TDC TERADATA CORP /DE/
NYSE · SEC CIK 816761 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $10.07M 12 sales by 8 insiders
- Filings on record
- 244 since 2021-07-09, latest 2026-09-17 14:12
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Lynrock Lake LP | 10% | — | $2.50M |
| MCMILLAN STEPHEN | Pres, CEO, Dir | — | $2.45M |
| Petley Richard J | Chief Revenue Off | — | $1.66M |
| Hutchinson Michael D | COO | — | $1.44M |
| Gianoni Michael P | Dir | — | $749.2K |
| Arora Sumeet | Chief Product Off | — | $576.6K |
| McElhatton Todd | Dir | — | $502.0K |
| CHOU TIMOTHY C K | Dir | — | $190.8K |
| Leukert Bernd | Dir | — | — |
| Ederer John | CFO | — | — |
Transactions 308
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| T | 2026-09-17 14:12 | 2026-09-15 | TDC | Hutchinson Michael D | COO | S - Sale | $30.00 | -48.1K | 171.9K | -22% | -$1.44M |
| T | 2026-09-17 14:09 | 2026-09-15 | TDC | MCMILLAN STEPHEN | Pres, CEO, Dir | S - Sale | $30.02 | -10.0K | 752.4K | -1% | -$300.2K |
| M | 2026-09-03 14:15 | 2026-09-01 | TDC | Fisher Melissa B | Dir | A - Grant | $0.00 | +963 | 15.8K | +6% | $0 |
| 2026-08-18 17:31 | 2026-08-14 | TDC | Bacus Lisa R | Dir | A - Grant | $0.00 | +2,197 | 86.1K | +3% | $0 | |
| 2026-08-18 17:29 | 2026-08-14 | TDC | Fisher Melissa B | Dir | A - Grant | $0.00 | +2,197 | 14.8K | +17% | $0 | |
| 2026-08-18 17:27 | 2026-08-14 | TDC | Gianoni Michael P | Dir | A - Grant | $0.00 | +2,197 | 42.5K | +5% | $0 | |
| 2026-08-18 17:19 | 2026-08-14 | TDC | McElhatton Todd | Dir | A - Grant | $0.00 | +2,197 | 28.9K | +8% | $0 | |
| 2026-08-18 17:17 | 2026-08-14 | TDC | Nelson Kimberly K. | Dir | A - Grant | $0.00 | +2,197 | 64.2K | +4% | $0 | |
| 2026-08-04 17:09 | 2026-08-01 | TDC | Leukert Bernd | Dir | A - Grant | $0.00 | +8,330 | 8,330 | New | $0 | |
| M | 2026-06-17 16:30 | 2026-06-15 | TDC | Rogers Scot Frazier | Chief Administrative Off | F - Tax | $33.62 | -23.5K | 216.6K | -10% | -$790.5K |
| T | 2026-06-10 17:14 | 2026-06-08 | TDC | CHOU TIMOTHY C K | Dir | S - Sale | $33.72 | -5,657 | 39.2K | -13% | -$190.8K |
| MT | 2026-06-02 16:31 | 2026-06-01 | TDC | Petley Richard J | Chief Revenue Off | S - Sale | $35.00 | -17.2K | 188.6K | -8% | -$603.0K |
| 2026-05-26 16:45 | 2026-05-22 | TDC | McElhatton Todd | Dir | S - Sale | $33.47 | -15.0K | 26.7K | -36% | -$502.0K | |
| MT | 2026-05-20 16:16 | 2026-05-18 | TDC | Arora Sumeet | Chief Product Off | F - Tax | $32.77 | -35.7K | 265.8K | -12% | -$1.17M |
| T | 2026-05-20 16:16 | 2026-05-19 | TDC | Arora Sumeet | Chief Product Off | S - Sale | $33.00 | -15.0K | 250.8K | -6% | -$495.0K |
| 2026-05-20 16:16 | 2026-05-18 | TDC | Ederer John | CFO | F - Tax | $32.77 | -13.4K | 368.4K | -3% | -$437.6K | |
| 2026-05-18 16:17 | 2026-05-14 | TDC | Bacus Lisa R | Dir | A - Grant | $0.00 | +8,790 | 83.9K | +12% | $0 | |
| 2026-05-18 16:17 | 2026-05-14 | TDC | Gianoni Michael P | Dir | A - Grant | $0.00 | +8,790 | 40.3K | +28% | $0 | |
| 2026-05-18 16:17 | 2026-05-14 | TDC | Nelson Kimberly K. | Dir | A - Grant | $0.00 | +8,790 | 62.0K | +17% | $0 | |
| 2026-05-18 16:17 | 2026-05-14 | TDC | Olsen Joanne Beth | Dir | A - Grant | $0.00 | +8,790 | 69.0K | +15% | $0 | |
| 2026-05-18 16:17 | 2026-05-14 | TDC | Fisher Melissa B | Dir | A - Grant | $0.00 | +8,790 | 12.6K | +228% | $0 | |
| 2026-05-18 16:17 | 2026-05-14 | TDC | SCHWARZ JOHN | Dir | A - Grant | $0.00 | +8,790 | 110.6K | +9% | $0 | |
| 2026-05-18 16:17 | 2026-05-14 | TDC | CHOU TIMOTHY C K | Dir | A - Grant | $0.00 | +8,790 | 44.9K | +24% | $0 | |
| 2026-05-18 16:17 | 2026-05-14 | TDC | McElhatton Todd | Dir | A - Grant | $0.00 | +8,790 | 41.7K | +27% | $0 | |
| 2026-05-14 17:37 | 2026-05-13 | TDC | Petley Richard J | Chief Revenue Off | F - Tax | $32.70 | -1,829 | 205.8K | -0.9% | -$59.8K | |
| 2026-05-13 18:31 | 2026-05-12 | TDC | MCMILLAN STEPHEN | Pres, CEO, Dir | S - Sale | $31.71 | -20.0K | 762.4K | -3% | -$634.2K | |
| T | 2026-05-08 16:24 | 2026-05-07 | TDC | Arora Sumeet | Chief Product Off | S - Sale | $30.84 | -2,645 | 301.5K | -0.9% | -$81.6K |
| T | 2026-05-08 16:24 | 2026-05-07 | TDC | Petley Richard J | Chief Revenue Off | S - Sale | $30.84 | -34.3K | 207.6K | -14% | -$1.06M |
| 2026-03-10 | 2026-03-01 | TDC | Ederer John | CFO | A - Grant | $0.00 | +74.3K | 381.8K | +24% | $0 | |
| 2026-03-10 | 2026-03-06 | TDC | Hutchinson Michael D | COO | F - Tax | $28.02 | -3,727 | 220.0K | -2% | -$104.4K | |
| 2026-03-10 | 2026-03-01 | TDC | Hutchinson Michael D | COO | A - Grant | $0.00 | +66.0K | 223.7K | +42% | $0 | |
| M | 2026-03-10 | 2026-03-01 | TDC | Fisher Melissa B | Dir | A - Grant | $0.00 | +3,850 | 2,475 | New | $0 |
| 2026-03-10 | 2026-03-01 | TDC | Rogers Scot Frazier | Chief Administrative Off | A - Grant | $0.00 | +53.6K | 240.2K | +29% | $0 | |
| 2026-03-10 | 2026-03-06 | TDC | Petley Richard J | Chief Revenue Off | F - Tax | $28.02 | -3,180 | 241.9K | -1% | -$89.1K | |
| 2026-03-10 | 2026-03-01 | TDC | Petley Richard J | Chief Revenue Off | A - Grant | $0.00 | +74.3K | 245.1K | +43% | $0 | |
| 2026-03-10 | 2026-03-01 | TDC | MCMILLAN STEPHEN | Pres, CEO, Dir | A - Grant | $0.00 | +206.3K | 809.1K | +34% | $0 | |
| 2026-03-10 | 2026-03-06 | TDC | MCMILLAN STEPHEN | Pres, CEO, Dir | F - Tax | $28.02 | -22.2K | 786.8K | -3% | -$622.9K | |
| 2026-03-10 | 2026-03-09 | TDC | MCMILLAN STEPHEN | Pres, CEO, Dir | J - Other | $0.00 | -4,376 | 782.4K | -0.6% | $0 | |
| 2026-03-10 | 2026-03-01 | TDC | Arora Sumeet | Chief Product Off | A - Grant | $0.00 | +66.0K | 304.1K | +28% | $0 | |
| 2026-03-05 | 2026-03-03 | TDC | Hutchinson Michael D | COO | F - Tax | $30.36 | -15.2K | 157.7K | -9% | -$461.7K | |
| 2026-03-05 | 2026-03-03 | TDC | Petley Richard J | Chief Revenue Off | F - Tax | $30.36 | -13.3K | 170.9K | -7% | -$404.1K | |
| 2026-03-05 | 2026-03-03 | TDC | MCMILLAN STEPHEN | Pres, CEO, Dir | F - Tax | $30.36 | -40.3K | 602.8K | -6% | -$1.22M | |
| 2026-03-03 | 2026-02-27 | TDC | Petley Richard J | Chief Revenue Off | F - Tax | $31.49 | -2,899 | 184.2K | -2% | -$91.3K | |
| 2026-03-03 | 2026-02-27 | TDC | Hutchinson Michael D | COO | F - Tax | $31.49 | -5,052 | 172.9K | -3% | -$159.1K | |
| 2026-03-03 | 2026-02-27 | TDC | MCMILLAN STEPHEN | Pres, CEO, Dir | F - Tax | $31.49 | -20.1K | 643.1K | -3% | -$632.6K | |
| 2026-02-27 | 2026-02-26 | TDC | MCMILLAN STEPHEN | Pres, CEO, Dir | S - Sale | $30.26 | -50.0K | 663.2K | -7% | -$1.51M | |
| 2026-02-25 | 2026-02-24 | TDC | Gianoni Michael P | Dir | S - Sale | $29.97 | -25.0K | 31.5K | -44% | -$749.2K | |
| M | 2026-02-13 | 2026-02-11 | TDC | Petley Richard J | Chief Revenue Off | F - Tax | $37.88 | -16.6K | 155.3K | -10% | -$630.5K |
| M | 2026-02-13 | 2026-02-11 | TDC | Petley Richard J | Chief Revenue Off | A - Grant | $0.00 | +59.9K | 193.1K | +45% | $0 |
| 2026-02-13 | 2026-02-11 | TDC | Arora Sumeet | Chief Product Off | F - Tax | $37.88 | -6,831 | 238.1K | -3% | -$258.8K | |
| 2026-02-13 | 2026-02-11 | TDC | Arora Sumeet | Chief Product Off | A - Grant | $0.00 | +36.4K | 244.9K | +17% | $0 | |
| MI | 2026-02-13 | 2026-02-11 | TDC | Lynrock Lake LP | 10% | S - Sale | $40.29 | -62.0K | 9.35M | -0.7% | -$2.50M |
| 2026-02-13 | 2026-02-11 | TDC | Rogers Scot Frazier | Chief Administrative Off | A - Grant | $0.00 | +31.7K | 191.3K | +20% | $0 | |
| 2026-02-13 | 2026-02-11 | TDC | Rogers Scot Frazier | Chief Administrative Off | F - Tax | $37.88 | -4,813 | 186.5K | -3% | -$182.3K | |
| M | 2026-02-13 | 2026-02-11 | TDC | MCMILLAN STEPHEN | Pres, CEO, Dir | F - Tax | $37.88 | -92.5K | 626.4K | -13% | -$3.50M |
| M | 2026-02-13 | 2026-02-11 | TDC | MCMILLAN STEPHEN | Pres, CEO, Dir | A - Grant | $0.00 | +246.5K | 731.5K | +51% | $0 |
| M | 2026-02-13 | 2026-02-11 | TDC | Hutchinson Michael D | COO | A - Grant | $0.00 | +60.5K | 184.9K | +49% | $0 |
| M | 2026-02-13 | 2026-02-11 | TDC | Hutchinson Michael D | COO | F - Tax | $37.88 | -19.5K | 178.0K | -10% | -$739.1K |
| 2026-02-13 | 2026-02-11 | TDC | Ederer John | CFO | F - Tax | $37.88 | -6,418 | 307.5K | -2% | -$243.1K | |
| 2026-02-13 | 2026-02-11 | TDC | Ederer John | CFO | A - Grant | $0.00 | +46.7K | 313.9K | +17% | $0 | |
| 2025-11-18 | 2025-11-17 | TDC | Ederer John | CFO | F - Tax | $26.13 | -41.0K | 267.2K | -13% | -$1.07M | |
| 2025-11-18 | 2025-11-17 | TDC | Arora Sumeet | Chief Product Off | F - Tax | $26.13 | -8,333 | 208.6K | -4% | -$217.7K | |
| M | 2025-06-17 | 2025-06-13 | TDC | Rogers Scot Frazier | Chief Administrative Off | A - Grant | $0.00 | +159.6K | 159.6K | New | $0 |
| 2025-05-27 | 2025-05-22 | TDC | CHOU TIMOTHY C K | Dir | S - Sale | $21.83 | -6,216 | 36.1K | -15% | -$135.7K | |
| M | 2025-05-20 | 2025-05-16 | TDC | Arora Sumeet | Chief Product Off | A - Grant | $0.00 | +216.9K | 137.0K | New | $0 |
| M | 2025-05-20 | 2025-05-16 | TDC | Ederer John | CFO | A - Grant | $0.00 | +308.2K | 205.5K | New | $0 |
| 2025-05-19 | 2025-05-15 | TDC | Nelson Kimberly K. | Dir | A - Grant | $0.00 | +11.5K | 53.2K | +28% | $0 | |
| 2025-05-19 | 2025-05-15 | TDC | McElhatton Todd | Dir | A - Grant | $0.00 | +11.5K | 32.9K | +54% | $0 | |
| 2025-05-19 | 2025-05-15 | TDC | SCHWARZ JOHN | Dir | A - Grant | $0.00 | +11.5K | 101.8K | +13% | $0 | |
| 2025-05-19 | 2025-05-15 | TDC | Gianoni Michael P | Dir | A - Grant | $0.00 | +11.5K | 56.5K | +26% | $0 | |
| 2025-05-19 | 2025-05-15 | TDC | Olsen Joanne Beth | Dir | A - Grant | $0.00 | +11.5K | 60.2K | +24% | $0 | |
| 2025-05-19 | 2025-05-15 | TDC | Fishback Daniel R | Dir | A - Grant | $0.00 | +11.5K | 67.5K | +21% | $0 | |
| 2025-05-19 | 2025-05-15 | TDC | CHOU TIMOTHY C K | Dir | A - Grant | $0.00 | +11.5K | 42.3K | +37% | $0 | |
| 2025-05-19 | 2025-05-15 | TDC | Bacus Lisa R | Dir | A - Grant | $0.00 | +11.5K | 75.1K | +18% | $0 | |
| 2025-05-15 | 2025-05-13 | TDC | Petley Richard J | Chief Revenue Off | F - Tax | $23.55 | -1,829 | 143.8K | -1% | -$43.1K | |
| M | 2025-04-08 | 2025-04-07 | TDC | Petley Richard J | Chief Revenue Off | F - Tax | $19.20 | -5,322 | 145.6K | -4% | -$102.2K |
| 2025-03-27 | 2025-03-25 | TDC | Smotherman Charles T | Interim Chief Financial Ofcr | A - Grant | $0.00 | +86.3K | 114.6K | +304% | $0 | |
| M | 2025-03-11 | 2025-03-10 | TDC | BRAMLEY CLAIRE | CFO | S - Sale | $22.83 | -35.5K | 105.9K | -25% | -$809.8K |
| 2025-03-10 | 2025-03-06 | TDC | Cullen-Cote Kathleen R | CHRO | F - Tax | $22.98 | -3,285 | 144.5K | -2% | -$75.5K | |
| 2025-03-10 | 2025-03-07 | TDC | Cullen-Cote Kathleen R | CHRO | S - Sale | $22.88 | -1,755 | 142.7K | -1% | -$40.2K | |
| 2025-03-10 | 2025-03-06 | TDC | Petley Richard J | Chief Revenue Off | F - Tax | $22.98 | -3,180 | 151.0K | -2% | -$73.1K | |
| 2025-03-10 | 2025-03-06 | TDC | Woods Jacqueline D. | CMO | F - Tax | $22.98 | -2,519 | 112.6K | -2% | -$57.9K | |
| 2025-03-10 | 2025-03-06 | TDC | Treese Margaret A | CLO | F - Tax | $22.98 | -3,795 | 142.3K | -3% | -$87.2K | |
| 2025-03-10 | 2025-03-07 | TDC | MCMILLAN STEPHEN | Pres, CEO, Dir | J - Other | $0.00 | -36.7K | 559.1K | -6% | $0 | |
| 2025-03-10 | 2025-03-06 | TDC | MCMILLAN STEPHEN | Pres, CEO, Dir | F - Tax | $22.98 | -22.6K | 595.9K | -4% | -$520.5K | |
| 2025-03-10 | 2025-03-06 | TDC | Hutchinson Michael D | COO | F - Tax | $22.98 | -3,040 | 137.0K | -2% | -$69.9K | |
| 2025-03-10 | 2025-03-06 | TDC | BRAMLEY CLAIRE | CFO | F - Tax | $22.98 | -7,763 | 141.3K | -5% | -$178.4K | |
| 2025-03-05 | 2025-03-04 | TDC | Cullen-Cote Kathleen R | CHRO | S - Sale | $23.16 | -1,881 | 147.7K | -1% | -$43.6K | |
| 2025-03-04 | 2025-03-03 | TDC | BRAMLEY CLAIRE | CFO | F - Tax | $23.38 | -5,015 | 149.1K | -3% | -$117.3K | |
| 2025-03-04 | 2025-03-03 | TDC | Petley Richard J | Chief Revenue Off | A - Grant | $0.00 | +83.2K | 154.1K | +117% | $0 | |
| 2025-03-04 | 2025-03-03 | TDC | Woods Jacqueline D. | CMO | F - Tax | $23.38 | -2,092 | 74.5K | -3% | -$48.9K | |
| 2025-03-04 | 2025-03-03 | TDC | Woods Jacqueline D. | CMO | A - Grant | $0.00 | +40.7K | 115.1K | +55% | $0 | |
| 2025-03-04 | 2025-03-03 | TDC | Hutchinson Michael D | COO | F - Tax | $23.38 | -2,243 | 56.9K | -4% | -$52.4K | |
| 2025-03-04 | 2025-03-03 | TDC | Hutchinson Michael D | COO | A - Grant | $0.00 | +83.2K | 140.1K | +146% | $0 | |
| M | 2025-03-04 | 2025-02-28+ | TDC | Cullen-Cote Kathleen R | CHRO | S - Sale | $23.73 | -8,308 | 109.0K | -7% | -$197.2K |
| 2025-03-04 | 2025-03-03 | TDC | Cullen-Cote Kathleen R | CHRO | A - Grant | $0.00 | +42.5K | 149.6K | +40% | $0 | |
| 2025-03-04 | 2025-03-03 | TDC | Cullen-Cote Kathleen R | CHRO | F - Tax | $23.38 | -1,882 | 107.1K | -2% | -$44.0K | |
| 2025-03-04 | 2025-03-03 | TDC | Treese Margaret A | CLO | F - Tax | $23.38 | -3,152 | 99.8K | -3% | -$73.7K | |
| 2025-03-04 | 2025-03-03 | TDC | Treese Margaret A | CLO | A - Grant | $0.00 | +46.2K | 146.0K | +46% | $0 | |
| 2025-03-04 | 2025-03-03 | TDC | MCMILLAN STEPHEN | Pres, CEO, Dir | F - Tax | $23.38 | -18.8K | 387.5K | -5% | -$439.8K |
Purchase Sale Sale after option exercise All abbreviations