Ticker · CUSIP 98978V103
Holders (tracked)
25
Combined shares
23,822,775
Combined value
$2.83B
Last close
$119.04
Quarter
2025Q4
Tracked holders · last 8 quarters
+5 vs previous quarter over the last 8.
Price is +0.0% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
30 events
- Wellington Management added2026-02-17+2,853,563 shares · 2025Q413F
- +67,696 shares · 2025Q413F
- D.E. Shaw & Co. trimmed2026-02-17−382,807 shares · 2025Q413F
- AQR Capital Management trimmed2026-02-17−735,936 shares · 2025Q413F
- Jeremy Grantham (GMO) added2026-02-17+1,335 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−69,022 shares · 2025Q413F
- Two Sigma Investments trimmed2026-02-17−2,874 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) added2026-02-17+18,681 shares · 2025Q413F
- Steve Cohen (Point72) trimmed2026-02-17−8,200 shares · 2025Q413F
- T. Rowe Price added2026-02-17+252,725 shares · 2025Q413F
- Ray Dalio (Bridgewater Associates) added2026-02-13+56,967 shares · 2025Q413F
- Dodge & Cox exited2026-02-13−1,500 shares · 2025Q413F
- +148,448 shares · 2025Q413F
- Renaissance Technologies added2026-02-12+167,700 shares · 2025Q413F
- Norges Bank (Norway SWF) opened position2026-02-10+5,837,110 shares · 2025Q413F
- Ken Fisher (Fisher Asset Mgmt) added2026-02-09+599 shares · 2025Q413F
- Mario Gabelli (GAMCO) trimmed2026-02-05−1,599 shares · 2025Q413F
- Baillie Gifford & Co opened position2026-01-23+150,845 shares · 2025Q413F
- −342,815 shares · 2025Q313F
- AQR Capital Management added2025-11-14+314,047 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−845,203 shares · 2025Q313F
- Two Sigma Investments added2025-11-14+99,778 shares · 2025Q313F
- D.E. Shaw & Co. added2025-11-14+829,910 shares · 2025Q313F
- T. Rowe Price added2025-11-14+64,019 shares · 2025Q313F
- Wellington Management trimmed2025-11-14−348,257 shares · 2025Q313F
- Ron Baron (Baron Capital / BAMCO) exited2025-11-14−5,000 shares · 2025Q313F
- Bill Nygren (Harris / Oakmark) exited2025-11-14−1,405 shares · 2025Q313F
- Ray Dalio (Bridgewater Associates) added2025-11-13+61,567 shares · 2025Q313F
- Jeremy Grantham (GMO) added2025-11-13+1,010 shares · 2025Q313F
- Renaissance Technologies added2025-11-13+162,300 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of ZTS…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| T. Rowe Price | 2016Q1 | $43.89 | +171.2% | $153.8M |
| George Soros (Soros Fund Mgmt) | 2016Q1 | $44.33 | +168.5% | $17.7M |
| Mario Gabelli (GAMCO) | 2016Q1 | $83.91 | +41.9% | $1.5M |
| Renaissance Technologies | 2016Q1 | $121.70 | -2.2% | $50.5M |
| Baillie Gifford & Co | 2025Q4 | $125.82 | -5.4% | $18.0M |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $126.06 | -5.6% | $6.3M |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $126.06 | -5.6% | $6.3M |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $126.06 | -5.6% | $6.3M |
| Paul Tudor Jones (Tudor Investment) | 2016Q1 | $126.51 | -5.9% | $10.0M |
| Paul Tudor Jones (Tudor Investment) | 2016Q1 | $126.51 | -5.9% | $10.0M |
| Paul Tudor Jones (Tudor Investment) | 2016Q1 | $126.51 | -5.9% | $10.0M |
| Ken Griffin (Citadel Advisors) | 2016Q3 | $129.60 | -8.1% | $137.5M |
| Ken Griffin (Citadel Advisors) | 2016Q3 | $129.60 | -8.1% | $137.5M |
| Ken Griffin (Citadel Advisors) | 2016Q3 | $129.60 | -8.1% | $137.5M |
| D.E. Shaw & Co. | 2016Q1 | $146.39 | -18.7% | $250K |
| D.E. Shaw & Co. | 2016Q1 | $146.39 | -18.7% | $250K |
| Ray Dalio (Bridgewater Associates) | 2020Q4 | $146.85 | -18.9% | $21.7M |
| Wellington Management | 2016Q1 | $147.25 | -19.2% | $1.36B |
| Steve Cohen (Point72) | 2016Q1 | $147.70 | -19.4% | $202K |
| Steve Cohen (Point72) | 2016Q1 | $147.70 | -19.4% | $202K |
| Two Sigma Investments | 2016Q1 | $148.48 | -19.8% | $13.2M |
| Ken Fisher (Fisher Asset Mgmt) | 2018Q4 | $150.09 | -20.7% | $354K |
| Jeremy Grantham (GMO) | 2025Q1 | $154.58 | -23.0% | $1.1M |
| AQR Capital Management | 2016Q1 | $159.25 | -25.2% | $95.6M |
| Norges Bank (Norway SWF) | 2016Q1 | $8997.23 | -98.7% | $694.8M |
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions4
- Norges Bank (Norway SWF)+5,837,110$734.4M
- Baillie Gifford & Co+150,845$19.0M
- George Soros (Soros Fund Mgmt)+148,448$18.7M
- Paul Tudor Jones (Tudor Investment)+67,696$8.5M
Added to7
- Wellington Management+2,853,563$359.0M
- Renaissance Technologies+167,700$21.1M
- Ray Dalio (Bridgewater Associates)+56,967$7.2M
- Izzy Englander (Millennium Mgmt)+18,681$2.4M
- Jeremy Grantham (GMO)+1,335$168K
- Ken Fisher (Fisher Asset Mgmt)+599$75K
- T. Rowe Price+252,725$32K
Trimmed6
- AQR Capital Management−735,936$92.6M
- D.E. Shaw & Co.−382,807$48.2M
- Ken Griffin (Citadel Advisors)−69,022$8.7M
- Steve Cohen (Point72)−8,200$1.0M
- Two Sigma Investments−2,874$362K
- Mario Gabelli (GAMCO)−1,599$201K
Exited1
- Dodge & Cox−1,500$219K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 20 | $894.01B |
| 2022Q2 | 23 | $817.17B |
| 2022Q3 | 22 | $722.4M |
| 2022Q4 | 23 | $8.68B |
| 2023Q1 | 23 | $9.87B |
| 2023Q2 | 21 | $9.88B |
| 2023Q3 | 20 | $7.49B |
| 2023Q4 | 22 | $8.52B |
| 2024Q1 | 23 | $9.58B |
| 2024Q2 | 23 | $9.32B |
| 2024Q3 | 20 | $1.96B |
| 2024Q4 | 21 | $1.36B |
| 2025Q1 | 20 | $1.41B |
| 2025Q2 | 25 | $2.99B |
| 2025Q3 | 20 | $1.97B |
| 2025Q4 | 25 | $2.83B |
Congress members trading this stock
| Date | Member | Type | Amount range | Filing |
|---|---|---|---|---|
| 2026-03-13 | Gilbert Cisneros | Sell (P) | $1K – $15K | PDF ↗ |
| 2026-02-10 | Gilbert Cisneros | Buy | $1K – $15K | PDF ↗ |
| 2025-12-19 | Gilbert Cisneros | Buy | $1K – $15K | PDF ↗ |
| 2025-11-18 | Gilbert Cisneros | Buy | $1K – $15K | PDF ↗ |
| 2025-10-06 | Rick Larsen | Sell | $1K – $15K | PDF ↗ |
| 2025-08-05 | Gilbert Cisneros | Sell (P) | $1K – $15K | PDF ↗ |
| 2025-08-04 | Lisa McClain | Sell | $1K – $15K | PDF ↗ |
| 2025-07-22 | Lisa McClain | Buy | $1K – $15K | PDF ↗ |
| 2025-05-15 | Rob Bresnahan | Buy | $1K – $15K | PDF ↗ |
| 2025-04-08 | Rob Bresnahan | Sell | $1K – $15K | PDF ↗ |
| 2025-04-01 | Julie Johnson | Sell | $1K – $15K | PDF ↗ |
| 2025-03-03 | Julie Johnson | Sell | $1K – $15K | PDF ↗ |
Who owns ZTS
25 super-investors · 2025Q4
Tracked stake
23.82M
shares
Combined value
$2.83B
% of shares outstanding
—
shares-out unknown
Quarter action mix
New6Added9Trim10
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Wellington Management | 11.39M | $1.43B |
| 2 | Norges Bank Norway SWF | 5.84M | $734M |
| 3 | D.E. Shaw & Co. | 1.21M | $153M |
| 4 | Ken Griffin Citadel Advisors | 1.16M | $145M |
| 5 | AQR Capital Management | 802.7K | $101M |
| 6 | Renaissance Technologies | 424.6K | $53M |
| 7 | Izzy Englander Millennium Mgmt | 348.3K | $44M |
| 8 | Ken Griffin Citadel Advisors | 301.2K | $38M |
| 9 | Ray Dalio Bridgewater Associates | 182.6K | $23M |
| 10 | Ken Griffin Citadel Advisors | 165.4K | $21M |
| 11 | Baillie Gifford & Co | 150.8K | $19M |
| 12 | George Soros Soros Fund Mgmt | 148.4K | $19M |
| 13 | Two Sigma Investments | 110.7K | $14M |
| 14 | Paul Tudor Jones Tudor Investment | 84.3K | $11M |
| 15 | Paul Tudor Jones Tudor Investment | 67.7K | $9M |
| 16 | Izzy Englander Millennium Mgmt | 53.2K | $7M |
| 17 | Paul Tudor Jones Tudor Investment | 38.0K | $5M |
| 18 | Izzy Englander Millennium Mgmt | 17.8K | $2M |
| 19 | Mario Gabelli GAMCO | 12.9K | $2M |
| 20 | Jeremy Grantham GMO | 9.1K | $1M |
| 21 | Steve Cohen Point72 | 4.0K | $503K |
| 22 | Ken Fisher Fisher Asset Mgmt | 3.0K | $374K |
| 23 | D.E. Shaw & Co. | 2.1K | $264K |
| 24 | Steve Cohen Point72 | 1.7K | $214K |
| 25 | T. Rowe Price | 1.29M | $163K |
Recent moves
20 transactions
- +67,696 · 2025Q4
- +2,853,563 · 2025Q4
- −8,200 · 2025Q4
- −2,874 · 2025Q4
- +1,335 · 2025Q4
- TRIMD.E. Shaw & Co.−382,807 · 2025Q4
- −69,022 · 2025Q4
- −735,936 · 2025Q4
- +18,681 · 2025Q4
- +252,725 · 2025Q4
- +148,448 · 2025Q4
- SOLDDodge & Cox−1,500 · 2025Q4
- +56,967 · 2025Q4
- +167,700 · 2025Q4
- +5,837,110 · 2025Q4
- +599 · 2025Q4
- −1,599 · 2025Q4
- +150,845 · 2025Q4
- −342,815 · 2025Q3
- −845,203 · 2025Q3
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