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ZTS · 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.

ZTSVRTX
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.
  • ZTS
  • VRTX
010203040202120222023202420252026
Holders and value by quarter
QuarterZTSVRTX
Q3 202027 holders, $13.3bn31 holders, $21.9bn
Q4 202025 holders, $13.7bn30 holders, $18.4bn
Q1 202130 holders, $13.9bn31 holders, $15.4bn
Q2 202128 holders, $15.8bn30 holders, $12.7bn
Q3 202129 holders, $16.6bn35 holders, $10.1bn
Q4 202129 holders, $21.1bn28 holders, $12.4bn
Q1 202236 holders, $17.0bn23 holders, $16.1bn
Q2 202237 holders, $15.4bn25 holders, $18.1bn
Q3 202237 holders, $12.9bn22 holders, $18.4bn
Q4 202230 holders, $12.0bn28 holders, $18.4bn
Q1 202324 holders, $13.3bn26 holders, $21.4bn
Q2 202326 holders, $13.3bn27 holders, $24.7bn
Q3 202323 holders, $13.2bn33 holders, $24.3bn
Q4 202319 holders, $14.5bn32 holders, $28.6bn
Q1 202435 holders, $12.2bn31 holders, $29.8bn
Q2 202424 holders, $10.1bn29 holders, $33.4bn
Q3 202424 holders, $9.8bn27 holders, $33.5bn
Q4 202427 holders, $7.7bn26 holders, $28.5bn
Q1 202528 holders, $7.2bn21 holders, $35.4bn
Q2 202526 holders, $6.0bn21 holders, $32.3bn
Q3 202527 holders, $5.9bn22 holders, $25.9bn
Q4 202521 holders, $5.1bn26 holders, $31.8bn
Q1 202621 holders, $4.4bn25 holders, $31.8bn
Q2 202623 holders, $2.7bn26 holders, $34.6bn
ZTS

Zoetis Inc

Holders
23
Reported value
$2.7bn
Buyers
27
Sellers
14

Breadth +13 among 91 comparable managers.

Pharmaceuticals and biotechnologyHealthcare: biopharma and medtech · L3VLUPPharmaceutical preparations
VRTX

Vertex Pharmaceuticals Inc

Holders
26
Reported value
$34.6bn
Buyers
21
Sellers
17

Breadth +4 among 91 comparable managers.

Pharmaceuticals and biotechnologyHealthcare: biopharma and medtech · L3VLUPPharmaceutical preparations

Who holds both, Q2 2026

Among the 36 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

Only ZTS (10)

Caxton Associates LLP, Markel Group Inc, Moore Capital Management LP, Polen Capital Management LLC, Quantbot Technologies LP, Ruane Cunniff & Goldfarb LP, Soros Fund Management LLC, Squarepoint Ops LLC, Voloridge Investment Management LLC, Walleye Capital LLC

Only VRTX (13)

AQR Capital Management LLC, Balyasny Asset Management LLC, Brevan Howard Capital Management LP, Capital World Investors, Fidelity (FMR LLC), Holocene Advisors LP, Hudson Bay Capital Management LP, Marshall Wace LLP, MFS Investment Management, Neuberger Berman Group LLC, T. Rowe Price Associates Inc, Two Sigma Investments LP, Woodline Partners LP

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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