MMSI · Insider Trading
Merit Medical Systems Inc
Every open-market purchase and sale reported by MMSI officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-09 | Sheri Lewis | EVP of Global Operations | A | +8,371 | — |
| 2026-08-25 | Michel J. Voigt | CHIEF HUMAN RESOURCES OFFICER | G | −650 | — |
| 2026-08-25 | Neil W. Peterson | CHIEF OPERATING OFFICER | Sell | −7,500 | −$678.36K |
| 2026-08-05 | Neil W. Peterson | CHIEF OPERATING OFFICER | Sell | −21,449 | −$1.82M |
| 2026-06-17 | Michel J. Voigt | CHIEF HUMAN RESOURCES OFFICER | G | −65 | — |
| 2026-06-08 | Brian G. Lloyd | CHIEF LEGAL OFFICER, SECRETARY | G | −2,000 | — |
| 2026-05-21 | Thomas J. Gunderson | Director | M | +21,250 | +$1.11M |
| 2026-05-19 | Laura S. Kaiser | Director | A | +3,457 | — |
| 2026-05-19 | Silvia M. Perez | Director | A | +3,457 | — |
| 2026-05-19 | Thomas J. Gunderson | Director | A | +3,457 | — |
| 2026-05-19 | F. Ann Ed.D. Millner | Director | A | +3,457 | — |
| 2026-05-19 | Lonny J. Carpenter | Director | A | +3,457 | — |
| 2026-05-19 | Lynne N. Ward | Director | A | +3,457 | — |
| 2026-05-19 | Michael R. McDonnell | Director | A | +3,457 | — |
| 2026-05-19 | Scott R. Ward | Director | A | +3,457 | — |
| 2026-05-19 | Stephen C. Evans | Director | A | +3,457 | — |
| 2026-05-13 | Christian Adam Smith | Chief Commercial Officer | Buy | +1,626 | +$99.19K |
| 2026-05-11 | Lynne N. Ward | Director | Sell | −5,000 | −$313.04K |
| 2026-05-11 | Brian G. Lloyd | CHIEF LEGAL OFFICER, SECRETARY | Buy | +2,000 | +$125.25K |
| 2026-05-07 | Martha Goldberg Aronson | President and CEO | Buy | +2,000 | +$120.88K |
| 2026-05-07 | Michel J. Voigt | CHIEF HUMAN RESOURCES OFFICER | Buy | +2,250 | +$136.46K |
| 2026-05-07 | Raul Parra Jr. | CFO AND TREASURER | Buy | +1,500 | +$91.52K |
| 2026-03-02 | Brian G. Lloyd | CHIEF LEGAL OFFICER, SECRETARY | MIXED | +27,887 | −$450.80K |
| 2026-03-02 | Neil W. Peterson | CHIEF OPERATING OFFICER | MIXED | +18,631 | −$472.88K |
| 2026-03-02 | Michel J. Voigt | CHIEF HUMAN RESOURCES OFFICER | MIXED | +24,403 | −$522.58K |
| 2026-03-02 | Christian Adam Smith | Chief Commercial Officer | MIXED | +19,356 | −$157.44K |
| 2026-03-02 | Martha Goldberg Aronson | President and CEO | A | +28,198 | — |
| 2026-03-02 | Raul Parra Jr. | CFO AND TREASURER | MIXED | +33,142 | −$450.80K |
| 2026-01-08 | Neil W. Peterson | CHIEF OPERATING OFFICER | MIXED | — | −$178.00K |
| 2025-11-26 | Fred P. Lampropoulos | Executive Chairman | Sell | −10,000 | −$880.38K |
| 2025-11-24 | Fred P. Lampropoulos | Executive Chairman | Sell | −25,000 | −$2.18M |
| 2025-11-21 | Fred P. Lampropoulos | Executive Chairman | Sell | −20,000 | −$1.70M |
| 2025-11-20 | Fred P. Lampropoulos | Executive Chairman | Sell | −5,000 | −$424.13K |
| 2025-10-07 | Martha Goldberg Aronson | President and CEO | A | +19,594 | — |
| 2025-10-07 | Martha Goldberg Aronson | President and CEO | A | +19,594 | — |
| 2025-09-03 | Fred P. Lampropoulos | President and CEO | MIXED | +34,873 | −$2.45M |
| 2025-08-25 | Lynne N. Ward | Director | MIXED | — | −$162.30K |
| 2025-08-12 | Lynne N. Ward | Director | MIXED | — | −$122.69K |
| 2025-06-17 | Raul Parra Jr. | CFO AND TREASURER | MIXED | — | −$521.00K |
| 2025-06-12 | Fred P. Lampropoulos | President and CEO | Sell | −400 | −$38.24K |
| 2025-06-09 | Fred P. Lampropoulos | President and CEO | Sell | −10,000 | −$951.90K |
| 2025-06-03 | Michael R. McDonnell | Director | Sell | −3,500 | −$330.42K |
| 2025-06-03 | Fred P. Lampropoulos | President and CEO | Sell | −10,000 | −$951.20K |
| 2025-06-03 | David Floyd | Director | Sell | −3,515 | −$330.97K |
| 2025-06-03 | Michel J. Voigt | CHIEF HUMAN RESOURCES OFFICER | G | −55 | — |
| 2025-05-29 | Fred P Lampropoulos | President and CEO | Sell | −20,000 | −$1.93M |
| 2025-05-19 | Michael R McDonnell | Director | A | +2,152 | — |
| 2025-05-19 | Stephen C. Evans | Director | A | +2,152 | — |
| 2025-05-19 | Silvia Perez | Director | A | +2,152 | — |
| 2025-05-19 | David Floyd | Director | A | +2,152 | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Fred P. Lampropoulos | Executive Chairman | 1,028,235 | $93.19M |
| Brian G. Lloyd | CHIEF LEGAL OFFICER, SECRETARY | 62,132 | $5.63M |
| Raul Parra Jr. | CFO AND TREASURER | 61,542 | $5.58M |
| Thomas J. Gunderson | Director | 60,741 | $5.50M |
| Martha Goldberg Aronson | President and CEO | 49,792 | $4.51M |
| Michel J. Voigt | CHIEF HUMAN RESOURCES OFFICER | 47,677 | $4.32M |
| F. Ann Ed.D. Millner | Director | 38,000 | $3.44M |
| Christian Adam Smith | Chief Commercial Officer | 32,554 | $2.95M |
| Lonny J. Carpenter | Director | 20,824 | $1.89M |
| Neil W. Peterson | CHIEF OPERATING OFFICER | 18,051 | $1.64M |
| David Floyd | Director | 13,482 | $1.22M |
| Laura S. Kaiser | Director | 13,352 | $1.21M |
| Lynne N. Ward | Director | 11,266 | $1.02M |
| Stephen C. Evans | Director | 10,266 | $930.41K |
| Michael R. McDonnell | Director | 9,852 | $892.89K |
| Sheri Lewis | EVP of Global Operations | 8,371 | $758.66K |
| Silvia M. Perez | Director | 8,040 | $728.67K |
| Scott R. Ward | Director | 3,457 | $313.31K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the MMSI quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.