Who owns ZTS? 13F holders and whale ownership
ZTS is tracked across public portfolios in Whale Analyzer. This page answers who owns ZTS, which top funds are buying ZTS, aggregate disclosed value, and recent position changes based on public data. Polen Capital is the largest reported holder at $499M; the top five funds control 100.0% of reported ownership; institutions were net selling last quarter (1 increased, 2 reduced); the stock trades below the aggregate whale cost basis of $142.27. Top tracked holders include Polen Capital, Terry Smith, and Ruane, Cunniff & Goldfarb.
Continue to the live ZTS dashboardTop holders
| Investor | Reported value | Shares | Change |
|---|---|---|---|
| Polen Capital 13F portfolio Polen Capital Management holdings | $499.2M | 4.2M | Reduced |
| Terry Smith 13F portfolio Fundsmith Equity Fund holdings | $458.4M | 3.9M | Reduced |
| Ruane, Cunniff & Goldfarb 13F portfolio Ruane, Cunniff & Goldfarb holdings | $286.7M | 2.4M | New |
Ownership concentration
Reported ownership of ZTS is highly concentrated across tracked institutions.
- Single largest holder: 40.1% of reported ownership
- Top 5 holders: 100.0%
- Top 10 holders: 100.0%
Whale activity this quarter
Across 3 tracked institutions, 2 reduced, 1 increased. Net positioning is net selling.
- Polen Capital — Polen Capital Management ($499.2M) (▼ 24.1% qoq shares)
- Terry Smith — Fundsmith Equity Fund ($458.4M) (▼ 0.6% qoq shares) · avg cost $157.31
- Ruane, Cunniff & Goldfarb — Ruane, Cunniff & Goldfarb ($286.7M) · avg cost $118.21
Whale cost basis vs current price
The aggregate tracked cost basis is $142.27 versus a current price of $76.09, so ZTS trades below its cost basis (-46.5%). Average unrealized P&L across tracked holders: -41%.
Sector positioning — Health Care
ZTS sits within the Health Care sector alongside 221 other tracked names. Compare whale ownership across peers:
How to use this page
Values are reported public positions from tracked 13F filers and disclosures — not real-time ownership totals. Open the live ZTS dashboard for price charts and cross-investor scans, or read the SEC 13F guide.
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Learn more in Whale Analyzer Academy
Deepen your read on ZTS with these Whale Analyzer Academy guides:
Frequently asked questions
Who owns ZTS stock?
Whale Analyzer tracks 3 public institutional holders of ZTS with a combined reported value of $1.24B. See the holder table above for the largest tracked positions.
Which top funds are buying ZTS?
Tracked institutions were net selling last quarter — 2 reduced, 1 increased. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.
How concentrated is ZTS ownership?
The top five tracked holders report 100.0% of aggregate ownership.
Is ZTS above or below the whale cost basis?
The aggregate tracked cost basis is $142.27 versus a current price of $76.09 (-46.5%).
What does 13F ownership mean for ZTS?
Use the interactive ZTS dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.