Merit Medical Systems Inc
Ownership
Ownership Structure
Who owns Merit Medical Systems Inc (MMSI)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 97.6% of the shares are freely tradable; institutional investors hold 104.6%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 14.80 | 8,834,315 | +1.5 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 5.90 | 3,523,088 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.45 | 2,656,163 | +0.0 | 03/31/2026 |
| State Street Corp | 3.95 | 2,360,982 | +5.8 | 03/31/2026 |
| Fuller & Thaler Asset Management Inc | 3.54 | 2,115,526 | -49.1 | 03/31/2026 |
| Conestoga Capital Advisors, LLC | 3.32 | 1,979,790 | -8.7 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 6.09 | 3,636,284 | +0.0 | 08/31/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.03 | 1,810,569 | +0.4 | 07/31/2026 |
| FullerThaler Behavioral Sm-Cp Eq R6 | 2.59 | 1,543,773 | +20.5 | 06/30/2026 |
| FullerThaler Behavioral Small-Cap Equity | 2.59 | 1,543,773 | +20.5 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Voigt Michel J. | CHIEF HUMAN RESOURCES OFFICER | 45,412 | 3,887,267 $ | Aug 24, 2026 | direct |
| Peterson Neil W. | CHIEF OPERATING OFFICER | 18,051 | 1,545,166 $ | Aug 24, 2026 | direct |
| Lewis Sheri | EVP of Global Operations | 8,371 | 716,558 $ | Sep 4, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 4, 2026 | Lewis Sheri | EVP of Global Operations | Other | 8,371 | 0.00 | – |
| Aug 24, 2026 | Peterson Neil W. | CHIEF OPERATING OFFICER | Sell | 7,500 | 90.45 | 678,360 |
| Aug 24, 2026 | Voigt Michel J. | CHIEF HUMAN RESOURCES OFFICER | Other | 650 | 0.00 | – |
| Aug 4, 2026 | Peterson Neil W. | CHIEF OPERATING OFFICER | Sell | 21,449 | 85.00 | 1,823,165 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.