As of September 29, 2026, Merit Medical Systems's top three insider holders are Fred P. Lampropoulos (Executive Chairman, 1.02Mn shares), Thomas J. Gunderson (Director, 60.74K shares), Brian G. Lloyd (Chief Legal Officer, Secretary, 60.13K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Fred P. Lampropoulos | Executive Chairman | 1,019,955 | 0 | 1,019,955 | 64.8% | 26 Nov, 2025 |
| 2 | Thomas J. Gunderson | Director | 60,741 | 0 | 60,741 | 3.9% | 21 May, 2026 |
| 3 | Brian G. Lloyd | Chief Legal Officer, Secretary | 60,132 | 0 | 60,132 | 3.8% | 08 Jun, 2026 |
| 4 | Raul Jr. Parra | Cfo And Treasurer | 58,843 | 0 | 58,843 | 3.7% | 07 May, 2026 |
| 5 | Martha Goldberg Aronson | President And Ceo | 49,792 | 0 | 49,792 | 3.2% | 07 May, 2026 |
| 6 | A Scott Anderson | Director | 46,397 | 0 | 46,397 | 2.9% | 14 Aug, 2023 |
| 7 | Michel J. Voigt | Chief Human Resources Officer | 45,412 | 0 | 45,412 | 2.9% | 25 Aug, 2026 |
| 8 | Joseph Wright | Chief Commercial Officer | 42,223 | 0 | 42,223 | 2.7% | 08 Mar, 2024 |
| 9 | F. Ann Ed.D. Millner | Director | 38,000 | 0 | 38,000 | 2.4% | 19 May, 2026 |
| 10 | Lonny J. Carpenter | Director | 31,346 | 0 | 31,346 | 2.0% | 19 May, 2026 |
| 11 | Neil W. Peterson | Chief Operating Officer | 25,370 | 0 | 25,370 | 1.6% | 25 Aug, 2026 |
| 12 | Ronald Frost | Chief Operating Officer | 15,144 | 0 | 15,144 | 1.0% | 12 Aug, 2022 |
| 13 | Laura S. Kaiser | Director | 13,352 | 0 | 13,352 | 0.8% | 19 May, 2026 |
| 14 | Lynne N. Ward | Director | 11,266 | 0 | 11,266 | 0.7% | 19 May, 2026 |
| 15 | Stephen C. Evans | Director | 10,266 | 0 | 10,266 | 0.7% | 19 May, 2026 |
| 16 | James T. Hogan | Director | 10,152 | 0 | 10,152 | 0.6% | 26 May, 2022 |
| 17 | Michael R. Mcdonnell | Director | 9,852 | 0 | 9,852 | 0.6% | 19 May, 2026 |
| 18 | Sheri Lewis | Evp Of Global Operations | 8,371 | 0 | 8,371 | 0.5% | 09 Sep, 2026 |
| 19 | Silvia M. Perez | Director | 8,040 | 0 | 8,040 | 0.5% | 19 May, 2026 |
| 20 | David Floyd | Director | 0 | 4,880 | 4,880 | 0.3% | 03 Jun, 2025 |
| 21 | Scott R. Ward | Director | 3,457 | 0 | 3,457 | 0.2% | 19 May, 2026 |
| 22 | Christian Adam Smith | Chief Commercial Officer | 0 | 2,220 | 2,220 | 0.1% | 13 May, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 04 Sep, 2026 | Sheri Lewis | Evp Of Global Operations | Acquired A | 8,371 | $0.00 | $0 | 8,371 | Direct |
| 24 Aug, 2026 | Neil W. Peterson | Chief Operating Officer | Disposed S | 7,500 | $90.45 | $678.36K | 18,051 | Direct |
| 24 Aug, 2026 | Michel J. Voigt | Chief Human Resources Officer | Disposed G | 650 | $0.00 | $0 | 45,412 | Direct |
| 04 Aug, 2026 | Neil W. Peterson | Chief Operating Officer | Disposed S | 21,449 | $85.00 | $1.82Mn | 25,551 | Direct |
| 15 Jun, 2026 | Michel J. Voigt | Chief Human Resources Officer | Disposed G | 65 | $0.00 | $0 | 46,062 | Direct |
| 05 Jun, 2026 | Brian G. Lloyd | Chief Legal Officer, Secretary | Disposed G | 2,000 | $0.00 | $0 | 60,132 | Direct |
| 20 May, 2026 | Thomas J. Gunderson | Director | Acquired M | 13,750 | $52.17 | $717.34K | 53,241 | Direct |
| 20 May, 2026 | Thomas J. Gunderson | Director | Acquired M | 7,500 | $52.17 | $391.28K | 60,741 | Direct |
| 20 May, 2026 | Thomas J. Gunderson | Director | Disposed M | 13,750 | $0.00 | $0 | 0 | Direct |
| 20 May, 2026 | Thomas J. Gunderson | Director | Disposed M | 7,500 | $0.00 | $0 | 0 | Direct |
| 18 May, 2026 | Stephen C. Evans | Director | Acquired A | 3,457 | $0.00 | $0 | 10,266 | Direct |
| 18 May, 2026 | Thomas J. Gunderson | Director | Acquired A | 3,457 | $0.00 | $0 | 39,491 | Direct |
| 18 May, 2026 | F. Ann Ed.D. Millner | Director | Acquired A | 3,457 | $0.00 | $0 | 38,000 | Direct |
| 18 May, 2026 | Silvia M. Perez | Director | Acquired A | 3,457 | $0.00 | $0 | 8,040 | Direct |
| 18 May, 2026 | Laura S. Kaiser | Director | Acquired A | 3,457 | $0.00 | $0 | 13,352 | Direct |
| 18 May, 2026 | Lynne N. Ward | Director | Acquired A | 3,457 | $0.00 | $0 | 11,266 | Direct |
| 18 May, 2026 | Scott R. Ward | Director | Acquired A | 3,457 | $0.00 | $0 | 3,457 | Direct |
| 18 May, 2026 | Michael R. Mcdonnell | Director | Acquired A | 3,457 | $0.00 | $0 | 9,852 | Direct |
| 18 May, 2026 | Lonny J. Carpenter | Director | Acquired A | 3,457 | $0.00 | $0 | 20,824 | Direct |
| 11 May, 2026 | Christian Adam Smith | Chief Commercial Officer | Acquired P | 1,626 | $61.00 | $99.19K | 2,220 | Indirect |