ALXN Congressional Trades
9 trades by 1 members of Congress (Aug 2019 – Dec 2020)
Last updated March 21, 2026
Congress members who trade ALXN
Recent ALXN trades
| Date | Politician | Action | Amount | Alpha |
|---|---|---|---|---|
| 2020-12-22 | Gilbert Cisneros | SELL | $15K-$50K | — |
| 2020-12-21 | Gilbert Cisneros | SELL | $50K-$100K | — |
| 2020-07-14 | Gilbert Cisneros | BUY | $1K-$15K | -11.54% |
| 2020-07-13 | Gilbert Cisneros | BUY | $1K-$15K | -9.89% |
| 2020-03-18 | Gilbert Cisneros | BUY | $1K-$15K | +34.40% |
| 2020-02-24 | Gilbert Cisneros | BUY | $1K-$15K | +41.43% |
| 2020-02-24 | Gilbert Cisneros | SELL | $1K-$15K | — |
| 2020-02-07 | Gilbert Cisneros | SELL | $1K-$15K | — |
| 2019-08-14 | Gilbert Cisneros | BUY | $1K-$15K | — |
Frequently Asked Questions
Which Congress members trade ALXN?
1 members of Congress have traded ALXN. Top traders include: Gilbert Cisneros. See the full list below.
Is Congress buying or selling ALXN?
Congress has made 5 purchases and 4 sales of ALXN. The buy/sell ratio is 1.2x.
Do Congress ALXN trades beat the market?
Congressional trades in ALXN have a 50% win rate against the S&P 500, with an average alpha of +13.6%.
How is alpha calculated?
Alpha measures how much a trade outperformed the S&P 500 over the same holding period. For each politician, we show their dollar-weighted alpha—larger positions count more. A politician with +404% alpha on NVDA means their NVDA trades, weighted by size, beat the market by 404 percentage points.
What does the win rate mean?
Win rate is the percentage of trades that beat the S&P 500. Note that win rate treats all trades equally—a $5K trade counts the same as a $5M trade. This is why some traders show high alpha but moderate win rates (big wins, small losses) or low alpha but high win rates (consistent small wins).