# EDGAR Filing Document

**Accession Number:** 0001734341
**File Stem:** 0000921895-26-000319
**Filing Date:** 2026-2
**Character Count:** 16987
**Document Hash:** 8540cd0041c652046f71eadc30fc6644
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000921895-26-000319.hdr.sgml**: 20260212

**ACCESSION NUMBER**: 0000921895-26-000319

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260212

**DATE AS OF CHANGE**: 20260212

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** TERADATA CORP /DE/
- **CENTRAL INDEX KEY:** 0000816761
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-PREPACKAGED SOFTWARE [7372]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 753236470
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-39008
- **FILM NUMBER:** 26628507

**BUSINESS ADDRESS:**
- **STREET 1:** 17095 VIA DEL CAMPO
- **CITY:** SAN DIEGO
- **STATE:** CA
- **ZIP:** 92127
- **BUSINESS PHONE:** 866-548-8348

**MAIL ADDRESS:**
- **STREET 1:** 17095 VIA DEL CAMPO
- **CITY:** SAN DIEGO
- **STATE:** CA
- **ZIP:** 92127
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Lynrock Lake LP
- **CENTRAL INDEX KEY:** 0001734341

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**BUSINESS ADDRESS:**
- **STREET 1:** 2 INTERNATIONAL DRIVE
- **STREET 2:** SUITE 130
- **CITY:** RYE BROOK
- **STATE:** NY
- **ZIP:** 10573
- **BUSINESS PHONE:** 914.449.4660

**MAIL ADDRESS:**
- **STREET 1:** 2 INTERNATIONAL DRIVE
- **STREET 2:** SUITE 130
- **CITY:** RYE BROOK
- **STATE:** NY
- **ZIP:** 10573

## Ex-1

Exhibit 1

**<u>Transactions in the Securities of the Issuer During the Past Sixty Days</u>**

---

| | | | | |
|:---|:---|:---|:---|:---|
| &nbsp;&nbsp;Nature of the<br> <u>Transaction</u> | &nbsp;&nbsp; Securities<br> <u>Purchased/(Sold)</u> | &nbsp;&nbsp; Price Per<br> <u>Security($)<sup>\*</sup></u> | &nbsp;&nbsp;<u>Price Range ($)</u> | &nbsp;&nbsp; Date of<br> <u>Purchase/Sale</u> |

---

**<u>LYNROCK LAKE LP<br> (On Behalf of Lynrock Lake Master Fund LP)</u>**

Sale of Common Stock (10,514) 39.5733 39.0000 - 39.9900 02/11/2026 <br> Sale of Common Stock (40,807) 40.2372 40.0000 - 40.9863 02/11/2026 <br> Sale of Common Stock (10,669) 41.1917 41.0000 - 41.5700 02/11/2026

______________________________

<sup>\*</sup> The price reported in column <u>Price Per Security ($)</u> is a weighted average price if a price range is indicated in column <u>Price Range ($)</u>. These securities were sold in multiple transactions at prices between the corresponding price ranges in the applicable row. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price.

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 1)**

**TERADATA CORP /DE/**

*(Name of Issuer)*

**Common Stock, par value $0.01 per share**

*(Title of Class of Securities)*

**88076W103**

*(CUSIP Number)*

**Cynthia Paul**<br>Lynrock Lake LP<br>2 International Drive, Suite 130<br>Rye Brook NY 10573<br>914-449-4660

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**02/10/2026**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **88076W103** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Lynrock Lake LP** | Name of reporting person<br>**Lynrock Lake LP** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**9354676.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**9354676.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**9354676.00** | Aggregate amount beneficially owned by each reporting person<br>**9354676.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**10.0%** | Percent of class represented by amount in Row (11)<br>**10.0%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IA** | Type of Reporting Person (See Instructions)<br>**IA** | |

---

| **CUSIP No.** | **88076W103** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**LYNROCK LAKE PARTNERS LLC** | Name of reporting person<br>**LYNROCK LAKE PARTNERS LLC** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**9354676.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**9354676.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**9354676.00** | Aggregate amount beneficially owned by each reporting person<br>**9354676.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**10.0%** | Percent of class represented by amount in Row (11)<br>**10.0%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**HC** | Type of Reporting Person (See Instructions)<br>**HC** | |

---

| **CUSIP No.** | **88076W103** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Paul Cynthia** | Name of reporting person<br>**Paul Cynthia** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**9354676.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**9354676.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**9354676.00** | Aggregate amount beneficially owned by each reporting person<br>**9354676.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**10.0%** | Percent of class represented by amount in Row (11)<br>**10.0%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Stock, par value $0.01 per share

**(b) Name of Issuer:**
TERADATA CORP /DE/

**(c) Address of Issuer's Principal Executive Offices:**
17095 VIA DEL CAMPO, SAN DIEGO, CA, 92127

The following constitutes Amendment No. 1 ("Amendment No. 1") to the Schedule 13D filed by the undersigned with the Securities and Exchange Commission (the "SEC") on March 21, 2025 (as amended, the "Schedule 13D"). This Amendment No. 1 amends and supplements the Schedule 13D as set forth below. Capitalized terms used herein and not otherwise defined in this Amendment No. 1 have the meanings set forth in the Schedule 13D.

**Item 4. Purpose of Transaction**

Item 4 is hereby amended to add the following:

On February 10, 2026, Lynrock Fund and the Reporting Persons (collectively, the "Stockholder Parties") entered into a Cooperation Agreement (the "Cooperation Agreement") with the Issuer.

Pursuant to the Cooperation Agreement, the Issuer has agreed, as soon as reasonably practicable and by no later than March 1, 2026, to (i) increase the size of the Board from nine to ten directors, and (ii) appoint Melissa Fisher (the "First New Director") to the Board as a Class I director with an initial term expiring at the Issuer's 2026 annual meeting of stockholders (the "2026 Annual Meeting"). The appointment of the First New Director is subject to the successful completion of her independence and eligibility review and onboarding process, as provided in the Cooperation Agreement, including, among other things, receiving a recommendation from the Nominating and Governance Committee (the "Nominating Committee") and approval from the Board (each of which not to be unreasonably withheld). During the term of the Cooperation Agreement, subject to the Stockholder Parties maintaining a certain beneficial ownership threshold, the Stockholder Parties will have certain replacement rights with respect to the First New Director, as provided in the Cooperation Agreement. The Issuer has further agreed to (i) appoint the First New Director to the Nominating Committee, concurrent with her appointment to the Board, and (ii) nominate and recommend the First New Director for election to the Board at the 2026 Annual Meeting.

Pursuant to the terms of the Cooperation Agreement, the Issuer has further agreed that promptly following the 2026 Annual Meeting and in any event by no later than August 1, 2026, the Board will appoint one additional director to the Board as a Class II director (the "Second New Director") with a term expiring at the Issuer's 2027 annual meeting of stockholders (the "2027 Annual Meeting"), after giving due consideration to the Stockholder Parties' feedback regarding the desired profile of candidates and on candidates the Board evaluates for such appointment.

Under the terms of the Cooperation Agreement, the Board has further agreed that one current Class I director will not be nominated for re-election at the 2026 Annual Meeting, and one current Class II director will not be nominated for re-election at the 2027 Annual Meeting. Pursuant to the terms of the Cooperation Agreement, the Issuer has agreed that (i) following the appointment of the First New Director through the conclusion of the 2026 Annual Meeting, the size of the Board shall not be greater than ten (10) members, (ii) from the conclusion of the 2026 Annual Meeting until the appointment of the Second New Director, the size of the Board shall not be greater than nine (9) members, and (iii) from the appointment of the Second New Director until the conclusion of the 2027 Annual Meeting, the size of the Board shall not be greater than ten (10) members. The Issuer has further agreed that immediately following the 2027 Annual Meeting, the size of the Board shall not be greater than nine (9) members.

During the term of the Cooperation Agreement, the Stockholder Parties have agreed to certain customary voting commitments and standstill provisions, subject to certain limited exceptions, as provided in the Cooperation Agreement. During the term of the Cooperation Agreement, the Issuer and the Stockholder Parties have also agreed to certain customary non-disparagement provisions.

The Cooperation Agreement will remain in effect until the earlier of (i) 30 days prior to the first day of the advance notice period for the submission of stockholder nominations for consideration at the 2027 Annual Meeting and (ii) 150 days prior to the one-year anniversary of the 2026 Annual Meeting.

The foregoing description of the Cooperation Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of the Cooperation Agreement, which is attached as Exhibit 99.1 hereto and is incorporated herein by reference.

**Item 5. Interest in Securities of the Issuer**

**(a)**
Item 5(a) is hereby amended and restated to read as follows:

Rows 11 and 13 of each Reporting Person's cover page to this Schedule 13D set forth the aggregate number of shares of Common Stock and percentages of the shares of Common Stock beneficially owned by such Reporting Person and are incorporated by reference. The percentage set forth in each row 13 is based upon 93.2 million shares of the Issuer's Common Stock outstanding as of October 24, 2025, as reported in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on November 5, 2025.

The Reporting Persons' ownership of the Issuer's securities consists of 9,354,676 shares of Common Stock held directly by Lynrock Lake Master Fund LP ("Lynrock Fund"). The Investment Manager is the investment manager of Lynrock Fund, and pursuant to an investment management agreement, the Investment Manager has been delegated full voting and investment power over securities of the Issuer held by Lynrock Fund. Ms. Paul, the Chief Investment Officer of the Investment Manager and Sole Member of the General Partner, the general partner of the Investment Manager, may be deemed to exercise voting and investment power over securities of the Issuer held by Lynrock Fund.

**(b)**
—

**(c)**
Item 5(c) is hereby amended and restated to read as follows:

The transactions in the securities of the Issuer by the Reporting Persons during the past sixty days are set forth in Exhibit 1 and are incorporated herein by reference. All of such transactions were effected in the open market unless otherwise noted therein.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

Item 6 is hereby amended to add the following:

On February 10, 2026, the Stockholder Parties and the Issuer entered into the Cooperation Agreement, as defined and described in Item 4 above and attached hereto as Exhibit 99.1.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Lynrock Lake LP

**Signature:** /s/ Cynthia Paul

**Name/Title:** Cynthia Paul, Sole Member of Lynrock Lake Partners LLC, its General Partner

**Date:** 02/12/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** LYNROCK LAKE PARTNERS LLC

**Signature:** /s/ Cynthia Paul

**Name/Title:** Cynthia Paul, Sole Member

**Date:** 02/12/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Paul Cynthia

**Signature:** /s/ Cynthia Paul

**Name/Title:** Cynthia Paul

**Date:** 02/12/2026