MMSI Merit Medical Systems, Inc.
Merit Medical Systems, Inc. (MMSI) Institutional Ownership
What the institutions did with MMSI last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 9.5M | 15.1% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3.5M | 5.5% |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.6M | 4.1% |
| STATE STREET CORP | 2.5M | 3.9% |
| Conestoga Capital Advisors, LLC | 2.0M | 3.2% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.6M | 2.6% |
| FULLER & THALER ASSET MANAGEMENT, INC. | 1.6M | 2.6% |
| DIMENSIONAL FUND ADVISORS LP | 1.5M | 2.3% |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 1.3M | 2.0% |
| CONGRESS ASSET MANAGEMENT CO | 1.2M | 1.9% |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1.1M | 1.8% |
| Greenhouse Funds LLLP | 1.1M | 1.7% |
| CITIGROUP INC | 1.0M | 1.6% |
| FMR LLC | 1.0M | 1.6% |
| WESTWOOD HOLDINGS GROUP INC | 1.0M | 1.6% |
| MORGAN STANLEY | 1.0M | 1.6% |
| NEUBERGER BERMAN GROUP LLC | 1.0M | 1.6% |
| MAVERICK CAPITAL LTD | 978.6K | 1.6% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 958.7K | 1.5% |
| CITADEL ADVISORS LLC | 909.9K | 1.5% |
| ROYAL BANK OF CANADA | 826.9K | 1.3% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 743.9K | 1.2% |
| NORGES BANK | 711.2K | 1.1% |
| NORTHERN TRUST CORP | 709.3K | 1.1% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 679.2K | 1.1% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| NEUBERGER BERMAN GROUP LLC | Increased | 5.6K | 1.0M | +996.6K |
| BlackRock, Inc. | Increased | 8.8M | 9.5M | +630.2K |
| Irenic Capital Management LP | New | 0 | 542.6K | +542.6K |
| Point72 Asset Management, L.P. | Reduced | 741.9K | 203.7K | -538.2K |
| FULLER & THALER ASSET MANAGEMENT, INC. | Reduced | 2.1M | 1.6M | -502.5K |
| AQR CAPITAL MANAGEMENT LLC | Increased | 25.0K | 464.2K | +439.2K |
| Freestone Grove Partners LP | Reduced | 382.9K | 16.6K | -366.3K |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Increased | 777.5K | 1.1M | +360.3K |
| ArrowMark Colorado Holdings LLC | Sold Out | 348.6K | 0 | -348.6K |
| TWO SIGMA INVESTMENTS, LP | Increased | 111.1K | 434.7K | +323.6K |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 655.0K | 958.7K | +303.8K |
| MAVERICK CAPITAL LTD | Increased | 714.1K | 978.6K | +264.5K |
| MORGAN STANLEY | Reduced | 1.3M | 1.0M | -254.1K |
| SG Capital Management LLC | New | 0 | 243.5K | +243.5K |
| J. Goldman & Co LP | New | 0 | 242.8K | +242.8K |
| FRANKLIN RESOURCES INC | Reduced | 259.7K | 17.7K | -242.0K |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Increased | 447.5K | 679.2K | +231.7K |
| MetLife Investment Management, LLC | Increased | 32.0K | 257.4K | +225.3K |
| MARSHALL WACE, LLP | Reduced | 574.4K | 349.2K | -225.2K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 1.2M | 1.5M | +221.5K |
| Boston Trust Walden Corp | Increased | 277.2K | 472.9K | +195.6K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 314.2K | 125.4K | -188.8K |
| Conestoga Capital Advisors, LLC | Reduced | 2.2M | 2.0M | -187.7K |
| Qube Research & Technologies Ltd | Reduced | 194.2K | 12.0K | -182.2K |
| BESSEMER GROUP INC | Reduced | 241.2K | 66.0K | -175.2K |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 303.8K | 143.0K | -160.8K |
| Balyasny Asset Management L.P. | Reduced | 320.7K | 161.8K | -158.9K |
| CONGRESS ASSET MANAGEMENT CO | Increased | 1.0M | 1.2M | +155.1K |
| UBS Group AG | Increased | 340.6K | 495.6K | +155.0K |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Sold Out | 140.0K | 0 | -140.0K |
| GOLDMAN SACHS GROUP INC | Reduced | 647.8K | 508.2K | -139.6K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.5M | 1.6M | +117.6K |
| STATE STREET CORP | Increased | 2.4M | 2.5M | +113.5K |
| Champlain Investment Partners, LLC | Increased | 290.5K | 403.9K | +113.4K |
| Aberdeen Group plc | Increased | 428.3K | 538.2K | +109.9K |
| RAYMOND JAMES FINANCIAL INC | Reduced | 376.8K | 269.2K | -107.5K |
| ROYAL BANK OF CANADA | Reduced | 921.3K | 826.9K | -94.4K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | New | 0 | 88.2K | +88.2K |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | Increased | 1.2M | 1.3M | +80.9K |
| Creative Planning | Increased | 75.1K | 146.9K | +71.8K |
| Edgestream Partners, L.P. | Reduced | 87.5K | 16.7K | -70.8K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 675.4K | 743.9K | +68.5K |
| Campbell & CO Investment Adviser LLC | Sold Out | 68.4K | 0 | -68.4K |
| SEI INVESTMENTS CO | Increased | 228.5K | 296.5K | +68.0K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 2.7M | 2.6M | -65.7K |
| WESTWOOD HOLDINGS GROUP INC | Increased | 946.5K | 1.0M | +64.9K |
| Assenagon Asset Management S.A. | Increased | 205.9K | 270.8K | +64.9K |
| Connor, Clark & Lunn Investment Management Ltd. | Increased | 124.3K | 186.4K | +62.0K |
| Aristotle Capital Boston, LLC | Reduced | 377.6K | 316.5K | -61.0K |
| TUDOR INVESTMENT CORP ET AL | Sold Out | 60.7K | 0 | -60.7K |
| D. E. Shaw & Co., Inc. | Increased | 134.2K | 189.7K | +55.5K |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ | Increased | 420.9K | 476.1K | +55.3K |
| Rockefeller Capital Management L.P. | Reduced | 250.8K | 196.4K | -54.4K |
| Holocene Advisors, LP | Increased | 11.8K | 65.4K | +53.6K |
| CITADEL ADVISORS LLC | Reduced | 962.8K | 909.9K | -52.9K |
| SEIZERT CAPITAL PARTNERS, LLC | Increased | 26.7K | 79.5K | +52.7K |
| Greenhouse Funds LLLP | Reduced | 1.1M | 1.1M | -50.3K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 3.5M | 3.5M | -49.3K |
| OBERWEIS ASSET MANAGEMENT INC/ | Increased | 424.2K | 473.4K | +49.2K |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | New | 0 | 49.1K | +49.1K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.