Updated Jul 16, 2026
Stamm John Richard has filed 1 SEC Form 4 filing across 1 company in the last 90 days — selling. Lifetime open-market sales: $349K.

| Role | Insider |
|---|---|
| Notability | 20/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-12 | VERX | Vertex, Inc. | A — Grant or award | 15.6K | $0.00 | |
| 2024-12-10 | VERX | Vertex, Inc. | S — Open-market sale | 3.8K | $56.11 | $214K |
| 2024-11-27 | VERX | Vertex, Inc. | S — Open-market sale | 2.5K | $53.81 | $135K |
| 2024-11-27 | VERX | Vertex, Inc. | M — Option exercise | 2.5K | $3.73 | $9K |
| 2024-11-27 | VERX | Vertex, Inc. | G — Bona-fide gift | 1.1K | $0.00 |
Stamm John Richard is a corporate insider — currently tracked as Insider of Vertex, Inc. (VERX). InsiderAlpha tracks every SEC Form 4 filing in real time.
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 2 open-market sales ($349K) across all tracked 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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