Gregory Serio - 15 May 2026 Form 4 Insider Report for RADIAN GROUP INC (RDN)

Reporting relationship: Director
Issuer ticker: RDN
Reported as of: 15 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 19 May 2026, 17:30:28 UTC
Prior SEC filing: 23 May 2025
Source filing: View source filing
Reporting owner signature: Elizabeth Diffley /s/, Elizabeth Diffley, (POA) Atty-in-fact

Key filing fact

Gregory Serio filed Form 4 for RADIAN GROUP INC (RDN) on 19 May 2026.

Key facts

This page summarizes Gregory Serio's Form 4 filing for RADIAN GROUP INC (RDN).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 19 May 2026, 17:30.

Change

Previous filing in this sequence was filed on 23 May 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001551214 Primary reporting owner

Serio Gregory

Relationship: Director
Address: RADIAN GROUP INC., 550 E SWEDESFORD ROAD, #350, WAYNE
Signature: Elizabeth Diffley /s/, Elizabeth Diffley, (POA) Atty-in-fact
Signature date: 19 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

RDN transaction

Common Stock

Options Exercise

Transaction value
Shares: +4,837
Change %: +89%
Price: $0.000000^*
Shares after: 10,279
Date: 15 May 2026
Ownership: Direct
Footnotes: F1

RDN transaction

Common Stock

Tax liability

Transaction value
Shares: -5
Change %: -0.05%
Price: $36.93^*
Shares after: 10,274
Date: 15 May 2026
Ownership: Direct
Footnotes: F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

RDN transaction Derivative

Restricted Stock Units - Time-based Award

Options Exercise

Transaction value
Shares: -4,837
Change %: -100%
Price
Shares after: 0
Date: 15 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 4,837
Exercise price: $0.000000
Footnotes: F1, F3, F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

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

Footnote F2

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

Footnote F3

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

Footnote F4

Not Applicable