Teradata Corp (TDC)

Over the last 90 days, Teradata Corp. has seen significant insider selling, with a net value of over $1.1 million in sales. Executives contributed substantially to this, with net sales exceeding $634,000. Notably, the CEO and Chief Revenue Officer have been active sellers, with multiple large transactions reported.
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Ticker: TDC Exchange: NYS


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Purchase Sale Planned purchase Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
CHOU TIMOTHY C K
Director
1 sale — total 100,000 USD
Proposed sale 8 Jun 2026
Value US$3,381,838.18 | Price 385.50 | Shares 90,882
Planned sale 1 Jun 2026
Value US$51,527.87 | Price 41.37 | Shares 73,650
Planned sale 1 Jun 2026
Value US$514,642.48 | Price 306.91 | Shares 85,759
Proposed sale 1 Jun 2026
Value US$100,000.00 | Price 35.00 | Shares 1,000
Sale 22 May 2026
Value US$100,000.00 | Price 33.47 | Shares 1,000
Proposed sale 22 May 2026
Value US$100,000.00 | Price 33.47 | Shares 1,000
Planned sale 19 May 2026
Value US$100,000.00 | Price 33.00 | Shares 1,000
Proposed sale 19 May 2026
Value US$495,000.00 | Price 33.00 | Shares 15,000
Sale 12 May 2026
Value US$634,158.00 | Price 31.71 | Shares 20,000
Proposed sale 12 May 2026
Value US$634,158.00 | Price 31.71 | Shares 20,000
Planned sale 7 May 2026
Value US$81,571.80 | Price 30.84 | Shares 2,645
Proposed sale 7 May 2026
Value US$81,571.80 | Price 30.84 | Shares 2,645
Planned sale 7 May 2026
Value US$1,058,336.28 | Price 30.84 | Shares 34,317
Proposed sale 7 May 2026
Value US$1,058,336.28 | Price 30.84 | Shares 34,317
Sale 26 Feb 2026
Value US$1,513,125.00 | Price 30.26 | Shares 50,000
Proposed sale 26 Feb 2026
Value US$1,513,125.00 | Price 30.26 | Shares 50,000
Sale 24 Feb 2026
Value US$749,125.00 | Price 29.97 | Shares 25,000
Proposed sale 24 Feb 2026
Value US$749,125.00 | Price 29.97 | Shares 25,000
Sale 11 Feb 2026
Value US$439,474.25 | Price 41.19 | Shares 10,669
Sale 11 Feb 2026
Value US$1,641,959.42 | Price 40.24 | Shares 40,807
Sale 11 Feb 2026
Value US$416,073.68 | Price 39.57 | Shares 10,514
Proposed sale 11 Feb 2026
Value US$78,599.47 | Price 29.23 | Shares 2,689
Proposed sale 11 Feb 2026
Value US$94,851.35 | Price 29.23 | Shares 3,245
Proposed sale 11 Feb 2026
Value US$81,873.23 | Price 29.23 | Shares 2,801
Proposed sale 11 Feb 2026
Value US$98,212.80 | Price 29.23 | Shares 3,360
Proposed sale 11 Feb 2026
Value US$299,782.88 | Price 29.23 | Shares 10,256
Proposed sale 11 Feb 2026
Value US$70,152.00 | Price 29.23 | Shares 2,400
Proposed sale 11 Feb 2026
Value US$1,088,495.97 | Price 29.23 | Shares 37,239
Proposed sale 27 Aug 2025
Value US$1,580,457.43 | Price 21.06 | Shares 75,060
Planned sale 22 May 2025
Value US$135,695.28 | Price 21.83 | Shares 6,216
Proposed sale 22 May 2025
Value US$135,695.28 | Price 21.83 | Shares 6,216
Sale 10 Mar 2025
Value US$2,352.00 | Price 23.52 | Shares 100
Sale 10 Mar 2025
Value US$452,825.18 | Price 22.83 | Shares 19,839
Sale 10 Mar 2025
Value US$7,050.00 | Price 23.50 | Shares 300
Sale 10 Mar 2025
Value US$347,419.28 | Price 22.82 | Shares 15,225
Proposed sale 10 Mar 2025
Value US$821,700.88 | Price 23.17 | Shares 35,464
Sale 7 Mar 2025
Value US$40,154.40 | Price 22.88 | Shares 1,755
Proposed sale 7 Mar 2025
Value US$40,154.40 | Price 22.88 | Shares 1,755
Sale 4 Mar 2025
Value US$43,563.96 | Price 23.16 | Shares 1,881
Proposed sale 4 Mar 2025
Value US$43,563.96 | Price 23.16 | Shares 1,881
Proposed sale 4 Mar 2025
Value US$657,982.62 | Price 23.22 | Shares 28,341
Planned sale 3 Mar 2025
Value US$142,145.85 | Price 23.87 | Shares 5,955
Proposed sale 3 Mar 2025
Value US$142,146.45 | Price 23.87 | Shares 5,955
Planned sale 28 Feb 2025
Value US$55,036.67 | Price 23.39 | Shares 2,353
Proposed sale 28 Feb 2025
Value US$55,036.67 | Price 23.39 | Shares 2,353
Proposed sale 8 Nov 2024
Value US$586,200.00 | Price 29.31 | Shares 20,000
Sale 8 Nov 2024
Value US$600,086.00 | Price 30.00 | Shares 20,000
Sale 7 Nov 2024
Value US$1,589,096.39 | Price 29.10 | Shares 54,610
Proposed sale 7 Nov 2024
Value US$1,589,138.39 | Price 29.10 | Shares 54,610
Sale 10 Sep 2024
Value US$411,903.86 | Price 27.53 | Shares 14,962
Proposed sale 10 Sep 2024
Value US$411,904.03 | Price 27.53 | Shares 14,962
Sale 10 Sep 2024
Value US$214,000.29 | Price 27.51 | Shares 7,779
Proposed sale 10 Sep 2024
Value US$214,000.29 | Price 27.51 | Shares 7,779
Sale 29 Aug 2024
Value US$156,777.50 | Price 28.51 | Shares 5,500
Proposed sale 29 Aug 2024
Value US$156,777.50 | Price 28.51 | Shares 5,500
Sale 13 Aug 2024
Value US$251,177.02 | Price 25.94 | Shares 9,683
Proposed sale 13 Aug 2024
Value US$251,177.02 | Price 25.94 | Shares 9,683
Sale 24 May 2024
Value US$3,274.00 | Price 32.74 | Shares 100
Sale 24 May 2024
Value US$316,206.00 | Price 31.94 | Shares 9,900
Proposed sale 24 May 2024
Value US$653,200.00 | Price 32.66 | Shares 20,000
Sale 20 May 2024
Value US$212,462.01 | Price 33.43 | Shares 6,356
Proposed sale 20 May 2024
Value US$212,464.32 | Price 33.43 | Shares 6,356
Sale 9 May 2024
Value US$609,797.00 | Price 32.96 | Shares 18,500
Proposed sale 9 May 2024
Value US$609,792.86 | Price 32.96 | Shares 18,500
Proposed sale 8 May 2024
Value US$2,065,985.79 | Price 32.82 | Shares 62,945
Sale 7 Mar 2024
Value US$51,753.60 | Price 38.34 | Shares 1,350
Proposed sale 7 Mar 2024
Value US$51,753.33 | Price 38.34 | Shares 1,350
Sale 6 Mar 2024
Value US$167,223.78 | Price 38.67 | Shares 4,324
Sale 6 Mar 2024
Value US$113,782.77 | Price 38.62 | Shares 2,946
Proposed sale 6 Mar 2024
Value US$167,223.78 | Price 38.67 | Shares 4,324
Proposed sale 6 Mar 2024
Value US$111,093.66 | Price 37.71 | Shares 2,946
Proposed sale 5 Mar 2024
Value US$990,567.50 | Price 37.70 | Shares 26,275
Planned sale 5 Mar 2024
Value US$987,230.58 | Price 37.57 | Shares 26,275
Planned sale 4 Mar 2024
Value US$178,139.55 | Price 38.55 | Shares 4,621
Proposed sale 4 Mar 2024
Value US$178,139.55 | Price 38.55 | Shares 4,621
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2026-06-08 2026-06-08 PrS Proposed sale

Director

Non-Executive Director
90,882
385.50
US$3,381,838
90,882 385.50 US$3,381,838
2026-06-02 2026-06-01 PlS Planned sale

Chief Revenue Officer

Officer
73,650 +21.4%
41.37
US$51,528
73,650 +21.4% 41.37 US$51,528
2026-06-02 2026-06-01 PlS Planned sale

Chief Revenue Officer

Officer
85,759 +26.3%
306.91
US$514,642
85,759 +26.3% 306.91 US$514,642
2026-06-01 2026-06-01 PrS Proposed sale

Officer

Officer
1,000
35.00
US$100,000
1,000 35.00 US$100,000
2026-05-26 2026-05-22 S Sale Non-Executive Director
1,000 -36.0%
33.47
US$100,000
1,000 -36.0% 33.47 US$100,000
2026-05-22 2026-05-22 PrS Proposed sale

Director

Non-Executive Director
1,000
33.47
US$100,000
1,000 33.47 US$100,000
2026-05-20 2026-05-19 PlS Planned sale

Chief Product Officer

Officer
1,000 -5.6%
33.00
US$100,000
1,000 -5.6% 33.00 US$100,000
2026-05-19 2026-05-19 PrS Proposed sale

Officer

Officer
15,000
33.00
US$495,000
15,000 33.00 US$495,000
2026-05-13 2026-05-12 S Sale

President and CEO

Executive Director
20,000 -2.6%
31.71
US$634,158
20,000 -2.6% 31.71 US$634,158
2026-05-12 2026-05-12 PrS Proposed sale

Officer

Officer
20,000
31.71
US$634,158
20,000 31.71 US$634,158
2026-05-08 2026-05-07 PlS Planned sale

Chief Product Officer

Officer
2,645 -0.9%
30.84
US$81,572
2,645 -0.9% 30.84 US$81,572
2026-05-08 2026-05-07 PlS Planned sale

Chief Revenue Officer

Officer
34,317 -14.2%
30.84
US$1,058,336
34,317 -14.2% 30.84 US$1,058,336
2026-05-07 2026-05-07 PrS Proposed sale

Officer

Officer
2,645
30.84
US$81,572
2,645 30.84 US$81,572
2026-05-07 2026-05-07 PrS Proposed sale

Officer

Officer
34,317
30.84
US$1,058,336
34,317 30.84 US$1,058,336
2026-02-27 2026-02-26 S Sale

President and CEO

Executive Director
50,000 -7.0%
30.26
US$1,513,125
50,000 -7.0% 30.26 US$1,513,125
2026-02-26 2026-02-26 PrS Proposed sale

Officer

Officer
50,000
30.26
US$1,513,125
50,000 30.26 US$1,513,125
2026-02-25 2026-02-24 S Sale Non-Executive Director
25,000 -44.2%
29.97
US$749,125
25,000 -44.2% 29.97 US$749,125
2026-02-24 2026-02-24 PrS Proposed sale

Director

Non-Executive Director
25,000
29.97
US$749,125
25,000 29.97 US$749,125
2026-02-13 2026-02-11 S Sale Large shareholder
10,669 -0.1%
41.19
US$439,474
10,669 -0.1% 41.19 US$439,474
2026-02-13 2026-02-11 S Sale Large shareholder
40,807 -0.4%
40.24
US$1,641,959
40,807 -0.4% 40.24 US$1,641,959
2026-02-13 2026-02-11 S Sale Large shareholder
10,514 -0.1%
39.57
US$416,074
10,514 -0.1% 39.57 US$416,074
2026-02-11 2026-02-11 PrS Proposed sale

10% Stockholder

Large shareholder
2,689
29.23
US$78,599
2,689 29.23 US$78,599
2026-02-11 2026-02-11 PrS Proposed sale

10% Stockholder

Large shareholder
3,245
29.23
US$94,851
3,245 29.23 US$94,851
2026-02-11 2026-02-11 PrS Proposed sale

10% Stockholder

Large shareholder
2,801
29.23
US$81,873
2,801 29.23 US$81,873
2026-02-11 2026-02-11 PrS Proposed sale

10% Stockholder

Large shareholder
3,360
29.23
US$98,213
3,360 29.23 US$98,213
2026-02-11 2026-02-11 PrS Proposed sale

10% Stockholder

Large shareholder
10,256
29.23
US$299,783
10,256 29.23 US$299,783
2026-02-11 2026-02-11 PrS Proposed sale

10% Stockholder

Large shareholder
2,400
29.23
US$70,152
2,400 29.23 US$70,152
2026-02-11 2026-02-11 PrS Proposed sale

10% Stockholder

Large shareholder
37,239
29.23
US$1,088,496
37,239 29.23 US$1,088,496
2025-08-27 2025-08-27 PrS Proposed sale

Officer

Officer
75,060
21.06
US$1,580,457
75,060 21.06 US$1,580,457
2025-05-27 2025-05-22 PlS Planned sale Non-Executive Director
6,216 -14.7%
21.83
US$135,695
6,216 -14.7% 21.83 US$135,695
2025-05-22 2025-05-22 PrS Proposed sale

Director

Non-Executive Director
6,216
21.83
US$135,695
6,216 21.83 US$135,695
2025-03-11 2025-03-10 S Sale

Chief Financial Officer

Officer
100 -0.1%
23.52
US$2,352
100 -0.1% 23.52 US$2,352
2025-03-11 2025-03-10 S Sale

Chief Financial Officer

Officer
19,839 -15.8%
22.83
US$452,825
19,839 -15.8% 22.83 US$452,825
2025-03-11 2025-03-10 S Sale

Chief Financial Officer

Officer
300 -0.2%
23.50
US$7,050
300 -0.2% 23.50 US$7,050
2025-03-11 2025-03-10 S Sale

Chief Financial Officer

Officer
15,225 -10.8%
22.82
US$347,419
15,225 -10.8% 22.82 US$347,419
2025-03-10 2025-03-10 PrS Proposed sale

Officer

Officer
35,464
23.17
US$821,701
35,464 23.17 US$821,701
2025-03-10 2025-03-07 S Sale

Chief People Officer

Officer
1,755 -1.2%
22.88
US$40,154
1,755 -1.2% 22.88 US$40,154
2025-03-07 2025-03-07 PrS Proposed sale

Officer

Officer
1,755
22.88
US$40,154
1,755 22.88 US$40,154
2025-03-05 2025-03-04 S Sale

Chief People Officer

Officer
1,881 -1.3%
23.16
US$43,564
1,881 -1.3% 23.16 US$43,564
2025-03-04 2025-03-04 PrS Proposed sale

Former Officer

Officer
28,341
23.22
US$657,983
28,341 23.22 US$657,983
2025-03-04 2025-03-04 PrS Proposed sale

Officer

Officer
1,881
23.16
US$43,564
1,881 23.16 US$43,564
2025-03-04 2025-03-03 PlS Planned sale

Chief People Officer

Officer
5,955 -5.2%
23.87
US$142,146
5,955 -5.2% 23.87 US$142,146
2025-03-03 2025-03-03 PrS Proposed sale

Officer

Officer
5,955
23.87
US$142,146
5,955 23.87 US$142,146
2025-03-04 2025-02-28 PlS Planned sale

Chief People Officer

Officer
2,353 -2.0%
23.39
US$55,037
2,353 -2.0% 23.39 US$55,037
2025-02-28 2025-02-28 PrS Proposed sale

Officer

Officer
2,353
23.39
US$55,037
2,353 23.39 US$55,037
2024-11-08 2024-11-08 PrS Proposed sale

Director; Officer

Executive Director
20,000
29.31
US$586,200
20,000 29.31 US$586,200
2024-11-08 2024-11-08 S Sale

President and CEO

Executive Director
20,000 -5.1%
30.00
US$600,086
20,000 -5.1% 30.00 US$600,086
2024-11-08 2024-11-07 S Sale

Chief Product Officer

Officer
54,610 -45.0%
29.10
US$1,589,096
54,610 -45.0% 29.10 US$1,589,096
2024-11-07 2024-11-07 PrS Proposed sale

Officer

Officer
54,610
29.10
US$1,589,138
54,610 29.10 US$1,589,138
2024-09-11 2024-09-10 S Sale

Chief Product Officer

Officer
14,962 -11.0%
27.53
US$411,904
14,962 -11.0% 27.53 US$411,904
2024-09-11 2024-09-10 S Sale

Chief People Officer

Officer
7,779 -6.8%
27.51
US$214,000
7,779 -6.8% 27.51 US$214,000
2024-09-10 2024-09-10 PrS Proposed sale

Officer

Officer
14,962
27.53
US$411,904
14,962 27.53 US$411,904
2024-09-10 2024-09-10 PrS Proposed sale

Officer

Officer
7,779
27.51
US$214,000
7,779 27.51 US$214,000
2024-09-03 2024-08-29 S Sale

Chief Legal Officer

Officer
5,500 -5.4%
28.51
US$156,778
5,500 -5.4% 28.51 US$156,778
2024-08-29 2024-08-29 PrS Proposed sale

Officer

Officer
5,500
28.51
US$156,778
5,500 28.51 US$156,778
2024-08-14 2024-08-13 S Sale

Chief People Officer

Officer
9,683 -7.8%
25.94
US$251,177
9,683 -7.8% 25.94 US$251,177
2024-08-13 2024-08-13 PrS Proposed sale

Officer

Officer
9,683
25.94
US$251,177
9,683 25.94 US$251,177
2024-05-29 2024-05-24 S Sale

President and CEO

Executive Director
100 -0.0%
32.74
US$3,274
100 -0.0% 32.74 US$3,274
2024-05-29 2024-05-24 S Sale

President and CEO

Executive Director
9,900 -2.5%
31.94
US$316,206
9,900 -2.5% 31.94 US$316,206
2024-05-24 2024-05-24 PrS Proposed sale

Director; Officer

Executive Director
20,000
32.66
US$653,200
20,000 32.66 US$653,200
2024-05-21 2024-05-20 S Sale Non-Executive Director
6,356 -17.1%
33.43
US$212,462
6,356 -17.1% 33.43 US$212,462
2024-05-20 2024-05-20 PrS Proposed sale

Director

Non-Executive Director
6,356
33.43
US$212,464
6,356 33.43 US$212,464
2024-05-10 2024-05-09 S Sale

Chief Customer Officer

Officer
18,500 -25.1%
32.96
US$609,797
18,500 -25.1% 32.96 US$609,797
2024-05-09 2024-05-09 PrS Proposed sale

Officer

Officer
18,500
32.96
US$609,793
18,500 32.96 US$609,793
2024-05-08 2024-05-08 PrS Proposed sale

Former Officer

Officer
62,945
32.82
US$2,065,986
62,945 32.82 US$2,065,986
2024-03-08 2024-03-07 S Sale

Chief Marketing Officer

Officer
1,350 -1.7%
38.34
US$51,754
1,350 -1.7% 38.34 US$51,754
2024-03-07 2024-03-07 PrS Proposed sale

Officer

Officer
1,350
38.34
US$51,753
1,350 38.34 US$51,753
2024-03-08 2024-03-06 S Sale

Chief Marketing Officer

Officer
4,324 -5.1%
38.67
US$167,224
4,324 -5.1% 38.67 US$167,224
2024-03-08 2024-03-06 S Sale

Chief Marketing Officer

Officer
2,946 -3.3%
38.62
US$113,783
2,946 -3.3% 38.62 US$113,783
2024-03-06 2024-03-06 PrS Proposed sale

Affiliate

2,946
37.71
US$111,094
2,946 37.71 US$111,094
2024-03-06 2024-03-06 PrS Proposed sale

Officer

Officer
4,324
38.67
US$167,224
4,324 38.67 US$167,224
2024-03-05 2024-03-05 PrS Proposed sale

Officer

Officer
26,275
37.70
US$990,568
26,275 37.70 US$990,568
2024-03-05 2024-03-05 PlS Planned sale

Chief People Officer

Officer
26,275 -17.1%
37.57
US$987,231
26,275 -17.1% 37.57 US$987,231
2024-03-05 2024-03-04 PlS Planned sale

Chief Product Officer

Officer
4,621 -3.1%
38.55
US$178,140
4,621 -3.1% 38.55 US$178,140
2024-03-04 2024-03-04 PrS Proposed sale

Officer

Officer
4,621
38.55
US$178,140
4,621 38.55 US$178,140