Transactions
10
Insider / Dolby Laboratories, Inc.
Park Robert J
SVP & Chief Financial Officer at Dolby Laboratories, Inc.
- Company
- Dolby Laboratories, Inc.
- Ticker
- DLB
- First filing on record
- October 16, 2025
- Latest trade on record
- May 12, 2026
- SEC filings
- EDGAR ↗
Park Robert J, SVP & Chief Financial Officer at Dolby Laboratories, Inc., has disclosed 10 transactions in DLB since October 16, 2025: 0 purchases (0 open-market buys) and 5 sales, worth about $1.1M at the reported prices. The latest was filed May 14, 2026, 2 days after the trade; 1 filing was late against the 2-business-day Form 4 deadline.
Open-market buys
0
Sales
5
Avg. disclosure lag
38.3d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months Park Robert J made no purchases and 4 sales worth $867K, plus 5 other transactions. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
Park Robert J has traded 1 stock on record; the largest by dollars is DLB.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
1 of 3 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| A | Grant or award | 3 | 86,516 | — |
| F | Shares withheld for tax | 3 | 12,310 | $835K |
| M | Option exercise or conversion | 2 | 11,374 | — |
| S | Open-market sale | 2 | 4,895 | $277K |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 2 | 0 | 2 · $277K |
| 2025 | 7 | 0 | 2 · $589K |
| 2024 | 1 | 0 | 1 · $245K |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| DLB | Sell S | May 12, 2026 | May 14, 2026 | 2d | 391 | $57 | $22K | 10b5-1 plan | Form 4 ↗ | |
| DLB | Sell S | May 12, 2026 | May 14, 2026 | 2d | 4,504 | $57 | $255K | 10b5-1 plan | Form 4 ↗ | |
| DLB | Option / conversion M | December 15, 2025 | December 17, 2025 | 2d | 5,687 | — | — | derivative | Form 4 ↗ | |
| DLB | Other A | December 15, 2025 | December 17, 2025 | 2d | 51,460 | — | — | derivative | Form 4 ↗ | |
| DLB | Other A | December 15, 2025 | December 17, 2025 | 2d | 11,685 | — | — | derivative | Form 4 ↗ | |
| DLB | Sell F | December 16, 2025 | December 17, 2025 | 1d | 2,285 | $67 | $152K | Form 4 ↗ | ||
| DLB | Sell F | December 15, 2025 | December 17, 2025 | 2d | 6,473 | $68 | $437K | Form 4 ↗ | ||
| DLB | Option / conversion M | December 15, 2025 | December 17, 2025 | 2d | 5,687 | — | — | Form 4 ↗ | ||
| DLB | Other A | December 15, 2025 | December 17, 2025 | 2d | 23,371 | — | — | Form 4 ↗ | ||
| DLB | Sell F | October 15, 2024 | October 16, 2025 | 366d | 3,552 | $69 | $245K | late | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| May 14, 2026 | Form 4 | 0001193125-26-224607 | 2 | published | EDGAR ↗ |
| December 17, 2025 | Form 4 | 0001193125-25-323422 | 7 | published | EDGAR ↗ |
| October 16, 2025 | Form 4 | 0001193125-25-241734 | 1 | published | EDGAR ↗ |
Other insiders at Dolby Laboratories, Inc.
- Couling John D SVP, Entertainment 34 rows
- YEAMAN KEVIN J President and CEO 29 rows
- Dolby Dagmar Insider 16 rows
- SHERMAN MARK ANDREW EVP, Gen. Counsel & Secretary 14 rows
- Revankar Shriram SVP, Advanced Technology Group 12 rows
- Nicholson Ryan VP, CAO and Corp. Controller 9 rows
- Pendleton Todd SVP, Chief Marketing Officer 8 rows
- Sud Anjali Director 6 rows
- Prophet Tony A Director 2 rows
- Rollins Emily Director 2 rows
Everyone on file, with contracts and lobbying under the company's name: Dolby Laboratories, Inc..
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Rule 10b5-1 trading plans The plan must be set up when the insider has no important non-public information.
- Options and derivatives on Form 4 Table I = shares. Table II = options and other derivatives.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 3 | 10 | October 16, 2025 | May 14, 2026 | Form 4 list on EDGAR |
Site built October 22, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.