David Jeffrey Richardson

CIK 1329724 · View on SEC EDGAR ↗

Insider

First SEC filing: April 3, 2025 · Latest: April 3, 2025

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Insider transactions

0 buys (P) 1 sells (S) Net: $-675,987 + 94 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

94 other filings hidden
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).