Lewis Chew
CIK 1224994 · View on SEC EDGAR ↗
Insider
First SEC filing: June 2, 2026 · Latest: June 2, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 72 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
72 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 17, 2021 | DLB | S | 7,430 | $99.20 | $737,056 | 105,598 Direct | -6.57% | Disposed | -36.3% (price as of 2026-08-20) |
| Aug. 17, 2021 | DLB | S | 14,870 | $99.65 | $1,481,796 | 113,028 Direct | -11.63% | Disposed | -36.6% (price as of 2026-08-20) |
| Aug. 17, 2021 | DLB | S | 4,900 | $100.82 | $494,018 | 127,898 Direct | -3.69% | Disposed | -37.3% (price as of 2026-08-20) |
| Aug. 17, 2021 | DLB | S | 2,800 | $101.68 | $284,704 | 132,798 Direct | -2.06% | Disposed | -37.8% (price as of 2026-08-20) |
| Aug. 6, 2021 | DLB | S | 2,400 | $98.87 | $237,288 | 105,598 Direct | -2.22% | Disposed | -36.1% (price as of 2026-08-20) |
| Aug. 6, 2021 | DLB | S | 12,600 | $98.26 | $1,238,076 | 107,998 Direct | -10.45% | Disposed | -35.7% (price as of 2026-08-20) |
| Aug. 5, 2021 | DLB | S | 9,302 | $97.86 | $910,294 | 105,598 Direct | -8.10% | Disposed | -35.4% (price as of 2026-08-20) |
| Aug. 5, 2021 | DLB | S | 20,698 | $97.38 | $2,015,571 | 114,900 Direct | -15.26% | Disposed | -35.1% (price as of 2026-08-20) |
| Aug. 4, 2021 | DLB | S | 20,000 | $97.29 | $1,945,800 | 105,598 Direct | -15.92% | Disposed | -35.0% (price as of 2026-08-20) |
| Aug. 4, 2021 | DLB | S | 10,000 | $97.99 | $979,900 | 105,598 Direct | -8.65% | Disposed | -35.5% (price as of 2026-08-20) |
| Aug. 3, 2021 | DLB | S | 20,000 | $99.54 | $1,990,800 | 105,598 Direct | -15.92% | Disposed | -36.5% (price as of 2026-08-20) |
| May 20, 2021 | DLB | S | 30,918 | $96.67 | $2,988,843 | 105,598 Direct | -22.65% | Disposed | -34.6% (price as of 2026-08-20) |
| Feb. 2, 2021 | DLB | S | 30,000 | $90.82 | $2,724,600 | 105,598 Direct | -22.12% | Disposed | -30.4% (price as of 2026-08-20) |
| Nov. 17, 2020 | DLB | S | 23,652 | $89.45 | $2,115,671 | 98,047 Direct | -19.43% | Disposed | -29.3% (price as of 2026-08-20) |
| Nov. 17, 2020 | DLB | S | 7,000 | $89.11 | $623,770 | 98,047 Direct | -6.66% | Disposed | -29.1% (price as of 2026-08-20) |
| Aug. 5, 2020 | DLB | S | 36,500 | $69.79 | $2,547,335 | 98,047 Direct | -27.13% | Disposed | -9.4% (price as of 2026-08-20) |
| May 13, 2020 | DLB | S | 10,000 | $54.79 | $547,900 | 98,047 Direct | -9.26% | Disposed | 15.4% (price as of 2026-08-20) |
| Feb. 7, 2020 | DLB | S | 33,500 | $71.04 | $2,379,840 | 98,047 Direct | -25.47% | Disposed | -11.0% (price as of 2026-08-20) |
| Feb. 7, 2020 | DLB | S | 4,400 | $70.80 | $311,520 | 98,047 Direct | -4.29% | Disposed | -10.7% (price as of 2026-08-20) |
| Nov. 25, 2019 | DLB | S | 2,185 | $69.06 | $150,896 | 91,946 Direct | -2.32% | Disposed | -8.5% (price as of 2026-08-20) |
| Nov. 25, 2019 | DLB | S | 30,000 | $69.22 | $2,076,600 | 91,946 Direct | -24.60% | Disposed | -8.7% (price as of 2026-08-20) |
| Aug. 20, 2019 | DLB | S | 15,000 | $60.33 | $904,950 | 91,946 Direct | -14.03% | Disposed | 4.8% (price as of 2026-08-20) |
| May 9, 2019 | DLB | S | 8,800 | $62.64 | $551,232 | 91,946 Direct | -8.73% | Disposed | 0.9% (price as of 2026-08-20) |
| May 9, 2019 | DLB | S | 26,200 | $63.67 | $1,668,154 | 100,746 Direct | -20.64% | Disposed | -0.7% (price as of 2026-08-20) |
| Feb. 8, 2019 | DLB | S | 35,000 | $63.28 | $2,214,800 | 91,946 Direct | -27.57% | Disposed | -0.1% (price as of 2026-08-20) |
| Nov. 2, 2018 | DLB | S | 700 | $69.32 | $48,524 | 86,370 Direct | -0.80% | Disposed | -8.8% (price as of 2026-08-20) |
| Nov. 2, 2018 | DLB | S | 16,214 | $68.78 | $1,115,199 | 87,070 Direct | -15.70% | Disposed | -8.1% (price as of 2026-08-20) |
| Nov. 1, 2018 | DLB | S | 18,086 | $70.03 | $1,266,563 | 86,370 Direct | -17.31% | Disposed | -9.7% (price as of 2026-08-20) |
Showing latest 100 of 172 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 |
|---|---|---|---|---|---|---|---|
| April 30, 2026 | ISRG | Restricted Stock Units - 4-30-2026 | Common Stock (554) | $0.00 | — | 554 | Acquired |
| April 30, 2026 | ISRG | Restricted Stock Units | Common Stock (531) | $0.00 | — | 531 | Disposed |
| May 1, 2025 | ISRG | Restricted Stock Units | Common Stock (531) | $0.00 | — | 531 | Acquired |
| April 25, 2025 | ISRG | Restricted Stock Units | Common Stock (739) | $0.00 | — | 739 | Disposed |
| April 25, 2024 | ISRG | Restricted Stock Units | Common Stock (739) | $0.00 | — | 739 | Acquired |
| Aug. 17, 2021 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (30,000) | $33.15 | Dec. 15, 2022 | 30,000 | Disposed |
| Aug. 6, 2021 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (15,000) | $33.15 | Dec. 15, 2025 | 15,000 | Disposed |
| Aug. 5, 2021 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (30,000) | $33.15 | Dec. 15, 2025 | 30,000 | Disposed |
| Aug. 4, 2021 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (20,000) | $33.15 | Dec. 15, 2025 | 20,000 | Disposed |
| Aug. 4, 2021 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (10,000) | $42.98 | Dec. 15, 2024 | 10,000 | Disposed |
| Aug. 3, 2021 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (20,000) | $42.98 | Dec. 15, 2024 | 20,000 | Disposed |
| May 20, 2021 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (30,918) | $42.98 | Dec. 15, 2024 | 30,918 | Disposed |
| Feb. 2, 2021 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (30,000) | $42.98 | Dec. 15, 2024 | 30,000 | Disposed |
| Dec. 15, 2020 | DLB | Employee Stock Option (Right to Buy) | Class A Common Stock (30,553) | $92.08 | Dec. 15, 2030 | 30,553 | Acquired |
| Dec. 15, 2020 | DLB | Performance-Based Restricted Stock Unit | Class A Common Stock (7,136) | — | — | 7,136 | Acquired |
| Nov. 17, 2020 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (23,652) | $37.35 | Dec. 16, 2023 | 23,652 | Disposed |
| Nov. 17, 2020 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (7,000) | $42.98 | Dec. 15, 2024 | 7,000 | Disposed |
| Aug. 5, 2020 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (36,500) | $37.35 | Dec. 16, 2023 | 36,500 | Disposed |
| May 13, 2020 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (10,000) | $37.35 | Dec. 16, 2023 | 10,000 | Disposed |
| Feb. 7, 2020 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (33,500) | $37.35 | Dec. 16, 2023 | 33,500 | Disposed |
| Feb. 7, 2020 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (4,400) | $30.49 | Dec. 21, 2022 | 4,400 | Disposed |
| Dec. 16, 2019 | DLB | Employee Stock Option (Right to Buy) | Class A Common Stock (60,000) | $68.40 | Dec. 16, 2029 | 60,000 | Acquired |
| Dec. 16, 2019 | DLB | Performance-Based Restricted Stock Unit | Class A Common Stock (6,600) | — | — | 6,600 | Acquired |
| Nov. 25, 2019 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (2,185) | $37.96 | June 15, 2022 | 2,185 | Disposed |
| Nov. 25, 2019 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (30,000) | $30.49 | Dec. 21, 2022 | 30,000 | Disposed |
| Aug. 20, 2019 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (15,000) | $30.49 | Dec. 21, 2022 | 15,000 | Disposed |
| May 9, 2019 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (35,000) | $37.96 | June 15, 2022 | 35,000 | Disposed |
| Feb. 8, 2019 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (35,000) | $37.96 | June 15, 2022 | 35,000 | Disposed |
| Dec. 17, 2018 | DLB | Employee Stock Option (Right to Buy) | Class A Common Stock (52,000) | $64.60 | Dec. 17, 2028 | 52,000 | Acquired |
| Dec. 17, 2018 | DLB | Performance-Based Stock Option (Right to Buy) | Class A Common Stock (26,000) | $64.60 | Dec. 17, 2025 | 26,000 | Acquired |
| Nov. 2, 2018 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (16,914) | $37.96 | June 15, 2022 | 16,914 | Disposed |
| Nov. 1, 2018 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (18,086) | $37.96 | June 15, 2022 | 18,086 | Disposed |
| Aug. 7, 2018 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (17,000) | $37.96 | June 15, 2022 | 17,000 | Disposed |
| May 17, 2018 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (17,000) | $37.96 | June 15, 2022 | 17,000 | Disposed |
| Feb. 27, 2018 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (17,000) | $37.96 | June 15, 2022 | 17,000 | Disposed |
| Dec. 15, 2017 | DLB | Employee Stock Option (Right to Buy) | Class A Common Stock (56,000) | $62.32 | Dec. 15, 2027 | 56,000 | Acquired |
| Dec. 15, 2017 | DLB | Performance-Based Stock Option (Right to Buy) | Class A Common Stock (28,000) | $62.32 | Dec. 15, 2024 | 28,000 | Acquired |
| Nov. 10, 2017 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (17,000) | $37.96 | June 15, 2022 | 17,000 | Disposed |
| May 17, 2017 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (14,300) | $30.49 | Dec. 21, 2022 | 14,300 | Disposed |
| Dec. 15, 2016 | DLB | Employee Stock Option (Right to Buy) | Class A Common Stock (56,000) | $45.50 | Dec. 15, 2026 | 56,000 | Acquired |
| Dec. 15, 2016 | DLB | Performance-Based Stock Option (Right to Buy) | Class A Common Stock (28,000) | $45.50 | Dec. 15, 2023 | 28,000 | Acquired |
| Nov. 21, 2016 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (15,000) | $30.49 | Dec. 21, 2022 | 15,000 | Disposed |
| Aug. 29, 2016 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (12,000) | $37.96 | June 15, 2022 | 12,000 | Disposed |
| May 13, 2016 | DLB | Employee Stock Option (right to buy) | Class A Common Stock (20,000) | $30.49 | Dec. 21, 2022 | 20,000 | Disposed |
| Dec. 15, 2015 | DLB | Employee Stock Option (Right to Buy) | Class A Common Stock (65,000) | $33.15 | Dec. 15, 2025 | 65,000 | Acquired |
| Dec. 15, 2015 | DLB | Performance-Based Stock Option (Right to Buy) | Class A Common Stock (32,500) | $33.15 | Dec. 15, 2022 | 32,500 | Acquired |
| Dec. 15, 2014 | DLB | Employee Stock Option (Right to Buy) | Class A Common Stock (97,918) | — | Dec. 15, 2024 | 97,918 | Acquired |
| Dec. 15, 2014 | DLB | Employee Stock Option (Right to Buy) | Class A Common Stock (97,918) | $44.14 | Dec. 15, 2024 | 97,918 | Acquired |
| Dec. 16, 2013 | DLB | Employee Stock Option (Right to Buy) | Class A Common Stock (103,652) | $37.35 | Dec. 16, 2023 | 103,652 | Acquired |
| Dec. 21, 2012 | DLB | Employee Stock Option (Right to Buy) | Class A Common Stock (98,700) | $30.49 | Dec. 21, 2022 | 98,700 | Acquired |
| June 15, 2012 | DLB | Employee Stock Option (Right to Buy) | Class A Common Stock (168,075) | $42.27 | June 15, 2022 | 168,075 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.