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WALKER CLIFFORD
Insider
First SEC filing: April 4, 2025 · Latest: April 4, 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 |
|---|---|---|---|---|---|---|---|---|---|
| April 2, 2025 | POWI | S | 1,088 | $50.89 | $55,368 | 141,765 Direct | -0.76% | Disposed | 7.0% (price as of 2026-10-02) |
| Feb. 11, 2025 | POWI | S | 865 | $57.28 | $49,547 | 142,853 Direct | -0.60% | Disposed | -4.9% (price as of 2026-10-02) |
| Feb. 10, 2025 | POWI | S | 1,131 | $58.01 | $65,609 | 143,718 Direct | -0.78% | Disposed | -6.1% (price as of 2026-10-02) |
| Feb. 7, 2025 | POWI | A | 2,704 | · | · | 144,849 Direct | +1.90% | Acquired | (price as of 2026-10-02) |
| Feb. 4, 2025 | POWI | S | 1,125 | $60.75 | $68,344 | 142,145 Direct | -0.79% | Disposed | -10.4% (price as of 2026-10-02) |
| Feb. 4, 2025 | POWI | S | 675 | $60.75 | $41,006 | 143,270 Direct | -0.47% | Disposed | -10.4% (price as of 2026-10-02) |
| Feb. 4, 2025 | POWI | S | 672 | $60.75 | $40,824 | 143,945 Direct | -0.46% | Disposed | -10.4% (price as of 2026-10-02) |
| Jan. 28, 2025 | POWI | A | 13,500 | · | · | 144,434 Direct | +10.31% | Acquired | (price as of 2026-10-02) |
| Nov. 27, 2024 | POWI | S | 10,000 | $64.36 | $643,600 | 130,934 Direct | -7.10% | Disposed | -15.4% (price as of 2026-10-02) |
| Nov. 26, 2024 | POWI | G | 65 | · | · | 140,934 Direct | -0.05% | Disposed | (price as of 2026-10-02) |
| April 2, 2024 | POWI | S | 1,096 | $69.04 | $75,668 | 140,834 Direct | -0.77% | Disposed | -21.1% (price as of 2026-10-02) |
| April 1, 2024 | POWI | A | 11,700 | · | · | 141,930 Direct | +8.98% | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2024 | POWI | S | 620 | $75.23 | $46,643 | 130,230 Direct | -0.47% | Disposed | -27.6% (price as of 2026-10-02) |
| Feb. 12, 2024 | POWI | A | 1,641 | · | · | 130,850 Direct | +1.27% | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2024 | POWI | S | 944 | $80.06 | $75,577 | 129,209 Direct | -0.73% | Disposed | -32.0% (price as of 2026-10-02) |
| Feb. 7, 2024 | POWI | S | 882 | $74.04 | $65,303 | 130,153 Direct | -0.67% | Disposed | -26.4% (price as of 2026-10-02) |
| Feb. 7, 2024 | POWI | S | 668 | $74.04 | $49,459 | 131,035 Direct | -0.51% | Disposed | -26.4% (price as of 2026-10-02) |
| Feb. 7, 2024 | POWI | S | 666 | $74.04 | $49,311 | 131,703 Direct | -0.50% | Disposed | -26.4% (price as of 2026-10-02) |
| Aug. 31, 2023 | POWI | S | 10,000 | $83.99 | $839,900 | 132,237 Direct | -7.03% | Disposed | -35.2% (price as of 2026-10-02) |
| April 4, 2023 | POWI | S | 1,545 | $81.84 | $126,443 | 142,097 Direct | -1.08% | Disposed | -33.5% (price as of 2026-10-02) |
| Feb. 14, 2023 | POWI | S | 1,339 | $84.11 | $112,623 | 143,642 Direct | -0.92% | Disposed | -35.3% (price as of 2026-10-02) |
| Feb. 9, 2023 | POWI | A | 9,300 | · | · | 144,981 Direct | +6.85% | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2023 | POWI | S | 355 | $85.08 | $30,203 | 135,681 Direct | -0.26% | Disposed | -36.0% (price as of 2026-10-02) |
| Feb. 8, 2023 | POWI | S | 485 | $85.08 | $41,264 | 136,036 Direct | -0.36% | Disposed | -36.0% (price as of 2026-10-02) |
| Feb. 7, 2023 | POWI | A | 1,011 | · | · | 136,521 Direct | +0.75% | Acquired | (price as of 2026-10-02) |
| Feb. 7, 2023 | POWI | A | 1,380 | · | · | 135,510 Direct | +1.03% | Acquired | (price as of 2026-10-02) |
| Feb. 7, 2023 | POWI | S | 897 | $83.00 | $74,451 | 134,130 Direct | -0.66% | Disposed | -34.4% (price as of 2026-10-02) |
| Feb. 3, 2023 | POWI | S | 617 | $91.32 | $56,344 | 135,027 Direct | -0.45% | Disposed | -40.4% (price as of 2026-10-02) |
| Feb. 2, 2023 | POWI | S | 620 | $89.86 | $55,713 | 135,644 Direct | -0.45% | Disposed | -39.4% (price as of 2026-10-02) |
| April 4, 2022 | POWI | S | 1,501 | $91.25 | $136,966 | 135,957 Direct | -1.09% | Disposed | -40.3% (price as of 2026-10-02) |
| Feb. 14, 2022 | POWI | S | 1,874 | $83.91 | $157,247 | 137,458 Direct | -1.34% | Disposed | -35.1% (price as of 2026-10-02) |
| Feb. 14, 2022 | POWI | S | 1,875 | $83.91 | $157,331 | 139,332 Direct | -1.33% | Disposed | -35.1% (price as of 2026-10-02) |
| Feb. 8, 2022 | POWI | S | 3,687 | $85.34 | $314,649 | 141,207 Direct | -2.54% | Disposed | -36.2% (price as of 2026-10-02) |
| Feb. 8, 2022 | POWI | S | 2,145 | $85.34 | $183,054 | 144,894 Direct | -1.46% | Disposed | -36.2% (price as of 2026-10-02) |
| Feb. 7, 2022 | POWI | A | 10,000 | · | · | 147,039 Direct | +7.30% | Acquired | (price as of 2026-10-02) |
| Feb. 7, 2022 | POWI | A | 4,400 | · | · | 137,039 Direct | +3.32% | Acquired | (price as of 2026-10-02) |
| Feb. 7, 2022 | POWI | S | 819 | $83.74 | $68,583 | 132,639 Direct | -0.61% | Disposed | -35.0% (price as of 2026-10-02) |
| Feb. 2, 2022 | POWI | S | 638 | $79.89 | $50,970 | 126,258 Direct | -0.50% | Disposed | -31.8% (price as of 2026-10-02) |
| Feb. 2, 2022 | POWI | A | 7,200 | · | · | 133,458 Direct | +5.70% | Acquired | (price as of 2026-10-02) |
| April 5, 2021 | POWI | S | 1,510 | $84.38 | $127,414 | 126,619 Direct | -1.18% | Disposed | -35.5% (price as of 2026-10-02) |
| Feb. 17, 2021 | POWI | S | 1,935 | $89.32 | $172,834 | 128,129 Direct | -1.49% | Disposed | -39.0% (price as of 2026-10-02) |
| Feb. 16, 2021 | POWI | S | 1,834 | $94.13 | $172,634 | 130,064 Direct | -1.39% | Disposed | -42.1% (price as of 2026-10-02) |
| Feb. 8, 2021 | POWI | S | 165 | $85.77 | $14,152 | 131,898 Direct | -0.12% | Disposed | -36.5% (price as of 2026-10-02) |
| Feb. 8, 2021 | POWI | S | 2,235 | $85.77 | $191,696 | 132,063 Direct | -1.66% | Disposed | -36.5% (price as of 2026-10-02) |
| Feb. 5, 2021 | POWI | A | 330 | · | · | 134,298 Direct | +0.25% | Acquired | (price as of 2026-10-02) |
| Feb. 5, 2021 | POWI | A | 6,000 | · | · | 133,968 Direct | +4.69% | Acquired | (price as of 2026-10-02) |
| Feb. 5, 2021 | POWI | S | 840 | $85.52 | $71,837 | 127,968 Direct | -0.65% | Disposed | -36.3% (price as of 2026-10-02) |
| Feb. 3, 2021 | POWI | S | 1,503 | $81.49 | $122,479 | 128,808 Direct | -1.15% | Disposed | -33.2% (price as of 2026-10-02) |
| Feb. 1, 2021 | POWI | A | 6,300 | · | · | 130,311 Direct | +5.08% | Acquired | (price as of 2026-10-02) |
| April 2, 2020 | POWI | S | 753 | $81.33 | $61,241 | 61,775 Direct | -1.20% | Disposed | 33.9% (price as of 2026-10-02) |
| Feb. 18, 2020 | POWI | S | 8,000 | $103.14 | $825,120 | 62,528 Direct | -11.34% | Disposed | 5.6% (price as of 2026-10-02) |
| Feb. 14, 2020 | POWI | S | 971 | $105.71 | $102,644 | 70,528 Direct | -1.36% | Disposed | 3.0% (price as of 2026-10-02) |
| Feb. 13, 2020 | POWI | S | 655 | $108.62 | $71,146 | 71,499 Direct | -0.91% | Disposed | 0.3% (price as of 2026-10-02) |
| Feb. 7, 2020 | POWI | S | 1,026 | $102.74 | $105,411 | 72,154 Direct | -1.40% | Disposed | 6.0% (price as of 2026-10-02) |
| Feb. 6, 2020 | POWI | A | 2,879 | · | · | 73,180 Direct | +4.10% | Acquired | (price as of 2026-10-02) |
| Feb. 4, 2020 | POWI | A | 4,800 | · | · | 70,301 Direct | +7.33% | Acquired | (price as of 2026-10-02) |
| Feb. 4, 2020 | POWI | S | 286 | $100.90 | $28,857 | 65,501 Direct | -0.43% | Disposed | 7.9% (price as of 2026-10-02) |
| Jan. 28, 2020 | POWI | S | 1,241 | $99.01 | $122,871 | 65,649 Direct | -1.86% | Disposed | 10.0% (price as of 2026-10-02) |
| Nov. 26, 2019 | POWI | S | 5,000 | $93.77 | $468,850 | 66,890 Direct | -6.96% | Disposed | 16.2% (price as of 2026-10-02) |
| July 30, 2019 | POWI | S | 10,000 | $86.62 | $866,200 | 71,702 Direct | -12.24% | Disposed | 25.7% (price as of 2026-10-02) |
| May 1, 2019 | POWI | S | 10,000 | $78.76 | $787,600 | 81,702 Direct | -10.90% | Disposed | 38.3% (price as of 2026-10-02) |
| May 1, 2019 | POWI | G | 440 | · | · | 91,702 Direct | -0.48% | Disposed | (price as of 2026-10-02) |
| April 2, 2019 | POWI | S | 754 | $71.11 | $53,617 | 92,142 Direct | -0.81% | Disposed | 53.2% (price as of 2026-10-02) |
| Feb. 14, 2019 | POWI | S | 660 | $70.08 | $46,253 | 92,896 Direct | -0.71% | Disposed | 55.4% (price as of 2026-10-02) |
| Feb. 14, 2019 | POWI | S | 1,969 | $70.08 | $137,988 | 93,556 Direct | -2.06% | Disposed | 55.4% (price as of 2026-10-02) |
| Feb. 14, 2019 | POWI | S | 651 | $70.08 | $45,622 | 95,525 Direct | -0.68% | Disposed | 55.4% (price as of 2026-10-02) |
| Feb. 13, 2019 | POWI | A | 5,598 | · | · | 96,176 Direct | +6.18% | Acquired | (price as of 2026-10-02) |
| Feb. 13, 2019 | POWI | A | 1,320 | · | · | 90,578 Direct | +1.48% | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2019 | POWI | A | 7,500 | · | · | 89,258 Direct | +9.17% | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2019 | POWI | S | 5,000 | $68.62 | $343,100 | 81,758 Direct | -5.76% | Disposed | 58.7% (price as of 2026-10-02) |
| Feb. 4, 2019 | POWI | S | 655 | $66.10 | $43,296 | 86,758 Direct | -0.75% | Disposed | 64.8% (price as of 2026-10-02) |
| Jan. 28, 2019 | POWI | S | 888 | $65.18 | $57,880 | 87,237 Direct | -1.01% | Disposed | 67.1% (price as of 2026-10-02) |
| Jan. 28, 2019 | POWI | S | 712 | $65.18 | $46,408 | 88,125 Direct | -0.80% | Disposed | 67.1% (price as of 2026-10-02) |
| Nov. 5, 2018 | POWI | S | 152 | $57.62 | $8,758 | 88,672 Direct | -0.17% | Disposed | 89.0% (price as of 2026-10-02) |
| Aug. 31, 2018 | POWI | S | 1,984 | $72.45 | $143,741 | 88,824 Direct | -2.18% | Disposed | 50.3% (price as of 2026-10-02) |
| April 2, 2018 | POWI | S | 760 | $67.08 | $50,981 | 90,808 Direct | -0.83% | Disposed | 62.4% (price as of 2026-10-02) |
| Feb. 15, 2018 | POWI | S | 2,642 | $63.23 | $167,054 | 91,568 Direct | -2.80% | Disposed | 72.3% (price as of 2026-10-02) |
| Feb. 13, 2018 | POWI | A | 7,500 | · | · | 94,210 Direct | +8.65% | Acquired | (price as of 2026-10-02) |
| Feb. 5, 2018 | POWI | S | 657 | $66.41 | $43,631 | 86,536 Direct | -0.75% | Disposed | 64.0% (price as of 2026-10-02) |
| Feb. 1, 2018 | POWI | A | 7,082 | · | · | 87,193 Direct | +8.84% | Acquired | (price as of 2026-10-02) |
| Jan. 30, 2018 | POWI | S | 530 | $76.46 | $40,524 | 80,111 Direct | -0.66% | Disposed | 42.5% (price as of 2026-10-02) |
| Jan. 29, 2018 | POWI | S | 853 | $77.49 | $66,099 | 80,641 Direct | -1.05% | Disposed | 40.6% (price as of 2026-10-02) |
| Jan. 29, 2018 | POWI | S | 703 | $77.49 | $54,475 | 81,494 Direct | -0.86% | Disposed | 40.6% (price as of 2026-10-02) |
| Nov. 3, 2017 | POWI | S | 157 | $81.11 | $12,734 | 82,197 Direct | -0.19% | Disposed | 34.3% (price as of 2026-10-02) |
| May 4, 2017 | POWI | A | 12,000 | · | · | 82,354 Direct | +17.06% | Acquired | (price as of 2026-10-02) |
| Feb. 22, 2017 | POWI | M | 2,504 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 22, 2017 | POWI | M | 7,736 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 22, 2017 | POWI | S | 7,736 | $66.00 | $510,576 | 70,354 Direct | -9.91% | Disposed | 65.0% (price as of 2026-10-02) |
| Feb. 22, 2017 | POWI | M | 7,736 | $36.95 | $285,845 | 78,090 Direct | +11.00% | Acquired | 194.8% (price as of 2026-10-02) |
| Feb. 22, 2017 | POWI | S | 2,504 | $66.00 | $165,264 | 70,354 Direct | -3.44% | Disposed | 65.0% (price as of 2026-10-02) |
| Feb. 22, 2017 | POWI | M | 2,504 | $42.88 | $107,372 | 72,858 Direct | +3.56% | Acquired | 154.0% (price as of 2026-10-02) |
| Feb. 21, 2017 | POWI | M | 4,092 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 21, 2017 | POWI | M | 3,382 | · | · | 7,736 Direct | -30.42% | Disposed | (price as of 2026-10-02) |
| Feb. 21, 2017 | POWI | S | 4,092 | $66.00 | $270,072 | 70,354 Direct | -5.50% | Disposed | 65.0% (price as of 2026-10-02) |
| Feb. 21, 2017 | POWI | M | 4,092 | $42.88 | $175,465 | 74,446 Direct | +5.82% | Acquired | 154.0% (price as of 2026-10-02) |
| Feb. 21, 2017 | POWI | S | 3,382 | $66.00 | $223,212 | 70,354 Direct | -4.59% | Disposed | 65.0% (price as of 2026-10-02) |
| Feb. 21, 2017 | POWI | M | 3,382 | $36.95 | $124,965 | 73,736 Direct | +4.81% | Acquired | 194.8% (price as of 2026-10-02) |
| Feb. 13, 2017 | POWI | M | 800 | $42.88 | $34,304 | 71,154 Direct | +1.14% | Acquired | 154.0% (price as of 2026-10-02) |
| Feb. 13, 2017 | POWI | S | 800 | $67.03 | $53,624 | 70,354 Direct | -1.12% | Disposed | 62.5% (price as of 2026-10-02) |
| Feb. 13, 2017 | POWI | M | 800 | · | · | 4,092 Direct | -16.35% | Disposed | (price as of 2026-10-02) |
Showing latest 100 of 354 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 |
|---|---|---|---|---|---|---|---|
| Feb. 22, 2017 | POWI | Incentive Stock Option (right to buy) | Common Stock | $42.88 | May 8, 2022 | 2,504 | Disposed |
| Feb. 22, 2017 | POWI | Incentive Stock Option (right to buy) | Common Stock | $36.95 | May 5, 2021 | 7,736 | Disposed |
| Feb. 21, 2017 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $42.88 | May 8, 2022 | 4,092 | Disposed |
| Feb. 21, 2017 | POWI | Incentive Stock Option (right to buy) | Common Stock | $36.95 | May 5, 2021 | 3,382 | Disposed |
| Feb. 13, 2017 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $42.88 | May 8, 2022 | 800 | Disposed |
| Feb. 10, 2017 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $42.88 | May 8, 2022 | 2,430 | Disposed |
| Feb. 9, 2017 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $42.88 | May 8, 2022 | 2,174 | Disposed |
| Feb. 9, 2017 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $38.07 | May 3, 2020 | 12,000 | Disposed |
| Feb. 9, 2017 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $36.95 | May 5, 2021 | 882 | Disposed |
| Nov. 3, 2016 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $25.25 | Aug. 15, 2017 | 21,112 | Disposed |
| Nov. 3, 2016 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $21.14 | April 28, 2019 | 2,500 | Disposed |
| Nov. 2, 2016 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $25.25 | Aug. 15, 2017 | 1,434 | Disposed |
| Nov. 1, 2016 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $25.25 | Aug. 15, 2017 | 12,454 | Disposed |
| Feb. 6, 2014 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $26.75 | Feb. 7, 2016 | 40,000 | Disposed |
| Aug. 9, 2013 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $27.22 | Feb. 4, 2014 | 7,954 | Disposed |
| Aug. 7, 2013 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $27.22 | Feb. 4, 2014 | 100 | Disposed |
| Aug. 6, 2013 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $27.22 | Feb. 4, 2014 | 33,273 | Disposed |
| Aug. 6, 2013 | POWI | Incentive Stock Option (right to buy) | Common Stock | $27.22 | Feb. 4, 2014 | 3,673 | Disposed |
| Feb. 12, 2013 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $21.14 | April 28, 2019 | 13,710 | Disposed |
| Feb. 11, 2013 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $21.14 | April 28, 2019 | 12,000 | Disposed |
| Feb. 7, 2013 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $21.14 | April 28, 2019 | 11,790 | Disposed |
| May 8, 2012 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $42.88 | May 8, 2022 | 9,496 | Acquired |
| May 8, 2012 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $17.18 | Jan. 24, 2015 | 50,000 | Disposed |
| May 8, 2012 | POWI | Incentive Stock Option (right to buy) | Common Stock | $42.88 | May 8, 2022 | 2,504 | Acquired |
| Feb. 28, 2012 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $18.95 | Jan. 8, 2013 | 20,504 | Disposed |
| Feb. 28, 2012 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $18.95 | Jan. 8, 2013 | 2,934 | Disposed |
| Feb. 7, 2012 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $17.75 | Jan. 8, 2013 | 18,863 | Disposed |
| Feb. 7, 2012 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $17.75 | Jan. 8, 2013 | 2,699 | Disposed |
| Feb. 7, 2012 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $14.82 | Feb. 21, 2012 | 26,041 | Disposed |
| Nov. 8, 2011 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $14.82 | Feb. 21, 2012 | 10,000 | Disposed |
| Aug. 31, 2011 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $14.82 | Feb. 21, 2012 | 4,779 | Disposed |
| Aug. 31, 2011 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $14.82 | Feb. 21, 2012 | 5,221 | Disposed |
| May 5, 2011 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $36.95 | May 5, 2021 | 882 | Acquired |
| May 5, 2011 | POWI | Incentive Stock Option (right to buy) | Common Stock | $36.95 | May 5, 2021 | 11,118 | Acquired |
| Nov. 22, 2010 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $12.10 | May 31, 2011 | 13,683 | Disposed |
| Nov. 19, 2010 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $12.10 | May 31, 2011 | 920 | Disposed |
| Nov. 18, 2010 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $12.10 | May 31, 2011 | 9,348 | Disposed |
| Nov. 18, 2010 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $12.10 | May 31, 2011 | 7,403 | Disposed |
| May 3, 2010 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $38.07 | May 3, 2020 | 12,000 | Acquired |
| Aug. 21, 2009 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $15.06 | April 14, 2010 | 3,300 | Disposed |
| Aug. 21, 2009 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $15.06 | April 14, 2010 | 11,700 | Disposed |
| Aug. 6, 2009 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $15.06 | April 14, 2010 | 8,361 | Disposed |
| Aug. 6, 2009 | POWI | Incentive Stock Option (right to buy) | Common Stock | $15.06 | April 14, 2010 | 6,639 | Disposed |
| Aug. 4, 2009 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $14.82 | Feb. 21, 2012 | 400 | Disposed |
| Aug. 4, 2009 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $14.82 | Feb. 21, 2012 | 600 | Disposed |
| Aug. 4, 2009 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $14.82 | Feb. 21, 2012 | 9,000 | Disposed |
| April 28, 2009 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $21.14 | April 28, 2019 | 40,000 | Acquired |
| Dec. 31, 2008 | POWI | Stock Option (right to buy Common Stock) | Common Stock | $31.15 | April 29, 2018 | 32,000 | Disposed |
| Dec. 8, 2008 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $14.82 | Feb. 21, 2012 | 6,891 | Disposed |
| April 29, 2008 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $31.15 | April 29, 2018 | 32,000 | Acquired |
| Feb. 21, 2008 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $14.82 | Feb. 21, 2012 | 100 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $12.10 | May 31, 2011 | 100 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $14.82 | Feb. 21, 2012 | 100 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $14.82 | Feb. 21, 2012 | 300 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $14.82 | Feb. 21, 2012 | 300 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $14.82 | Feb. 21, 2012 | 300 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $14.82 | Feb. 21, 2012 | 968 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $12.10 | May 31, 2011 | 332 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $12.10 | May 31, 2011 | 400 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $12.10 | May 31, 2011 | 400 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $12.10 | May 31, 2011 | 100 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $12.10 | May 31, 2011 | 200 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $12.10 | May 31, 2011 | 331 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $12.10 | May 31, 2011 | 269 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $12.10 | May 31, 2011 | 314 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $12.10 | May 31, 2011 | 300 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $12.10 | May 31, 2011 | 100 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $12.10 | May 31, 2011 | 39 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $12.10 | May 31, 2011 | 361 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $12.10 | May 31, 2011 | 200 | Disposed |
| Dec. 7, 2007 | POWI | Non-Qualfied Stock Option(right to buy) | Common Stock | $12.10 | May 31, 2011 | 100 | Disposed |
| Aug. 28, 2007 | POWI | Incentive Stock Option (right to buy) | Common Stock | $12.10 | May 31, 2011 | 100 | Disposed |
| Aug. 15, 2007 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $25.25 | Aug. 15, 2017 | 35,000 | Acquired |
| Dec. 21, 2006 | POWI | Non Qualified Stock Option(right to buy) | Common Stock | $18.95 | Jan. 8, 2013 | 20,504 | Acquired |
| Dec. 21, 2006 | POWI | Non Qualified Stock Option(right to buy) | Common Stock | $17.75 | Jan. 8, 2013 | 20,504 | Disposed |
| Dec. 21, 2006 | POWI | Non Qualified Stock Option(right to buy) | Common Stock | $18.95 | Jan. 8, 2013 | 2,934 | Acquired |
| Dec. 21, 2006 | POWI | Non Qualified Stock Option(right to buy) | Common Stock | $17.75 | Jan. 8, 2013 | 2,934 | Disposed |
| Feb. 7, 2006 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $26.75 | Feb. 7, 2016 | 40,000 | Acquired |
| Jan. 24, 2005 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $17.18 | Jan. 24, 2015 | 50,000 | Acquired |
| Feb. 4, 2004 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $27.22 | Feb. 4, 2014 | 41,327 | Acquired |
| Feb. 4, 2004 | POWI | Incentive Stock Option (right to buy) | Common Stock | $27.22 | Feb. 4, 2014 | 3,673 | Acquired |
| Nov. 25, 2003 | POWI | Non-Qualified Stock Option (right to buy) [F1] | Common Stock | $14.22 | April 20, 2009 | 12,400 | Disposed |
| Aug. 21, 2003 | POWI | · | Common Stock | $14.22 | April 20, 2009 | 50,000 | Disposed |
| Aug. 21, 2003 | POWI | Non-Qualified Stock Option (right to buy) | Common Stock | $14.22 | April 20, 2009 | 50,000 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).