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MMSI · VRTX in the 13F filings

Two to four stocks side by side among the 95 tracked managers: who lists them, how that has moved, who bought and sold in a quarter, and which managers hold more than one.

MMSIVRTX
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023

Holders over time

Tracked managers listing each stock every quarter, at least, or their combined reported value. A gap is a quarter in which no tracked manager listed it. Click a quarter to compare there.
  • MMSI
  • VRTX
010203040202120222023202420252026
Holders and value by quarter
QuarterMMSIVRTX
Q3 20202 holders, $196m31 holders, $21.9bn
Q4 20202 holders, $222m30 holders, $18.4bn
Q1 20213 holders, $238m31 holders, $15.4bn
Q2 20214 holders, $255m30 holders, $12.7bn
Q3 20214 holders, $259m35 holders, $10.1bn
Q4 20214 holders, $98m28 holders, $12.4bn
Q1 20223 holders, $75m23 holders, $16.1bn
Q2 20224 holders, $48m25 holders, $18.1bn
Q3 20223 holders, $19m22 holders, $18.4bn
Q4 20223 holders, $19m28 holders, $18.4bn
Q1 20232 holders, $19m26 holders, $21.4bn
Q2 20232 holders, $6.8m27 holders, $24.7bn
Q3 20232 holders, $17m33 holders, $24.3bn
Q4 20233 holders, $26m32 holders, $28.6bn
Q1 20244 holders, $38m31 holders, $29.8bn
Q2 20246 holders, $138m29 holders, $33.4bn
Q3 20247 holders, $148m27 holders, $33.5bn
Q4 20245 holders, $75m26 holders, $28.5bn
Q1 20255 holders, $250m21 holders, $35.4bn
Q2 20255 holders, $271m21 holders, $32.3bn
Q3 20255 holders, $210m22 holders, $25.9bn
Q4 20257 holders, $171m26 holders, $31.8bn
Q1 20268 holders, $192m25 holders, $31.8bn
Q2 20266 holders, $169m26 holders, $34.6bn
MMSI

Merit Med Sys Inc

Holders
3
Reported value
$26m
Buyers
2
Sellers
1

Breadth +1 among 93 comparable managers.

Medical devices and instrumentsHealthcare: biopharma and medtech · L3VLUPSurgical, medical and electromedical devices
VRTX

Vertex Pharmaceuticals Inc

Holders
32
Reported value
$28.6bn
Buyers
16
Sellers
16

Breadth 0 among 93 comparable managers.

Pharmaceuticals and biotechnologyHealthcare: biopharma and medtech · L3VLUPPharmaceutical preparations

Who holds both, Q4 2023

Among the 34 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

Only MMSI (2)

ExodusPoint Capital Management LP, Soros Fund Management LLC

Only VRTX (31)

Acadian Asset Management LLC, AllianceBernstein LP, AQR Capital Management LLC, ARK Investment Management LLC, Artisan Partners LP, Brevan Howard Capital Management LP, Capital Research Global Investors, Capital World Investors, Caxton Associates LLP, D. E. Shaw & Co., Farallon Capital Management LLC, Fidelity (FMR LLC), Hudson Bay Capital Management LP, Invesco Ltd, Janus Henderson Group Ltd, Man Group PLC, Marshall Wace LLP, Maverick Capital Ltd, MFS Investment Management, Millennium Management LLC, Neuberger Berman Group LLC, PDT Partners LLC, Renaissance Technologies LLC, T. Rowe Price Associates Inc, Tudor Investment Corp, and 6 more

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. Buyers and sellers count comparable managers (those that filed both quarters) by shares, so a rise in value with no rise in shares is the price. Large books are listed to their largest positions. These are 95 tracked managers, not the institutional market.

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