Summary
Updated Aug 31, 2026
Tony A. Prophet files SEC Form 4 reports at Dolby Laboratories, Inc. (DLB). 2 SEC Form 4 filings on record going back to 2025, most recently on 6 February 2026. Most recent open-market trade: sold $224K of DLB on 26 November 2025. Lifetime open-market sales: $224K.
Recent Transactions
2Every recent SEC Form 4 transaction Tony A. Prophet has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Tony A. Prophet go back to 2025: 2 primary Form 4 filings, an average of 1.0 per year. 1 recorded transaction carries a Rule 10b5-1 flag, meaning it was pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Tony A. Prophet 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 Tony A. Prophet?
Tony A. Prophet is a corporate insider of Dolby Laboratories, Inc. (DLB). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Tony A. Prophet last file a Form 4?
The most recent primary Form 4 on record is dated 6 February 2026, one of 2 filings going back to 2025.
Has Tony A. Prophet been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($224K) across all tracked filings.
Where can I see all of Tony A. Prophet'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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