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 2 sales; 479 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 | 13.30%12.8M shares | – | Apr 17, 20251 filing | Apr 17, 2025 | SEC |
| Vanguard Portfolio Management LLC | 13G | 9.79%9.27M shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |
| Lynrock Lake LP | 13D/A | 7.60%7.19M shares | −2.40 ppfrom 10.00% | Mar 21, 20253 filings | Jun 17, 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
7 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 |
|---|---|---|---|---|---|---|
| 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 | New | Mar 14, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Teradata Corp shares.
No Form 144 notices for Teradata Corp are on file.