Teradata Corporation (TDC) has 20 known insider and institutional holders on record. The largest holder is Lynrock Lake LP with 9,354,676 shares. Other notable holders include MCMILLAN STEPHEN and LUND VICTOR L.
Over the last 12 months, insiders have made 46 transactions in TDC stock — 18 buys (valued at RSU Award) and 4 sells (valued at $2.84M). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
TDC Insider Ownership
Top Holder
Lynrock Lake LP
9,354,676 shares
Buys (12 mo)
18
$0.00 value
Sells (12 mo)
4
$2.84M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Lynrock Lake Lp |
10 Percent Owner |
9,354,676 |
2026-02-13 |
|
| 2 |
Mcmillan Stephen |
President and CEO |
809,052 |
2026-03-10 |
|
| 3 |
Lund Victor L |
Interim President & CEO |
475,524 |
2020-02-12 |
|
| 4 |
Ederer John |
Chief Financial Officer |
381,781 |
2026-03-10 |
|
| 5 |
Arora Sumeet |
Chief Product Officer |
304,097 |
2026-03-10 |
|
| 6 |
Koehler Michael |
President and CEO |
290,203 |
2016-03-10 |
|
| 7 |
Culhane Mark |
Chief Financial Officer |
270,107 |
2021-05-28 |
|
| 8 |
Petley Richard J |
Chief Revenue Officer |
245,124 |
2026-03-10 |
|
| 9 |
Rogers Scot Frazier |
Chief Administrative Officer |
240,150 |
2026-03-10 |
|
| 10 |
Harrington Daniel L |
Chief Services Officer |
237,646 |
2021-03-02 |
|
| 11 |
Hutchinson Michael D |
Chief Operating Officer |
223,731 |
2026-03-10 |
|
| 12 |
Brown Scott A |
Chief Revenue Officer |
190,194 |
2020-07-02 |
|
| 13 |
Cullen-cote Kathleen R |
Chief People Officer |
144,462 |
2025-03-10 |
|
| 14 |
Treese Margaret A |
Chief Legal Officer |
142,253 |
2025-03-10 |
|
| 15 |
Ratzesberger Oliver |
President and CEO |
121,896 |
2019-03-05 |
|
| 16 |
Cione Todd |
Chief Revenue Officer |
119,422 |
2024-03-08 |
|
| 17 |
Woods Jacqueline D. |
Chief Marketing Officer |
112,626 |
2025-03-10 |
|
| 18 |
Fair Robert |
Chief Operating Officer |
110,922 |
2016-05-31 |
|
| 19 |
Bramley Claire |
Chief Financial Officer |
105,833 |
2025-03-11 |
|
| 20 |
Nyquist Laura K |
General Counsel |
102,331 |
2020-03-03 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-01 |
Arora Sumeet |
Chief Product Officer |
RSU Award |
66,007 |
- |
- |
| 2026-03-06 |
Petley Richard J |
Chief Revenue Officer |
Tax Withholding of RSU |
3,180 |
$28.02 |
$89.1K |
| 2026-03-01 |
Petley Richard J |
Chief Revenue Officer |
RSU Award |
74,257 |
- |
- |
| 2026-03-06 |
Hutchinson Michael D |
Chief Operating Officer |
Tax Withholding of RSU |
3,727 |
$28.02 |
$104.43K |
| 2026-03-01 |
Hutchinson Michael D |
Chief Operating Officer |
RSU Award |
66,007 |
- |
- |
| 2026-03-01 |
Ederer John |
Chief Financial Officer |
RSU Award |
74,257 |
- |
- |
| 2026-03-09 |
Mcmillan Stephen |
President and CEO |
Other (Sell) |
4,376 |
- |
- |
| 2026-03-06 |
Mcmillan Stephen |
President and CEO |
Tax Withholding of RSU |
22,230 |
$28.02 |
$622.88K |
| 2026-03-01 |
Mcmillan Stephen |
President and CEO |
RSU Award |
206,271 |
- |
- |
| 2026-03-01 |
Rogers Scot Frazier |
Chief Administrative Officer |
RSU Award |
53,630 |
- |
- |
| 2026-03-01 |
Fisher Melissa B |
Director |
RSU Award |
2,475 |
- |
- |
| 2026-03-01 |
Fisher Melissa B |
Director |
Unknown |
- |
- |
- |
| 2026-03-03 |
Petley Richard J |
Chief Revenue Officer |
Tax Withholding of RSU |
13,309 |
$30.36 |
$404.06K |
| 2026-03-03 |
Hutchinson Michael D |
Chief Operating Officer |
Tax Withholding of RSU |
15,208 |
$30.36 |
$461.71K |
| 2026-03-03 |
Mcmillan Stephen |
President and CEO |
Tax Withholding of RSU |
40,319 |
$30.36 |
$1.22M |
| 2026-02-27 |
Petley Richard J |
Chief Revenue Officer |
Tax Withholding of RSU |
2,899 |
$31.49 |
$91.29K |
| 2026-02-27 |
Hutchinson Michael D |
Chief Operating Officer |
Tax Withholding of RSU |
5,052 |
$31.49 |
$159.09K |
| 2026-02-27 |
Mcmillan Stephen |
President and CEO |
Tax Withholding of RSU |
20,090 |
$31.49 |
$632.63K |
| 2026-02-26 |
Mcmillan Stephen |
President and CEO |
Informative Sell |
50,000 |
$30.26 |
$1.51M |
| 2026-02-24 |
Gianoni Michael P |
Director |
Informative Sell |
25,000 |
$29.97 |
$749.13K |
| 2026-02-11 |
Arora Sumeet |
Chief Product Officer |
Tax Withholding of RSU |
6,831 |
$37.88 |
$258.76K |
| 2026-02-11 |
Petley Richard J |
Chief Revenue Officer |
Tax Withholding of RSU |
10,589 |
$37.88 |
$401.11K |
| 2026-02-11 |
Hutchinson Michael D |
Chief Operating Officer |
Tax Withholding of RSU |
12,591 |
$37.88 |
$476.95K |
| 2026-02-11 |
Ederer John |
Chief Financial Officer |
Tax Withholding of RSU |
6,418 |
$37.88 |
$243.11K |
| 2026-02-11 |
Lynrock Lake Lp |
10 Percent Owner |
Informative Sell |
10,669 |
$41.19 |
$439.47K |
