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 $3.97B 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 $608.95M in its March 31, 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 $751.01M, representing an estimated gain of +23.33% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 46% 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
404
Total Reported Value
$3.97B
Largest Holder
Blackrock, Inc.
Largest Position
$608.95M
Insider Transactions (90d)
4
Latest Filing Quarter
Q2 2026
New Institutional Positions
73
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% | 8,834,315 | $608,949,319 | $751,005,118 | +$142,055,799 | +23.33% | |
| Vanguard Portfolio Management Llc | 0.01% | 3,523,088 | $242,846,456 | $299,497,711 | +$56,651,255 | +23.33% | |
| Vanguard Capital Management Llc | 0.00% | 2,656,163 | $183,089,316 | $225,800,417 | +$42,711,101 | +23.33% | |
| State Street Corp | 0.01% | 2,360,982 | $162,742,489 | $200,707,080 | +$37,964,591 | +23.33% | |
| Fuller & Thaler Asset Management, Inc. | 0.49% | 2,115,526 | $145,823,198 | $179,840,865 | +$34,017,667 | +23.33% | |
| Conestoga Capital Advisors, Llc | 2.99% | 1,979,790 | $137,278,639 | $168,301,948 | +$31,023,309 | +22.60% | |
| Geode Capital Management, Llc | 0.01% | 1,508,374 | $103,989,131 | $128,226,874 | +$24,237,743 | +23.31% | |
| Morgan Stanley | 0.01% | 1,260,959 | $86,917,925 | $107,194,125 | +$20,276,200 | +23.33% | |
| Dimensional Fund Advisors Lp | 0.02% | 1,237,298 | $85,287,444 | $105,182,703 | +$19,895,259 | +23.33% | |
| Nomura Asset Management International Inc. | 0.14% | 1,198,269 | $82,597,000 | $101,864,848 | +$19,267,848 | +23.33% | |
| Congress Asset Management Co | 0.51% | 1,184,337 | $82,121,928 | $100,680,488 | +$18,558,560 | +22.60% | |
| Greenhouse Funds Lllp | 3.67% | 1,122,447 | $77,370,272 | $95,419,219 | +$18,048,947 | +23.33% | |
| Citigroup Inc | 0.05% | 1,062,715 | $73,252,945 | $90,341,402 | +$17,088,457 | +23.33% | |
| Fmr Llc | 0.00% | 1,004,938 | $69,270,369 | $85,429,779 | +$16,159,410 | +23.33% | |
| Citadel Advisors Llc | 0.05% | 962,784 | $66,364,701 | $81,846,268 | +$15,481,567 | +23.33% | |
| Westwood Holdings Group Inc | 0.48% | 946,476 | $65,240,590 | $80,459,925 | +$15,219,335 | +23.33% | |
| Royal Bank Of Canada | 0.01% | 921,330 | $63,507,000 | $78,322,263 | +$14,815,263 | +23.33% | |
| William Blair Investment Management, Llc | 0.18% | 777,494 | $53,592,661 | $66,094,765 | +$12,502,104 | +23.33% | |
| Point72 Asset Management, L.P. | 0.09% | 741,942 | $51,142,062 | $63,072,489 | +$11,930,427 | +23.33% | |
| Maverick Capital Ltd | 0.57% | 714,081 | $49,221,603 | $60,704,026 | +$11,482,423 | +23.33% | |
| Northern Trust Corp | 0.01% | 681,848 | $46,999,782 | $57,963,898 | +$10,964,116 | +23.33% | |
| Charles Schwab Investment Management Inc | 0.01% | 675,449 | $46,558,700 | $57,419,919 | +$10,861,219 | +23.33% | |
| Goldman Sachs Group Inc | 0.01% | 647,794 | $44,652,440 | $55,068,968 | +$10,416,528 | +23.33% | |
| Bank Of America Corp | 0.00% | 580,918 | $40,042,661 | $49,383,839 | +$9,341,178 | +23.33% | |
| Marshall Wace, Llp | 0.04% | 574,436 | $39,595,874 | $48,832,804 | +$9,236,930 | +23.33% | |
| Nuveen, Llc | 0.01% | 546,134 | $37,645,016 | $46,426,851 | +$8,781,835 | +23.33% | |
| Aberdeen Group Plc | 0.05% | 538,196 | $37,318,510 | $45,752,042 | +$8,433,532 | +22.60% | |
| Wells Fargo & Company/Mn | 0.01% | 491,176 | $33,856,762 | $41,754,872 | +$7,898,110 | +23.33% | |
| Fort Washington Investment Advisors Inc | 0.17% | 476,148 | $33,016,102 | $40,477,341 | +$7,461,239 | +22.60% | |
| Boston Trust Walden Corp | 0.25% | 472,856 | $32,787,835 | $40,197,489 | +$7,409,654 | +22.60% | |
| Manufacturers Life Insurance Company, The | 0.03% | 448,308 | $30,901,870 | $38,110,663 | +$7,208,793 | +23.33% | |
| Massachusetts Financial Services Co | 0.01% | 447,451 | $30,842,797 | $38,037,810 | +$7,195,013 | +23.33% | |
| Frontier Capital Management Co Llc | 0.31% | 430,618 | $29,682,499 | $36,606,836 | +$6,924,337 | +23.33% | |
| Nomura Holdings Inc | 0.24% | 425,305 | $29,316,274 | $36,155,178 | +$6,838,904 | +23.33% | |
| Oberweis Asset Management Inc/ | 0.86% | 424,209 | $29,240,726 | $36,062,007 | +$6,821,281 | +23.33% | |
| Vanguard Fiduciary Trust Co | 0.01% | 410,660 | $28,306,794 | $34,910,207 | +$6,603,413 | +23.33% | |
| Bank Of New York Mellon Corp | 0.00% | 383,776 | $26,453,650 | $32,624,798 | +$6,171,148 | +23.33% | |
| Freestone Grove Partners Lp | 0.19% | 382,865 | $26,390,884 | $32,547,354 | +$6,156,470 | +23.33% | |
| Aristotle Capital Boston, Llc | 1.62% | 377,580 | $26,054,873 | $32,098,076 | +$6,043,203 | +23.19% | |
| Arrowmark Colorado Holdings Llc | 0.64% | 348,637 | $24,031,548 | $29,637,631 | +$5,606,083 | +23.33% | |
| Principal Financial Group Inc | 0.01% | 346,748 | $23,901,341 | $29,477,047 | +$5,575,706 | +23.33% | |
| Ubs Group Ag | 0.00% | 340,626 | $23,479,350 | $28,956,616 | +$5,477,266 | +23.33% | |
| Balyasny Asset Management L.P. | 0.04% | 320,659 | $22,103,025 | $27,259,222 | +$5,156,197 | +23.33% | |
| Renaissance Technologies LLC | Jim Simons | 0.03% | 314,212 | $21,658,633 | $26,711,162 | +$5,052,529 | +23.33% |
| Fifth Third Bancorp | 0.04% | 313,026 | $21,576,859 | $26,610,340 | +$5,033,481 | +23.33% | |
| Wellington Management Group Llp | 0.00% | 303,828 | $20,942,864 | $25,828,418 | +$4,885,554 | +23.33% | |
| Raymond James Financial Inc | 0.01% | 300,411 | $20,685,141 | $25,537,939 | +$4,852,798 | +23.46% | |
| Champlain Investment Partners, Llc | 0.25% | 290,500 | $20,024,165 | $24,695,405 | +$4,671,240 | +23.33% | |
| Envestnet Asset Management Inc | 0.00% | 264,744 | $18,248,806 | $22,505,887 | +$4,257,081 | +23.33% | |
| Franklin Resources Inc | 0.00% | 259,696 | $17,900,845 | $22,076,757 | +$4,175,912 | +23.33% |
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.