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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 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 10 Feb 2026
Managers listing it
31
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 4 listed it in both
Shares listed
8,761,150
combined, among listed positions
Reported value
$772m
combined, at the quarter end

Among the 92 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 -454,517.

Managers listing MMSI in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

31 of 31 holders

ActionFiling
Fidelity (FMR LLC)1,771,579$156munder 0.1%Added+150,74017 Feb 2026 (the filing on sec.gov)
Wellington Management Group LLP1,327,013$117munder 0.1%Added+86,50417 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC1,093,607$96munder 0.1%Trimmed-83,19417 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc644,863$57munder 0.1%Added+4,01617 Feb 2026 (the filing on sec.gov)
Walleye Capital LLC559,811$49m0.15%Added+244,17613 Feb 2026 (the filing on sec.gov)
Invesco Ltd492,687$43munder 0.1%Trimmed-221,67119 Feb 2026 (the filing on sec.gov)
Maverick Capital Ltd486,166$43m0.46%Trimmed-1,124,04813 Feb 2026 (the filing on sec.gov)
Point72 Asset Management LP436,531$38munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Two Sigma Investments LP379,740$33munder 0.1%Added+37,96117 Feb 2026 (the filing on sec.gov)
Two Sigma Advisers LP310,100$27m0.05%Trimmed-106,70017 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.197,691$17munder 0.1%Added+4,70417 Feb 2026 (the filing on sec.gov)
Marshall Wace LLP146,511$13munder 0.1%Added+114,34113 Feb 2026 (the filing on sec.gov)
Winton Group Ltd138,856$12m0.42%Newnew11 Feb 2026 (the filing on sec.gov)
Balyasny Asset Management LLC133,438$12munder 0.1%Added+56,82817 Feb 2026 (the filing on sec.gov)
Renaissance Technologies LLC126,212$11munder 0.1%Added+51,30012 Feb 2026 (the filing on sec.gov)
Man Group PLC116,088$10munder 0.1%Added+46,34317 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC74,652$6.6munder 0.1%Trimmed-4,47012 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP67,946$6.0munder 0.1%Trimmed-5,45117 Feb 2026 (the filing on sec.gov)
Freestone Grove Partners LP65,035$5.7munder 0.1%Added+61,26517 Feb 2026 (the filing on sec.gov)
Voloridge Investment Management LLC33,154$2.9munder 0.1%Trimmed-33,69317 Feb 2026 (the filing on sec.gov)
Verition Fund Management LLC29,794$2.6munder 0.1%Trimmed-69,35613 Feb 2026 (the filing on sec.gov)
Janus Henderson Group Ltd27,531$2.4munder 0.1%Added+2,90017 Feb 2026 (the filing on sec.gov)
Millennium Management LLC26,261$2.3munder 0.1%Trimmed-63,37017 Feb 2026 (the filing on sec.gov)
AQR Capital Management LLC24,759$2.2munder 0.1%Added+3,82517 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP13,965$1.2munder 0.1%Added+17617 Feb 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, 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 →