On this page
Robert J Park
Insider
First SEC filing: Oct. 17, 2024 · Latest: Oct. 17, 2024
Insider at
Insider transactions
0 buys (P)
2 sells (S)
Net: $-277,440
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 |
|---|---|---|---|---|---|---|---|---|---|
| May 12, 2026 | DLB | S | 391 | $57.35 | $22,424 | 81,490 Direct | -0.48% | Disposed | 2.8% (price as of 2026-10-05) |
| May 12, 2026 | DLB | S | 4,504 | $56.62 | $255,016 | 81,881 Direct | -5.21% | Disposed | 4.1% (price as of 2026-10-05) |
| Dec. 16, 2025 | DLB | F | 2,285 | $66.62 | $152,227 | 86,385 Direct | -2.58% | Disposed | -11.5% (price as of 2026-10-05) |
| Dec. 15, 2025 | DLB | M | 5,687 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Dec. 15, 2025 | DLB | A | 51,460 | · | · | 51,460 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 15, 2025 | DLB | A | 11,685 | · | · | 11,685 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 15, 2025 | DLB | F | 6,473 | $67.54 | $437,186 | 88,670 Direct | -6.80% | Disposed | -12.7% (price as of 2026-10-05) |
| Dec. 15, 2025 | DLB | M | 5,687 | · | · | 95,143 Direct | +6.36% | Acquired | (price as of 2026-10-05) |
| Dec. 15, 2025 | DLB | A | 23,371 | · | · | 89,456 Direct | +35.37% | Acquired | (price as of 2026-10-05) |
| Dec. 16, 2024 | DLB | A | 31,890 | · | · | 31,890 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 16, 2024 | DLB | A | 9,070 | · | · | 9,070 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 16, 2024 | DLB | F | 3,725 | $79.18 | $294,946 | 69,287 Direct | -5.10% | Disposed | -25.6% (price as of 2026-10-05) |
| Dec. 16, 2024 | DLB | A | 18,141 | · | · | 73,012 Direct | +33.06% | Acquired | (price as of 2026-10-05) |
| Oct. 15, 2024 | DLB | F | 3,552 | $69.11 | $245,479 | 66,085 Direct | -5.10% | Disposed | -14.7% (price as of 2026-10-05) |
| Oct. 15, 2024 | DLB | F | 3,552 | $74.36 | $264,127 | 54,871 Direct | -6.08% | Disposed | -20.7% (price as of 2026-10-05) |
| Dec. 15, 2023 | DLB | A | 26,283 | · | · | 26,283 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 15, 2023 | DLB | A | 7,497 | · | · | 7,497 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 15, 2023 | DLB | F | 1,887 | $88.60 | $167,188 | 58,138 Direct | -3.14% | Disposed | -33.5% (price as of 2026-10-05) |
| Dec. 15, 2023 | DLB | A | 14,995 | · | · | 60,025 Direct | +33.30% | Acquired | (price as of 2026-10-05) |
| Oct. 16, 2023 | DLB | F | 3,485 | $80.44 | $280,333 | 44,937 Direct | -7.20% | Disposed | -26.7% (price as of 2026-10-05) |
| Dec. 15, 2022 | DLB | A | 31,677 | · | · | 31,677 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 15, 2022 | DLB | A | 8,797 | · | · | 8,797 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 15, 2022 | DLB | A | 17,595 | · | · | 48,016 Direct | +57.84% | Acquired | (price as of 2026-10-05) |
| Oct. 17, 2022 | DLB | F | 3,485 | $64.28 | $224,016 | 30,224 Direct | -10.34% | Disposed | -8.3% (price as of 2026-10-05) |
| Oct. 15, 2021 | DLB | A | 49,886 | · | · | 49,886 Direct | · | Acquired | (price as of 2026-10-05) |
| Oct. 15, 2021 | DLB | A | 33,523 | · | · | 33,523 Direct | · | Acquired | (price as of 2026-10-05) |
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. 15, 2025 | DLB | Performance-Based Restricted Stock Unit | Class A Common Stock | · | · | 5,687 | Disposed |
| Dec. 15, 2025 | DLB | Employee Stock Option (Right to Buy) | Class A Common Stock | $66.62 | Dec. 15, 2035 | 51,460 | Acquired |
| Dec. 15, 2025 | DLB | Performance-Based Restricted Stock Unit | Class A Common Stock | · | · | 11,685 | Acquired |
| Dec. 16, 2024 | DLB | Employee Stock Option (Right to Buy) | Class A Common Stock | $77.91 | Dec. 16, 2034 | 31,890 | Acquired |
| Dec. 16, 2024 | DLB | Performance-Based Restricted Stock Unit | Class A Common Stock | · | · | 9,070 | Acquired |
| Dec. 15, 2023 | DLB | Employee Stock Option (Right to Buy) | Class A Common Stock | $87.49 | Dec. 15, 2033 | 26,283 | Acquired |
| Dec. 15, 2023 | DLB | Performance-Based Restricted Stock Unit | Class A Common Stock | · | · | 7,497 | Acquired |
| Dec. 15, 2022 | DLB | Employee Stock Option (Right to Buy) | Class A Common Stock | $71.07 | Dec. 15, 2032 | 31,677 | Acquired |
| Dec. 15, 2022 | DLB | Performance-Based Restricted Stock Unit | Class A Common Stock | · | · | 8,797 | Acquired |
| Oct. 15, 2021 | DLB | Employee Stock Option (right to buy) | Class A Common Stock | $91.73 | Oct. 15, 2031 | 49,886 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).