ABOUT CONGRESSIONAL TRADING IN BIO
As of June 2026, 1 member of Congress have collectively executed 2 disclosed trades on BIO (Bio-Rad Laboratories, Inc. Class A). This includes 1 purchase and 1 sale, with bipartisan cluster activity detected 0 times — instances where members of both parties traded BIO within overlapping time windows, often a signal of coordinated information or policy-related activity.
MOST-ACTIVE TRADERS
The most active trader of BIO on Signal Congress is Lois Frankel with 2 trades.
Signal Congress tracks BIO congressional trades through STOCK Act PTR filings from the House Clerk XML feed and Senate eFD system. Each trade is scored for conviction (0–100 scale) based on filing speed, amount, and corroboration signals, and analyzed for alpha generation against the SPY benchmark over 60-day and 180-day windows.