Massivemarkets

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

MTG daily closelast $28.80

Timothy J. Mattke · Chief Executive Officer

$15.2M sold

Salvatore A. Miosi · President & COO

$8.7M sold

Paula C. Maggio · EVP and General Counsel

$2.2M sold

Nathaniel H. Colson · Officer EVP, CFO & CRO

$1.1M sold
One row per insider; marks sit at the SEC filing date, sized by dollar value.

Has 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
InsiderRoleSoldBoughtFilingsPre-arranged (10b5-1)Last filed
Timothy J. MattkeChief Executive Officer$15.2M—4100% of sales
Salvatore A. MiosiPresident & COO$8.7M—11100% of sales
Paula C. MaggioEVP and General Counsel$2.2M—4100% of sales
Nathaniel H. ColsonOfficer EVP, CFO & CRO$1.1M—2100% of sales
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:

Agent prompt

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.