Radian director vests 4,837 RSUs, minimal withholding

Radian Group director Lisa Mumford reported routine equity compensation activity involving restricted stock units (RSUs).

Rhea-AI Filing Summary

Radian Group director Lisa Mumford reported routine equity compensation activity involving restricted stock units (RSUs). On May 15, 2026, 4,837 time-based RSUs granted on May 21, 2025 vested, converting into 4,837 shares of common stock. Each RSU represented a contingent right to receive one share.

In connection with this vesting, 4 shares of common stock were withheld by the company at $36.93 per share to satisfy state tax withholding obligations, a non-market disposition. After these transactions, Mumford directly holds 27,162 shares of Radian Group common stock.

Insights

Equity compensation analyst

Radian director’s Form 4 shows routine RSU vesting with minimal tax withholding.

The filing reflects standard equity compensation mechanics rather than discretionary trading. Lisa Mumford’s 4,837 restricted stock units vested into an equal number of common shares, consistent with a one-for-one RSU structure under the company’s equity compensation plan.

Only 4 shares were withheld at $36.93 per share to cover state tax obligations, indicating no open-market sale or purchase. Following the transactions, Mumford directly holds 27,162 common shares, suggesting the net result is continued equity exposure rather than a reduction in her position.

Insider Trade Summary

4,837 shares exercised/converted

Exercise 3 txns

Insider Mumford Lisa

Role Director

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units - Time-based Award	4,837	$0.00	$0.00
Exercise	Common Stock	4,837	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	4	$36.93	$147.72

Holdings After Transaction: Restricted Stock Units - Time-based Award — 0 contracts (Direct); Common Stock — 27,162 shares (Direct)

Footnotes (4)

1. F1. Vesting of time-based RSUs granted on May 21, 2025.
2. F2. Pursuant to the terms of the Company's equity compensation plan, represents shares withheld by the Company to satisfy state tax withholding obligations.
3. F3. Each RSU represents a contingent right to receive one share of common stock.
4. F4. Not Applicable

Key Figures

RSUs vested: 4,837 units Shares from RSU conversion: 4,837 shares Shares withheld for taxes: 4 shares at $36.93 +3 more

6 metrics

RSUs vested 4,837 units Time-based RSUs vested on May 15, 2026

Shares from RSU conversion 4,837 shares Common stock received upon RSU vesting

Shares withheld for taxes 4 shares at $36.93 Withheld to satisfy state tax obligations

Post-transaction holdings 27,162 shares Common stock held directly after transactions

Exercise/vesting events 1 event, 4,837 shares Derivative exercise/conversion count and shares

Tax-withholding events 1 event, 4 shares Shares used for state tax withholding

Key Terms

Restricted Stock Units - Time-based Award, equity compensation plan, tax withholding obligations, contingent right, +1 more

5 terms

Restricted Stock Units - Time-based Award financial

"security_title: Restricted Stock Units - Time-based Award"

equity compensation plan financial

"Pursuant to the terms of the Company's equity compensation plan, represents shares withheld"

A plan by which a company gives employees, directors or contractors ownership or the right to buy ownership in the company through stock, options or similar awards — think of promising slices of the company pie as part of someone's pay. It matters to investors because these awards can change the number of shares outstanding, affect reported profits and influence management’s decisions; large or generous plans can dilute existing holders and alter incentives over time.

tax withholding obligations financial

"represents shares withheld by the Company to satisfy state tax withholding obligations"

contingent right financial

"Each RSU represents a contingent right to receive one share of common stock"

derivative exercise/conversion financial

"transaction_action: derivative exercise/conversion"

FAQ

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

What insider activity did Radian Group (RDN) report for Lisa Mumford?

Radian Group director Lisa Mumford reported the vesting of 4,837 time-based RSUs into common stock. In connection with this vesting, 4 shares were withheld to cover state tax obligations, leaving her with 27,162 directly held common shares.

Did Lisa Mumford buy or sell Radian Group (RDN) shares on the market?

The Form 4 does not show any open-market buy or sell transactions. It reports RSU vesting and 4 shares withheld by the company for state tax obligations, which is a non-market disposition tied to compensation, not a discretionary trade.

How many Radian Group shares does Lisa Mumford hold after these transactions?

After the reported Form 4 transactions, Lisa Mumford directly holds 27,162 shares of Radian Group common stock. This figure reflects the vesting of 4,837 RSUs and the withholding of 4 shares to satisfy state tax obligations under the equity compensation plan.

What RSU award was involved in the latest Radian Group (RDN) Form 4?

The Form 4 involves time-based restricted stock units granted on May 21, 2025. On May 15, 2026, 4,837 of these RSUs vested, with each RSU converting into one share of Radian Group common stock, consistent with the plan’s contingent right structure.

Why were 4 Radian Group shares withheld from Lisa Mumford’s RSU vesting?

The company withheld 4 shares of Radian Group common stock to satisfy state tax withholding obligations related to the RSU vesting. This tax-withholding disposition occurs under the equity compensation plan and does not represent an open-market sale by the director.

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

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Accepted by SEC EDGAR 05/19/2026 - 06:09 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^*

Mumford Lisa

(Last) (First) (Middle)

RADIAN GROUP INC.

550 E. SWEDESFORD ROAD, #350

(Street)

WAYNE PENNSYLVANIA 19087

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
RADIAN GROUP INC [ RDN ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026

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
Common Stock	05/15/2026		M		4,837(1)	A	$0	27,166	D
Common Stock	05/15/2026		F		4(2)	D	$36.93	27,162	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
Restricted Stock Units - Time-based Award	$0(3)	05/15/2026		M			4,837(1)	05/15/2026	(4)	Common Stock	4,837	(4)	0	D

Explanation of Responses:

1. Vesting of time-based RSUs granted on May 21, 2025.

2. Pursuant to the terms of the Company's equity compensation plan, represents shares withheld by the Company to satisfy state tax withholding obligations.

3. Each RSU represents a contingent right to receive one share of common stock.

4. Not Applicable

	Elizabeth Diffley /s/, Elizabeth Diffley, (POA) Atty-in-fact	05/19/2026
	** 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)