Teradata Corp
Ownership
Ownership Structure
Who owns Teradata Corp (TDC)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 86.8% of the shares are freely tradable; institutional investors hold 118.0%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 17.63 | 16,392,455 | +30.6 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 10.61 | 9,864,883 | +7.1 | 06/30/2026 |
| Lynrock Lake LP | 6.83 | 6,349,030 | -32.1 | 06/30/2026 |
| AQR Capital Management LLC | 5.15 | 4,785,857 | +102.9 | 06/30/2026 |
| LSV Asset Management | 4.88 | 4,538,286 | +32.5 | 06/30/2026 |
| Ameriprise Financial Inc | 4.86 | 4,517,198 | +8.7 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.40 | 4,094,143 | +1.9 | 06/30/2026 |
| Morgan Stanley - Brokerage Accounts | 4.28 | 3,976,086 | +56.3 | 06/30/2026 |
| State Street Corp | 4.27 | 3,967,865 | +18.8 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 5.95 | 5,536,917 | +0.0 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Mcmillan Stephen | President and CEO | 752,446 | 25,808,898 $ | Sep 15, 2026 | direct |
| Hutchinson Michael D | Chief Operating Officer | 171,927 | 5,897,096 $ | Sep 15, 2026 | direct |
| Bacus Lisa R | Director | 86,091 | 2,952,921 $ | Aug 14, 2026 | direct |
| Nelson Kimberly K. | Director | 64,172 | 2,201,100 $ | Aug 14, 2026 | direct |
| Gianoni Michael P | Director | 42,510 | 1,458,093 $ | Aug 14, 2026 | direct |
| McElhatton Todd | Director | 28,862 | 989,967 $ | Aug 14, 2026 | direct |
| Fisher Melissa B | Director | 15,800 | 541,940 $ | Sep 1, 2026 | direct |
| Leukert Bernd | Director | 8,330 | 285,719 $ | Aug 1, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 15, 2026 | Hutchinson Michael D | Chief Operating Officer | Sell | 48,077 | 30.00 | 1,442,310 |
| Sep 15, 2026 | Mcmillan Stephen | President and CEO | Sell | 10,000 | 30.02 | 300,170 |
| Sep 1, 2026 | Fisher Melissa B | Director | Other | 344 | 0.00 | – |
| Sep 1, 2026 | Fisher Melissa B | Director | Other | 619 | 0.00 | – |
| Aug 14, 2026 | McElhatton Todd | Director | Other | 2,197 | 0.00 | – |
| Aug 14, 2026 | Gianoni Michael P | Director | Other | 2,197 | 0.00 | – |
| Aug 14, 2026 | Bacus Lisa R | Director | Other | 2,197 | 0.00 | – |
| Aug 14, 2026 | Fisher Melissa B | Director | Other | 2,197 | 0.00 | – |
| Aug 14, 2026 | Nelson Kimberly K. | Director | Other | 2,197 | 0.00 | – |
| Aug 1, 2026 | Leukert Bernd | Director | Other | 8,330 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.