BSX Congressional Stock Trades
BOSTON SCIENTIFIC CORP
Last disclosed trade Aug 10
Every disclosed trade in BSX by members of Congress under the STOCK Act, parsed by Coldpine. Informational only, sourced from public filings. Not investment advice.
Sample · the intelligence layer
Rohit Khanna · Bought $BSX · Jun 30 · $1K–$15K
Every disclosed trade in the database gets this treatment: a four-factor score and a written read from Coldpine’s AI-based analysis. Informational only, not investment advice. Create a free account for every scored trade →
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The record on $BSX
Coldpine has parsed 57 disclosed trades in $BSX by 9 members of Congress, drawn from 34 periodic transaction reports dated Feb 23, 2023 through Aug 10, 2026. That is 53 trades from House members and 4 trades from senators, filed 34 by Democrats and 23 by Republicans.
Of the 57 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 24 days. The longest was 116 days: a $BSX 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.
44 of the 47 trades that list an account holder (94%) were reported under a spouse, dependent child, or joint account rather than the member directly.
Rohit Khanna filed the most $BSX purchases (15), and Michael T. McCaul the most sales (14).
Activity peaked in 2023 with 21 trades. The busiest single month was December 2023, when 3 different members disclosed $BSX trades.
Across the 19 purchases Coldpine can price, $BSX moved -3.23% on average between the trade date and the disclosure date, against +1.59% for the S&P 500 over the same windows. The stock was higher at disclosure than at the trade in 37% of those purchases. That is a record of what already happened, not a forecast. Method: what stocks do before Congress discloses.
Members who trade BSX
Recent disclosed trades in BSX
| Date | Member | Type | Amount |
|---|---|---|---|
| Aug 10 | Rohit Khanna(CA) | buy | $1K–$15K |
| Aug 3 | Rohit Khanna(CA) | buy | $1K–$15K |
| Jul 20 | Rohit Khanna(CA) | buy | $1K–$15K |
| Jul 7 | Rohit Khanna(CA) | sell | $1K–$15K |
| Jun 30 | Rohit Khanna(CA) | buy | $1K–$15K |
| Jun 16 | Rohit Khanna(CA) | sell | $1K–$15K |
| Jun 4 | John Boozman(AR) | sell | $1K–$15K |
| Jun 2 | Rohit Khanna(CA) | buy | $1K–$15K |
| Apr 24 | Rohit Khanna(CA) | buy | $1K–$15K |
| Apr 13 | Rohit Khanna(CA) | sell | $1K–$15K |
| Mar 27 | Alan Armstrong(OK) | buy | $1K–$15K |
| Mar 27 | Michael T. McCaul(TX) | buy | $1K–$15K |
| Dec 29 | Markwayne Mullin(OK) | buy | $15K–$50K |
| Dec 17 | John Boozman(AR) | sell | $1K–$15K |
| Oct 28 | Kevin Hern(OK) | sell | $15K–$50K |
| Oct 7 | Rohit Khanna(CA) | sell | $1K–$15K |
| Jul 31 | Gilbert Cisneros(CA) | sell | $1K–$15K |
| Jun 26 | Gilbert Cisneros(CA) | sell | $1K–$15K |
| Jun 11 | Gilbert Cisneros(CA) | sell | $1K–$15K |
| May 13 | Gilbert Cisneros(CA) | sell | $1K–$15K |
Showing 20 of 57 disclosed trades.
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Create a free accountData sourced from public STOCK Act disclosures. Coldpine is a publisher of intelligence on congressional disclosures, not an investment adviser. See full history and scores, free with an account →