CapitolRadar tracks every publicly disclosed ZTS trade by US congress members and corporate insiders: 68 disclosed trades (32 buys, 36 sells) by 7 tracked traders, from 2019-04-25 to 2026-09-25. Updated daily from official filings.
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Zoetis Inc. (ZTS) — Healthcare · Drug Manufacturers - Specialty & Generic, market cap about $31.6B.
Cluster watch: 2 distinct tracked traders disclosed buying ZTS in the last 45 days: Ro Khanna, Gilbert Cisneros.
CapitolRadar analysis
68 disclosed ZTS trades split nearly evenly
68 tracked trades in Zoetis Inc. (ZTS) comprise 32 buys and 36 sells by seven distinct traders. The activity spans April 25, 2019 through September 25, 2026. Sells represent a slight majority, exceeding buys by four transactions, but transaction counts alone do not show the relative dollar value of either side.
The listed quarterly data contain 27 trades and 15 buys. Activity was highest in 2025 Q3, with 10 trades, including eight buys. The next-largest listed quarter was 2026 Q3, with seven trades and three buys. By comparison, 2026 Q2 had one trade, which was a buy, while 2024 Q2 and 2024 Q3 each had one trade and no buys. These quarterly observations are small samples, so shifts in buy-versus-sell counts can be driven by only a few disclosures.
25 of 32 buys came from Ro Khanna
Ro Khanna recorded 25 buys, with the latest dated September 4, 2026. Markwayne Mullin recorded four buys, most recently on May 13, 2025. Gilbert Cisneros, Jared Moskowitz and Michael McCaul each recorded one buy, most recently on September 18, 2026, December 28, 2023 and November 25, 2020, respectively. Together, these five named buyers account for all 32 tracked buys, making the buying record highly concentrated in one trader.
Five stocks recur across three ZTS buyers
Three ZTS buyers also bought each of WDAY, INTU, MSFT, META and TSM. HCA was also bought by two of the ZTS buyers. These overlaps describe shared disclosed holdings or transactions, not the reasons for trading ZTS.
Disclosures can arrive with a 45-day reporting lag, so dates may not reflect real-time activity. Reported transaction amounts are generally presented as ranges, making any amount-based totals estimates. The seven-trader universe and several one-trade quarters are also small samples.
Analysis written from the tracked record on 2026-10-14; it is refreshed whenever the underlying numbers change.
Activity by quarter
| Quarter | Disclosed trades | Buys | Sells |
|---|---|---|---|
| 2026 Q3 | 7 | 3 | 4 |
| 2026 Q2 | 1 | 1 | 0 |
| 2026 Q1 | 2 | 1 | 1 |
| 2025 Q4 | 3 | 1 | 2 |
| 2025 Q3 | 10 | 8 | 2 |
| 2025 Q2 | 2 | 1 | 1 |
| 2024 Q3 | 1 | 0 | 1 |
| 2024 Q2 | 1 | 0 | 1 |
Who is buying ZTS?
| Trader | Disclosed buys | Last buy | Grade |
|---|---|---|---|
| Ro Khanna | 25 | 2026-09-04 | — |
| Markwayne Mullin | 4 | 2025-05-13 | — |
| Gilbert Cisneros | 1 | 2026-09-18 | — |
| Jared Moskowitz | 1 | 2023-12-28 | — |
| Michael McCaul | 1 | 2020-11-25 | — |
Disclosed trades in ZTS
| Date | Who | Type | Amount | 30d vs SPY |
|---|---|---|---|---|
| 2026-09-25 | Ro Khanna | sell | $1,001 - $15,000 | — |
| 2026-09-18 | Gilbert Cisneros | buy | $1,001 - $15,000 | — |
| 2026-09-11 | Ro Khanna | sell | $1,001 - $15,000 | — |
| 2026-09-04 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2026-07-17 | Gilbert Cisneros | sell | $1,001 - $15,000 | — |
| 2026-07-16 | Gilbert Cisneros | sell | $1,001 - $15,000 | — |
| 2026-07-07 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2026-05-01 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2026-01-29 | Ro Khanna | sell | $1,001 - $15,000 | — |
| 2026-01-13 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2025-11-10 | Markwayne Mullin | sell | $15,001 - $50,000 | — |
| 2025-10-27 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2025-10-07 | Ro Khanna | sell | $1,001 - $15,000 | — |
| 2025-09-29 | Ro Khanna | sell | $1,001 - $15,000 | — |
| 2025-09-26 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2025-09-15 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2025-09-05 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2025-08-27 | Ro Khanna | sell | $1,001 - $15,000 | — |
| 2025-08-26 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2025-08-21 | Ro Khanna | buy | $1,001 - $15,000 | — |
These buyers also bought
Other stocks the tracked buyers of ZTS disclosed buying in the last six months: INTU (3) · ACN (3) · WDAY (3) · MSFT (3) · TSM (3) · FERG (2).
About Zoetis Inc.
Zoetis Inc. stands as a global leader in animal health, focusing on the research, development, manufacturing, and commercialization of veterinary pharmaceuticals, vaccines, and diagnostic tools. Its comprehensive portfolio serves a broad spectrum of species, encompassing both livestock, including cattle, swine, poultry, fish, and sheep, and beloved companion animals such as dogs, cats, and horses. Among its pharmaceutical offerings are various therapeutic agents. This includes vaccines, vital for preventing respiratory, gastrointestinal, and reproductive diseases by stimulating a targeted immu…
Frequently asked questions
Which politicians bought ZTS most?
Ro Khanna leads with 25 disclosed buys, followed by Markwayne Mullin.
How current is this page?
It re-renders from the tracked record on every view and new filings are ingested daily — but STOCK Act disclosures can lag the trade by up to 45 days, so the most recent weeks are always incomplete.
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CapitolRadar tracks publicly disclosed trades (STOCK Act filings and SEC Form 4). Disclosures can lag the trade by up to 45 days. Backtests measure past disclosed buys against the S&P 500 and do not predict future results. Everything on this page is impersonal information for your own research — not investment advice.