MERIT MEDICAL SYSTEMS INC (MMSI) Institutional Shareholders
MERIT MEDICAL SYSTEMS INC (MMSI) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $4.32B in MMSI holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of MMSI tracked by InsiderSet, reporting ownership valued at approximately $656.27M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $815.28M, representing an estimated gain of +24.23% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 44% of the total disclosed MMSI value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in MERIT MEDICAL SYSTEMS INC (MMSI).
This page ranks the largest institutional MMSI shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
392
Total Reported Value
$4.32B
Largest Holder
Blackrock, Inc.
Largest Position
$656.27M
Insider Transactions (90d)
4
Latest Filing Quarter
Q2 2026
New Institutional Positions
41
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 9,464,542 | $656,271,332 | $815,275,648 | +$159,004,316 | +24.23% | |
| Vanguard Portfolio Management Llc | 0.01% | 3,473,833 | $240,875,580 | $299,235,975 | +$58,360,395 | +24.23% | |
| Vanguard Capital Management Llc | 0.00% | 2,590,454 | $179,622,080 | $223,141,708 | +$43,519,628 | +24.23% | |
| State Street Corp | 0.01% | 2,474,512 | $171,602,462 | $213,154,464 | +$41,552,002 | +24.21% | |
| Conestoga Capital Advisors, Llc | 2.99% | 1,979,790 | $137,278,639 | $170,539,111 | +$33,260,472 | +24.23% | |
| Geode Capital Management, Llc | 0.01% | 1,625,950 | $112,761,894 | $140,059,333 | +$27,297,439 | +24.21% | |
| Fuller & Thaler Asset Management, Inc. | 0.30% | 1,613,002 | $111,845,541 | $138,943,992 | +$27,098,451 | +24.23% | |
| Dimensional Fund Advisors Lp | 0.02% | 1,458,823 | $101,159,013 | $125,663,013 | +$24,504,000 | +24.22% | |
| Nomura Asset Management International Inc. | 0.13% | 1,279,152 | $88,696,000 | $110,186,153 | +$21,490,153 | +24.23% | |
| Congress Asset Management Co | 0.51% | 1,184,337 | $82,121,928 | $102,018,789 | +$19,896,861 | +24.23% | |
| William Blair Investment Management, Llc | 0.24% | 1,137,790 | $78,894,359 | $98,009,231 | +$19,114,872 | +24.23% | |
| Greenhouse Funds Lllp | 3.91% | 1,072,098 | $74,339,275 | $92,350,522 | +$18,011,247 | +24.23% | |
| Citigroup Inc | 0.03% | 1,022,497 | $70,899,942 | $88,077,892 | +$17,177,950 | +24.23% | |
| Fmr Llc | 0.00% | 1,012,810 | $70,228,249 | $87,243,453 | +$17,015,204 | +24.23% | |
| Westwood Holdings Group Inc | 0.53% | 1,011,377 | $70,128,880 | $87,120,015 | +$16,991,135 | +24.23% | |
| Morgan Stanley | 0.00% | 1,006,891 | $69,817,910 | $86,733,591 | +$16,915,681 | +24.23% | |
| Neuberger Berman Group Llc | 0.05% | 1,002,168 | $69,490,329 | $86,326,752 | +$16,836,423 | +24.23% | |
| Maverick Capital Ltd | 0.61% | 978,617 | $67,857,303 | $84,298,068 | +$16,440,765 | +24.23% | |
| Price T Rowe Associates Inc | 0.01% | 958,736 | $66,480,000 | $82,585,519 | +$16,105,519 | +24.23% | |
| Citadel Advisors Llc | 0.04% | 909,863 | $63,089,900 | $78,375,599 | +$15,285,699 | +24.23% | |
| Royal Bank Of Canada | 0.01% | 826,944 | $57,340,000 | $71,232,956 | +$13,892,956 | +24.23% | |
| Charles Schwab Investment Management Inc | 0.01% | 743,937 | $51,584,592 | $64,082,733 | +$12,498,141 | +24.23% | |
| Norges Bank | 0.00% | 711,160 | $49,311,834 | $61,259,322 | +$11,947,488 | +24.23% | |
| Northern Trust Corp | 0.01% | 709,267 | $49,180,575 | $61,096,259 | +$11,915,684 | +24.23% | |
| Massachusetts Financial Services Co | 0.01% | 679,195 | $47,095,381 | $58,505,857 | +$11,410,476 | +24.23% | |
| Jpmorgan Chase & Co | 0.00% | 644,037 | $45,333,441 | $55,477,347 | +$10,143,906 | +22.38% | |
| Nuveen, Llc | 0.01% | 594,794 | $41,243,018 | $51,235,555 | +$9,992,537 | +24.23% | |
| Irenic Capital Management Lp | 2.71% | 542,589 | $37,623,121 | $46,738,616 | +$9,115,495 | +24.23% | |
| Aberdeen Group Plc | 0.05% | 538,196 | $37,318,510 | $46,360,203 | +$9,041,693 | +24.23% | |
| Bank Of America Corp | 0.00% | 534,412 | $37,056,114 | $46,034,250 | +$8,978,136 | +24.23% | |
| Wells Fargo & Company/Mn | 0.01% | 523,502 | $36,299,629 | $45,094,462 | +$8,794,833 | +24.23% | |
| Goldman Sachs Group Inc | 0.00% | 508,223 | $35,240,182 | $43,778,329 | +$8,538,147 | +24.23% | |
| Ubs Group Ag | 0.01% | 495,598 | $34,364,766 | $42,690,812 | +$8,326,046 | +24.23% | |
| Manufacturers Life Insurance Company, The | 0.03% | 484,435 | $33,590,723 | $41,729,231 | +$8,138,508 | +24.23% | |
| Fort Washington Investment Advisors Inc | 0.17% | 476,148 | $33,016,102 | $41,015,389 | +$7,999,287 | +24.23% | |
| Oberweis Asset Management Inc/ | 0.68% | 473,409 | $32,826,180 | $40,779,451 | +$7,953,271 | +24.23% | |
| Boston Trust Walden Corp | 0.25% | 472,856 | $32,787,835 | $40,731,816 | +$7,943,981 | +24.23% | |
| Frontier Capital Management Co Llc | 0.30% | 468,540 | $32,488,564 | $40,360,036 | +$7,871,472 | +24.23% | |
| Aqr Capital Management Llc | 0.01% | 464,201 | $32,187,698 | $39,986,274 | +$7,798,576 | +24.23% | |
| Nomura Holdings Inc | 0.13% | 440,736 | $30,560,634 | $37,964,999 | +$7,404,365 | +24.23% | |
| Two Sigma Investments, Lp | 0.02% | 434,687 | $30,141,197 | $37,443,938 | +$7,302,741 | +24.23% | |
| Bank Of New York Mellon Corp | 0.00% | 410,578 | $28,469,500 | $35,367,189 | +$6,897,689 | +24.23% | |
| Champlain Investment Partners, Llc | 0.72% | 403,922 | $28,007,951 | $34,793,841 | +$6,785,890 | +24.23% | |
| Vanguard Fiduciary Trust Co | 0.01% | 397,613 | $27,570,485 | $34,250,384 | +$6,679,899 | +24.23% | |
| Principal Financial Group Inc | 0.01% | 350,627 | $24,312,476 | $30,203,010 | +$5,890,534 | +24.23% | |
| Marshall Wace, Llp | 0.02% | 349,216 | $24,214,638 | $30,081,466 | +$5,866,828 | +24.23% | |
| Aristotle Capital Boston, Llc | 1.47% | 316,536 | $21,948,641 | $27,266,411 | +$5,317,770 | +24.23% | |
| Sei Investments Co | 0.02% | 296,546 | $20,562,536 | $25,544,472 | +$4,981,936 | +24.23% | |
| Fifth Third Bancorp | 0.03% | 296,465 | $20,556,886 | $25,537,495 | +$4,980,609 | +24.23% | |
| Envestnet Asset Management Inc | 0.00% | 281,386 | $19,510,645 | $24,238,590 | +$4,727,945 | +24.23% |
Frequently asked questions about MMSI
Who owns the most MMSI stock?
The largest holders of MMSI are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for MERIT MEDICAL SYSTEMS INC (MMSI).
Is MMSI widely held by superinvestors?
Many widely followed stocks like MMSI appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly MMSI is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.