Form 4: MCMILLAN STEPHEN reports multiple insider transactions in TDC

Rhea-AI Filing Summary

MCMILLAN STEPHEN reported multiple insider transaction types in a Form 4 filing for TDC. The filing lists transactions totaling 338,999 shares at a weighted average price of $37.88 per share. Following the reported transactions, holdings were 700,527 shares.

Insider Trade Summary

4 transactions reported

Mixed 4 txns

Insider MCMILLAN STEPHEN

Role President and CEO

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	141,402	$0.00	--
Tax Withholding	Common Stock	74,121	$37.88	$2.81M
Grant/Award	Common Stock	105,130	$0.00	--
Tax Withholding	Common Stock	18,346	$37.88	$695K

Holdings After Transaction: Common Stock — 700,527 shares (Direct)

Footnotes (1)

1. Acquisition of performance-based restricted share unit award based on the attainment of certain performance goals by the issuer. Shares withheld by the company to satisfy tax obligation upon vesting of performance-based restricted share units.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

MCMILLAN STEPHEN

(Last) (First) (Middle)

C/O TERADATA CORPORATION

17095 VIA DEL CAMPO

(Street)

SAN DIEGO CA 92127

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
TERADATA CORP /DE/ [ TDC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and CEO

3. Date of Earliest Transaction (Month/Day/Year)
02/11/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/11/2026		A		141,402(1)	A	$0	700,527	D
Common Stock	02/11/2026		F		74,121(2)	D	$37.88	626,406	D
Common Stock	02/11/2026		A		105,130(1)	A	$0	731,536	D
Common Stock	02/11/2026		F		18,346(2)	D	$37.88	713,190	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Acquisition of performance-based restricted share unit award based on the attainment of certain performance goals by the issuer.

2. Shares withheld by the company to satisfy tax obligation upon vesting of performance-based restricted share units.

Remarks:

	/s/ Juliet C. Shadoan, Attorney-in-fact for Stephen McMillan	02/13/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did TDC CEO Stephen McMillan report on February 11, 2026?

Stephen McMillan reported equity compensation-related transactions on February 11, 2026. He received two grants totaling 246,532 Teradata common shares and had shares withheld to cover taxes upon vesting of performance-based restricted share units, reflecting routine executive compensation activity.

How many Teradata (TDC) shares did the CEO acquire through grants?

Stephen McMillan acquired 141,402 and 105,130 Teradata common shares at $0 per share. These were performance-based restricted share unit awards granted upon attainment of specified company performance goals, rather than open-market purchases of stock.

Why were some of Stephen McMillan’s Teradata (TDC) shares disposed of at $37.88?

Blocks of 74,121 and 18,346 Teradata shares were disposed of at $37.88 per share. The filing states these shares were withheld by the company to satisfy tax obligations triggered when performance-based restricted share units vested, not discretionary market sales.

How many Teradata (TDC) shares does the CEO own after these transactions?

Following the reported February 11, 2026 transactions, Stephen McMillan directly beneficially owned 713,190 shares of Teradata common stock. This figure reflects the net position after both the performance-based share grants and the share dispositions used to cover associated tax liabilities.

Are Stephen McMillan’s Teradata (TDC) Form 4 transactions open-market buys or sells?

The transactions are described as grants and tax-withholding dispositions, not open-market buys or sells. Shares were awarded at $0 under performance-based restricted share unit programs and some were withheld at $37.88 to satisfy tax obligations on vesting.