Xiaobin Liu
Insider
First SEC filing: Nov. 24, 2025 · Latest: Nov. 24, 2025
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 |
|---|---|---|---|---|---|---|---|---|---|
| Nov. 21, 2025 | GURE | A | 30,000 | · | · | 43,812 Direct | +217.20% | Acquired | (price as of 2026-10-02) |
| March 21, 2025 | GURE | A | 40,000 | · | · | 138,115 Direct | +40.77% | Acquired | (price as of 2026-10-02) |
| Jan. 20, 2025 | GURE | A | 40,000 | · | · | 98,115 Direct | +68.83% | Acquired | (price as of 2026-10-02) |
| Dec. 27, 2023 | GURE | A | 40,000 | · | · | 58,115 Direct | +220.81% | Acquired | (price as of 2026-10-02) |
| Dec. 20, 2023 | GURE | S | 110,000 | $2.50 | $275,000 | 18,115 Direct | -85.86% | Disposed | -87.9% (price as of 2026-10-02) |
| Nov. 30, 2022 | GURE | S | 80,000 | · | · | 128,115 Direct | -38.44% | Disposed | (price as of 2026-10-02) |
| Oct. 7, 2022 | GURE | A | 20,000 | · | · | 208,115 Direct | +10.63% | Acquired | (price as of 2026-10-02) |
| Sept. 12, 2022 | GURE | S | 20,000 | $3.88 | $77,600 | 188,115 Direct | -9.61% | Disposed | -92.2% (price as of 2026-10-02) |
| Dec. 17, 2021 | GURE | S | 10,000 | $4.60 | $46,000 | 208,115 Direct | -4.58% | Disposed | -93.4% (price as of 2026-10-02) |
| May 10, 2021 | GURE | A | 100,000 | · | · | 218,115 Direct | +84.66% | Acquired | (price as of 2026-10-02) |
| April 26, 2021 | GURE | J | 20,000 | $7.20 | $144,000 | 0 Direct | -100.00% | Disposed | -95.8% (price as of 2026-10-02) |
| Sept. 21, 2020 | GURE | A | 100,000 | · | · | 118,115 Direct | +552.03% | Acquired | (price as of 2026-10-02) |
| Sept. 5, 2019 | GURE | S | 166,230 | $0.72 | $119,686 | 90,575 Direct | -64.73% | Disposed | -91.6% (price as of 2026-10-02) |
| May 17, 2019 | GURE | M | 400,000 | · | · | 100,000 Direct | -80.00% | Disposed | (price as of 2026-10-02) |
| May 17, 2019 | GURE | F | 166,230 | $0.71 | $118,023 | 256,805 Direct | +183.53% | Acquired | -91.5% (price as of 2026-10-02) |
| Dec. 3, 2018 | GURE | A | 400,000 | · | · | 500,000 Direct | +400.00% | Acquired | (price as of 2026-10-02) |
| Aug. 23, 2017 | GURE | A | 100,000 | · | · | 100,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 31, 2017 | GURE | S | 55,767 | $1.77 | $98,708 | 90,575 Direct | -38.11% | Disposed | -96.6% (price as of 2026-10-02) |
| May 30, 2017 | GURE | S | 50,000 | $1.82 | $91,000 | 146,342 Direct | -25.47% | Disposed | -96.7% (price as of 2026-10-02) |
| Sept. 20, 2016 | GURE | M | 100,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Sept. 20, 2016 | GURE | F | 61,818 | $2.31 | $142,800 | 196,342 Direct | -23.95% | Disposed | -97.4% (price as of 2026-10-02) |
| Sept. 20, 2016 | GURE | M | 100,000 | $1.43 | $143,000 | 258,160 Direct | +63.23% | Acquired | -95.8% (price as of 2026-10-02) |
| Sept. 5, 2016 | GURE | M | 150,000 | · | · | 100,000 Direct | -60.00% | Disposed | (price as of 2026-10-02) |
| Sept. 5, 2016 | GURE | F | 82,415 | $1.78 | $146,699 | 158,160 Direct | -34.26% | Disposed | -96.6% (price as of 2026-10-02) |
| Sept. 5, 2016 | GURE | M | 150,000 | $0.98 | $147,000 | 240,575 Direct | +165.61% | Acquired | -93.8% (price as of 2026-10-02) |
| Aug. 16, 2016 | GURE | M | 200,000 | · | · | 250,000 Direct | -44.44% | Disposed | (price as of 2026-10-02) |
| Aug. 16, 2016 | GURE | F | 109,425 | $1.74 | $190,400 | 90,575 Direct | -54.71% | Disposed | -96.5% (price as of 2026-10-02) |
| Aug. 16, 2016 | GURE | M | 200,000 | $0.95 | $190,000 | 200,000 Direct | · | Acquired | -93.7% (price as of 2026-10-02) |
| April 8, 2015 | GURE | A | 100,000 | · | · | 650,000 Direct | +18.18% | Acquired | (price as of 2026-10-02) |
| Nov. 19, 2014 | GURE | A | 150,000 | · | · | 750,000 Direct | +25.00% | Acquired | (price as of 2026-10-02) |
| Sept. 13, 2013 | GURE | S | 14,831 | $1.82 | $26,992 | 0 Direct | -100.00% | Disposed | -96.7% (price as of 2026-10-02) |
| May 30, 2013 | GURE | A | 200,000 | · | · | 600,000 Direct | +50.00% | Acquired | (price as of 2026-10-02) |
| July 17, 2012 | GURE | A | 200,000 | · | · | 400,000 Direct | +100.00% | Acquired | (price as of 2026-10-02) |
| Sept. 26, 2011 | GURE | J | 200,000 | $4.97 | $994,000 | 200,000 Direct | -50.00% | Disposed | -98.8% (price as of 2026-10-02) |
| Sept. 26, 2011 | GURE | J | 25,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 29, 2011 | GURE | A | 400,000 | · | · | 400,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 9, 2010 | GURE | F | 25,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 9, 2010 | GURE | C | 14,831 | $4.80 | $71,189 | 14,831 Direct | · | Acquired | -98.7% (price as of 2026-10-02) |
| March 10, 2009 | GURE | A | 100,000 | · | · | 100,000 Direct | · | 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 |
|---|---|---|---|---|---|---|---|
| April 26, 2021 | GURE | Options to purchase Common Stock | Common Stock | · | Aug. 22, 2021 | 20,000 | Disposed |
| May 17, 2019 | GURE | Common Stock, par value $0.0005 per share | Common Stock | $0.71 | Dec. 2, 2022 | 400,000 | Disposed |
| Dec. 3, 2018 | GURE | Common Stock, par value $0.0005 per share | Common Stock | $0.71 | Dec. 2, 2022 | 400,000 | Acquired |
| Aug. 23, 2017 | GURE | Common Stock, par value $0.0005 per share | Common Stock | $1.45 | Aug. 22, 2021 | 100,000 | Acquired |
| Sept. 20, 2016 | GURE | Common Stock, par value $0.0005 per share | Common Stock | $1.43 | April 7, 2019 | 100,000 | Disposed |
| Sept. 5, 2016 | GURE | Common Stock, par value $0.0005 per share | Common Stock | $0.98 | Nov. 18, 2018 | 150,000 | Disposed |
| Aug. 16, 2016 | GURE | Common Stock, par value $0.0005 per share | Common Stock | $0.95 | April 29, 2017 | 200,000 | Disposed |
| April 8, 2015 | GURE | Common Stock, par value $0.0005 per share | Common Stock | $1.43 | April 7, 2019 | 100,000 | Acquired |
| Nov. 19, 2014 | GURE | Common Stock, par value $0.0005 per share | Common Stock | $0.98 | Nov. 18, 2018 | 150,000 | Acquired |
| May 30, 2013 | GURE | Common Stock, par value $0.0005 per share | Common Stock | $0.95 | May 29, 2017 | 200,000 | Acquired |
| July 17, 2012 | GURE | Common Stock, par value $0.0005 per share | Common Stock | $0.95 | July 16, 2016 | 200,000 | Acquired |
| Sept. 26, 2011 | GURE | Option | Common Stock | $4.97 | March 28, 2015 | 200,000 | Disposed |
| Sept. 26, 2011 | GURE | Option | Common Stock | $8.25 | Feb. 4, 2013 | 25,000 | Disposed |
| March 29, 2011 | GURE | Common Stock, par value $0.0005 per share | Common Stock | $4.97 | March 28, 2015 | 400,000 | Acquired |
| Dec. 9, 2010 | GURE | Common Stock, par value $0.0005 per share | Common Stock | $4.80 | March 9, 2019 | 25,000 | Disposed |
| March 10, 2009 | GURE | Option to purchase Common Stock, par value $0.0005 per share | Common Stock | $1.20 | March 9, 2019 | 100,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
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 | · | · | · | · | · | · | · | · |
| 2012 | · | · | · | · | · | · | · | · |
| 2011 | · | · | · | · | · | · | · | · |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.