What SEC filings does MGIC Investment Corporation submit to the SEC?

MGIC Investment Corporation (MTG) submits several types of SEC filings including Form 4 (insider transactions), Form 144 (proposed insider sales), 8-K reports (material events such as earnings releases, acquisitions, leadership changes), and periodic reports — the 10-Q (quarterly) and 10-K (annual). All filings are publicly available through SEC EDGAR.

What does a Form 4 filing tell me about MTG?

A Form 4 for MTG discloses a transaction by a company insider — typically a director, officer, or 10%+ shareholder. It shows the source-reported date, number of shares, price, and updated ownership. These facts do not establish motive or predict future returns.

How do I interpret an 8-K filing from MGIC Investment Corporation?

An 8-K signals a material event requiring prompt disclosure. Common triggers include earnings pre-announcements, acquisitions, leadership appointments or departures, credit changes, or regulatory actions. Read the item codes inside the filing to understand exactly what was disclosed before drawing conclusions.

What is the difference between a 10-K and 10-Q for MTG?

The 10-K is MGIC Investment Corporation's annual report with fully audited financial statements, comprehensive MD&A, and complete risk factor disclosures — filed 60–90 days after fiscal year-end. The 10-Q is a lighter quarterly report with unaudited financials filed for the first three quarters. Together they provide a continuous financial picture of the company.

Where can I see all MTG SEC filings directly on EDGAR?

You can view all historical MGIC Investment Corporation filings on the SEC EDGAR company page for MTG. Each filing card on this page links directly to the original SEC document.

How often does MGIC Investment Corporation file with the SEC?

MGIC Investment Corporation files one 10-K per year and up to three 10-Qs per year. Form 4 insider transactions must be reported within two business days of each trade, so the frequency depends on how often insiders are buying or selling MTG shares. 8-K filings occur whenever a material event happens — which can be several times per quarter for an active company.

MTG SEC Filing News — MGIC Investment Corporation

Latest SEC filings for MGIC Investment Corporation (MTG) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-10-02.

MGIC Investment Corporation, through its subsidiaries, provides private mortgage insurance, other mortgage credit risk management solutions, and ancillary services in the United States, the District of Columbia, Puerto Rico, and Guam. The company offers primary insurance that provides mortgage default protection on individual loans, as well as covers unpaid loan principal, delinquent interest, and various expenses associated with the default and subsequent foreclosure on the mortgage or sale of …

Sector: Financial Services Industry: Insurance - Specialty Market Cap: $5.7B

Total Filings

Bullish Classifications

Bearish Classifications

Insider Transactions

Material Events (8-K)

Periodic Reports

Rule-based classifications for MTG currently lean bearish. Of the 20 filing records displayed, 6 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 0 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.

MTG Filing Activity Snapshot 2026-08-06 — 2026-10-02

Insider Transactions (Form 4)

0 buys vs 6 sells

Net insider selling in this period — insiders sell for many reasons beyond conviction.

Largest Form 144 Filing

$4.18M

Mattke Timothy J. (Director, Chief Executive Officer) · 2026-08-06

137,113 shares · Form 4

Form 144 Notices

Proposed insider sales filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.

Insider Transactions 15 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 15 filings in this group are Form 4s for MGIC Investment Corporation.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 15 insider filings shown, the breakdown is 9 compensation award and 6 open-market sale. 6 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Compensation award ×9: Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Open-market sale ×6: The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Form 4 Open-market sale Insider Selling 2026-10-02

MTG insider Miosi Salvatore A (President & COO) sold 30,000 shares (~$781.8K)

Miosi Salvatore A, listed as President & COO at MGIC INVESTMENT CORP, reported an open-market sale of 30,000 MTG shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	30,000	$26.06	$781.8K

Filing: Form 4 (Insider Transaction) Insider: Miosi Salvatore A (President & COO) Shares: 30,000 Est. Value: $781.8K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-10-02

MTG insider Mattke Timothy J. (Director, Chief Executive Officer) sold 137,114 shares (~$3.60M)

Mattke Timothy J., listed as Director, Chief Executive Officer at MGIC INVESTMENT CORP, reported an open-market sale of 137,114 MTG shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	137,114	$26.23	$3.60M

Filing: Form 4 (Insider Transaction) Insider: Mattke Timothy J. (Director, Chief Executive Officer) Shares: 137,114 Est. Value: $3.60M

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-09-25

MTG insider Colson Nathaniel H (Officer EVP, CFO & CRO) sold 20,000 shares (~$589.6K)

Colson Nathaniel H, listed as Officer EVP, CFO & CRO at MGIC INVESTMENT CORP, reported an open-market sale of 20,000 MTG shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	20,000	$29.48	$589.6K

Filing: Form 4 (Insider Transaction) Insider: Colson Nathaniel H (Officer EVP, CFO & CRO) Shares: 20,000 Est. Value: $589.6K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-09-02

MTG insider Miosi Salvatore A (President & COO) sold 30,000 shares (~$921.9K)

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	30,000	$30.73	$921.9K

Filing: Form 4 (Insider Transaction) Insider: Miosi Salvatore A (President & COO) Shares: 30,000 Est. Value: $921.9K

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-21

MTG insider Form 4 filed for equity award, exercise, or tax withholding

Zandi Mark (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	28	—	—
`A`	Compensation award derivative · Share Units	267	—	—

Filing: Form 4 (Insider Transaction) Insider: Zandi Mark (Director) Shares: 28

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-21

MTG insider Form 4 filed for equity award, exercise, or tax withholding

Klein Martin P (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	35	—	—

Filing: Form 4 (Insider Transaction) Insider: Klein Martin P (Director) Shares: 35

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-21

MTG insider Form 4 filed for equity award, exercise, or tax withholding

CHAPLIN C EDWARD (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	145	—	—
`A`	Compensation award derivative · Share Units	275	—	—

Filing: Form 4 (Insider Transaction) Insider: CHAPLIN C EDWARD (Director) Shares: 145

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-21

MTG insider Form 4 filed for equity award, exercise, or tax withholding

Sculley Sheryl L. (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	130	—	—
`A`	Compensation award derivative · Share Units	108	—	—

Filing: Form 4 (Insider Transaction) Insider: Sculley Sheryl L. (Director) Shares: 130

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-21

MTG insider Form 4 filed for equity award, exercise, or tax withholding

Hartzell Jay C. (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	195	—	—
`A`	Compensation award derivative · Share Units	108	—	—

Filing: Form 4 (Insider Transaction) Insider: Hartzell Jay C. (Director) Shares: 195

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-21

MTG insider Form 4 filed for equity award, exercise, or tax withholding

CULVER CURT S (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	28	—	—

Filing: Form 4 (Insider Transaction) Insider: CULVER CURT S (Director) Shares: 28

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-21

MTG insider Form 4 filed for equity award, exercise, or tax withholding

Lowman Teresita M. (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	189	—	—

Filing: Form 4 (Insider Transaction) Insider: Lowman Teresita M. (Director) Shares: 189

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-21

MTG insider Form 4 filed for equity award, exercise, or tax withholding

O'Leary-Gill Daniela (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	28	—	—

Filing: Form 4 (Insider Transaction) Insider: O'Leary-Gill Daniela (Director) Shares: 28

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-21

MTG insider Form 4 filed for equity award, exercise, or tax withholding

Thompson Michael Leal (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	28	—	—

Filing: Form 4 (Insider Transaction) Insider: Thompson Michael Leal (Director) Shares: 28

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-10

MTG insider Maggio Paula C (EVP and General Counsel) sold 20,000 shares (~$606.0K)

Maggio Paula C, listed as EVP and General Counsel at MGIC INVESTMENT CORP, reported an open-market sale of 20,000 MTG shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	20,000	$30.30	$606.0K

Filing: Form 4 (Insider Transaction) Insider: Maggio Paula C (EVP and General Counsel) Shares: 20,000 Est. Value: $606.0K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-06

MTG insider Mattke Timothy J. (Director, Chief Executive Officer) sold 137,113 shares (~$4.18M)

Mattke Timothy J., listed as Director, Chief Executive Officer at MGIC INVESTMENT CORP, reported an open-market sale of 137,113 MTG shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	137,113	$30.52	$4.18M

Filing: Form 4 (Insider Transaction) Insider: Mattke Timothy J. (Director, Chief Executive Officer) Shares: 137,113 Est. Value: $4.18M

View on SEC EDGAR → Open Filing Document →

Proposed Insider Sales 5 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. MGIC Investment Corporation has 5 such notices in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Proposed Insider Sale 2026-10-01

MTG Form 144 filed for proposed insider sale by Mattke Timothy J. (137,114 shares) ~$3.57M

Mattke Timothy J. filed a Form 144 with the SEC indicating intent to sell MTG (MGIC INVESTMENT CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Mattke Timothy J. Shares: 137,114 Est. Value: $3.57M

View on SEC EDGAR → Open Filing Document →

Form 144 Proposed Insider Sale 2026-10-01

MTG Form 144 filed for proposed insider sale by Miosi Salvatore A (30,000 shares) ~$781.8K

Miosi Salvatore A filed a Form 144 with the SEC indicating intent to sell MTG (MGIC INVESTMENT CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Miosi Salvatore A Shares: 30,000 Est. Value: $781.8K

View on SEC EDGAR → Open Filing Document →

Form 144 Proposed Insider Sale 2026-09-24

MTG Form 144 filed for proposed insider sale by Colson Nathaniel H (20,000 shares) ~$589.6K

Colson Nathaniel H filed a Form 144 with the SEC indicating intent to sell MTG (MGIC INVESTMENT CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Colson Nathaniel H Shares: 20,000 Est. Value: $589.6K

View on SEC EDGAR → Open Filing Document →

Form 144 Proposed Insider Sale 2026-09-01

MTG Form 144 filed for proposed insider sale by Miosi Salvatore A (30,000 shares) ~$921.9K

Filing: Form 144 (Proposed Sale Notice) Insider: Miosi Salvatore A Shares: 30,000 Est. Value: $921.9K

View on SEC EDGAR → Open Filing Document →

Form 144 Proposed Insider Sale 2026-08-07

MTG Form 144 filed for proposed insider sale by Maggio Paula C (20,000 shares) ~$606.0K

Maggio Paula C filed a Form 144 with the SEC indicating intent to sell MTG (MGIC INVESTMENT CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Maggio Paula C Shares: 20,000 Est. Value: $606.0K

View on SEC EDGAR → Open Filing Document →

How we classify MGIC Investment Corporation's filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on MTG. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — MTG SEC Filings

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MTG Full Analysis

Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.

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