MGIC (NYSE: MTG) CFO sells 20,000 shares under 10b5-1 plan

Rhea-AI Filing Summary

MGIC Investment Corp executive vice president, CFO and CRO Nathaniel H. Colson sold 20,000 shares of common stock at $27.10 per share in an open-market transaction. The sale was executed under a pre-arranged Rule 10b5-1 trading plan. Colson still directly holds 341,225.972 shares after this transaction.

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 ($542K)

Type	Security	Shares	Price	Value
Sale	Common Stock	20,000	$27.10	$542K

Holdings After Transaction: Common Stock — 341,225.972 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

Shares sold: 20,000 shares Sale price: $27.10 per share Shares held after: 341,225.972 shares +2 more

5 metrics

Shares sold 20,000 shares Open-market sale of common stock on 2026-06-25

Sale price $27.10 per share Price for the 20,000 common shares sold

Shares held after 341,225.972 shares Direct ownership after the reported transaction

Transaction code S (sale) Non-derivative open-market or private sale code

Plan type Rule 10b5-1 trading plan Footnote indicates sale executed under pre-arranged plan

Key Terms

Rule 10b5-1 trading plan, open-market sale, Common Stock, non-derivative

4 terms

Rule 10b5-1 trading plan regulatory

"The transaction reported on this Form 4 was effected 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.

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Common Stock financial

""security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

non-derivative financial

""transaction_type": "non-derivative""

FAQ

What insider transaction did MGIC Investment Corp (MTG) disclose for Nathaniel H. Colson?

Nathaniel H. Colson reported selling 20,000 shares of MGIC common stock. The shares were sold in an open-market transaction at $27.10 per share, as shown in the Form 4, and he continues to hold a sizable remaining direct stake.

At what price were the MGIC (MTG) shares sold in this Form 4 filing?

The reported sale was executed at $27.10 per share. This price applies to the 20,000 MGIC common shares sold in the open market, as disclosed in the filing’s non-derivative transaction table for Nathaniel H. Colson.

How many MGIC (MTG) shares does Nathaniel H. Colson hold after the reported sale?

Following the sale, Nathaniel H. Colson directly holds 341,225.972 MGIC common shares. This post-transaction balance is listed in the Form 4 and reflects his remaining direct ownership after disposing of 20,000 shares.

Was the MGIC (MTG) insider sale made under a Rule 10b5-1 trading plan?

Yes. The footnote states the transaction was effected under a Rule 10b5-1 trading plan. The plan was adopted by Nathaniel H. Colson on 02-27-2026, indicating the sale was pre-arranged rather than a discretionary same-day decision.

What role does Nathaniel H. Colson hold at MGIC Investment Corp (MTG)?

Nathaniel H. Colson is an executive officer serving as executive vice president, chief financial officer and chief risk officer. His position is disclosed in the Form 4, identifying him as a key member of MGIC’s senior management team.

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/26/2026 - 04:06 PM Accepted by SEC EDGAR 06/26/2026 - 04:05 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)
06/25/2026

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	06/25/2026		S(1)		20,000	D	$27.1	341,225.972	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	06/26/2026
	** 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)