TDC · Insider Trading
TERADATA CORPORATION
Every open-market purchase and sale reported by TDC officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-11-04 | Bernd Leukert | Director | M | +2,082 | — |
| 2026-09-17 | Stephen McMillan | President and CEO | Sell | −10,000 | −$300.17K |
| 2026-09-17 | Michael D Hutchinson | Chief Operating Officer | Sell | −48,077 | −$1.44M |
| 2026-09-03 | Melissa B Fisher | Director | A | +963 | — |
| 2026-08-18 | Todd McElhatton | Director | A | +2,197 | — |
| 2026-08-18 | Kimberly K. Nelson | Director | A | +2,197 | — |
| 2026-08-18 | Lisa R Bacus | Director | A | +2,197 | — |
| 2026-08-18 | Melissa B Fisher | Director | A | +2,197 | — |
| 2026-08-18 | Michael P Gianoni | Director | A | +2,197 | — |
| 2026-08-04 | Bernd Leukert | Director | A | +8,330 | — |
| 2026-06-17 | Scot Frazier Rogers | Chief Administrative Officer | F | −23,513 | −$790.51K |
| 2026-06-10 | Timothy C K Chou | Director | Sell | −5,657 | −$190.75K |
| 2026-06-02 | Richard J Petley | Chief Revenue Officer | Sell | −17,227 | −$602.95K |
| 2026-05-26 | Todd McElhatton | Director | Sell | −15,000 | −$502.02K |
| 2026-05-20 | John Ederer | Chief Financial Officer | F | −13,355 | −$437.64K |
| 2026-05-20 | Sumeet Arora | Chief Product Officer | MIXED | −50,680 | −$1.66M |
| 2026-05-18 | Todd McElhatton | Director | A | +8,790 | — |
| 2026-05-18 | Timothy C K Chou | Director | A | +8,790 | — |
| 2026-05-18 | John Schwarz | Director | A | +8,790 | — |
| 2026-05-18 | Melissa B Fisher | Director | A | +8,790 | — |
| 2026-05-18 | Joanne Beth Olsen | Director | A | +8,790 | — |
| 2026-05-18 | Kimberly K. Nelson | Director | A | +8,790 | — |
| 2026-05-18 | Michael P Gianoni | Director | A | +8,790 | — |
| 2026-05-18 | Lisa R Bacus | Director | A | +8,790 | — |
| 2026-05-14 | Richard J Petley | Chief Revenue Officer | F | −1,829 | −$59.81K |
| 2026-05-13 | Stephen McMillan | President and CEO | Sell | −20,000 | −$634.16K |
| 2026-05-08 | Richard J Petley | Chief Revenue Officer | Sell | −34,317 | −$1.06M |
| 2026-05-08 | Sumeet Arora | Chief Product Officer | Sell | −2,645 | −$81.57K |
| 2026-03-10 | Richard J Petley | Chief Revenue Officer | MIXED | +71,077 | −$89.10K |
| 2026-03-10 | Michael D Hutchinson | Chief Operating Officer | MIXED | +62,280 | −$104.43K |
| 2026-03-10 | Scot Frazier Rogers | Chief Administrative Officer | A | +53,630 | — |
| 2026-03-10 | Sumeet Arora | Chief Product Officer | A | +66,007 | — |
| 2026-03-10 | John Ederer | Chief Financial Officer | A | +74,257 | — |
| 2026-03-10 | Stephen McMillan | President and CEO | MIXED | +179,665 | −$622.88K |
| 2026-03-10 | Melissa B Fisher | Director | A | +3,850 | — |
| 2026-03-05 | Richard J Petley | Chief Revenue Officer | F | −13,309 | −$404.06K |
| 2026-03-05 | Michael D Hutchinson | Chief Operating Officer | F | −15,208 | −$461.71K |
| 2026-03-05 | Stephen McMillan | President and CEO | F | −40,319 | −$1.22M |
| 2026-03-03 | Michael D Hutchinson | Chief Operating Officer | F | −5,052 | −$159.09K |
| 2026-03-03 | Stephen McMillan | President and CEO | F | −20,090 | −$632.63K |
| 2026-03-03 | Richard J Petley | Chief Revenue Officer | F | −2,899 | −$91.29K |
| 2026-02-27 | Stephen McMillan | President and CEO | Sell | −50,000 | −$1.51M |
| 2026-02-25 | Michael P Gianoni | Director | Sell | −25,000 | −$749.12K |
| 2026-02-13 | Michael D Hutchinson | Chief Operating Officer | MIXED | +40,960 | −$739.08K |
| 2026-02-13 | Richard J Petley | Chief Revenue Officer | MIXED | +43,260 | −$630.51K |
| 2026-02-13 | Scot Frazier Rogers | Chief Administrative Officer | MIXED | +26,898 | −$182.32K |
| 2026-02-13 | Stephen McMillan | President and CEO | MIXED | +154,065 | −$3.50M |
| 2026-02-13 | Sumeet Arora | Chief Product Officer | MIXED | +29,528 | −$258.76K |
| 2026-02-13 | John Ederer | Chief Financial Officer | MIXED | +40,329 | −$243.11K |
| 2026-02-13 | Cynthia Paul | 10%+ Owner | Sell | −61,990 | −$2.50M |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Cynthia Paul | 10%+ Owner | 9,406,152 | $304.01M |
| Stephen McMillan | President and CEO | 752,446 | $24.32M |
| John Ederer | Chief Financial Officer | 368,426 | $11.91M |
| Sumeet Arora | Chief Product Officer | 287,899 | $9.30M |
| Scot Frazier Rogers | Chief Administrative Officer | 216,637 | $7.00M |
| Richard J Petley | Chief Revenue Officer | 188,571 | $6.09M |
| Michael D Hutchinson | Chief Operating Officer | 171,927 | $5.56M |
| Kathleen R Cullen-Cote | Chief People Officer | 142,707 | $4.61M |
| Margaret A Treese | Chief Legal Officer | 142,253 | $4.60M |
| Claire Bramley | Chief Financial Officer | 125,772 | $4.06M |
| Charles T Smotherman | Interim Chief Financial Ofcr | 114,618 | $3.70M |
| Jacqueline D. Woods | Chief Marketing Officer | 112,626 | $3.64M |
| John Schwarz | Director | 110,569 | $3.57M |
| Lisa R Bacus | Director | 86,091 | $2.78M |
| Joanne Beth Olsen | Director | 69,001 | $2.23M |
| Daniel R Fishback | Director | 67,522 | $2.18M |
| Kimberly K. Nelson | Director | 64,172 | $2.07M |
| Michael P Gianoni | Director | 42,510 | $1.37M |
| Timothy C K Chou | Director | 39,210 | $1.27M |
| Todd McElhatton | Director | 28,862 | $932.82K |
| Melissa B Fisher | Director | 15,800 | $510.66K |
| Bernd Leukert | Director | 10,412 | $336.52K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the TDC quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.