Teradata Corporation (TDC) Insider Trading
Over the last 3 months, TDC insiders made 0 open-market buys and 1 sale, a net sale of -$191K (SEC Form 4). Over the last 6 months, 321 institutions increased and 239 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
1
Net (3m)
-$190.8K
Insider trades by month Buys Sells
Nov
Mar
May
Feb
May
Jun
Context3-month price -20.8%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 18, 2026 | Fisher Melissa Bdirector | Grant | 2,197 | — |
| Aug 18, 2026 | McElhatton Todddirector | Grant | 2,197 | — |
| Aug 18, 2026 | Nelson Kimberly K.director | Grant | 2,197 | — |
| Aug 18, 2026 | Gianoni Michael Pdirector | Grant | 2,197 | — |
| Aug 18, 2026 | Bacus Lisa Rdirector | Grant | 2,197 | — |
| Aug 4, 2026 | Leukert Bernddirector | Grant | 8,330 | — |
| Jun 17, 2026 | Rogers Scot Frazierofficer: Chief Administrative Officer | Tax | 13,247 | $33.62 |
| Jun 17, 2026 | Rogers Scot Frazierofficer: Chief Administrative Officer | Tax | 10,266 | $33.62 |
| Jun 10, 2026 | CHOU TIMOTHY C Kdirector | Sell | 5,657 | $33.72 |
| Jun 2, 2026 | Petley Richard Jofficer: Chief Revenue Officer | Sell | 16,237 | $35.00 |
| Jun 2, 2026 | Petley Richard Jofficer: Chief Revenue Officer | Sell | 990 | $35.01 |
| May 26, 2026 | McElhatton Todddirector | Sell | 15,000 | $33.47 |
| May 20, 2026 | Arora Sumeetofficer: Chief Product Officer | Tax | 22,127 | $32.77 |
| May 20, 2026 | Arora Sumeetofficer: Chief Product Officer | Sell | 15,000 | $33.00 |
| May 20, 2026 | Arora Sumeetofficer: Chief Product Officer | Tax | 13,553 | $32.77 |
| May 20, 2026 | Ederer Johnofficer: Chief Financial Officer | Tax | 13,355 | $32.77 |
| May 18, 2026 | McElhatton Todddirector | Grant | 8,790 | — |
| May 18, 2026 | Gianoni Michael Pdirector | Grant | 8,790 | — |
| May 18, 2026 | Nelson Kimberly K.director | Grant | 8,790 | — |
| May 18, 2026 | Olsen Joanne Bethdirector | Grant | 8,790 | — |
| May 18, 2026 | Fisher Melissa Bdirector | Grant | 8,790 | — |
| May 18, 2026 | SCHWARZ JOHNdirector | Grant | 8,790 | — |
| May 18, 2026 | Bacus Lisa Rdirector | Grant | 8,790 | — |
| May 18, 2026 | CHOU TIMOTHY C Kdirector | Grant | 8,790 | — |
| May 14, 2026 | Petley Richard Jofficer: Chief Revenue Officer | Tax | 1,829 | $32.70 |
| May 13, 2026 | MCMILLAN STEPHENdirector, officer: President and CEO | Sell | 20,000 | $31.71 |
| May 8, 2026 | Arora Sumeetofficer: Chief Product Officer | Sell | 2,645 | $30.84 |
| May 8, 2026 | Petley Richard Jofficer: Chief Revenue Officer | Sell | 34,317 | $30.84 |
| Mar 10, 2026 | MCMILLAN STEPHENdirector, officer: President and CEO | Grant | 206,271 | — |
| Mar 10, 2026 | Rogers Scot Frazierofficer: Chief Administrative Officer | Grant | 53,630 | — |
Source: TDC SEC Form 4 filings, latest Aug 18, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their TDC positions over the last 6 months (SEC Form 13F).
Increased
321
New positions
205
Reduced
239
Sold out
61
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 16.4M | Aug 7, 2026 |
| BLACKROCK, INC. | Increased | 12.6M | May 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 9.9M | Aug 13, 2026 |
| LYNROCK LAKE LP | Reduced | 9.4M | May 15, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 9.2M | May 8, 2026 |
| Lynrock Lake LP | Reduced | 6.3M | Aug 14, 2026 |
| AQR CAPITAL MANAGEMENT LLC | Increased | 4.8M | Aug 14, 2026 |
| LSV ASSET MANAGEMENT | Increased | 4.5M | Aug 6, 2026 |
| AMERIPRISE FINANCIAL INC | Increased | 4.5M | Aug 14, 2026 |
| AMERIPRISE FINANCIAL INC | Increased | 4.2M | Jul 17, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 4.1M | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 4.0M | May 15, 2026 |
| MORGAN STANLEY | Increased | 4.0M | Aug 13, 2026 |
| STATE STREET CORP | Increased | 4.0M | Aug 7, 2026 |
| LSV ASSET MANAGEMENT | Increased | 3.4M | May 11, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.