David Jeffrey Richardson
CIK 1329724 · View on SEC EDGAR ↗
First SEC filing: April 3, 2025 · Latest: April 3, 2025
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Insider transactions
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 |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 25, 2026 | KLIC | S | 9,364 | $72.19 | $675,987 | 17,694 Indirect | -34.61% | Disposed | 17.5% (price as of 2026-08-20) |
| Dec. 6, 2023 | AMBA | S | 8,056 | $58.75 | $473,290 | 22,438 Direct | -26.42% | Disposed | 25.6% (price as of 2026-08-20) |
| Dec. 9, 2021 | AMBA | S | 8,055 | $216.00 | $1,739,880 | 14,595 Direct | -35.56% | Disposed | -65.8% (price as of 2026-08-20) |
| Aug. 20, 2020 | LSCC | S | 10,000 | $29.01 | $290,100 | 23,028 Direct | -30.28% | Disposed | 305.3% (price as of 2026-08-20) |
| Aug. 20, 2020 | LSCC | S | 29,500 | $29.01 | $855,795 | 23,028 Direct | -56.16% | Disposed | 305.3% (price as of 2026-08-20) |
| June 5, 2020 | AMBA | S | 7,453 | $54.92 | $409,319 | 9,046 Direct | -45.17% | Disposed | 34.4% (price as of 2026-08-20) |
Showing latest 100 of 182 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 |
|---|---|---|---|---|---|---|---|
| Dec. 6, 2023 | AMBA | Non-Qualified Stock Option (right to buy) | Ordinary Shares (6,667) | $31.25 | March 9, 2024 | 6,667 | Disposed |
| Dec. 6, 2023 | AMBA | Non-Qualified Stock Option (right to buy) | Ordinary Shares (1,389) | $38.92 | Sept. 7, 2024 | 1,389 | Disposed |
| March 15, 2023 | AMBA | Restricted Stock Units | Ordinary Shares (779) | — | Sept. 15, 2023 | 779 | Disposed |
| Dec. 16, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (779) | — | Sept. 15, 2023 | 779 | Disposed |
| Sept. 16, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (377) | — | Sept. 15, 2022 | 377 | Disposed |
| Sept. 1, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (3,117) | — | Sept. 15, 2023 | 3,117 | Acquired |
| June 16, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (377) | — | Sept. 15, 2022 | 377 | Disposed |
| May 10, 2022 | LSCC | Restricted Stock Unit (RSU) | Common Stock (3,855) | — | — | 3,855 | Disposed |
| May 9, 2022 | LSCC | Restricted Stock Unit (RSU) | Common Stock (4,033) | — | — | 4,033 | Acquired |
| March 16, 2022 | AMBA | Restricted Stock Units | Ordinary Shares (377) | — | Sept. 15, 2022 | 377 | Disposed |
| Dec. 16, 2021 | AMBA | Restricted Stock Units | Ordinary Shares (377) | — | Sept. 15, 2022 | 377 | Disposed |
| Dec. 9, 2021 | AMBA | Non-Qualified Stock Option (right to buy) | Ordinary Shares (6,666) | $31.25 | March 9, 2024 | 6,666 | Disposed |
| Dec. 9, 2021 | AMBA | Non-Qualified Stock Option (right to buy) | Ordinary Shares (1,389) | $38.92 | Sept. 7, 2024 | 1,389 | Disposed |
| Sept. 16, 2021 | AMBA | Restricted Stock Units | Ordinary Shares (959) | — | Sept. 15, 2021 | 959 | Disposed |
| Sept. 2, 2021 | AMBA | Restricted Stock Units | Ordinary Shares (1,508) | — | Sept. 15, 2022 | 1,508 | Acquired |
| June 16, 2021 | AMBA | Restricted Stock Units | Ordinary Shares (958) | — | Sept. 15, 2021 | 958 | Disposed |
| May 10, 2021 | LSCC | Restricted Stock Unit (RSU) | Common Stock (3,855) | — | — | 3,855 | Acquired |
| May 5, 2021 | LSCC | Restricted Stock Unit (RSU) | Common Stock (7,494) | — | — | 7,494 | Disposed |
| March 16, 2021 | AMBA | Restricted Stock Units | Ordinary Shares (958) | — | Sept. 15, 2021 | 958 | Disposed |
| Dec. 16, 2020 | AMBA | Restricted Stock Units | Ordinary Shares (958) | — | Sept. 15, 2021 | 958 | Disposed |
| Sept. 16, 2020 | AMBA | Restricted Stock Units | Ordinary Shares (858) | — | — | 858 | Disposed |
| Sept. 4, 2020 | AMBA | Restricted Stock Units | Ordinary Shares (3,833) | — | Sept. 15, 2021 | 3,833 | Acquired |
| Aug. 20, 2020 | LSCC | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $6.55 | Dec. 4, 2024 | 10,000 | Disposed |
| June 16, 2020 | AMBA | Restricted Stock Units | Ordinary Shares (858) | — | — | 858 | Disposed |
| May 6, 2020 | LSCC | Restricted Stock Unit (RSU) | Common Stock (8,795) | — | — | 8,795 | Disposed |
| May 5, 2020 | LSCC | Restricted Stock Unit (RSU) | Common Stock (7,494) | — | — | 7,494 | Acquired |
| March 17, 2020 | AMBA | Restricted Stock Units | Ordinary Shares (858) | — | Sept. 15, 2020 | 858 | Disposed |
| Dec. 17, 2019 | AMBA | Restricted Stock Units | Ordinary Shares (857) | — | Sept. 15, 2020 | 857 | Disposed |
| Sept. 17, 2019 | AMBA | Restricted Stock Units | Ordinary Shares (1,312) | — | Sept. 15, 2019 | 1,312 | Disposed |
| Sept. 3, 2019 | AMBA | Restricted Stock Units | Ordinary Shares (3,431) | — | Sept. 15, 2020 | 3,431 | Acquired |
| June 18, 2019 | AMBA | Restricted Stock Units | Ordinary Shares (1,312) | — | Sept. 15, 2019 | 1,312 | Disposed |
| May 7, 2019 | LSCC | Restricted Stock Unit (RSU) | Common Stock (22,263) | — | — | 22,263 | Disposed |
| May 6, 2019 | LSCC | Restricted Stock Unit (RSU) | Common Stock (8,795) | — | — | 8,795 | Acquired |
| March 19, 2019 | AMBA | Restricted Stock Units | Ordinary Shares (1,312) | — | Sept. 15, 2019 | 1,312 | Disposed |
| Dec. 18, 2018 | AMBA | Restricted Stock Units | Ordinary Shares (1,312) | — | Sept. 15, 2019 | 1,312 | Disposed |
| Sept. 18, 2018 | AMBA | Restricted Stock Units | Ordinary Shares (1,232) | — | Sept. 15, 2018 | 1,232 | Disposed |
| Sept. 4, 2018 | AMBA | Restricted Stock Units | Ordinary Shares (5,248) | — | Sept. 15, 2019 | 5,248 | Acquired |
| June 18, 2018 | AMBA | Restricted Stock Units | Ordinary Shares (1,231) | — | Sept. 15, 2018 | 1,231 | Disposed |
| June 1, 2018 | LSCC | Restricted Stock Unit (RSU) | Common Stock (17,291) | — | — | 17,291 | Disposed |
| May 7, 2018 | LSCC | Restricted Stock Unit (RSU) | Common Stock (22,263) | — | — | 22,263 | Acquired |
| March 16, 2018 | AMBA | Restricted Stock Units | Ordinary Shares (1,232) | — | Sept. 15, 2018 | 1,232 | Disposed |
| March 16, 2018 | AMBA | Restricted Stock Units | Ordinary Shares (417) | — | March 9, 2024 | 417 | Disposed |
| Dec. 18, 2017 | AMBA | Restricted Stock Units | Ordinary Shares (1,231) | — | Sept. 15, 2018 | 1,231 | Disposed |
| Dec. 18, 2017 | AMBA | Restricted Stock Units | Ordinary Shares (417) | — | March 9, 2024 | 417 | Disposed |
| Sept. 18, 2017 | AMBA | Restricted Stock Units | Ordinary Shares (726) | — | Sept. 15, 2017 | 726 | Disposed |
| Sept. 18, 2017 | AMBA | Restricted Stock Units | Ordinary Shares (417) | — | March 9, 2024 | 417 | Disposed |
| Sept. 5, 2017 | AMBA | Restricted Stock Units | Ordinary Shares (4,926) | — | Sept. 15, 2018 | 4,926 | Acquired |
| June 16, 2017 | AMBA | Restricted Stock Units | Ordinary Shares (726) | — | Sept. 15, 2017 | 726 | Disposed |
| June 16, 2017 | AMBA | Restricted Stock Units | Ordinary Shares (416) | — | March 9, 2024 | 416 | Disposed |
| June 1, 2017 | LSCC | Restricted Stock Unit (RSU) | Common Stock (17,291) | — | — | 17,291 | Acquired |
| May 13, 2017 | LSCC | Restricted Stock Unit (RSU) | Common Stock (22,727) | — | — | 22,727 | Disposed |
| March 16, 2017 | AMBA | Restricted Stock Units | Ordinary Shares (726) | — | Sept. 15, 2017 | 726 | Disposed |
| March 16, 2017 | AMBA | Restricted Stock Units | Ordinary Shares (417) | — | March 9, 2024 | 417 | Disposed |
| Dec. 16, 2016 | AMBA | Restricted Stock Units | Ordinary Shares (726) | — | Sept. 15, 2017 | 726 | Disposed |
| Dec. 16, 2016 | AMBA | Restricted Stock Units | Ordinary Shares (417) | — | March 9, 2024 | 417 | Disposed |
| Sept. 16, 2016 | AMBA | Restricted Stock Units | Ordinary Shares (1,153) | — | Sept. 15, 2016 | 1,153 | Disposed |
| Sept. 16, 2016 | AMBA | Restricted Stock Units | Ordinary Shares (416) | — | March 9, 2024 | 416 | Disposed |
| Sept. 6, 2016 | AMBA | Restricted Stock Units | Ordinary Shares (2,904) | — | Sept. 15, 2017 | 2,904 | Acquired |
| June 16, 2016 | AMBA | Restricted Stock Units | Ordinary Shares (1,153) | — | Sept. 15, 2016 | 1,153 | Disposed |
| June 16, 2016 | AMBA | Restricted Stock Units | Ordinary Shares (417) | — | March 9, 2024 | 417 | Disposed |
| May 13, 2016 | LSCC | Restricted Stock Unit (RSU) | Common Stock (22,727) | — | — | 22,727 | Acquired |
| May 7, 2016 | LSCC | Restricted Stock Unit (RSU) | Common Stock (8,052) | — | — | 8,052 | Disposed |
| March 16, 2016 | AMBA | Restricted Stock Units | Ordinary Shares (1,153) | — | Sept. 15, 2016 | 1,153 | Disposed |
| March 16, 2016 | AMBA | Restricted Stock Units | Ordinary Shares (417) | — | March 9, 2024 | 417 | Disposed |
| Dec. 16, 2015 | AMBA | Restricted Stock Units | Ordinary Shares (1,152) | — | Sept. 15, 2016 | 1,152 | Disposed |
| Dec. 16, 2015 | AMBA | Restricted Stock Units | Ordinary Shares (416) | — | March 9, 2024 | 416 | Disposed |
| Oct. 29, 2015 | AMBA | Restricted Stock Units | Ordinary Shares (4,611) | — | Sept. 15, 2016 | 4,611 | Acquired |
| Sept. 16, 2015 | AMBA | Restricted Stock Units | Ordinary Shares (417) | — | March 9, 2024 | 417 | Disposed |
| Sept. 16, 2015 | AMBA | Restricted Stock Units | Ordinary Shares (348) | — | Sept. 7, 2024 | 348 | Disposed |
| June 16, 2015 | AMBA | Restricted Stock Units | Ordinary Shares (417) | — | March 9, 2024 | 417 | Disposed |
| June 16, 2015 | AMBA | Restricted Stock Units | Ordinary Shares (347) | — | Sept. 7, 2024 | 347 | Disposed |
| May 7, 2015 | LSCC | Restricted Stock Unit (RSU) | Common Stock (8,052) | — | — | 8,052 | Acquired |
| March 17, 2015 | AMBA | Restricted Stock Units | Ordinary Shares (416) | — | March 9, 2024 | 416 | Disposed |
| March 17, 2015 | AMBA | Restricted Stock Units | Ordinary Shares (347) | — | Sept. 7, 2024 | 347 | Disposed |
| Dec. 16, 2014 | AMBA | Restricted Stock Units | Ordinary Shares (417) | — | March 9, 2024 | 417 | Disposed |
| Dec. 16, 2014 | AMBA | Restricted Stock Units | Ordinary Shares (347) | — | Sept. 7, 2024 | 347 | Disposed |
| Dec. 4, 2014 | LSCC | Non-Qualified Stock Option (right to buy) | Common Stock (53,918) | $6.55 | Dec. 4, 2024 | 53,918 | Acquired |
| Sept. 16, 2014 | AMBA | Restricted Stock Units | Ordinary Shares (417) | — | March 9, 2024 | 417 | Disposed |
| Sept. 8, 2014 | AMBA | Non-Qualified Stock Option (right to buy) | Ordinary Shares (2,778) | $38.92 | Sept. 7, 2024 | 2,778 | Acquired |
| Sept. 8, 2014 | AMBA | Restricted Stock Units | Ordinary Shares (1,389) | — | Sept. 7, 2024 | 1,389 | Acquired |
| June 16, 2014 | AMBA | Restricted Stock Units | Ordinary Shares (416) | — | March 9, 2024 | 416 | Disposed |
| March 10, 2014 | AMBA | Non-Qualified Stock Option (right to buy) | Ordinary Shares (13,333) | $31.25 | March 9, 2024 | 13,333 | Acquired |
| March 10, 2014 | AMBA | Restricted Stock Units | Ordinary Shares (6,667) | — | March 9, 2024 | 6,667 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).