🕵️ Mediaalpha, Inc. ($MAX)
SEC insider & ownership activity, last 12 months · CIK 1818383 · every row links its SEC filing
Over the last 12 months insiders sold $27.4M against $298K of open-market buying. Nonko Eugene sold $13.1M through a 10b5-1 trading plan in 138 lots (Nov–Jul). 1 planned sale is pending, the largest $155K (Nonko Eugene). No red-flag 8-Ks in the window.
🚨 1 signal active —
planned-vs-executed verdicts, pre-event flags, and cluster context live in the
API and the
alerts bot.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $298K (1 lots) · 5 sellers, $27.4M (252 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Nonko Eugene | 0 | – | 138 | $13.1M | Jul 29, 2026 |
| Yi Steven | 0 | – | 86 | $12.1M | Jul 17, 2026 |
| Cramer Keith | 0 | – | 11 | $1.2M | Jul 15, 2026 |
| Yeh Kuanling Amy | 0 | – | 14 | $854K | Jul 17, 2026 |
| Kathy P. Vrabeck | 1 | $298K | 0 | – | Aug 12, 2025 |
| Jeffrey B. Coyne | 0 | – | 3 | $143K | May 15, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| WM Hinson (BERMUDA) Ltd. | 33.0% | 13D | Apr 29, 2026 | filing ↗ | |
| White Mountains Insurance Group, Ltd. | 33.0% | 13D | Apr 29, 2026 | filing ↗ | |
| WM Hinson (BERMUDA) Ltd. | 30.1% | 13D | Aug 8, 2025 | filing ↗ | |
| Eugene Nonko | 10.8% | 13D | Feb 26, 2025 | filing ↗ | |
| O.N.E. Holdings, LLC | 10.2% | 13D | Feb 26, 2025 | filing ↗ | |
| Divisadero Street Capital Management, LP | 5.8% | Class A | 13G | Jul 28, 2026 | filing ↗ |
| William Zolezzi | 5.8% | Class A | 13G | Jul 28, 2026 | filing ↗ |
| Divisadero Street Capital, LLC | 5.8% | Class A | 13G | Jul 28, 2026 | filing ↗ |
| Divisadero Street Partners, L.P. | 5.5% | Class A | 13G | Jul 28, 2026 | filing ↗ |
| Divisadero Street Partners GP, LLC | 5.5% | Class A | 13G | Jul 28, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Yeh Kuanling Amy | $406K | Jul 16, 2026 | filing ↗ |
| Yi Steven | $11.4M | Jul 6, 2026 | filing ↗ |
| Nonko Eugene | $11.5M | Jul 6, 2026 | filing ↗ |
| Yi Steven | $1.2M | Jul 1, 2026 | filing ↗ |
| Nonko Eugene | $410K | Jun 29, 2026 | filing ↗ |
| Nonko Eugene | $235K | Jun 22, 2026 | filing ↗ |
| Nonko Eugene | $77K | Jun 17, 2026 | filing ↗ |
| Yi Steven | $240K | Jun 16, 2026 | filing ↗ |
| Nonko Eugene | $155K | Jun 16, 2026 | filing ↗ |
| Cramer Keith | $369K | Jun 15, 2026 | filing ↗ |
| Nonko Eugene | $232K | Jun 10, 2026 | filing ↗ |
| Yeh Kuanling Amy | $169K | May 15, 2026 | filing ↗ |
| Jeffrey B. Coyne | $40K | May 15, 2026 | filing ↗ |
| Nonko Eugene | $2.6M | Apr 20, 2026 | filing ↗ |
| Yi Steven | $1.4M | Apr 20, 2026 | filing ↗ |
| Yi Steven | $109K | Apr 13, 2026 | filing ↗ |
| Yi Steven | $112K | Apr 6, 2026 | filing ↗ |
| Yi Steven | $26K | Apr 1, 2026 | filing ↗ |
| Cramer Keith | $327K | Mar 16, 2026 | filing ↗ |
| Nonko Eugene | $726K | Mar 9, 2026 | filing ↗ |
| Yi Steven | $473K | Mar 9, 2026 | filing ↗ |
| Yeh Kuanling Amy | $93K | Mar 6, 2026 | filing ↗ |
| Yi Steven | $519K | Mar 2, 2026 | filing ↗ |
| Nonko Eugene | $1.3M | Mar 2, 2026 | filing ↗ |
| Nonko Eugene | $130K | Feb 25, 2026 | filing ↗ |
| Yi Steven | $186K | Feb 23, 2026 | filing ↗ |
| Jeffrey B. Coyne | $37K | Feb 13, 2026 | filing ↗ |
| Yi Steven | $174K | Feb 10, 2026 | filing ↗ |
| Yi Steven | $248K | Feb 2, 2026 | filing ↗ |
| Nonko Eugene | $376K | Feb 2, 2026 | filing ↗ |
| Yi Steven | $261K | Jan 26, 2026 | filing ↗ |
| Nonko Eugene | $394K | Jan 26, 2026 | filing ↗ |
| Yi Steven | $269K | Jan 20, 2026 | filing ↗ |
| Nonko Eugene | $407K | Jan 20, 2026 | filing ↗ |
| Yeh Kuanling Amy | $172K | Jan 16, 2026 | filing ↗ |
| Yi Steven | $276K | Jan 12, 2026 | filing ↗ |
| Nonko Eugene | $418K | Jan 12, 2026 | filing ↗ |
| Yi Steven | $287K | Jan 5, 2026 | filing ↗ |
| Nonko Eugene | $435K | Jan 5, 2026 | filing ↗ |
| Yeh Kuanling Amy | $39K | Jan 2, 2026 | filing ↗ |
| Yi Steven | $304K | Dec 29, 2025 | filing ↗ |
| Nonko Eugene | $459K | Dec 29, 2025 | filing ↗ |
| Nonko Eugene | $469K | Dec 22, 2025 | filing ↗ |
| Yi Steven | $309K | Dec 22, 2025 | filing ↗ |
| Yi Steven | $309K | Dec 15, 2025 | filing ↗ |
| Nonko Eugene | $466K | Dec 15, 2025 | filing ↗ |
| Cramer Keith | $385K | Dec 15, 2025 | filing ↗ |
| Jeffrey B. Coyne | $66K | Dec 12, 2025 | filing ↗ |
| Yeh Kuanling Amy | $39K | Dec 12, 2025 | filing ↗ |
| Yeh Kuanling Amy | $162K | Dec 10, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | Jul 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 29, 2026 | filing ↗ |
| Material agreement (1.01) | Jun 25, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 25, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 15, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 15, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 15, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 5, 2026 | filing ↗ |
| Earnings (2.02) | Apr 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 29, 2026 | filing ↗ |
| Material agreement (1.01) | Mar 25, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 25, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 13, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 13, 2026 | filing ↗ |
| Earnings (2.02) | Feb 18, 2026 | filing ↗ |
| Other events (8.01) | Feb 18, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 18, 2026 | filing ↗ |
| Charter/bylaw changes (5.03) | Dec 10, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 10, 2025 | filing ↗ |
| Officer/director changes (5.02) | Dec 4, 2025 | filing ↗ |
| Officer/director changes (5.02) | Nov 10, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 10, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 10, 2025 | filing ↗ |
| Earnings (2.02) | Oct 28, 2025 | filing ↗ |
| Other events (8.01) | Oct 28, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 28, 2025 | filing ↗ |
| Material agreement (1.01) | Sep 3, 2025 | filing ↗ |
| Officer/director changes (5.02) | Sep 3, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Sep 3, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 3, 2025 | filing ↗ |