David DeStefano is CEO & President at Vertex, Inc. (VERX). They have made 13 open-market trades across 1 company since 2020, most recently 2026-06-10.
CIK 0001818526
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 13 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| VERX | 1,271,155 | $17.0M |
Shares reported on the most recent Form 4, priced at the 2026-06-12 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| VERX | SELL | 2026-05-28 | 2026-06-01 | $12.75 | $82K | -14.8% | -11.9% | -0.3% |
| VERX | SELL | 2025-05-12 | 2025-05-14 | $37.41 | $35.4M | +2.1% | -4.6% | -35.1% |
| VERX | SELL | 2024-12-10 | 2024-12-12 | $55.04 | $41.9M | -2.5% | -4.4% | -38.0% |
| VERX | SELL | 2024-12-06 | 2024-12-10 | $56.09 | $1.0M | -3.1% | -5.6% | -43.6% |
| VERX | SELL | 2024-11-26 | 2024-11-27 | $55.05 | $2.8M | +0.5% | -3.0% | -21.8% |
| VERX | SELL | 2024-11-14 | 2024-11-18 | $49.60 | $19.7M | +12.5% | +10.0% | -1.3% |
| VERX | SELL | 2024-03-08 | 2024-03-12 | $30.09 | $838K | -0.0% | +7.9% | +14.2% |
| VERX | SELL | 2023-12-15 | 2023-12-19 | $27.16 | $1.1M | -1.6% | -7.4% | +9.4% |
| VERX | SELL · 10b5-1 | 2023-06-15 | 2023-06-20 | $20.43 | $4.1M | -3.2% | -4.6% | +5.2% |
| VERX | SELL | 2022-12-12 | 2022-12-14 | $16.23 | $1.1M | -6.6% | -20.3% | +19.0% |
| VERX | SELL | 2022-10-10 | 2022-10-11 | $14.56 | $515K | +13.9% | +27.8% | -10.7% |
| VERX | SELL | 2022-09-28 | 2022-09-30 | $13.64 | $1.9M | +4.3% | +29.2% | +6.5% |
| VERX | SELL | 2022-09-15 | 2022-09-19 | $14.10 | $3.8M | +1.1% | +16.0% | +10.8% |
| VERX | SELL | 2020-07-31 | 2020-07-31 | $17.77 | $5.7M | +2.7% | +8.6% | +3.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.