Summary
Updated Aug 30, 2026
Dagmar Dolby is 10% Owner of Dolby Laboratories, Inc. (DLB). 4 SEC Form 4 filings on record going back to 2024, most recently on 28 August 2026.
Recent Transactions
8Every recent SEC Form 4 transaction Dagmar Dolby has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Dagmar Dolby files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Kevin J. Yeaman - $10.51M of DLB open-market activity in the last 12 months
- John D. Couling - $2.85M of DLB open-market activity in the last 12 months
- Mark Andrew Sherman - $1.08M of DLB open-market activity in the last 12 months
- Shriram Revankar - $748K of DLB open-market activity in the last 12 months
- Todd Pendleton - $648K of DLB open-market activity in the last 12 months
- Ryan Nicholson - $360K of DLB open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Dagmar Dolby?
Dagmar Dolby is a corporate insider, tracked as 10% Owner of Dolby Laboratories, Inc. (DLB). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Dagmar Dolby submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Where can I see all of Dagmar Dolby's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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