Teradata Corp
TDC- Exchange
- NYSE
- Industry
- Services-Prepackaged Software
- SEC CIK
- 0000816761
In the last 90 days, Teradata Corp insiders filed 0 open-market purchases and 3 sales; 482 institutions reported holding it in 13F filings for Q2 2026, worth $4.23B in total; no superinvestor holds it.
Holders of 5% or more of TDC
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Teradata Corp, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 16.00%15.1M shares | +2.70 ppfrom 13.30% | Apr 17, 20252 filings | Jul 30, 2026 | SEC |
| Vanguard Portfolio Management LLC | 13G/A | 10.61%9.99M shares | +0.82 ppfrom 9.79% | Apr 29, 20262 filings | Jul 7, 2026 | SEC |
| Lynrock Lake LP | 13D/A | 6.60%6.21M shares | −1.00 ppfrom 7.60% | Feb 14, 20237 filings | Jul 8, 2026 | SEC |
| Vanguard Capital Management LLC | 13G | 5.12%4.82M shares | New | Jul 31, 20261 filing | Jul 31, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
41 Schedule 13D and 13G filings on Teradata Corp, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Nov 13, 20268:44 AM ET | AQR Capital Management LLCand 1 other | 13G/A | 1.49%1.39M shares | −3.60 ppfrom 5.09%Below 5% | Sep 30, 2026 | SEC |
| Aug 12, 202612:48 PM ET | AQR Capital Management LLCand 1 other | 13G | 5.09%4.79M shares | New | Jun 30, 2026 | SEC |
| Jul 31, 202610:43 AM ET | Vanguard Capital Management LLC | 13G | 5.12%4.82M shares | New | Jun 30, 2026 | SEC |
| Jul 30, 202611:18 AM ET | BlackRock, Inc. | 13G/A | 16.00%15.1M shares | +2.70 ppfrom 13.30% | Jun 30, 2026 | SEC |
| Jul 8, 20266:41 PM ET | Lynrock Lake LPand 2 others | 13D/A | 6.60%6.21M shares | −1.00 ppfrom 7.60% | Jul 6, 2026 | SEC |
| Jul 7, 20262:14 PM ET | Vanguard Portfolio Management LLC | 13G/A | 10.61%9.99M shares | +0.82 ppfrom 9.79% | Jun 30, 2026 | SEC |
| Jun 17, 20267:54 PM ET | Lynrock Lake LPand 2 others | 13D/A | 7.60%7.19M shares | −2.40 ppfrom 10.00% | Jun 15, 2026 | SEC |
| Apr 29, 20263:47 PM ET | Vanguard Portfolio Management LLC | 13G | 9.79%9.27M shares | New | Mar 31, 2026 | SEC |
| Mar 27, 20261:34 PM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | –Below 5% | Mar 13, 2026 | SEC |
| Feb 12, 20269:04 PM ET | Lynrock Lake LPand 2 others | 13D/A | 10.00%9.35M shares | +0.10 ppfrom 9.90% | Feb 10, 2026 | SEC |
| Aug 14, 202510:08 AM ET | Ameriprise Financial Incand 1 other | 13G/A | 4.80%4.56M shares | –Below 5% | Jun 30, 2025 | SEC |
| Apr 17, 20259:35 AM ET | BlackRock, Inc. | 13G/A | 13.30%12.8M shares | – | Mar 31, 2025 | SEC |
| Mar 21, 20259:09 AM ET | Lynrock Lake LPand 2 others | 13D | 9.90%9.42M shares | – | Mar 14, 2025 | SEC |
| Nov 14, 2024 | Lynrock Lake LP | 13G/AOld format | – | – | – | SEC |
| Nov 12, 2024 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Nov 4, 2024 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2024 | Ameriprise Financial Inc | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2024 | Lynrock Lake LP | 13G/AOld format | – | – | – | SEC |
| Feb 13, 2024 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Jan 24, 20249:46 AM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2023 | Ameriprise Financial Inc | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2023 | Lynrock Lake LP | 13GOld format | – | New | – | SEC |
| Feb 9, 2023 | First Eagle Investment Management, LLC | 13G/AOld format | – | – | – | SEC |
| Feb 9, 2023 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 6, 2023 | Wellington Management Group LLP | 13G/AOld format | – | – | – | SEC |
| Jan 23, 20233:52 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Nov 1, 2022 | First Eagle Investment Management, LLC | 13G/AOld format | – | – | – | SEC |
| Sep 8, 20221:43 PM ET | BlackRock Inc. | 13GOld format | – | – | – | SEC |
| Feb 14, 2022 | Ameriprise Financial Inc | 13G/AOld format | – | – | – | SEC |
| Feb 11, 2022 | Hartford Mutual Funds Inc | 13GOld format | – | – | – | SEC |
| Feb 10, 2022 | First Eagle Investment Management, LLC | 13G/AOld format | – | – | – | SEC |
| Feb 10, 2022 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 4, 2022 | Wellington Management Group LLP | 13G/AOld format | – | – | – | SEC |
| Feb 1, 20225:08 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Apr 12, 2021 | Wellington Management Group LLP | 13G/AOld format | – | – | – | SEC |
| Feb 12, 2021 | Ameriprise Financial Inc | 13G/AOld format | – | – | – | SEC |
| Feb 10, 2021 | First Eagle Investment Management, LLC | 13G/AOld format | – | – | – | SEC |
| Feb 10, 2021 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 9, 2021 | Hartford Mutual Funds Inc | 13GOld format | – | New | – | SEC |
| Feb 4, 2021 | Wellington Management Group LLP | 13G/AOld format | – | – | – | SEC |
| Feb 1, 20218:23 AM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
Form 144: proposed insider sales
51 notices from officers, directors and other affiliates planning to sell Teradata Corp shares, newest first.
| Filed (ET) | Seller | Shares to sell | Market value | Planned sale | Broker | Filing |
|---|---|---|---|---|---|---|
| Nov 9, 20264:35 PM ET | Stephen McMillanDirector · Officer | 10.0K | $318.0K | Nov 9, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Sep 15, 20264:34 PM ET | Stephen McMillanDirector · Officer | 10.0K | $293.7K | Sep 15, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Sep 15, 202612:41 PM ET | Hutchinson Michael DOfficer | 48.1K | $1.44M | Sep 15, 202610b5-1 | Fidelity Brokerage Services LLC | SEC |
| Jun 8, 20262:26 PM ET | Chou Timothy C KDirector | 5.66K | $190.8K | Jun 8, 202610b5-1 | Fidelity Brokerage Services LLC | SEC |
| Jun 1, 20263:19 PM ET | Petley Richard JOfficer | 17.2K | $603.0K | Jun 1, 202610b5-1 | Fidelity Brokerage Services LLC | SEC |
| May 22, 20264:05 PM ET | McElhatton ToddDirector | 15.0K | $502.0K | May 22, 2026 | Fidelity Brokerage Services LLC | SEC |
| May 19, 20269:38 AM ET | Arora SumeetOfficer | 15.0K | $495.0K | May 19, 202610b5-1 | Fidelity Brokerage Services LLC | SEC |
| May 12, 20264:25 PM ET | Stephen McMillanOfficer | 20.0K | $634.2K | May 12, 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| May 7, 202612:54 PM ET | Arora SumeetOfficer | 2.65K | $81.6K | May 7, 202610b5-1 | Fidelity Brokerage Services LLC | SEC |
| May 7, 202612:05 PM ET | Petley Richard JOfficer | 34.3K | $1.06M | May 7, 202610b5-1 | Fidelity Brokerage Services LLC | SEC |
| Feb 26, 20264:17 PM ET | Stephen McMillanOfficer | 50.0K | $1.51M | Feb 26, 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Feb 24, 20261:27 PM ET | Gianoni Michael PDirector | 25.0K | $749.1K | Feb 24, 2026 | Fidelity Brokerage Services LLC | SEC |
| Feb 11, 20269:22 PM ET | Lynrock Lake Master Fund LP10% stockholder | 62.0K | $1.81M | Feb 11, 2026 | Jefferies LLC | SEC |
| Aug 27, 20254:30 PM ET | Treese Margaret AOfficer | 75.1K | $1.58M | Aug 27, 2025 | Fidelity Brokerage Services LLC | SEC |
| May 22, 202510:01 AM ET | Chou Timothy C KDirector | 6.22K | $135.7K | May 22, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Mar 10, 20251:53 PM ET | Bramley ClaireOfficer | 35.5K | $821.7K | Mar 10, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Mar 7, 202510:26 AM ET | Cullen-Cote Kathleen ROfficer | 1.75K | $40.2K | Mar 7, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Mar 4, 20254:21 PM ET | Ashton HillaryFormer officer | 28.3K | $658.0K | Mar 4, 2025 | Fidelity Brokerage Services LLC | SEC |
| Mar 4, 202510:38 AM ET | Cullen-Cote Kathleen ROfficer | 1.88K | $43.6K | Mar 4, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Mar 3, 20251:12 PM ET | Cullen-Cote Kathleen ROfficer | 5.96K | $142.1K | Mar 3, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Feb 28, 202510:46 AM ET | Cullen-Cote Kathleen ROfficer | 2.35K | $55.0K | Feb 28, 202510b5-1 | Fidelity Brokerage Services LLC | SEC |
| Nov 8, 20244:48 PM ET | Stephen McMillanDirector · Officer | 20.0K | $586.2K | Nov 8, 202410b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Nov 7, 20245:44 PM ET | Ashton HillaryOfficer | 54.6K | $1.59M | Nov 7, 2024 | Fidelity Brokerage Services LLC | SEC |
| Sep 10, 20244:09 PM ET | Ashton HillaryOfficer | 15.0K | $411.9K | Sep 10, 2024 | Fidelity Brokerage Services LLC | SEC |
| Sep 10, 202410:47 AM ET | Cullen-Cote Kathleen ROfficer | 7.78K | $214.0K | Sep 10, 202410b5-1 | Fidelity Brokerage Services LLC | SEC |
Showing the latest 25. See the TDC notices from the last 12 months