ZTS Congressional Stock Trades

Coldpine has parsed 87 disclosed trades in $ZTS by 10 members of Congress, drawn from 30 periodic transaction reports dated Dec 20, 2022 through Aug 3, 2026. All of them came from House members, filed 78 by Democrats and 9 by Republicans.

Of the 86 trades with a known filing lag, 1 was reported more than 45 days after the trade date, outside the window the STOCK Act sets. The median lag was 28 days. The longest was 71 days: a $ZTS purchase by Robert J. Wittman dated Jul 21, 2023, disclosed Sep 30, 2023. How late filing is measured across all of Congress is in the late-filers study.

81 of the 83 trades that list an account holder (98%) were reported under a spouse, dependent child, or joint account rather than the member directly.

Rohit Khanna filed the most $ZTS purchases (56), and Rohit Khanna the most sales (17).

Activity peaked in 2025 with 58 trades. The busiest single month was June 2026, when 3 different members disclosed $ZTS trades. In 1 calendar month out of 23 with activity, three or more members bought $ZTS in the same month, the same-direction overlap Coldpine's cluster detector looks for.

Across the 63 purchases Coldpine can price, $ZTS moved -1.53% on average between the trade date and the disclosure date, against +2.01% for the S&P 500 over the same windows. The stock was higher at disclosure than at the trade in 44% of those purchases. That is a record of what already happened, not a forecast. Method: what stocks do before Congress discloses.