Under Armour CAO uses 3,568 shares for tax/exercise

Under Armour, Inc. (UA) reported an insider transaction by Chief Accounting Officer Eric J. Aumen involving Class C Common Stock.

Rhea-AI Filing Summary

Under Armour, Inc. (UA) reported an insider transaction by Chief Accounting Officer Eric J. Aumen involving Class C Common Stock. On 2026-08-15, Aumen disposed of 3,568 shares of Class C Common Stock in a transaction coded "F," representing shares delivered or withheld for payment of exercise price or tax liability. Following this transaction, he directly holds 141,194.1043 shares of Class C Common Stock. A related footnote states that the holdings include shares purchased through the Under Armour, Inc. Employee Stock Purchase Plan, and it is noted that no Class A Common Stock (UAA) is beneficially owned.

Insider Trade Summary

Exercise Price or Tax Liability: 3,568 shares

Exercise Price or Tax Liability 1 txn

Insider Aumen Eric J

Role Chief Accounting Officer

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Class C Common Stock F1	3,568	$0.00	$0.00

Holdings After Transaction: Class C Common Stock — 141,194.1043 shares (Direct)

Footnotes (1)

1. F1. Includes shares purchased through the Under Armour, Inc. Employee Stock Purchase Plan.

Key Figures

Shares delivered/withheld (code F): 3,568 shares Price per share in F transaction: $0.0000 Shares held after transaction: 141,194.1043 shares +1 more

4 metrics

Shares delivered/withheld (code F) 3,568 shares Class C Common Stock used for payment of exercise price or tax liability on 2026-08-15

Price per share in F transaction $0.0000 Reported transaction price per share for the 3,568 Class C shares

Shares held after transaction 141,194.1043 shares Directly owned Class C Common Stock following the 2026-08-15 transaction

Exercise-price-or-tax-liability shares count 3,568 shares Exercise price or tax liability paid by delivering or withholding securities per transactionSummary

Key Terms

Class C Common Stock, Employee Stock Purchase Plan, beneficially owned, Rule 10b5-1

4 terms

Class C Common Stock financial

"The security involved in the transaction is described as "Class C Common Stock""

A class C common stock is a type of company share that usually represents ownership but often carries limited or no voting power compared with other share classes. For investors, that matters because it can affect influence over company decisions and sometimes the stock’s price or dividend priority — think of it as owning a ticket to the same event but in a section with less say in how the event is run.

Employee Stock Purchase Plan financial

"Footnote states holdings include shares purchased through the Employee Stock Purchase Plan"

An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.

beneficially owned financial

"Remark notes that no Class A Common Stock (UAA) is beneficially owned"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Rule 10b5-1 regulatory

"aff_10b5_one flag reflects the Rule 10b5-1 trading plan checkbox status"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Under Armour (UA) report for Eric J. Aumen?

Under Armour reported that Chief Accounting Officer Eric J. Aumen disposed of 3,568 shares of Class C Common Stock on 2026-08-15 in a code "F" transaction, meaning shares were delivered or withheld to cover exercise price or tax liability.

How many Under Armour (UA) Class C shares does Eric J. Aumen hold after this Form 4 transaction?

After the reported transaction, Eric J. Aumen directly holds 141,194.1043 shares of Under Armour Class C Common Stock. This figure includes shares purchased through the company’s Employee Stock Purchase Plan, according to the filed footnote.

What does the code "F" mean in Eric J. Aumen’s Form 4 for Under Armour (UA)?

The code "F" indicates payment of exercise price or tax liability by delivering or withholding securities. In this case, 3,568 Class C shares were used for that purpose, rather than representing an ordinary open-market buy or sell.

Does Eric J. Aumen beneficially own any Under Armour (UAA) Class A Common Stock?

The filing explicitly states that no Class A Common Stock (UAA) is beneficially owned by Eric J. Aumen. His reported holdings after the transaction consist solely of Class C Common Stock shares.

Was Eric J. Aumen’s Under Armour (UA) transaction made under a Rule 10b5-1 trading plan?

The document-level Rule 10b5-1 checkbox is not affirmed (false), indicating this transaction was not reported as being made pursuant to a Rule 10b5-1 trading plan, based on the filing’s representation.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/18/2026 - 05:02 PM Accepted by SEC EDGAR 08/18/2026 - 05:01 PM Learn about SEC filing dates

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^*

Aumen Eric J

(Last) (First) (Middle)

101 PERFORMANCE DRIVE

(Street)

BALTIMORE MARYLAND 21230

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Under Armour, Inc. [ UA ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Accounting Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/15/2026

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

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

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

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
Class C Common Stock(1)	08/15/2026		F		3,568	D	$0	141,194.1043	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. Includes shares purchased through the Under Armour, Inc. Employee Stock Purchase Plan.

Remarks:

No Class A Common Stock (UAA) is beneficially owned.

	/s/ Mehri F. Shadman, Attorney in- Fact for Eric J. Aumen	08/18/2026
	** 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.
* Form 4: SEC 1474 (03-26)