,934 | $416,694 |
| 2012 | $198,347 | $44,477 | · | · | · | · | $13,404 | $469,104 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.