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MMSI in the 13F filings

Merit Med Sys Inc · CUSIP 589889104

Sector · Medical devices and instrumentsTheme · Healthcare: biopharma and medtech· L3VLUP-definedTheme · Surgical, medical and electromedical devices
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
32
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 6 listed it in both
Shares listed
7,718,298
combined, among listed positions
Reported value
$533m
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 20 buyers (opened or added shares) and 13 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -732,752.

Managers listing MMSI in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

32 of 32 holders

ActionFiling
Fidelity (FMR LLC)1,004,938$69munder 0.1%Trimmed-766,64115 May 2026 (the filing on sec.gov)
Citadel Advisors LLC962,784$66munder 0.1%Trimmed-130,82315 May 2026 (the filing on sec.gov)
Point72 Asset Management LP741,942$51m0.07%Added+305,41115 May 2026 (the filing on sec.gov)
Maverick Capital Ltd714,081$49m0.57%Added+227,91515 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc654,970$45munder 0.1%Added+10,10715 May 2026 (the filing on sec.gov)
Marshall Wace LLP574,436$40munder 0.1%Added+427,92515 May 2026 (the filing on sec.gov)
MFS Investment Management447,451$31munder 0.1%Newnew14 May 2026 (the filing on sec.gov)
Freestone Grove Partners LP382,865$26m0.19%Added+317,83015 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC320,659$22munder 0.1%Added+187,22115 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC314,212$22munder 0.1%Added+188,00014 May 2026 (the filing on sec.gov)
Wellington Management Group LLP303,828$21munder 0.1%Trimmed-1,023,18515 May 2026 (the filing on sec.gov)
Invesco Ltd182,383$13munder 0.1%Trimmed-310,30412 May 2026 (the filing on sec.gov)
Man Group PLC177,797$12munder 0.1%Added+61,70915 May 2026 (the filing on sec.gov)
Winton Group Ltd158,783$11m0.38%Added+19,92712 May 2026 (the filing on sec.gov)
Walleye Capital LLC150,963$10munder 0.1%Trimmed-408,84813 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.134,156$9.2munder 0.1%Trimmed-63,53515 May 2026 (the filing on sec.gov)
Two Sigma Investments LP111,067$7.7munder 0.1%Trimmed-268,67315 May 2026 (the filing on sec.gov)
AllianceBernstein LP63,994$5.6munder 0.1%Trimmed-3,95215 May 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP61,423$4.2munder 0.1%Added+51,80515 May 2026 (the filing on sec.gov)
Tudor Investment Corp60,679$4.2munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Millennium Management LLC45,355$3.1munder 0.1%Added+19,09415 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd27,531$1.9munder 0.1%Held018 May 2026 (the filing on sec.gov)
AQR Capital Management LLC24,990$1.7munder 0.1%Added+23115 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC23,438$1.6munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP23,305$1.6munder 0.1%Added+9,34015 May 2026 (the filing on sec.gov)
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Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (5)

Exited (3)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
7 in Q3 2024 to 6 in Q2 2026

Tracked managers listing it, at least.

024682014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
MMSI by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20131$23mn.a.n.a.
Q3 20131$24mn.a.n.a.
Q4 20132$31mn.a.n.a.
Q1 20142$27mn.a.n.a.
Q2 20142$27mn.a.n.a.
Q3 20141$21mn.a.n.a.
Q4 20141$10mn.a.n.a.
Q1 20152$2.9mn.a.n.a.
Q2 20151$5.4mn.a.n.a.
Q3 20153$19mn.a.n.a.
Q4 20151$12mn.a.n.a.
Q1 20161$6.7mn.a.n.a.
Q2 20161$3.1mn.a.n.a.
Q3 20162$9.1mn.a.n.a.
Q4 20161$7.7mn.a.n.a.
Q1 20172$6.8mn.a.n.a.
Q2 20173$83mn.a.n.a.
Q3 20174$133mn.a.n.a.
Q4 20173$89mn.a.n.a.
Q1 20183$36mn.a.n.a.
Q2 20182$79mn.a.n.a.
Q3 20184$173mn.a.n.a.
Q4 20186$175mn.a.n.a.
Q1 20193$11mn.a.n.a.
Q2 20194$53mn.a.n.a.
Q3 20194$16mn.a.n.a.
Q4 20194$56mn.a.n.a.
Q1 20203$152mn.a.n.a.
Q2 20202$208mn.a.n.a.
Q3 20202$196mn.a.n.a.
Q4 20202$222mn.a.n.a.
Q1 20213$238mn.a.n.a.
Q2 20214$255mn.a.n.a.
Q3 20214$259mn.a.n.a.
Q4 20214$98mn.a.n.a.
Q1 20223$75mn.a.n.a.
Q2 20224$48mn.a.n.a.
Q3 20223$19mn.a.n.a.
Q4 20223$19mn.a.n.a.
Q1 20232$19mn.a.n.a.
Q2 20232$6.8mn.a.n.a.
Q3 20232$17mn.a.n.a.
Q4 20233$26m21
Q1 20244$38m23
Q2 20246$138m41
Q3 20247$148m42
Q4 20245$75m12
Q1 20255$250m41
Q2 20255$271m40
Q3 20255$210m31
Q4 20257$171m2013
Q1 20268$192m2013
Q2 20266$169m1616

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

MMSI and LLY →MMSI and JNJ →MMSI and VRTX →Choose a stock to compare with MMSI →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own MMSI, latest filings →Back to the 13F Explorer →