Summary
Updated Aug 31, 2026
Mark Partin is Director of SPS COMMERCE INC (SPSC). 5 SEC Form 4 filings on record going back to 2024, most recently on 1 June 2026. Most recent open-market trade: sold $160K of BL on 1 October 2024. Lifetime open-market sales: $4.68M.
Recent Transactions
12Every recent SEC Form 4 transaction Mark Partin has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Mark Partin go back to 2024: 5 primary Form 4 filings, an average of 1.7 per year. 7 recorded transactions carry a Rule 10b5-1 flag, meaning they were 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 Mark Partin 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.
- PAINE SCHWARTZ FOOD CHAIN FUND V GP, LTD. - $20.51M of SUJA open-market activity in the last 12 months
- Therese Tucker - $2.24M of BL open-market activity in the last 12 months
- Chadwick Collins - $785K of SPSC open-market activity in the last 12 months
- Thomas Unterman - $451K of BL open-market activity in the last 12 months
- Kimberly K. Nelson - $370K of SPSC open-market activity in the last 12 months
- Marty M. Reaume - $258K of SPSC 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 Mark Partin?
Mark Partin is a corporate insider, tracked as Director of SPS COMMERCE INC (SPSC). InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Mark Partin last file a Form 4?
The most recent primary Form 4 on record is dated 1 June 2026, one of 5 filings going back to 2024.
Has Mark Partin been buying or selling stock?
Recorded transactions: 0 open-market purchases and 3 open-market sales ($4.68M) across all tracked filings.
Where can I see all of Mark Partin'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.
Learn More
Follow Mark Partin and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial