DeStefano David, President and CEO of Vertex, Inc. ($VERX), sold about 17.7 million dollars worth of shares in five open market transactions over the last year. His most recent sale occurred on May 13, 2025. These sales rank 739th among 11,678 individual insiders, outperforming the average of 8.6 million dollars per seller and 6.4 transactions. DeStefano David made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 24, 2026 | Vertex, Inc. | $VERX | DeStefano David | Not found | F | Class A Common Stock | 51983 | $13.26 | 1,459,549.0000 | 26,359,623 | 3.44% | 0.20% |
| Feb. 24, 2026 | Vertex, Inc. | $VERX | DeStefano David | Not found | M | Class A Common Stock | 109233 | $0.00 | 1,511,532.0000 | 26,359,623 | 7.79% | 0.41% |
| Feb. 24, 2026 | Vertex, Inc. | $VERX | DeStefano David | Not found | M | Restricted Stock Units | 109233 | $0.00 | 0.0000 | 26,359,623 | 100.00% | 0.41% |
| Feb. 23, 2026 | Vertex, Inc. | $VERX | DeStefano David | Not found | F | Class A Common Stock | 47112 | $12.03 | 1,402,299.0000 | 26,359,623 | 3.25% | 0.18% |
| Feb. 23, 2026 | Vertex, Inc. | $VERX | DeStefano David | Not found | M | Class A Common Stock | 101395 | $0.00 | 1,449,411.0000 | 26,359,623 | 7.52% | 0.38% |
| Feb. 23, 2026 | Vertex, Inc. | $VERX | DeStefano David | Not found | M | Restricted Stock Units | 101395 | $0.00 | 101,396.0000 | 26,359,623 | 50.00% | 0.38% |
| Feb. 20, 2026 | Vertex, Inc. | $VERX | DeStefano David | Not found | M | Restricted Stock Units | 69527 | $0.00 | 139,055.0000 | 26,359,623 | 33.33% | 0.26% |
| Feb. 20, 2026 | Vertex, Inc. | $VERX | DeStefano David | Not found | F | Class A Common Stock | 12523 | $12.74 | 1,348,016.0000 | 26,359,623 | 0.92% | 0.05% |
| Feb. 20, 2026 | Vertex, Inc. | $VERX | DeStefano David | Not found | M | Class A Common Stock | 44014 | $0.00 | 1,360,539.0000 | 26,359,623 | 3.34% | 0.17% |
| Feb. 20, 2026 | Vertex, Inc. | $VERX | DeStefano David | Not found | F | Class A Common Stock | 23705 | $12.74 | 1,316,525.0000 | 26,359,623 | 1.77% | 0.09% |
| Feb. 20, 2026 | Vertex, Inc. | $VERX | DeStefano David | Not found | M | Class A Common Stock | 69527 | $0.00 | 1,340,230.0000 | 26,359,623 | 5.47% | 0.26% |
| Feb. 20, 2026 | Vertex, Inc. | $VERX | DeStefano David | Not found | M | Restricted Stock Units | 44014 | $0.00 | 132,043.0000 | 26,359,623 | 25.00% | 0.17% |
| May 12, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 428396 | $2.50 | 1,423,760.0000 | 26,359,623 | 43.04% | 1.63% |
| May 12, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 132799 | $32.16 | 1,556,559.0000 | 26,359,623 | 9.33% | 0.50% |
| May 12, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 290797 | $37.18 | 1,265,762.0000 | 26,359,623 | 18.68% | 1.10% |
| May 12, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 64018 | $37.82 | 1,201,744.0000 | 26,359,623 | 5.06% | 0.24% |
| May 12, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 8301 | $38.65 | 1,193,443.0000 | 26,359,623 | 0.69% | 0.03% |
| May 13, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 186591 | $3.73 | 1,380,034.0000 | 26,359,623 | 15.63% | 0.71% |
| May 13, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 50571 | $37.27 | 1,329,463.0000 | 26,359,623 | 3.66% | 0.19% |
| May 13, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 58844 | $38.06 | 1,270,619.0000 | 26,359,623 | 4.43% | 0.22% |
| May 12, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Stock Option | 428396 | $0.00 | 0.0000 | 26,359,623 | 100.00% | 1.63% |
| May 12, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Stock Option | 132799 | $0.00 | 0.0000 | 26,359,623 | 100.00% | 0.50% |
| May 13, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Stock Option | 186591 | $0.00 | 0.0000 | 26,359,623 | 100.00% | 0.71% |
| Feb. 28, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Restricted Stock Units | 28568 | $0.00 | 0.0000 | 26,359,623 | 100.00% | 0.11% |
| Feb. 28, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | F | Class A Common Stock | 14613 | $32.29 | 995,364.0000 | 26,359,623 | 1.45% | 0.06% |
| Feb. 28, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 28568 | $0.00 | 1,009,977.0000 | 26,359,623 | 2.91% | 0.11% |
| Feb. 24, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 109232 | $0.00 | 1,037,282.0000 | 26,359,623 | 11.77% | 0.41% |
| Feb. 24, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | F | Class A Common Stock | 55873 | $43.64 | 981,409.0000 | 26,359,623 | 5.39% | 0.21% |
| Feb. 24, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Restricted Stock Units | 109232 | $0.00 | 109,233.0000 | 26,359,623 | 50.00% | 0.41% |
| Feb. 21, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 69527 | $0.00 | 910,797.0000 | 26,359,623 | 8.26% | 0.26% |
| Feb. 21, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Restricted Stock Units | 69527 | $0.00 | 208,582.0000 | 26,359,623 | 25.00% | 0.26% |
| Feb. 21, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Restricted Stock Units | 101395 | $0.00 | 202,791.0000 | 26,359,623 | 33.33% | 0.38% |
| Feb. 21, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | F | Class A Common Stock | 51864 | $44.21 | 928,050.0000 | 26,359,623 | 5.29% | 0.20% |
| Feb. 21, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 101395 | $0.00 | 979,914.0000 | 26,359,623 | 11.54% | 0.38% |
| Feb. 21, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | F | Class A Common Stock | 32278 | $44.21 | 878,519.0000 | 26,359,623 | 3.54% | 0.12% |
| Feb. 20, 2025 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | A | Restricted Stock Units | 176057 | $0.00 | 176,057.0000 | 26,359,623 | 9999.99% | 0.67% |
| Dec. 10, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Stock Option | 164832 | $0.00 | 644,664.0000 | 26,359,623 | 20.36% | 0.63% |
| Dec. 10, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 164832 | $2.50 | 662,209.0000 | 26,359,623 | 33.14% | 0.63% |
| Dec. 10, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 164432 | $55.03 | 497,777.0000 | 26,359,623 | 24.83% | 0.62% |
| Dec. 10, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 400 | $55.52 | 497,377.0000 | 26,359,623 | 0.08% | 0.00% |
| Dec. 11, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 216268 | $2.50 | 713,645.0000 | 26,359,623 | 43.48% | 0.82% |
| Dec. 11, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 216268 | $55.04 | 497,377.0000 | 26,359,623 | 30.30% | 0.82% |
| Dec. 12, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 343893 | $0.15 | 841,270.0000 | 26,359,623 | 69.14% | 1.30% |
| Dec. 11, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Stock Option | 216268 | $0.00 | 428,396.0000 | 26,359,623 | 33.55% | 0.82% |
| Dec. 12, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Stock Option | 343893 | $0.00 | 0.0000 | 26,359,623 | 100.00% | 1.30% |
| Dec. 6, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 1400 | $55.39 | 513,877.0000 | 26,359,623 | 0.27% | 0.01% |
| Dec. 6, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 16500 | $56.15 | 497,377.0000 | 26,359,623 | 3.21% | 0.06% |
| Nov. 26, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 25607 | $55.05 | 515,178.0000 | 26,359,623 | 4.74% | 0.10% |
| Nov. 18, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 22275 | $49.55 | 293,246.0000 | 26,359,623 | 7.06% | 0.08% |
| Nov. 15, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 16769 | $49.57 | 315,521.0000 | 26,359,623 | 5.05% | 0.06% |
| Nov. 14, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 159107 | $49.61 | 332,290.0000 | 26,359,623 | 32.38% | 0.60% |
| Oct. 30, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | G | Class A Common Stock | 210084 | $0.00 | 491,397.0000 | 26,359,623 | 29.95% | 0.80% |
| March 12, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 3500 | $30.00 | 701,363.0000 | 26,359,623 | 0.50% | 0.01% |
| March 8, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 12177 | $30.10 | 704,863.0000 | 26,359,623 | 1.70% | 0.05% |
| March 1, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | F | Class A Common Stock | 14613 | $33.55 | 717,040.0000 | 26,359,623 | 2.00% | 0.06% |
| March 1, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Restricted Stock Units | 28568 | $0.00 | 28,568.0000 | 26,359,623 | 50.00% | 0.11% |
| March 1, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 28568 | $0.00 | 728,653.0000 | 26,359,623 | 4.08% | 0.11% |
| Feb. 29, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 450000 | $2.50 | 950,988.0000 | 26,359,623 | 89.82% | 1.71% |
| Feb. 29, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | F | Class | 247903 | $31.00 | 703,085.0000 | 26,359,623 | 26.07% | 0.94% |
| Feb. 29, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Stock Option | 450000 | $0.00 | 809,496.0000 | 26,359,623 | 35.73% | 1.71% |
| Feb. 24, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 109233 | $0.00 | 556,861.0000 | 26,359,623 | 24.40% | 0.41% |
| Feb. 23, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 101395 | $0.00 | 493,585.0000 | 26,359,623 | 25.85% | 0.38% |
| Feb. 23, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | F | Class A Common Stock | 45957 | $24.71 | 447,628.0000 | 26,359,623 | 9.31% | 0.17% |
| Feb. 24, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | F | Class A Common Stock | 55873 | $24.71 | 500,988.0000 | 26,359,623 | 10.03% | 0.21% |
| Feb. 23, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Restricted Stock Units | 101395 | $0.00 | 304,186.0000 | 26,359,623 | 25.00% | 0.38% |
| Feb. 24, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Restricted Stock Units | 109233 | $0.00 | 218,465.0000 | 26,359,623 | 33.33% | 0.41% |
| Feb. 22, 2024 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | A | Restricted Stock Units | 278109 | $0.00 | 278,109.0000 | 26,359,623 | 9999.99% | 1.06% |
| Dec. 27, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | G | Class A Common Stock | 37455 | $0.00 | 392,190.0000 | 26,359,623 | 8.72% | 0.14% |
| Dec. 15, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 39300 | $27.16 | 429,645.0000 | 26,359,623 | 8.38% | 0.15% |
| Sept. 14, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Stock Option | 314865 | $0.00 | 0.0000 | 26,359,623 | 100.00% | 1.19% |
| Sept. 14, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 314865 | $2.50 | 573,939.0000 | 26,359,623 | 121.53% | 1.19% |
| Sept. 14, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Stock Option | 186588 | $0.00 | 185,591.0000 | 26,359,623 | 50.13% | 0.71% |
| Sept. 14, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 186588 | $3.73 | 580,748.0000 | 26,359,623 | 47.34% | 0.71% |
| Sept. 14, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | F | Class A Common Stock | 111950 | $20.75 | 468,798.0000 | 26,359,623 | 19.28% | 0.42% |
| Sept. 14, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | F | Class A Common Stock | 179779 | $20.75 | 394,160.0000 | 26,359,623 | 31.32% | 0.68% |
| June 15, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 100 | $19.90 | 358,974.0000 | 26,359,623 | 0.03% | 0.00% |
| June 15, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 6871 | $21.72 | 259,974.0000 | 26,359,623 | 2.57% | 0.03% |
| June 15, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 92129 | $20.32 | 266,845.0000 | 26,359,623 | 25.66% | 0.35% |
| June 15, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | S | Class A Common Stock | 900 | $22.29 | 259,074.0000 | 26,359,623 | 0.35% | 0.00% |
| March 1, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Restricted Stock Units | 57136 | $0.00 | 57,136.0000 | 26,359,623 | 50.00% | 0.22% |
| March 1, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | F | Class A Common Stock | 29266 | $15.60 | 358,891.0000 | 26,359,623 | 7.54% | 0.11% |
| March 1, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 57136 | $0.00 | 388,157.0000 | 26,359,623 | 17.26% | 0.22% |
| Feb. 23, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | A | Restricted Stock Units | 405581 | $0.00 | 405,581.0000 | 26,359,623 | 9999.99% | 1.54% |
| Feb. 24, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Class A Common Stock | 109232 | $0.00 | 376,892.0000 | 26,359,623 | 40.81% | 0.41% |
| Feb. 24, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | M | Restricted Stock Units | 109232 | $0.00 | 327,698.0000 | 26,359,623 | 25.00% | 0.41% |
| Feb. 24, 2023 | Vertex, Inc. | $VERX | DeStefano David | PRESIDENT & CEO | F | Class A Common Stock | 45871 | $15.44 | 331,021.0000 | 26,359,623 | 12.17% | 0.17% |