MGIC Investment CFO sells 20,000 shares

The officer's reported direct holdings after the sale were 321,226 shares; the transaction was under a Rule 10b5-1 plan adopted February 27, 2026.

Rhea-AI Filing Summary

MGIC Investment Corp (MTG) officer Nathaniel H. Colson, identified as EVP, CFO & CRO, sold 20,000 shares of common stock on September 24, 2026, at $29.48 per share. He directly held 321,226 shares after the sale. The transaction was made pursuant to a Rule 10b5-1 trading plan adopted February 27, 2026.

Insider Trade Summary 10b5-1

Net Seller: 20,000 shares

Net Sell 1 txn

Insider Colson Nathaniel H

Role Officer EVP, CFO & CRO

Sold 20,000 shs ($590K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	20,000	$29.48	$590K

Holdings After Transaction: Common Stock — 321,225.972 shares (Direct)

Footnotes (1)

1. F1. The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 02-27-2026.

Key Figures

Common shares sold: 20,000 shares Sale price: $29.48 per share Direct shares held after sale: 321,226 shares

3 metrics

Common shares sold 20,000 shares September 24, 2026

Sale price $29.48 per share September 24, 2026

Direct shares held after sale 321,226 shares After the September 24, 2026 sale

Key Terms

Rule 10b5-1 trading plan

1 terms

Rule 10b5-1 trading plan regulatory

"pursuant to a Rule 10b5-1 trading plan adopted"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

FAQ

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

How many MTG shares did Nathaniel H. Colson sell, and at what price?

Nathaniel H. Colson sold 20,000 shares of MGIC Investment Corp common stock on September 24, 2026, at $29.48 per share.

Was the MTG share sale made under a Rule 10b5-1 plan?

Yes. The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 27, 2026.

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

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Available on EDGAR 09/25/2026 - 04:41 PM Accepted by SEC EDGAR 09/25/2026 - 04:40 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).

X

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^*

Colson Nathaniel H

(Last) (First) (Middle)

250 EAST KILBOURN AVENUE

(Street)

MILWAUKEE WISCONSIN 53202

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MGIC INVESTMENT CORP [ MTG ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Officer EVP, CFO & CRO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/24/2026

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	09/24/2026		S(1)		20,000	D	$29.48	321,225.972	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. The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 02-27-2026.

Remarks:

	Leslie A. Schunk, Attorney-in-Fact	09/25/2026
	** 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)