Merit Medical Systems Inc (MMSI) · Insider trading
What Merit Medical Systems's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.
Bought, 12 months
$573,304
5 insiders, 5 trades
Sold, 12 months
$8.45M
3 insiders, 5% under a plan
Net, 12 months
−$7.88M
bought less sold
Latest filing
2026-09-09
filings read to 2026-10-19
Who traded, two years
| Insider | Bought | Sold | Trades | Last trade | Holds after |
|---|---|---|---|---|---|
| Lampropoulos Fred P.Director, Executive Chairman | – | $12.63M | 12 | 2025-11-25 | 1,019,955 |
| Parra Raul Jr.CFO AND TREASURER | $91,515 | $6.66M | 6 | 2026-05-06 | 58,843 |
| Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARY | $125,260 | $5.57M | 3 | 2026-05-07 | – |
| Peterson Neil W.CHIEF OPERATING OFFICER | – | $4.49M | 6 | 2026-08-24 | 18,051 |
| Millner F. AnnDirector | – | $3.32M | 2 | 2025-05-15 | 34,543 |
| Voigt Michel J.CHIEF HUMAN RESOURCES OFFICER | $136,462 | $1.38M | 2 | 2026-05-05 | – |
| Ward Lynne N.Director | – | $785,267 | 3 | 2026-05-07 | 7,809 |
| Evans Stephen C.Director | – | $526,550 | 1 | 2025-03-03 | 4,657 |
| Floyd DavidDirector | – | $330,972 | 1 | 2025-05-30 | – |
| McDonnell Michael R.Director | – | $330,418 | 2 | 2025-06-02 | 6,395 |
| Aronson Martha GoldbergDirector, President and CEO | $120,880 | – | 1 | 2026-05-06 | 49,792 |
| Smith Christian AdamChief Commercial Officer | $99,186 | – | 1 | 2026-05-11 | – |
Open-market purchases and sales
Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.
| Date | Insider | Trade | Shares | Price | Value | Holds after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-24 | Peterson Neil W.CHIEF OPERATING OFFICER | Sale | 7,500 | 90.45 | $678,375 | 18,051 | Form 4 |
| 2026-08-04 | Peterson Neil W.CHIEF OPERATING OFFICER | Sale | 21,449 | 85.00 | $1.82M | 25,551 | Form 4 |
| 2026-05-11 | Smith Christian AdamChief Commercial Officer | Buyindirect | 1,626 | 61.00 | $99,186 | 2,220 | Form 4 |
| 2026-05-07 | Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARY | Buyindirect | 2,000 | 62.63 | $125,260 | 2,000 | Form 4 |
| 2026-05-07 | Ward Lynne N.Director | Sale | 5,000 | 62.61 | $313,050 | 7,809 | Form 4 |
| 2026-05-06 | Aronson Martha GoldbergDirector, President and CEO | Buy | 2,000 | 60.44 | $120,880 | 49,792 | Form 4 |
| 2026-05-06 | Parra Raul Jr.CFO AND TREASURER | Buy | 1,500 | 61.01 | $91,515 | 58,843 | Form 4 |
| 2026-05-05 | Voigt Michel J.CHIEF HUMAN RESOURCES OFFICER | Buyindirect | 2,250 | 60.65 | $136,462 | 2,265 | Form 4 |
| 2026-01-06 | Peterson Neil W.CHIEF OPERATING OFFICER | Saleplan | 5,000 | 90.00 | $450,000 | 28,369 | Form 4 |
| 2025-11-25 | Lampropoulos Fred P.Director, Executive Chairman | Sale | 10,000 | 88.04 | $880,400 | 1,019,955 | Form 4 |
| 2025-11-21 | Lampropoulos Fred P.Director, Executive Chairman | Sale | 25,000 | 87.31 | $2.18M | 1,029,955 | Form 4 |
| 2025-11-20 | Lampropoulos Fred P.Director, Executive Chairman | Sale | 20,000 | 85.13 | $1.70M | 1,054,955 | Form 4 |
| 2025-11-18 | Lampropoulos Fred P.Director, Executive Chairman | Sale | 5,000 | 84.83 | $424,150 | 1,074,955 | Form 4 |
| 2025-08-22 | Ward Lynne N.Director | Sale | 3,000 | 88.56 | $265,680 | 12,809 | Form 4 |
| 2025-08-11 | Ward Lynne N.Director | Sale | 2,433 | 84.89 | $206,537 | 12,809 | Form 4 |
| 2025-06-13 | Parra Raul Jr.CFO AND TREASURER | Sale | 15,181 | 93.75 | $1.42M | 24,201 | Form 4 |
| 2025-06-10 | Lampropoulos Fred P.Director, President and CEO | Sale | 400 | 95.61 | $38,244 | 1,045,628 | Form 4 |
| 2025-06-05 | Lampropoulos Fred P.Director, President and CEO | Sale | 10,000 | 95.19 | $951,900 | 1,046,028 | Form 4 |
| 2025-06-02 | McDonnell Michael R.Director | Saleplan | 1,750 | 94.51 | $165,392 | 6,395 | Form 4 |
| 2025-05-30 | Lampropoulos Fred P.Director, President and CEO | Sale | 10,000 | 95.12 | $951,200 | 1,056,028 | Form 4 |
| 2025-05-30 | Floyd DavidDirector | Saleindirect | 3,515 | 94.16 | $330,972 | 4,880 | Form 4 |
| 2025-05-30 | McDonnell Michael R.Director | Saleplan | 1,750 | 94.30 | $165,025 | 8,145 | Form 4 |
| 2025-05-27 | Lampropoulos Fred PDirector, President and CEO | Sale | 20,000 | 96.54 | $1.93M | 1,066,028 | Form 4 |
| 2025-05-15 | Millner F. AnnDirector | Saleplan | 21,250 | 96.47 | $2.05M | 34,543 | Form 4 |
| 2025-04-01 | Peterson NeilCHIEF OPERATING OFFICER | Saleplan | 5,000 | 104.53 | $522,650 | 28,369 | Form 4 |
| 2025-03-05 | Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARY | Sale | 30,000 | 102.90 | $3.09M | 38,945 | Form 4 |
| 2025-03-05 | Parra Raul Jr.CFO AND TREASURER | Sale | 5,361 | 103.58 | $555,292 | 24,201 | Form 4 |
| 2025-03-05 | Lampropoulos Fred PDirector, President and CEO | Sale | 11,320 | 104.05 | $1.18M | 1,106,028 | Form 4 |
| 2025-03-05 | Lampropoulos Fred PDirector, President and CEO | Sale | 20,000 | 103.75 | $2.08M | 1,086,028 | Form 4 |
| 2025-03-05 | Lampropoulos Fred PDirector, President and CEO | Saleindirect | 410 | 103.75 | $42,511 | 10,324 | Form 4 |
| 2025-03-05 | Lampropoulos Fred PDirector, President and CEO | Saleindirect | 2,590 | 103.75 | $268,712 | 7,734 | Form 4 |
| 2025-03-03 | Evans Stephen C.Director | Sale | 5,000 | 105.31 | $526,550 | 4,657 | Form 4 |
| 2025-03-03 | Peterson NeilCHIEF OPERATING OFFICER | Saleplan | 5,000 | 105.00 | $525,000 | 28,369 | Form 4 |
| 2025-02-28 | Parra Raul Jr.CFO AND TREASURER | Saleplan | 12,451 | 98.81 | $1.23M | 24,201 | Form 4 |
| 2025-02-28 | Voigt Michel JamesCHIEF HUMAN RESOURCES OFFICER | Sale | 13,809 | 99.68 | $1.38M | 22,399 | Form 4 |
| 2025-02-28 | Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARY | Sale | 25,000 | 99.50 | $2.49M | 38,993 | Form 4 |
| 2024-11-15 | Millner F. AnnDirector | Saleplan | 12,500 | 101.55 | $1.27M | 32,391 | Form 4 |
| 2024-11-07 | Parra Raul Jr.CFO AND TREASURER | Sale | 5,361 | 102.18 | $547,787 | 16,361 | Form 4 |
| 2024-11-05 | Parra Raul Jr.CFO AND TREASURER | Sale | 29,646 | 98.02 | $2.91M | 16,361 | Form 4 |
| 2024-11-05 | Peterson NeilCHIEF OPERATING OFFICER | Sale | 5,000 | 98.00 | $490,000 | 14,819 | Form 4 |
Grants, exercises and other transactions
Pay, tax and paperwork rather than a choice to trade at the market price. Two years.
46 × grant or award26 × option exercise15 × shares withheld for tax7 × gift
Show them
| Date | Insider | What | Shares | Price | Holds after | Filing |
|---|---|---|---|---|---|---|
| 2026-09-04 | Lewis SheriEVP of Global Operations | Grant or award A | +8,371 | – | 8,371 | Form 4 |
| 2026-08-24 | Voigt Michel J.CHIEF HUMAN RESOURCES OFFICER | Gift G | −650 | – | 45,412 | Form 4 |
| 2026-06-15 | Voigt Michel J.CHIEF HUMAN RESOURCES OFFICER | Gift G | −65 | – | 46,062 | Form 4 |
| 2026-06-05 | Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARY | Gift G | −2,000 | – | 60,132 | Form 4 |
| 2026-05-20 | Gunderson Thomas J.Director | Option exercise M | +13,750 | 52.17 | 53,241 | Form 4 |
| 2026-05-20 | Gunderson Thomas J.Director | Option exercise M | +7,500 | 52.17 | 60,741 | Form 4 |
| 2026-05-18 | McDonnell Michael R.Director | Grant or award A | +3,457 | – | 9,852 | Form 4 |
| 2026-05-18 | Ward Scott R.Director | Grant or award A | +3,457 | – | 3,457 | Form 4 |
| 2026-05-18 | Carpenter Lonny J.Director | Grant or award A | +3,457 | – | 20,824 | Form 4 |
| 2026-05-18 | Millner F. Ann Ed.D.Director | Grant or award A | +3,457 | – | 38,000 | Form 4 |
| 2026-05-18 | Gunderson Thomas J.Director | Grant or award A | +3,457 | – | 39,491 | Form 4 |
| 2026-05-18 | Kaiser Laura S.Director | Grant or award A | +3,457 | – | 13,352 | Form 4 |
| 2026-05-18 | Ward Lynne N.Director | Grant or award A | +3,457 | – | 11,266 | Form 4 |
| 2026-05-18 | Evans Stephen C.Director | Grant or award A | +3,457 | – | 10,266 | Form 4 |
| 2026-05-18 | Perez Silvia M.Director | Grant or award A | +3,457 | – | 8,040 | Form 4 |
| 2026-02-26 | Aronson Martha GoldbergDirector, President and CEO | Grant or award A | +28,198 | – | 47,792 | Form 4 |
| 2026-02-26 | Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARY | Grant or award A | +10,254 | – | 44,499 | Form 4 |
| 2026-02-26 | Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARY | Grant or award A | +6,409 | – | 50,908 | Form 4 |
| 2026-02-26 | Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARY | Grant or award A | +17,002 | – | 67,910 | Form 4 |
| 2026-02-26 | Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARY | Shares withheld for tax F | −5,778 | 78.02 | 62,132 | Form 4 |
| 2026-02-26 | Parra Raul Jr.CFO AND TREASURER | Grant or award A | +12,305 | – | 36,506 | Form 4 |
| 2026-02-26 | Parra Raul Jr.CFO AND TREASURER | Grant or award A | +9,613 | – | 46,119 | Form 4 |
| 2026-02-26 | Parra Raul Jr.CFO AND TREASURER | Grant or award A | +17,002 | – | 63,121 | Form 4 |
| 2026-02-26 | Parra Raul Jr.CFO AND TREASURER | Shares withheld for tax F | −5,778 | 78.02 | 57,343 | Form 4 |
| 2026-02-26 | Voigt Michel J.CHIEF HUMAN RESOURCES OFFICER | Grant or award A | +7,690 | – | 29,414 | Form 4 |
| 2026-02-26 | Voigt Michel J.CHIEF HUMAN RESOURCES OFFICER | Grant or award A | +6,409 | – | 35,823 | Form 4 |
| 2026-02-26 | Voigt Michel J.CHIEF HUMAN RESOURCES OFFICER | Grant or award A | +17,002 | – | 52,825 | Form 4 |
| 2026-02-26 | Voigt Michel J.CHIEF HUMAN RESOURCES OFFICER | Shares withheld for tax F | −6,698 | 78.02 | 46,127 | Form 4 |
| 2026-02-26 | Peterson Neil W.CHIEF OPERATING OFFICER | Grant or award A | +7,690 | – | 36,059 | Form 4 |
| 2026-02-26 | Peterson Neil W.CHIEF OPERATING OFFICER | Grant or award A | +17,002 | – | 53,061 | Form 4 |
| 2026-02-26 | Peterson Neil W.CHIEF OPERATING OFFICER | Shares withheld for tax F | −6,061 | 78.02 | 47,000 | Form 4 |
| 2026-02-26 | Smith Christian AdamChief Commercial Officer | Grant or award A | +8,203 | – | 19,181 | Form 4 |
| 2026-02-26 | Smith Christian AdamChief Commercial Officer | Grant or award A | +6,409 | – | 25,590 | Form 4 |
| 2026-02-26 | Smith Christian AdamChief Commercial Officer | Grant or award A | +6,762 | – | 32,352 | Form 4 |
| 2026-02-26 | Smith Christian AdamChief Commercial Officer | Shares withheld for tax F | −2,018 | 78.02 | 30,334 | Form 4 |
| 2026-01-06 | Peterson Neil W.CHIEF OPERATING OFFICER | Option exercise M | +5,000 | 54.40 | 33,369 | Form 4 |
| 2025-10-03 | Aronson Martha GoldbergDirector, President and CEO | Grant or award A | +19,594 | – | 19,594 | Form 4/A |
| 2025-08-29 | Lampropoulos Fred P.Director, President and CEO | Option exercise M | +159,151 | 55.73 | 1,204,779 | Form 4 |
| 2025-08-29 | Lampropoulos Fred P.Director, President and CEO | Shares withheld for tax F | −124,824 | 90.54 | 1,079,955 | Form 4 |
| 2025-08-29 | Lampropoulos Fred P.Director, President and CEO | Option exercise M | +2,000 | 55.73 | 9,734 | Form 4 |
| 2025-08-29 | Lampropoulos Fred P.Director, President and CEO | Shares withheld for tax F | −1,454 | 90.54 | 8,280 | Form 4 |
| 2025-08-22 | Ward Lynne N.Director | Option exercise M | +3,000 | 34.46 | 15,809 | Form 4 |
| 2025-08-11 | Ward Lynne N.Director | Option exercise M | +2,433 | 34.46 | 15,242 | Form 4 |
| 2025-06-13 | Parra Raul Jr.CFO AND TREASURER | Option exercise M | +9,681 | 56.25 | 33,882 | Form 4 |
| 2025-06-13 | Parra Raul Jr.CFO AND TREASURER | Option exercise M | +5,500 | 65.03 | 39,382 | Form 4 |
| 2025-06-02 | Voigt Michel J.CHIEF HUMAN RESOURCES OFFICER | Gift G | −55 | – | 21,724 | Form 4 |
| 2025-05-15 | Perez SilviaDirector | Grant or award A | +2,152 | – | 4,583 | Form 4 |
| 2025-05-15 | Carpenter Lonny JDirector | Grant or award A | +2,152 | – | 17,367 | Form 4 |
| 2025-05-15 | Evans Stephen C.Director | Grant or award A | +2,152 | – | 6,809 | Form 4 |
| 2025-05-15 | Floyd DavidDirector | Grant or award A | +2,152 | – | 11,033 | Form 4 |
| 2025-05-15 | Floyd DavidDirector | Grant or award A | +2,152 | – | 11,033 | Form 4 |
| 2025-05-15 | Kaiser Laura S.Director | Grant or award A | +2,152 | – | 9,895 | Form 4 |
| 2025-05-15 | McDonnell Michael RDirector | Grant or award A | +2,152 | – | 9,895 | Form 4 |
| 2025-05-15 | Ward LynneDirector | Grant or award A | +2,152 | – | 12,809 | Form 4 |
| 2025-05-15 | Gunderson Thomas JamesDirector | Grant or award A | +2,152 | – | 36,034 | Form 4 |
| 2025-05-15 | Millner F. AnnDirector | Grant or award A | +2,152 | – | 34,543 | Form 4 |
| 2025-05-15 | Millner F. AnnDirector | Option exercise M | +21,250 | 52.17 | 55,793 | Form 4 |
| 2025-04-01 | Peterson NeilCHIEF OPERATING OFFICER | Option exercise M | +5,000 | 54.40 | 33,369 | Form 4 |
| 2025-03-13 | Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARY | Gift G | −4,700 | – | 34,245 | Form 4 |
| 2025-03-05 | Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARY | Option exercise M | +30,000 | 55.73 | 68,945 | Form 4 |
| 2025-03-05 | Parra Raul Jr.CFO AND TREASURER | Option exercise M | +5,361 | 37.71 | 29,562 | Form 4 |
| 2025-03-04 | Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARY | Gift G | −48 | – | 38,945 | Form 4 |
| 2025-03-04 | Voigt Michel JamesCHIEF HUMAN RESOURCES OFFICER | Gift G | −620 | – | 21,779 | Form 4 |
| 2025-03-03 | Peterson NeilCHIEF OPERATING OFFICER | Option exercise M | +5,000 | 54.40 | 33,369 | Form 4 |
| 2025-02-28 | Gunderson Thomas JamesDirector | Option exercise M | +25,000 | 50.50 | 46,688 | Form 4 |
| 2025-02-28 | Gunderson Thomas JamesDirector | Shares withheld for tax F | −12,806 | 99.95 | 33,882 | Form 4 |
| 2025-02-28 | Parra Raul Jr.CFO AND TREASURER | Grant or award A | +7,840 | – | 36,652 | Form 4 |
| 2025-02-28 | Voigt Michel JamesCHIEF HUMAN RESOURCES OFFICER | Grant or award A | +5,488 | – | 22,399 | Form 4 |
| 2025-02-28 | Voigt Michel JamesCHIEF HUMAN RESOURCES OFFICER | Option exercise M | +7,261 | 56.25 | 29,660 | Form 4 |
| 2025-02-28 | Voigt Michel JamesCHIEF HUMAN RESOURCES OFFICER | Option exercise M | +4,048 | 65.03 | 33,708 | Form 4 |
| 2025-02-28 | Voigt Michel JamesCHIEF HUMAN RESOURCES OFFICER | Option exercise M | +2,500 | 70.58 | 36,208 | Form 4 |
| 2025-02-28 | Lampropoulos Fred PDirector, President and CEO | Grant or award A | +20,384 | – | 1,105,389 | Form 4 |
| 2025-02-28 | Lampropoulos Fred PDirector, President and CEO | Option exercise M | +38,002 | 44.80 | 1,143,391 | Form 4 |
| 2025-02-28 | Lampropoulos Fred PDirector, President and CEO | Shares withheld for tax F | −26,043 | 102.04 | 1,117,348 | Form 4 |
| 2025-02-28 | Lampropoulos Fred PDirector, President and CEO | Option exercise M | +4,000 | 44.80 | 13,228 | Form 4 |
| 2025-02-28 | Lampropoulos Fred PDirector, President and CEO | Shares withheld for tax F | −2,494 | 102.04 | 10,734 | Form 4 |
| 2025-02-28 | Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARY | Grant or award A | +7,056 | – | 38,993 | Form 4 |
| 2025-02-28 | Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARY | Option exercise M | +25,000 | 44.80 | 63,993 | Form 4 |
| 2025-02-28 | Peterson NeilCHIEF OPERATING OFFICER | Grant or award A | +6,272 | – | 28,369 | Form 4 |
| 2025-02-27 | Parra Raul Jr.CFO AND TREASURER | Grant or award A | +20,760 | – | 37,121 | Form 4 |
| 2025-02-27 | Parra Raul Jr.CFO AND TREASURER | Shares withheld for tax F | −8,309 | 98.50 | 28,812 | Form 4 |
| 2025-02-27 | Voigt Michel JamesCHIEF HUMAN RESOURCES OFFICER | Grant or award A | +11,533 | – | 21,441 | Form 4 |
| 2025-02-27 | Voigt Michel JamesCHIEF HUMAN RESOURCES OFFICER | Shares withheld for tax F | −4,530 | 98.50 | 16,911 | Form 4 |
| 2025-02-27 | Lampropoulos Fred PDirector, President and CEO | Grant or award A | +30,755 | – | 1,098,506 | Form 4 |
| 2025-02-27 | Lampropoulos Fred PDirector, President and CEO | Shares withheld for tax F | −13,501 | 98.50 | 1,085,005 | Form 4 |
| 2025-02-27 | Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARY | Grant or award A | +11,533 | – | 36,135 | Form 4 |
| 2025-02-27 | Lloyd Brian G.CHIEF LEGAL OFFICER, SECRETARY | Shares withheld for tax F | −4,198 | 98.50 | 31,937 | Form 4 |
| 2025-02-27 | Peterson NeilCHIEF OPERATING OFFICER | Grant or award A | +11,533 | – | 26,352 | Form 4 |
| 2025-02-27 | Peterson NeilCHIEF OPERATING OFFICER | Shares withheld for tax F | −4,255 | 98.50 | 22,097 | Form 4 |
| 2024-11-15 | Millner F. AnnDirector | Option exercise M | +12,500 | 50.50 | 44,891 | Form 4 |
| 2024-11-07 | Parra Raul Jr.CFO AND TREASURER | Option exercise M | +5,361 | 37.71 | 21,722 | Form 4 |
| 2024-11-05 | Parra Raul Jr.CFO AND TREASURER | Option exercise M | +4,000 | 44.80 | 16,007 | Form 4 |
| 2024-11-05 | Parra Raul Jr.CFO AND TREASURER | Option exercise M | +30,000 | 55.73 | 46,007 | Form 4 |
| 2024-11-05 | Peterson NeilCHIEF OPERATING OFFICER | Option exercise M | +5,000 | 54.40 | 19,819 | Form 4 |
How to read it
- Buy, sale
- Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
- Plan
- A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
- Holds after
- The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
- Value
- Shares times the price the form reports, which is often an average over several fills on the day.
Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.