Mark Partin
CIK 1688366 · CHIEF FINANCIAL OFFICER · last filed 2026-06-01
Mark Partin is a CHIEF FINANCIAL OFFICER who has filed 91 SEC Form 4 insider transactions across 3 companies since 2018. The most recent filing, for SPSC, was dated Jun 1, 2026. Across all open-market trades the lifetime net is −$39.7M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $7.6M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$7.58M
3
91
-$39.71M
Holdings By Company
Recent Filings
91 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-01 | SPSC | Grant (A) | +3,736 | $0 | EDGAR |
| 2026-05-08 | SUJA | Grant (A) | +4,761 | $0 | EDGAR |
| 2025-11-10 | SPSC | Grant (A) | +2,485 | $0 | EDGAR |
| 2025-05-07 | BL | Notice (144) | −10,000 | -$502.2K | EDGAR |
| 2025-05-05 | BL | Notice (144) | −30,000 | -$1.43M | EDGAR |
| 2025-05-02 | BL | Notice (144/A) | −23,090 | -$1.09M | EDGAR |
| 2025-05-02 | BL | Notice (144) | −23,090 | -$1.09M | EDGAR |
| 2025-05-01 | BL | Notice (144) | −30,000 | -$1.42M | EDGAR |
| 2025-04-30 | BL | Notice (144) | −40,000 | -$1.88M | EDGAR |
| 2025-04-25 | BL | Notice (144) | −56,760 | -$2.67M | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.