Bor-Tay Wu
CIK 1394670 · View on SEC EDGAR ↗
Insider
First SEC filing: April 3, 2007 · Latest: April 3, 2007
On this page
Insider at
Insider transactions
0 buys (P)
5 sells (S)
Net:
$-1,002,200
+ 66 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
66 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 1, 2026 | GSIT | S | 20,000 | $10.93 | $218,600 | 912,500 Direct | -2.14% | Disposed | -46.5% (price as of 2026-08-20) |
| May 22, 2026 | GSIT | S | 20,000 | $10.93 | $218,600 | 912,500 Direct | -2.14% | Disposed | -46.5% (price as of 2026-08-20) |
| May 22, 2026 | GSIT | S | 20,000 | $10.93 | $218,600 | 912,500 Direct | +2.24% | Acquired | -46.5% (price as of 2026-08-20) |
| March 10, 2026 | GSIT | S | 40,000 | $8.66 | $346,400 | 912,500 Direct | -4.20% | Disposed | -32.4% (price as of 2026-08-20) |
| March 10, 2026 | GSIT | S | 40,000 | — | — | 0 Direct | — | Acquired | (price as of 2026-08-20) |
| April 6, 2020 | GSIT | S 10b5-1 | 29,998 | $8.10 | $242,984 | 912,500 Direct | -3.18% | Disposed | -27.8% (price as of 2026-08-20) |
| April 3, 2020 | GSIT | S 10b5-1 | 10,002 | $8.10 | $81,016 | 912,500 Direct | -1.08% | Disposed | -27.8% (price as of 2026-08-20) |
| May 6, 2019 | GSIT | S 10b5-1 | 20,625 | $7.69 | $158,606 | 912,500 Direct | -2.21% | Disposed | -23.9% (price as of 2026-08-20) |
| May 4, 2018 | GSIT | S 10b5-1 | 6,035 | $7.56 | $45,625 | 912,500 Direct | -0.66% | Disposed | -22.6% (price as of 2026-08-20) |
| May 3, 2018 | GSIT | S 10b5-1 | 4,590 | $7.27 | $33,369 | 912,500 Indirect | -0.50% | Disposed | -19.5% (price as of 2026-08-20) |
| May 3, 2018 | GSIT | S 10b5-1 | 4,590 | $7.27 | $33,369 | 912,500 Direct | -0.50% | Disposed | -19.5% (price as of 2026-08-20) |
| May 2, 2018 | GSIT | S 10b5-1 | 10,000 | $7.58 | $75,800 | 912,500 Indirect | -1.08% | Disposed | -22.8% (price as of 2026-08-20) |
| May 2, 2018 | GSIT | S 10b5-1 | 10,000 | $7.58 | $75,800 | 912,500 Direct | -1.08% | Disposed | -22.8% (price as of 2026-08-20) |
| Jan. 3, 2017 | GSIT | S 10b5-1 | 20,625 | $6.14 | $126,638 | 912,500 Direct | -2.21% | Disposed | -4.7% (price as of 2026-08-20) |
| Jan. 3, 2013 | GSIT | S 10b5-1 | 20,625 | $6.50 | $134,062 | 0 Direct | -100.00% | Disposed | -10.0% (price as of 2026-08-20) |
| Jan. 5, 2011 | GSIT | S 10b5-1 | 41,250 | $8.10 | $334,125 | 0 Direct | -100.00% | Disposed | -27.8% (price as of 2026-08-20) |
| Feb. 19, 2010 | GSIT | S | 18,200 | $4.50 | $81,900 | 0 Direct | -100.00% | Disposed | 30.0% (price as of 2026-08-20) |
| Feb. 18, 2010 | GSIT | S | 23,050 | $4.50 | $103,725 | 912,500 Direct | -2.46% | Disposed | 30.0% (price as of 2026-08-20) |
| Feb. 18, 2010 | GSIT | S | 23,050 | $4.50 | $103,725 | 0 Direct | -100.00% | Disposed | 30.0% (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 |
|---|---|---|---|---|---|---|---|
| June 1, 2026 | GSIT | Stock Option (right to buy) | Common Stock (20,000) | $3.68 | May 5, 2035 | 20,000 | Disposed |
| May 22, 2026 | GSIT | Stock Option (right to buy) | Common Stock (20,000) | $2.27 | Dec. 2, 2032 | 20,000 | Disposed |
| May 22, 2026 | GSIT | Stock Option (right to buy) | Common Stock (20,000) | $1.92 | Jan. 29, 2034 | 20,000 | Disposed |
| March 10, 2026 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $4.99 | Aug. 1, 2026 | 40,000 | Acquired |
| Feb. 2, 2026 | GSIT | Stock Option (right to buy) | Common Stock (20,000) | $7.23 | Feb. 2, 2036 | 20,000 | Acquired |
| Aug. 4, 2025 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $3.96 | Aug. 4, 2035 | 40,000 | Acquired |
| May 5, 2025 | GSIT | Stock Option (right to buy) | Common Stock (20,000) | $3.68 | May 5, 2035 | 20,000 | Acquired |
| July 29, 2024 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $2.94 | July 29, 2034 | 40,000 | Acquired |
| Jan. 29, 2024 | GSIT | Stock Option (right to buy) | Common Stock (20,000) | $1.92 | Jan. 29, 2034 | 20,000 | Acquired |
| July 31, 2023 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $4.39 | July 31, 2033 | 40,000 | Acquired |
| Dec. 2, 2022 | GSIT | Stock Option (right to buy) | Common Stock (20,000) | $2.27 | Dec. 2, 2032 | 20,000 | Acquired |
| Aug. 1, 2022 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $4.08 | Aug. 1, 2032 | 40,000 | Acquired |
| Aug. 2, 2021 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $5.58 | Aug. 2, 2031 | 40,000 | Acquired |
| Aug. 3, 2020 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $5.83 | Aug. 3, 2030 | 40,000 | Acquired |
| April 6, 2020 | GSIT | Stock Option (right to buy) | Common Stock (29,998) | $6.00 | May 10, 2020 | 29,998 | Disposed |
| April 3, 2020 | GSIT | Stock Option (right to buy) | Common Stock (10,002) | $6.00 | May 10, 2020 | 10,002 | Disposed |
| July 29, 2019 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $8.30 | July 29, 2029 | 40,000 | Acquired |
| May 6, 2019 | GSIT | Stock Option (right to buy) | Common Stock (20,625) | $3.38 | May 11, 2019 | 20,625 | Disposed |
| May 4, 2018 | GSIT | Stock Option (right to buy) | Common Stock (6,035) | $4.30 | May 12, 2018 | 6,035 | Disposed |
| May 3, 2018 | GSIT | Stock Option (right to buy) | Common Stock (4,590) | $4.30 | May 12, 2018 | 4,590 | Disposed |
| May 3, 2018 | GSIT | Stock Option (right to buy) | Common Stock (4,590) | $4.30 | May 12, 2018 | 4,590 | Disposed |
| May 2, 2018 | GSIT | Stock Option (right to buy) | Common Stock (10,000) | $4.30 | May 12, 2018 | 10,000 | Disposed |
| May 2, 2018 | GSIT | Stock Option (right to buy) | Common Stock (10,000) | $4.30 | May 12, 2018 | 10,000 | Disposed |
| July 31, 2017 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $7.26 | July 31, 2027 | 40,000 | Acquired |
| Jan. 3, 2017 | GSIT | Stock Option (right to buy) | Common Stock (20,625) | $4.20 | May 29, 2017 | 20,625 | Disposed |
| Aug. 1, 2016 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $4.99 | Aug. 1, 2026 | 40,000 | Acquired |
| Aug. 3, 2015 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $4.98 | Aug. 3, 2025 | 40,000 | Acquired |
| Aug. 11, 2014 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $5.23 | Aug. 11, 2024 | 40,000 | Acquired |
| July 29, 2013 | GSIT | Stock Option (right to buy) | Common Stock (10,000) | $6.86 | July 29, 2023 | 10,000 | Acquired |
| May 6, 2013 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $5.76 | May 6, 2023 | 40,000 | Acquired |
| Jan. 3, 2013 | GSIT | Stock Option (right to buy) | Common Stock (20,625) | $2.10 | July 15, 2013 | 20,625 | Disposed |
| May 7, 2012 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $4.17 | May 7, 2022 | 40,000 | Acquired |
| May 9, 2011 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $6.54 | May 9, 2021 | 40,000 | Acquired |
| Jan. 5, 2011 | GSIT | Stock Option (right to buy) | Common Stock (20,625) | $5.40 | May 25, 2011 | 20,625 | Disposed |
| Jan. 5, 2011 | GSIT | Stock Option (right to buy) | Common Stock (20,625) | $2.10 | July 15, 2013 | 20,625 | Disposed |
| May 10, 2010 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $6.00 | May 10, 2020 | 40,000 | Acquired |
| Feb. 19, 2010 | GSIT | Stock Option (right to buy) | Common Stock (18,200) | $2.00 | March 27, 2010 | 18,200 | Disposed |
| Feb. 18, 2010 | GSIT | Stock Option (right to buy) | Common Stock (20,625) | $2.00 | March 27, 2010 | 20,625 | Disposed |
| Feb. 18, 2010 | GSIT | Stock Option (right to buy) | Common Stock (2,425) | $2.00 | March 27, 2010 | 2,425 | Disposed |
| May 11, 2009 | GSIT | Stock Option (right to buy) | Common Stock (20,625) | $3.38 | May 11, 2019 | 20,625 | Acquired |
| May 12, 2008 | GSIT | Stock Option (right to buy) | Common Stock (20,625) | $4.30 | May 7, 2018 | 20,625 | Acquired |
| May 29, 2007 | GSIT | Stock Option (right to buy) | Common Stock (20,625) | $4.20 | May 29, 2017 | 20,625 | Acquired |
| April 3, 2007 | GSIT | Series A Preferred Stock | Common Stock (500,000) | — | — | 500,000 | Disposed |
| April 3, 2007 | GSIT | Series A Preferred Stock | Common Stock (500,000) | — | — | 500,000 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 28 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| April 3, 2007 | GSIT | Common Stock | 412,500 | Direct |
| April 3, 2007 | GSIT | Series A Preferred Stock→ Common Stock (500,000) | 500,000 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (20,625) | 20,625 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (20,625) | 20,625 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (18,518) | 18,518 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (2,107) | 2,107 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (20,625) | 20,625 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (20,625) | 20,625 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (18,181) | 18,181 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (18,181) | 18,181 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (18,181) | 18,181 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (2,444) | 2,444 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (2,444) | 2,444 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (2,444) | 2,444 | Direct |
| March 28, 2007 | GSIT | Common Stock | 412,500 | Direct |
| March 28, 2007 | GSIT | Series A Preferred Stock→ Common Stock (500,000) | 500,000 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (20,625) | 20,625 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (20,625) | 20,625 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (18,518) | 18,518 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (2,107) | 2,107 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (20,625) | 20,625 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (20,625) | 20,625 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (18,181) | 18,181 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (18,181) | 18,181 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (18,181) | 18,181 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (2,444) | 2,444 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (2,444) | 2,444 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (2,444) | 2,444 | Direct |