Teradata TDC Insider Ownership

NYSE TDC
$28.68 +0.14 (+0.47%)
As of: Sep 29, 2026 · 3:59 PM EDT

Insider Holdings by Owner

12.72Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
13.55%
▲+0.026% pp QoQ
Shares Held by Insiders
12.72Mn
filed for Sep 2026
▲+0.19% QoQ
Shares Outstanding
93.90Mn
93,900,000 shares
Direct Holdings
3.37Mn
Indirect: 9.35Mn
Net Shares Traded (QoQ)
+24.48K
net buying in Sep 2026
Insiders Holding Shares
25
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Quarter ending 30 Sep, 2026

As of September 29, 2026, the three largest insider holders of TDC are Lake Lp Lynrock (TenPercentOwner, 9.35Mn shares), Stephen Mcmillan (President And Ceo, 752.45K shares), John Ederer (Chief Financial Officer, 368.43K shares).

Form 4 Holdings

Insiders Holding TDC

Insiders 25
Shares held 12.72Mn
Of outstanding 13.55%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Lake Lp Lynrock TenPercentOwner 0 9,354,676 9,354,676 73.5% 13 Feb, 2026
2 Stephen Mcmillan President And Ceo 752,446 0 752,446 5.9% 17 Sep, 2026
3 John Ederer Chief Financial Officer 368,426 0 368,426 2.9% 20 May, 2026
4 Sumeet Arora Chief Product Officer 250,772 0 250,772 2.0% 20 May, 2026
5 Scot Frazier Rogers Chief Administrative Officer 216,637 0 216,637 1.7% 17 Jun, 2026
6 Richard J Petley Chief Revenue Officer 188,571 0 188,571 1.5% 02 Jun, 2026
7 Michael D Hutchinson Chief Operating Officer 171,927 0 171,927 1.4% 17 Sep, 2026
8 Kathleen R Cullen-Cote Chief People Officer 142,707 0 142,707 1.1% 10 Mar, 2025
9 Margaret A Treese Chief Legal Officer 142,253 0 142,253 1.1% 10 Mar, 2025
10 Todd Cione Chief Revenue Officer 119,422 0 119,422 0.9% 08 Mar, 2024
11 Charles T Smotherman Interim Chief Financial Ofcr 114,618 0 114,618 0.9% 27 Mar, 2025
12 Jacqueline D. Woods Chief Marketing Officer 112,626 0 112,626 0.9% 10 Mar, 2025
13 John Schwarz Director 110,569 0 110,569 0.9% 18 May, 2026
14 Claire Bramley Chief Financial Officer 105,833 0 105,833 0.8% 11 Mar, 2025
15 Lisa R Bacus Director 86,091 0 86,091 0.7% 18 Aug, 2026
16 Cary T Fu Director 84,534 0 84,534 0.7% 12 May, 2022
17 Joanne Beth Olsen Director 69,001 0 69,001 0.5% 18 May, 2026
18 Daniel R Fishback Director 67,522 0 67,522 0.5% 19 May, 2025
19 Hillary Ashton Chief Product Officer 66,772 0 66,772 0.5% 08 Nov, 2024
20 Kimberly K. Nelson Director 64,172 0 64,172 0.5% 18 Aug, 2026
21 Michael P Gianoni Director 42,510 0 42,510 0.3% 18 Aug, 2026
22 Timothy C K Chou Director 39,210 0 39,210 0.3% 10 Jun, 2026
23 Todd Mcelhatton Director 28,862 0 28,862 0.2% 18 Aug, 2026
24 Melissa B Fisher Director 15,800 0 15,800 0.1% 03 Sep, 2026
25 Bernd Leukert Director 8,330 0 8,330 0.1% 04 Aug, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

1,907 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
15 Sep, 2026 Stephen Mcmillan President And Ceo Disposed S 10,000 $30.02 $300.17K 752,446 Direct
15 Sep, 2026 Michael D Hutchinson Chief Operating Officer Disposed S 48,077 $30.00 $1.44Mn 171,927 Direct
01 Sep, 2026 Melissa B Fisher Director Acquired A 619 $0.00 $0 15,456 Direct
01 Sep, 2026 Melissa B Fisher Director Acquired A 344 $0.00 $0 15,800 Direct
14 Aug, 2026 Melissa B Fisher Director Acquired A 2,197 $0.00 $0 14,837 Direct
14 Aug, 2026 Todd Mcelhatton Director Acquired A 2,197 $0.00 $0 28,862 Direct
14 Aug, 2026 Kimberly K. Nelson Director Acquired A 2,197 $0.00 $0 64,172 Direct
14 Aug, 2026 Michael P Gianoni Director Acquired A 2,197 $0.00 $0 42,510 Direct
14 Aug, 2026 Lisa R Bacus Director Acquired A 2,197 $0.00 $0 86,091 Direct
01 Aug, 2026 Bernd Leukert Director Acquired A 8,330 $0.00 $0 8,330 Direct
15 Jun, 2026 Scot Frazier Rogers Chief Administrative Officer Disposed F 10,266 $33.62 $345.14K 229,884 Direct
15 Jun, 2026 Scot Frazier Rogers Chief Administrative Officer Disposed F 13,247 $33.62 $445.36K 216,637 Direct
08 Jun, 2026 Timothy C K Chou Director Disposed S 5,657 $33.72 $190.75K 39,210 Direct
01 Jun, 2026 Richard J Petley Chief Revenue Officer Disposed S 16,237 $35.00 $568.30K 189,561 Direct
01 Jun, 2026 Richard J Petley Chief Revenue Officer Disposed S 990 $35.01 $34.66K 188,571 Direct
22 May, 2026 Todd Mcelhatton Director Disposed S 15,000 $33.47 $502.02K 26,665 Direct
18 May, 2026 John Ederer Chief Financial Officer Disposed F 13,355 $32.77 $437.64K 368,426 Direct
18 May, 2026 Sumeet Arora Chief Product Officer Disposed F 13,553 $32.77 $444.13K 287,899 Direct
18 May, 2026 Sumeet Arora Chief Product Officer Disposed F 22,127 $32.77 $725.10K 265,772 Direct
19 May, 2026 Sumeet Arora Chief Product Officer Disposed S 15,000 $33.00 $495.00K 250,772 Direct