Updated Jul 16, 2026 · Last SEC filing 2026-06-17
TERADATA CORP /DE/ (TDC) has filed 18 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-17. 3 Form 8-K material event filings were reported by TDC in the last 90 days. 7 Form 144 notices of proposed sale were filed for TDC stock. InsiderAlpha tracks every TDC SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0000816761 |
|---|
| Form 4 filings (90d) | 18 |
|---|---|
| Form 8-K filings (90d) | 3 |
| Form 144 notices (90d) | 7 |
| Latest Form 4 filing | 2026-06-17 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Rogers Scot Frazier | Chief Administrative Officer | F — Tax withholding / forfeiture | 13.2K | $33.62 | $445K | SEC | |
| Rogers Scot Frazier | Chief Administrative Officer | F — Tax withholding / forfeiture | 10.3K | $33.62 | $345K | SEC | |
| CHOU TIMOTHY C K | Director | S — Open-market sale | 5.7K | $33.72 | $191K | SEC | |
| Petley Richard J | Chief Revenue Officer | S — Open-market sale | 16.2K | $35.00 | $568K | SEC | |
| Petley Richard J | Chief Revenue Officer | S — Open-market sale | 990 | $35.01 | $35K | SEC | |
| McElhatton Todd | Director | S — Open-market sale | 15.0K | $33.47 | $502K | SEC | |
| Arora Sumeet | Chief Product Officer | S — Open-market sale | 15.0K | $33.00 | $495K | SEC | |
| Arora Sumeet | Chief Product Officer | F — Tax withholding / forfeiture | 22.1K | $32.77 | $725K | SEC | |
| Arora Sumeet | Chief Product Officer | F — Tax withholding / forfeiture | 13.6K | $32.77 | $444K | SEC | |
| Ederer John | Chief Financial Officer | F — Tax withholding / forfeiture | 13.4K | $32.77 | $438K | SEC | |
| Fisher Melissa B | Director | A — Grant or award | 8.8K | $0.00 | — | SEC | |
| Bacus Lisa R | Director | A — Grant or award | 8.8K | $0.00 | — | SEC | |
| Gianoni Michael P | Director | A — Grant or award | 8.8K | $0.00 | — | SEC | |
| Olsen Joanne Beth | Director | A — Grant or award | 8.8K | $0.00 | — | SEC | |
| Nelson Kimberly K. | Director | A — Grant or award | 8.8K | $0.00 | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for TERADATA CORP /DE/ (TDC). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Petley Richard J | 4 | $1.72M |
| Arora Sumeet | 4 | $1.75M |
| Rogers Scot Frazier | 2 | $791K |
| McElhatton Todd | 2 | $502K |
| CHOU TIMOTHY C K | 2 | $191K |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in TDC insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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