Brian C White
CIK 1438029 · View on SEC EDGAR ↗
Insider
First SEC filing: March 29, 2019 · Latest: March 29, 2019
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 41 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
41 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 19, 2023 | AMBA | S | 3,357 | $63.04 | $211,625 | 74,140 Direct | -4.33% | Disposed | 16.1% (price as of 2026-08-19) |
| Sept. 18, 2023 | AMBA | S | 3,274 | $57.30 | $187,600 | 77,497 Direct | -4.05% | Disposed | 27.7% (price as of 2026-08-19) |
| June 20, 2023 | AMBA | S | 3,297 | $84.80 | $279,586 | 80,771 Direct | -3.92% | Disposed | -13.7% (price as of 2026-08-19) |
| March 17, 2023 | AMBA | S | 10,554 | $76.85 | $811,075 | 10,390 Direct | -50.39% | Disposed | -4.8% (price as of 2026-08-19) |
| March 9, 2023 | AMBA | S | 1,224 | $82.25 | $100,674 | 944 Direct | -56.46% | Disposed | -11.0% (price as of 2026-08-19) |
| May 15, 2018 | 703361 | S | 27,801 | $30.80 | $856,271 | 112,643 | — | — | |
| Jan. 22, 2018 | 703361 | S | 23,297 | $34.00 | $792,098 | 107,975 | — | — | |
| Jan. 19, 2018 | 703361 | S | 29,250 | $33.50 | $979,875 | 107,975 | — | — | |
| Jan. 19, 2018 | 703361 | S | 15,583 | $33.00 | $514,239 | 107,975 | — | — | |
| Jan. 4, 2018 | 703361 | S | 8,417 | $32.50 | $273,558 | 107,975 | — | — | |
| June 15, 2017 | 703361 | S | 37,418 | $24.36 | $911,375 | 101,422 | — | — | |
| May 15, 2017 | 703361 | S | 19,054 | $24.04 | $457,965 | 124,004 | — | — | |
| Feb. 15, 2017 | 703361 | S | 20,913 | $25.21 | $527,215 | 115,591 | — | — | |
| June 15, 2016 | 703361 | S | 16,095 | $22.84 | $367,529 | 114,503 | — | — | |
| May 16, 2016 | 703361 | S | 4,510 | $21.08 | $95,071 | 70,598 | — | — | |
| Dec. 15, 2015 | 703361 | S | 1,028 | $27.65 | $28,421 | 40,253 | — | — | |
| June 15, 2015 | 703361 | S | 1,250 | $23.74 | $29,674 | 33,781 | — | — | |
| May 15, 2015 | 703361 | S | 3,750 | $21.85 | $81,951 | 19,600 | — | — | |
| May 13, 2015 | 703361 | S | 10,000 | $22.00 | $220,002 | 28,950 | — | — | |
| March 17, 2015 | 703361 | S | 1,250 | $20.38 | $25,475 | 28,950 | — | — | |
| Feb. 12, 2015 | 703361 | S | 679 | $21.02 | $14,274 | 28,950 | — | — |
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 |
|---|---|---|---|---|---|---|---|
| Aug. 5, 2026 | ALGM | Deferred Stock Units | Common Stock (4,251) | — | — | 4,251 | Acquired |
| April 3, 2023 | AMBA | Performance Stock Units | Ordinary Shares (13,678) | — | March 15, 2026 | 13,678 | Acquired |
| March 15, 2023 | AMBA | Restricted Stock Units | Ordinary Shares (20,000) | — | March 15, 2026 | 20,000 | Disposed |
| March 2, 2023 | AMBA | Restricted Stock Units | Ordinary Shares (13,678) | — | — | 13,678 | Acquired |
| Sept. 26, 2022 | FORM | Restricted Stock Units | Common Stock (4,520) | — | — | 4,520 | 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 |
|---|---|---|---|---|
| April 8, 2022 | AMBA | Restricted Stock Units→ Ordinary Shares (80,000) | 80,000 | Direct |