Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Douglas Brinkworth 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.
- Matthew J. Chanin - $193K of SPH 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 Douglas Brinkworth?
Douglas Brinkworth is a corporate insider, tracked as SVP- Prod.Sup,Purch.&Logistics of SUBURBAN PROPANE PARTNERS LP (SPH). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Douglas Brinkworth last file a Form 4?
The most recent primary Form 4 on record is dated 18 November 2025, one of 3 filings going back to 2024.
Has Douglas Brinkworth been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($116K) across all tracked filings.
Where can I see all of Douglas Brinkworth'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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