Shiao Kwang Edmund Tang
CIK 1374601 · View on SEC EDGAR ↗
Insider
First SEC filing: Sept. 6, 2006 · Latest: Jan. 8, 2007
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 37 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
37 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Oct. 10, 2017 | DIOD | S 10b5-1 | 16,722 | $31.00 | $518,382 | 72,395 Direct | -18.76% | Disposed | 193.8% (price as of 2026-08-21) |
| Oct. 3, 2017 | DIOD | S 10b5-1 | 16,076 | $30.50 | $490,318 | 71,617 Direct | -18.33% | Disposed | 198.6% (price as of 2026-08-21) |
| Oct. 2, 2017 | DIOD | S 10b5-1 | 3,934 | $30.00 | $118,020 | 70,043 Direct | -5.32% | Disposed | 203.6% (price as of 2026-08-21) |
| Oct. 2, 2017 | DIOD | S 10b5-1 | 7,867 | $30.01 | $236,089 | 73,977 Direct | -9.61% | Disposed | 203.5% (price as of 2026-08-21) |
| May 10, 2017 | DIOD | S 10b5-1 | 11,748 | $27.00 | $317,196 | 69,844 Direct | -14.40% | Disposed | 237.3% (price as of 2026-08-21) |
| March 20, 2015 | DIOD | S 10b5-1 | 71,029 | $30.00 | $2,130,870 | 42,009 Direct | -62.84% | Disposed | 203.6% (price as of 2026-08-21) |
| July 2, 2014 | DIOD | S | 689 | $28.82 | $19,857 | 43,388 Direct | -1.56% | Disposed | 216.0% (price as of 2026-08-21) |
| July 2, 2014 | DIOD | S | 11 | $29.18 | $321 | 44,077 Direct | -0.02% | Disposed | 212.1% (price as of 2026-08-21) |
| June 9, 2014 | DIOD | S 10b5-1 | 3,900 | $30.00 | $117,000 | 44,088 Direct | -8.13% | Disposed | 203.6% (price as of 2026-08-21) |
| May 28, 2014 | DIOD | S | 1,762 | $27.52 | $48,490 | 47,988 Direct | -3.54% | Disposed | 231.0% (price as of 2026-08-21) |
| May 28, 2014 | DIOD | S | 5 | $27.79 | $139 | 49,750 Direct | -0.01% | Disposed | 227.8% (price as of 2026-08-21) |
| May 28, 2014 | DIOD | S | 10 | $27.78 | $278 | 49,755 Direct | -0.02% | Disposed | 227.9% (price as of 2026-08-21) |
| July 11, 2013 | DIOD | S 10b5-1 | 6,150 | $28.00 | $172,200 | 39,765 Direct | -13.39% | Disposed | 225.3% (price as of 2026-08-21) |
| July 5, 2013 | DIOD | S 10b5-1 | 2,000 | $27.00 | $54,000 | 45,915 Direct | -4.17% | Disposed | 237.3% (price as of 2026-08-21) |
| May 29, 2013 | DIOD | S | 1,725 | $23.46 | $40,468 | 37,915 Direct | -4.35% | Disposed | 288.2% (price as of 2026-08-21) |
| May 28, 2013 | DIOD | S | 541 | $23.37 | $12,643 | 39,640 Direct | -1.35% | Disposed | 289.7% (price as of 2026-08-21) |
| March 4, 2011 | DIOD | S 10b5-1 | 3,000 | $31.01 | $93,030 | 22,181 Direct | -11.91% | Disposed | 193.7% (price as of 2026-08-21) |
| March 2, 2011 | DIOD | S 10b5-1 | 3,000 | $30.00 | $90,000 | 25,181 Direct | -10.65% | Disposed | 203.6% (price as of 2026-08-21) |
| Feb. 16, 2011 | DIOD | S | 3,400 | $30.40 | $103,360 | 29,781 Direct | -10.25% | Disposed | 199.6% (price as of 2026-08-21) |
| Feb. 16, 2011 | DIOD | S | 1,600 | $30.39 | $48,624 | 28,181 Direct | -5.37% | Disposed | 199.7% (price as of 2026-08-21) |
| Nov. 24, 2010 | DIOD | S | 800 | $24.79 | $19,832 | 37,531 Direct | -2.09% | Disposed | 267.4% (price as of 2026-08-21) |
| Nov. 24, 2010 | DIOD | S | 4,100 | $24.75 | $101,475 | 33,431 Direct | -10.92% | Disposed | 268.0% (price as of 2026-08-21) |
| Nov. 24, 2010 | DIOD | S | 250 | $24.75 | $6,188 | 33,181 Direct | -0.75% | Disposed | 268.0% (price as of 2026-08-21) |
| Feb. 12, 2010 | DIOD | S | 5,000 | $20.00 | $100,000 | 30,531 Direct | -14.07% | Disposed | 355.4% (price as of 2026-08-21) |
| Feb. 27, 2009 | DIOD | P | 2,000 | $7.81 | $15,620 | 28,931 Direct | +7.43% | Acquired | 1066.2% (price as of 2026-08-21) |
| Feb. 24, 2009 | DIOD | P | 3,000 | $7.33 | $21,990 | 26,931 Direct | +12.54% | Acquired | 1142.6% (price as of 2026-08-21) |
| Nov. 21, 2008 | DIOD | P | 900 | $3.74 | $3,366 | 21,681 Direct | +4.33% | Acquired | 2335.4% (price as of 2026-08-21) |
| Nov. 21, 2008 | DIOD | P | 2,100 | $3.75 | $7,875 | 23,781 Direct | +9.69% | Acquired | 2328.9% (price as of 2026-08-21) |
| Nov. 20, 2008 | DIOD | P | 2,000 | $4.00 | $8,000 | 20,781 Direct | +10.65% | Acquired | 2177.1% (price as of 2026-08-21) |
| Nov. 19, 2008 | DIOD | P | 2,000 | $4.50 | $9,000 | 18,781 Direct | +11.92% | Acquired | 1924.1% (price as of 2026-08-21) |
| Nov. 18, 2008 | DIOD | P | 2,000 | $4.75 | $9,500 | 16,781 Direct | +13.53% | Acquired | 1817.5% (price as of 2026-08-21) |
| Nov. 17, 2008 | DIOD | P | 3,000 | $5.00 | $15,000 | 14,781 Direct | +25.46% | Acquired | 1721.7% (price as of 2026-08-21) |
| Nov. 14, 2008 | DIOD | P | 2,335 | $5.41 | $12,632 | 11,116 Direct | +26.59% | Acquired | 1583.6% (price as of 2026-08-21) |
| Nov. 14, 2008 | DIOD | P | 665 | $5.43 | $3,611 | 11,781 Direct | +5.98% | Acquired | 1577.4% (price as of 2026-08-21) |
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. 10, 2017 | DIOD | 05/27/14 DIOD NQSO | Diodes Incorporated Common Stock - Diodes (7,500) | $27.92 | May 27, 2022 | 7,500 | Disposed |
| Oct. 10, 2017 | DIOD | 06/06/13 DIOD NQSO | Diodes Incorporated Common Stock - Diodes (10,000) | $23.35 | June 6, 2021 | 10,000 | Disposed |
| Oct. 3, 2017 | DIOD | 05/21/12 DIOD NQSO | Diodes Incorporated Common Stock - Diodes (17,650) | $19.27 | May 21, 2022 | 17,650 | Disposed |
| Oct. 2, 2017 | DIOD | 05/29/2008 DIOD NQSO | Diodes Incorporated Common Stock - Diodes (12,000) | $27.95 | May 29, 2018 | 12,000 | Disposed |
| May 10, 2017 | DIOD | 5/31/2007 DIOD NQSO | Diodes Incorporated Common Stock - Diodes (12,000) | $24.66 | May 31, 2017 | 12,000 | Disposed |
| March 20, 2015 | DIOD | 05/28/09 DIOD NQSO | Diodes Incorporated Common Stock - Diodes (24,000) | $15.05 | May 28, 2019 | 24,000 | Disposed |
| March 20, 2015 | DIOD | 05/24/2010 DIOD NQSO | Diodes Incorporated Common Stock - Diodes (28,000) | $19.28 | May 24, 2020 | 28,000 | Disposed |
| March 20, 2015 | DIOD | 05/21/12 DIOD NQSO | Diodes Incorporated Common Stock - Diodes (17,650) | $19.27 | May 21, 2022 | 17,650 | Disposed |
| May 27, 2014 | DIOD | 05/27/14 DIOD NQSO | Diodes Incorporated Common Stock - Diodes (10,000) | $27.92 | May 27, 2022 | 10,000 | Acquired |
| June 6, 2013 | DIOD | 06/06/13 DIOD NQSO | Diodes Incorporated Common Stock (10,000) | $23.35 | June 6, 2021 | 10,000 | Acquired |
| May 21, 2012 | DIOD | 05/21/12 DIOD NQSO | Diodes Incorporated Common Stock (35,300) | $19.27 | May 21, 2022 | 35,300 | Acquired |
| May 26, 2011 | DIOD | 05/26/11 DIOD NQSO | Diodes Incorporated Common Stock (35,300) | $29.21 | May 26, 2021 | 35,300 | Acquired |
| May 24, 2010 | DIOD | Common Stock (Right to Buy) | Diodes Inc. Common Stock (28,000) | $19.28 | May 24, 2020 | 28,000 | Acquired |
| May 28, 2009 | DIOD | Common Stock (Right-to-Buy) | Diodes Inc. Common Stock (24,000) | $15.05 | May 28, 2019 | 24,000 | Acquired |
| May 29, 2008 | DIOD | Common Stock (Right-to-buy) | Diodes Inc. Common Stock (12,000) | $27.95 | May 29, 2018 | 12,000 | Acquired |
| May 31, 2007 | DIOD | Common Stock (Right to Buy) | Diodes Inc. Common Stock (8,000) | $36.99 | May 31, 2017 | 8,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Sept. 6, 2006 | DIOD | Common Stock | 100 | Direct |