SEC Form 4
MGIC Investment Corp. (MTG) insider trading
In the 12 months to Oct 24, 2026, 4 MTG insiders reported open-market sales of $27.2M across 21 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $27.2M
- 21 filings · 4 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 21 of 21
- All $27.2M sold was pre-arranged
Who traded MTG, and when
- Sale
- Sale, pre-arranged (10b5-1)
MTG daily close from Oct 24, 2025 to Oct 23, 2026, between $24.86 and $31.47, last $28.80. 21 sale and 0 purchase filings by 4 insiders, marked at their filing dates. Timothy J. Mattke, Chief Executive Officer: sold $15.2M across 4 filings, first filed Jan 14, 2026, last Oct 2, 2026. Salvatore A. Miosi, President & COO: sold $8.7M across 11 filings, first filed Nov 4, 2025, last Oct 2, 2026. Paula C. Maggio, EVP and General Counsel: sold $2.2M across 4 filings, first filed Nov 3, 2025, last Aug 10, 2026. Nathaniel H. Colson, Officer EVP, CFO & CRO: sold $1.1M across 2 filings, first filed Jun 26, 2026, last Sep 25, 2026.
Largest mark · tap a row for others
Timothy J. Mattke · Chief Executive Officer
Sale $4,184,277
137,113 shares at $30.52 avg
Filed Aug 6, 2026 · traded Aug 5
Pre-arranged (10b5-1) · close on filing date $30.26
Timothy J. Mattke · Chief Executive Officer
Chief Executive Officer
$15.2M soldSalvatore A. Miosi · President & COO
President & COO
$8.7M soldPaula C. Maggio · EVP and General Counsel
EVP and General Counsel
$2.2M soldNathaniel H. Colson · Officer EVP, CFO & CRO
Officer EVP, CFO & CRO
$1.1M soldHas MGIC Investment Corp.'s CEO sold stock?
Yes. Timothy J. Mattke (CEO) sold 552,632 shares ($15.2M) between Jan 2026 and Oct 2026, all under a pre-arranged 10b5-1 plan.
Open-market trades
21 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Timothy J. Mattke | Chief Executive Officer | $15.2M | — | 4 | 100% of sales | |
| Salvatore A. Miosi | President & COO | $8.7M | — | 11 | 100% of sales | |
| Paula C. Maggio | EVP and General Counsel | $2.2M | — | 4 | 100% of sales | |
| Nathaniel H. Colson | Officer EVP, CFO & CRO | $1.1M | — | 2 | 100% of sales |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Timothy J. Mattke Chief Executive Officer | SalePre-arranged (10b5-1) | 137,114 | $26.24 | $3.6M | 843,778 | |
traded | Salvatore A. Miosi President & COO | SalePre-arranged (10b5-1) | 30,000 | $26.06 | $781.8K | 440,951 | |
traded | Nathaniel H. Colson Officer EVP, CFO & CRO | SalePre-arranged (10b5-1) | 20,000 | $29.48 | $589.6K | 321,226 | |
traded | Salvatore A. Miosi President & COO | SalePre-arranged (10b5-1) | 30,000 | $30.73 | $921.9K | 470,951 | |
traded | Paula C. Maggio EVP and General Counsel | SalePre-arranged (10b5-1) | 20,000 | $30.30 | $606.0K | 149,620 | |
traded | Timothy J. Mattke Chief Executive Officer | SalePre-arranged (10b5-1) | 137,113 | $30.52 | $4.2M | 980,892 | |
traded | Salvatore A. Miosi President & COO | SalePre-arranged (10b5-1) | 30,000 | $29.70 | $891.0K | 500,951 | |
traded | Salvatore A. Miosi President & COO | SalePre-arranged (10b5-1) | 30,000 | $28.23 | $846.9K | 530,951 | |
traded | Nathaniel H. Colson Officer EVP, CFO & CRO | SalePre-arranged (10b5-1) | 20,000 | $27.10 | $542.0K | 341,226 | |
traded | Salvatore A. Miosi President & COO | SalePre-arranged (10b5-1) | 30,000 | $25.38 | $761.4K | 560,951 | |
traded | Paula C. Maggio EVP and General Counsel | SalePre-arranged (10b5-1) | 20,937 | $25.55 | $534.9K | 169,620 | |
traded | Timothy J. Mattke Chief Executive Officer | SalePre-arranged (10b5-1) | 139,202 | $26.49 | $3.7M | 1,118,005 | |
traded | Salvatore A. Miosi President & COO | SalePre-arranged (10b5-1) | 10,931 | $26.25 | $287.0K | 590,951 | |
traded | Salvatore A. Miosi President & COO | SalePre-arranged (10b5-1) | 30,000 | $27.04 | $811.1K | 731,203 | |
traded | Paula C. Maggio EVP and General Counsel | SalePre-arranged (10b5-1) | 20,000 | $27.51 | $550.2K | 114,689 | |
traded | Salvatore A. Miosi President & COO | SalePre-arranged (10b5-1) | 30,000 | $27.27 | $818.0K | 454,245 | |
traded | Timothy J. Mattke Chief Executive Officer | SalePre-arranged (10b5-1) | 139,203 | $26.51 | $3.7M | 822,588 | |
traded | Salvatore A. Miosi President & COO | SalePre-arranged (10b5-1) | 30,000 | $29.13 | $874.0K | 99,401 | |
traded | Salvatore A. Miosi President & COO | SalePre-arranged (10b5-1) | 30,000 | $28.40 | $852.0K | 129,401 | |
traded | Salvatore A. Miosi President & COO | SalePre-arranged (10b5-1) | 30,000 | $27.52 | $825.6K | 159,401 | |
traded | Paula C. Maggio EVP and General Counsel | SalePre-arranged (10b5-1) | 20,000 | $27.44 | $548.8K | 117,395 |
GET /stocks/filings/vX/form-4?tickers=MTG&filing_date.gte=2025-10-24&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"MTG"
],
"issuer_cik": "0000876437",
"owner_cik": "0001687897",
"accession_number": "0001687897-26-000018",
"form_type": "4",
"filing_date": "2026-10-02",
"period_of_report": "2026-10-01",
"issuer_name": "MGIC INVESTMENT CORP",
"issuer_trading_symbol": "MTG",
"owner_name": "Miosi Salvatore A",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "President & COO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-01",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 30000,
"transaction_price_per_share": 26.06,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 440951.361,
"transaction_value": 781800,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 03/02/2026."
}
]
},
{
"tickers": [
"MTG"
],
"issuer_cik": "0000876437",
"owner_cik": "0001465105",
"accession_number": "0001465105-26-000011",
"form_type": "4",
"filing_date": "2026-10-02",
"period_of_report": "2026-10-01",
"issuer_name": "MGIC INVESTMENT CORP",
"issuer_trading_symbol": "MTG",
"owner_name": "Mattke Timothy J.",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chief Executive Officer",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-01",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 137114,
"transaction_price_per_share": 26.235,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 843778.401,
"transaction_value": 3597185.79,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The transaction reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 05/04/2026."
},
{
"id": "F2",
"description": "The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.705 to $26.530, inclusive. The reporting person undertakes to provide MGIC Investment Corporation, any security holder of MGIC Investment Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 78 records
- Tax withholding5 records
- Grants and awards68 records
- Gifts1 record
- Other4 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for MTG every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.