ACGL Congressional Stock Trades

Coldpine has parsed 20 disclosed trades in $ACGL by 2 members of Congress, drawn from 15 periodic transaction reports dated Jan 11, 2023 through Sep 4, 2026. That is 19 trades from House members and 1 trade from senators, filed 19 by Democrats and 1 by Republicans.

Of the 20 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 26 days. The longest was 116 days: a $ACGL purchase by Alan Armstrong dated Mar 27, 2026, disclosed Jul 21, 2026. How late filing is measured across all of Congress is in the late-filers study.

19 of the 20 trades that list an account holder (95%) were reported under a spouse, dependent child, or joint account rather than the member directly.

Rohit Khanna filed the most $ACGL purchases (11), and Rohit Khanna the most sales (8).

Activity peaked in 2025 with 8 trades.

Across the 12 purchases Coldpine can price, $ACGL moved -0.07% on average between the trade date and the disclosure date, against +2.56% for the S&P 500 over the same windows. The stock was higher at disclosure than at the trade in 67% of those purchases. That is a record of what already happened, not a forecast. Method: what stocks do before Congress discloses.