Robert Yau
CIK 1394411 · View on SEC EDGAR ↗
Insider
First SEC filing: April 3, 2007 · Latest: April 3, 2007
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 55 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
55 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 16, 2024 | GSIT | S | 235 | $3.21 | $754 | 923,614 Indirect | -0.03% | Disposed | 89.4% (price as of 2026-08-19) |
| May 15, 2024 | GSIT | S | 3,590 | $3.20 | $11,488 | 923,849 Indirect | -0.39% | Disposed | 90.0% (price as of 2026-08-19) |
| Aug. 30, 2023 | GSIT | S | 12,500 | $3.02 | $37,750 | 927,439 Indirect | -1.33% | Disposed | 101.3% (price as of 2026-08-19) |
| Aug. 29, 2023 | GSIT | S | 15,263 | $3.27 | $49,910 | 939,939 Indirect | -1.60% | Disposed | 85.9% (price as of 2026-08-19) |
| Aug. 24, 2023 | GSIT | S | 18,740 | $3.50 | $65,590 | 955,202 Indirect | -1.92% | Disposed | 73.7% (price as of 2026-08-19) |
| Aug. 23, 2023 | GSIT | S | 3,497 | $3.50 | $12,240 | 973,942 Indirect | -0.36% | Disposed | 73.7% (price as of 2026-08-19) |
| Aug. 11, 2023 | GSIT | S | 4,000 | $3.25 | $13,000 | 0 Indirect | -100.00% | Disposed | 87.1% (price as of 2026-08-19) |
| Nov. 22, 2021 | GSIT | S | 11,676 | $6.03 | $70,406 | 977,439 Indirect | -1.18% | Disposed | 0.8% (price as of 2026-08-19) |
| Nov. 19, 2021 | GSIT | S | 28,324 | $5.93 | $167,961 | 989,115 Indirect | -2.78% | Disposed | 2.5% (price as of 2026-08-19) |
| Feb. 11, 2021 | GSIT | S | 20,000 | $8.00 | $160,000 | 1,017,439 Indirect | -1.93% | Disposed | -24.0% (price as of 2026-08-19) |
| May 4, 2020 | GSIT | S 10b5-1 | 40,000 | $7.02 | $280,800 | 1,017,439 Indirect | -3.78% | Disposed | -13.4% (price as of 2026-08-19) |
| Nov. 6, 2019 | GSIT | S | 588 | $8.00 | $4,704 | 1,017,439 Indirect | -0.06% | Disposed | -24.0% (price as of 2026-08-19) |
| Nov. 5, 2019 | GSIT | S | 7,766 | $8.00 | $62,128 | 1,018,027 Indirect | -0.76% | Disposed | -24.0% (price as of 2026-08-19) |
| Sept. 19, 2019 | GSIT | S 10b5-1 | 4,592 | $9.00 | $41,328 | 1,025,793 Indirect | -0.45% | Disposed | -32.4% (price as of 2026-08-19) |
| Sept. 18, 2019 | GSIT | S 10b5-1 | 100 | $9.00 | $900 | 1,030,385 Indirect | -0.01% | Disposed | -32.4% (price as of 2026-08-19) |
| Sept. 17, 2019 | GSIT | S 10b5-1 | 37 | $9.00 | $333 | 1,030,485 Indirect | 0.00% | Disposed | -32.4% (price as of 2026-08-19) |
| May 3, 2019 | GSIT | S 10b5-1 | 10,625 | $8.05 | $85,531 | 1,030,522 Indirect | -1.02% | Disposed | -24.5% (price as of 2026-08-19) |
| March 19, 2019 | GSIT | S 10b5-1 | 7,946 | $8.20 | $65,157 | 1,030,522 Indirect | -0.77% | Disposed | -25.9% (price as of 2026-08-19) |
| Feb. 26, 2019 | GSIT | S 10b5-1 | 54 | $8.20 | $443 | 1,030,522 Indirect | -0.01% | Disposed | -25.9% (price as of 2026-08-19) |
| Feb. 15, 2019 | GSIT | S 10b5-1 | 2,000 | $8.20 | $16,400 | 1,030,522 Indirect | -0.19% | Disposed | -25.9% (price as of 2026-08-19) |
| Feb. 15, 2019 | GSIT | S 10b5-1 | 2,000 | $8.20 | $16,400 | 1,030,522 Indirect | -0.19% | Disposed | -25.9% (price as of 2026-08-19) |
| March 8, 2018 | GSIT | S 10b5-1 | 10,425 | $8.40 | $87,570 | 1,030,522 Indirect | -1.00% | Disposed | -27.6% (price as of 2026-08-19) |
| March 7, 2018 | GSIT | S 10b5-1 | 7,274 | $8.00 | $58,192 | 1,030,722 Indirect | -0.70% | Disposed | -24.0% (price as of 2026-08-19) |
| March 7, 2018 | GSIT | S 10b5-1 | 200 | $8.40 | $1,680 | 1,030,522 Indirect | -0.02% | Disposed | -27.6% (price as of 2026-08-19) |
| March 7, 2018 | GSIT | S 10b5-1 | 7,274 | $8.00 | $58,192 | 1,030,722 Indirect | -0.70% | Disposed | -24.0% (price as of 2026-08-19) |
| March 7, 2018 | GSIT | S 10b5-1 | 200 | $8.40 | $1,680 | 1,030,522 Indirect | -0.02% | Disposed | -27.6% (price as of 2026-08-19) |
| March 5, 2018 | GSIT | S 10b5-1 | 2,386 | $8.00 | $19,088 | 1,030,522 Indirect | -0.23% | Disposed | -24.0% (price as of 2026-08-19) |
| March 5, 2018 | GSIT | S 10b5-1 | 2,386 | $8.00 | $19,088 | 1,030,522 Indirect | -0.23% | Disposed | -24.0% (price as of 2026-08-19) |
| Feb. 28, 2018 | GSIT | S 10b5-1 | 9 | $8.00 | $72 | 1,030,522 Indirect | 0.00% | Disposed | -24.0% (price as of 2026-08-19) |
| Feb. 28, 2018 | GSIT | S 10b5-1 | 9 | $8.00 | $72 | 1,030,522 Indirect | 0.00% | Disposed | -24.0% (price as of 2026-08-19) |
| Feb. 27, 2018 | GSIT | S 10b5-1 | 331 | $8.00 | $2,648 | 1,030,522 Indirect | -0.03% | Disposed | -24.0% (price as of 2026-08-19) |
| Feb. 27, 2018 | GSIT | S 10b5-1 | 331 | $8.00 | $2,648 | 1,030,522 Indirect | -0.03% | Disposed | -24.0% (price as of 2026-08-19) |
| May 9, 2017 | GSIT | S | 20,625 | $7.40 | $152,625 | 1,030,522 Indirect | -1.96% | Disposed | -17.8% (price as of 2026-08-19) |
| Dec. 7, 2016 | GSIT | S 10b5-1 | 25,000 | $5.49 | $137,250 | 1,030,522 Indirect | -2.37% | Disposed | 10.7% (price as of 2026-08-19) |
| Nov. 21, 2016 | GSIT | S | 25,394 | $5.20 | $132,049 | 1,055,522 Indirect | -2.35% | Disposed | 16.9% (price as of 2026-08-19) |
| Nov. 18, 2016 | GSIT | S | 100 | $5.20 | $520 | 1,080,916 Indirect | -0.01% | Disposed | 16.9% (price as of 2026-08-19) |
| Nov. 16, 2016 | GSIT | S | 90 | $5.20 | $468 | 1,081,016 Indirect | -0.01% | Disposed | 16.9% (price as of 2026-08-19) |
| Nov. 1, 2016 | GSIT | S | 4,416 | $5.22 | $23,052 | 1,081,106 Indirect | -0.41% | Disposed | 16.5% (price as of 2026-08-19) |
| Jan. 20, 2015 | GSIT | S 10b5-1 | 20,000 | $5.30 | $106,000 | 1,085,522 Indirect | -1.81% | Disposed | 14.7% (price as of 2026-08-19) |
| Nov. 24, 2014 | GSIT | S | 2,743 | $5.05 | $13,852 | 1,105,522 Indirect | -0.25% | Disposed | 20.4% (price as of 2026-08-19) |
| Nov. 20, 2014 | GSIT | S | 2,568 | $5.30 | $13,610 | 1,108,265 Indirect | -0.23% | Disposed | 14.7% (price as of 2026-08-19) |
| Nov. 20, 2013 | GSIT | S | 20,000 | $6.50 | $130,000 | 1,110,833 Indirect | -1.77% | Disposed | -6.5% (price as of 2026-08-19) |
| Nov. 22, 2011 | GSIT | S | 15,000 | $4.75 | $71,250 | 1,130,833 Direct | -1.31% | Disposed | 28.0% (price as of 2026-08-19) |
| May 11, 2011 | GSIT | S 10b5-1 | 30,938 | $6.79 | $210,069 | 0 Direct | -100.00% | Disposed | -10.5% (price as of 2026-08-19) |
| Aug. 3, 2010 | GSIT | S 10b5-1 | 10,938 | $7.00 | $76,566 | 0 Direct | -100.00% | Disposed | -13.1% (price as of 2026-08-19) |
Showing latest 100 of 117 transactions
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 |
|---|---|---|---|---|---|---|---|
| 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 (60,000) | $2.27 | Dec. 2, 2032 | 60,000 | 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 |
| Feb. 11, 2021 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $6.54 | May 21, 2021 | 20,000 | Disposed |
| Aug. 3, 2020 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $5.83 | Aug. 3, 2030 | 40,000 | Acquired |
| May 4, 2020 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $6.00 | May 10, 2020 | 40,000 | Disposed |
| July 29, 2019 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $8.30 | July 29, 2029 | 40,000 | Acquired |
| May 3, 2019 | GSIT | Stock Option (right to buy) | Common Stock (10,625) | $3.38 | May 11, 2019 | 10,625 | Disposed |
| March 19, 2019 | GSIT | Stock Option (right to buy) | Common Stock (7,946) | $3.38 | May 11, 2019 | 7,946 | Disposed |
| Feb. 26, 2019 | GSIT | Stock Option (right to buy) | Common Stock (54) | $3.38 | May 11, 2019 | 54 | Disposed |
| Feb. 15, 2019 | GSIT | Stock Option (right to buy) | Common Stock (2,000) | $3.38 | May 11, 2019 | 2,000 | Disposed |
| Feb. 15, 2019 | GSIT | Stock Option (right to buy) | Common Stock (2,000) | $3.38 | May 11, 2019 | 2,000 | Disposed |
| March 8, 2018 | GSIT | Stock Option (right to buy) | Common Stock (10,425) | $4.30 | May 7, 2018 | 10,425 | Disposed |
| March 7, 2018 | GSIT | Stock Option (right to buy) | Common Stock (7,474) | $4.30 | May 7, 2018 | 7,474 | Disposed |
| March 7, 2018 | GSIT | Stock Option (right to buy) | Common Stock (7,474) | $4.20 | May 7, 2018 | 7,474 | Disposed |
| March 5, 2018 | GSIT | Stock Option (right to buy) | Common Stock (2,386) | $4.30 | May 7, 2018 | 2,386 | Disposed |
| March 5, 2018 | GSIT | Stock Option (right to buy) | Common Stock (2,386) | $4.20 | May 7, 2018 | 2,386 | Disposed |
| Feb. 28, 2018 | GSIT | Stock Option (right to buy) | Common Stock (331) | $4.30 | May 7, 2018 | 331 | Disposed |
| Feb. 28, 2018 | GSIT | Stock Option (right to buy) | Common Stock (9) | $4.30 | May 7, 2018 | 9 | Disposed |
| Feb. 28, 2018 | GSIT | Stock Option (right to buy) | Common Stock (9) | $4.20 | May 7, 2018 | 9 | Disposed |
| Feb. 28, 2018 | GSIT | Stock Option (right to buy) | Common Stock (331) | $4.20 | May 7, 2018 | 331 | Disposed |
| July 31, 2017 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $7.26 | July 31, 2027 | 40,000 | Acquired |
| May 9, 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 |
| May 7, 2012 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $4.17 | May 7, 2022 | 40,000 | Acquired |
| May 11, 2011 | GSIT | Stock Option (right to buy) | Common Stock (18,518) | $5.40 | May 25, 2011 | 18,518 | Disposed |
| May 11, 2011 | GSIT | Stock Option (right to buy) | Common Stock (12,420) | $5.40 | May 25, 2011 | 12,420 | Disposed |
| May 9, 2011 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $6.54 | May 9, 2021 | 40,000 | Acquired |
| Aug. 3, 2010 | GSIT | Stock Option (right to buy) | Common Stock (10,938) | $2.10 | July 15, 2013 | 10,938 | Disposed |
| May 10, 2010 | GSIT | Stock Option (right to buy) | Common Stock (40,000) | $6.00 | May 10, 2020 | 40,000 | Acquired |
| April 29, 2010 | GSIT | Stock Option (right to buy) | Common Stock (20,000) | $2.10 | July 15, 2013 | 20,000 | Disposed |
| Jan. 6, 2010 | GSIT | Stock Option (right to buy) | Common Stock (61,876) | $2.00 | March 27, 2010 | 61,876 | 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 |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 26 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| April 3, 2007 | GSIT | Common Stock | 1,145,833 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (30,938) | 30,938 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (30,938) | 30,938 | 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 (12,420) | 12,420 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (30,938) | 30,938 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (30,938) | 30,938 | 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 (2,445) | 2,445 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (2,445) | 2,445 | Direct |
| April 3, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (2,445) | 2,445 | Direct |
| March 28, 2007 | GSIT | Common Stock | 1,145,833 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (30,938) | 30,938 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (30,938) | 30,938 | 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 (12,420) | 12,420 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (30,938) | 30,938 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (30,938) | 30,938 | 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 (2,445) | 2,445 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (2,445) | 2,445 | Direct |
| March 28, 2007 | GSIT | Stock Option (right to buy)→ Common Stock (2,445) | 2,445 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
GSIT
President, Engineering| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2021 | $285,870 | — | — | $89,776 | $31,250 | — | — | $406,896 |
| 2020 | $285,870 | — | — | $116,168 | $60,292 | — | — | $462,330 |
| 2019 | $283,040 | — | — | $96,732 | $192,667 | — | — | $572,439 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.