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Are Teradata Insiders Buying or Selling?
Teradata (TDC) has had 7 insider transactions in the past 90 days, all sells. The most recent was CHOU TIMOTHY C K, who sold 5,657 shares at $33.72 on June 8, 2026.
Insider trading patterns can signal confidence or concern from the people who know the company best. AltIndex tracks insider transactions as one of 25+ alternative data signals in the TDC AI Score. For government officials trading this stock, see TDC congressional trading.
Who’s Trading Teradata Stock?
| Insider | Activity | Trades | Last Trade |
|---|---|---|---|
| STEPHEN MCMILLAN | Sold $2.7M | 3 | May 12, 2026 |
| Lynrock Lake LP | Sold $2.5M | 3 | Feb 11, 2026 |
| Hillary Ashton | Sold $2M | 2 | Nov 7, 2024 |
| Richard Petley | Sold $1.7M | 3 | Jun 1, 2026 |
| CLAIRE BRAMLEY | Sold $810,000 | 4 | Mar 10, 2025 |
| Michael Gianoni | Sold $750,000 | 1 | Feb 24, 2026 |
Recent Teradata Insider Transactions
| Insider | Transaction Date | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| CHOU TIMOTHY C K | Jun 8, 2026 | Sell | 5,657 | $33.72 | $190,000 |
| Richard Petley | Jun 1, 2026 | Sell | 16,237 | $35 | $570,000 |
| Richard Petley | Jun 1, 2026 | Sell | 990 | $35.01 | $35,000 |
| Todd McElhatton | May 22, 2026 | Sell | 15,000 | $33.47 | $500,000 |
| STEPHEN MCMILLAN | May 12, 2026 | Sell | 20,000 | $31.71 | $630,000 |
| Richard Petley | May 7, 2026 | Sell | 34,317 | $30.84 | $1.1M |
| Sumeet Arora | May 7, 2026 | Sell | 2,645 | $30.84 | $82,000 |
| STEPHEN MCMILLAN | Feb 26, 2026 | Sell | 50,000 | $30.26 | $1.5M |
| Michael Gianoni | Feb 24, 2026 | Sell | 25,000 | $29.97 | $750,000 |
| Lynrock Lake LP | Feb 11, 2026 | Sell | 40,807 | $40.24 | $1.6M |
| Lynrock Lake LP | Feb 11, 2026 | Sell | 10,669 | $41.19 | $440,000 |
| Lynrock Lake LP | Feb 11, 2026 | Sell | 10,514 | $39.57 | $420,000 |
| CHOU TIMOTHY C K | May 22, 2025 | Sell | 6,216 | $21.83 | $140,000 |
| CLAIRE BRAMLEY | Mar 10, 2025 | Sell | 19,839 | $22.83 | $450,000 |
| CLAIRE BRAMLEY | Mar 10, 2025 | Sell | 15,225 | $22.82 | $350,000 |
| CLAIRE BRAMLEY | Mar 10, 2025 | Sell | 300 | $23.5 | $7,100 |
| CLAIRE BRAMLEY | Mar 10, 2025 | Sell | 100 | $23.52 | $2,400 |
| Kathleen Cullen-Cote | Mar 7, 2025 | Sell | 1,755 | $22.88 | $40,000 |
| Kathleen Cullen-Cote | Mar 4, 2025 | Sell | 1,881 | $23.16 | $44,000 |
| Kathleen Cullen-Cote | Mar 3, 2025 | Sell | 5,955 | $23.87 | $140,000 |
| Kathleen Cullen-Cote | Feb 28, 2025 | Sell | 2,353 | $23.39 | $55,000 |
| STEPHEN MCMILLAN | Nov 8, 2024 | Sell | 20,000 | $30 | $600,000 |
| Hillary Ashton | Nov 7, 2024 | Sell | 54,610 | $29.1 | $1.6M |
| Hillary Ashton | Sep 10, 2024 | Sell | 14,962 | $27.53 | $410,000 |
| Kathleen Cullen-Cote | Sep 10, 2024 | Sell | 7,779 | $27.51 | $210,000 |
| Margaret Treese | Aug 29, 2024 | Sell | 5,500 | $28.51 | $160,000 |
| Kathleen Cullen-Cote | Aug 13, 2024 | Sell | 9,683 | $25.94 | $250,000 |
Frequently Asked Questions: Teradata Insider Trading
In the past 90 days, Teradata insiders have made 0 buys and 7 sells. The net selling may indicate insiders are taking profits or reducing exposure.
The most recent sale was by CHOU TIMOTHY C K who sold 5,657 shares on June 8, 2026. View all transactions in the table on this page.
Insider buying is generally a stronger signal than insider selling, since insiders may sell for personal reasons (diversification, taxes) but typically buy only when they believe the stock is undervalued. AltIndex uses insider transaction patterns alongside 25+ other signals in the AI Score.
MCMILLAN STEPHEN has sold the most TDC stock in the last 2 years, with a total value of $2.7M.
The total value of insider transactions for Teradata in the last 2 years is negative, amounting to -$12M. This suggests that insiders have predominantly sold shares, which could reflect various personal or financial considerations rather than a straightforward outlook on the company's future performance.
