Hillscore

Congress trades in AstraZeneca PLC (AZN)

5 of the members we track disclosed 10 purchases of AZN between 2024-10-29 and 2026-03-31, and 5 sales. Here is what the stock did afterwards.

Average after 3 months
+6.57%
Against XLV
+2.13%
Beat the sector
70%
Buys measured
10

Every purchase is measured over the three months after the transaction date, against XLV — the ETF standing in for Healthcare & Pharma — over exactly the same dates. The second figure is the one that carries information: the first mostly reflects what the sector did. How AZN was classified.

How these buys are tagged

AstraZeneca PLC is a mega-cap, so a committee-aligned purchase here is tagged Aligned (Mega-cap) rather than Notable: owning a company this size says little about committee access. 5 are marked Cluster: A buy is marked Cluster when at least one other tracked member of Congress bought the same stock within 30 days of it, regardless of committee membership.

Buys Number Return after 3 months vs. sector Beat their sector
All buys 10 +6.6% +2.1% 70%
Notable (committee-flagged) 0 Too few buys to measure
Unaligned (no committee overlap) 7 +9.2% +6.0% 86%
Cluster, excl. mega-caps 0 Too few buys to measure
Not clustered, excl. mega-caps 0 Too few buys to measure

Who bought the most

Every disclosed purchase

Member Bought
disclosed
Signal Price 1W 1M 3M vs sector
Alan Armstrong 2026-03-31
2026-07-21
Aligned (Mega-cap) $197.22 +1.8% -5.0% -3.9% -12.1%
Alan Armstrong 2026-03-30
2026-07-21
Aligned (Mega-cap) $193.88 +4.6% -4.5% -1.5% -13.3%
Gilbert Ray Cisneros, Jr. 2025-12-18
2026-01-12
Unaligned Cluster $181.22 +2.0% +4.2% +4.3% +9.0%
Julia Letlow 2025-12-08
2026-01-13
Aligned (Mega-cap) Cluster $182.56 +0.3% +4.3% +6.8% +4.9%
Gilbert Ray Cisneros, Jr. 2025-11-19
2025-12-15
Unaligned Cluster $177.98 +4.9% +2.7% +17.2% +13.7%
Lisa C. McClain 2025-10-30
2025-11-21
Unaligned Cluster $164.68 +1.7% +12.6% +12.4% +5.9%
Gilbert Ray Cisneros, Jr. 2025-10-21
2025-11-18
Unaligned Cluster $166.44 -0.7% +6.6% +8.1% +1.0%
Lisa C. McClain 2025-07-22
2025-08-13
Unaligned $140.96 +5.0% +14.2% +18.1% +9.4%
Lisa C. McClain 2025-06-09
2025-08-13
Unaligned $146.02 +0.7% -3.0% +11.7% +9.0%
Val T. Hoyle 2024-10-29
2025-09-12
Unaligned $150.44 -11.9% -10.7% -7.5% -6.2%

Prices are the closing price on the transaction date, not what was paid: filings never disclose an execution price. Blank figures mean the window has not elapsed yet. Sales are not scored — a sale closes a position rather than opening one — so the 5 disclosed sales of AZN are not in this table.

Download the data behind this page, or read how every figure is calculated. Trades in AZN are a small part of the full rankings, which score each member across everything they bought.

Data last updated .