🕵️ Merit Medical Systems Inc ($MMSI)
SEC insider & ownership activity, last 12 months · CIK 856982 · every row links its SEC filing
Over the last 12 months insiders sold $6.4M against $573K of open-market buying. Fred Lampropoulos sold $5.2M (Nov). No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
5 buyers, $573K (5 lots) · 3 sellers, $6.4M (8 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Fred Lampropoulos | 0 | – | 4 | $5.2M | Nov 25, 2025 |
| Lynne Ward | 0 | – | 3 | $785K | May 7, 2026 |
| Neil W Peterson | 0 | – | 1 | $450K | Jan 6, 2026 |
| Michel J. Voigt | 1 | $136K | 0 | – | May 5, 2026 |
| Brian G. Lloyd | 1 | $125K | 0 | – | May 7, 2026 |
| Aronson Martha Goldberg | 1 | $121K | 0 | – | May 6, 2026 |
| Smith Christian Adam | 1 | $99K | 0 | – | May 11, 2026 |
| Parra Raul Jr. | 1 | $92K | 0 | – | May 6, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Blackrock, Inc. | 14.1% | 13G | Oct 17, 2025 | filing ↗ | |
| Vanguard Portfolio Management | 6.0% | 13G | Apr 29, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.2% | 13G | Apr 30, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Lynne Ward | $313K | May 7, 2026 | filing ↗ |
| Neil W Peterson | $450K | Jan 6, 2026 | filing ↗ |
| Fred Lampropoulos | $880K | Nov 25, 2025 | filing ↗ |
| Fred Lampropoulos | $2.2M | Nov 21, 2025 | filing ↗ |
| Fred Lampropoulos | $1.7M | Nov 20, 2025 | filing ↗ |
| Fred Lampropoulos | $424K | Nov 18, 2025 | filing ↗ |
| Lynne Ward | $266K | Aug 22, 2025 | filing ↗ |
| Lynne Ward | $207K | Aug 11, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Officer/director changes (5.02) | May 13, 2026 | filing ↗ |
| Charter/bylaw changes (5.03) | May 13, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 13, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 13, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 13, 2026 | filing ↗ |
| Earnings (2.02) | Apr 30, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 30, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 30, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 13, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 13, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 1, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 1, 2026 | filing ↗ |
| Earnings (2.02) | Feb 24, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 24, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 24, 2026 | filing ↗ |
| Earnings (2.02) | Jan 4, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jan 4, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 4, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 13, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 13, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 3, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 3, 2025 | filing ↗ |
| Earnings (2.02) | Oct 30, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Oct 30, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 30, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Oct 15, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 15, 2025 | filing ↗ |
| Officer/director changes (5.02) | Oct 3, 2025 | filing ↗ |
| Earnings (2.02) | Jul 30, 2025 | filing ↗ |