Updated Jul 16, 2026
Mattke Timothy J. is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market sales: $14.84M.

Timothy J. Mattke is the Chief Executive Officer and a Director of MGIC Investment Corp, a company specializing in private mortgage insurance and mortgage credit risk management solutions. He has been involved in the company through various roles, contributing to its operations and strategic direction.
| Role | Chief Executive Officer, Director |
|---|---|
| Notability | 50/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-04-03 | MTG | MGIC INVESTMENT CORP | S — Open-market sale [10b5-1] | 139.2K | $26.49 | $3.69M |
| 2026-03-20 | MTG | MGIC INVESTMENT CORP | F — Tax withholding / forfeiture | 307.7K | $26.53 | $8.16M |
| 2026-03-04 | MTG | MGIC INVESTMENT CORP | F — Tax withholding / forfeiture | 307.6K | $26.53 | $8.16M |
| 2026-02-26 | MTG | MGIC INVESTMENT CORP | A — Grant or award | 652.1K | — | |
| 2026-02-06 | MTG | MGIC INVESTMENT CORP | A — Grant or award | 90.3K | — | |
| 2026-01-14 | MTG | MGIC INVESTMENT CORP | S — Open-market sale [10b5-1] | 542 | $27.77 | $15K |
| 2026-01-14 | MTG | MGIC INVESTMENT CORP | S — Open-market sale [10b5-1] | 9.2K | $27.18 | $250K |
| 2026-01-14 | MTG | MGIC INVESTMENT CORP | S — Open-market sale [10b5-1] | 11.2K | $25.90 | $291K |
| 2026-01-14 | MTG | MGIC INVESTMENT CORP | S — Open-market sale [10b5-1] | 3.0K | $27.80 | $84K |
| 2026-01-14 | MTG | MGIC INVESTMENT CORP | S — Open-market sale [10b5-1] | 52.1K | $27.18 | $1.42M |
| 2026-01-14 | MTG | MGIC INVESTMENT CORP | S — Open-market sale [10b5-1] | 63.1K | $25.89 | $1.63M |
| 2025-10-07 | MTG | MGIC INVESTMENT CORP | S — Open-market sale | 139.2K | $27.09 | $3.77M |
| 2025-08-07 | MTG | MGIC INVESTMENT CORP | S — Open-market sale | 139.2K | $26.54 | $3.69M |
Timothy J. Mattke is the Chief Executive Officer and a Director of MGIC Investment Corp, a company specializing in private mortgage insurance and mortgage credit risk management solutions. He has been involved in the company through various roles, contributing to its operations and strategic direction.…
Recorded transactions: 0 open-market purchases () and 9 open-market sales ($14.84M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Open the live Mattke Timothy J. profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.