InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (4 ops.)
Insider track record
ExecutiveDisclosed buys
0
Disclosed sells
4
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Browse the full record of transactions filed by Ambrose Kristen, Directeur Comptable. Officer active across 2 companies, notably Vertex Pharmaceuticals INC / MA. Cumulatively, 24 reports have been published. Breakdown: 0 buy · 4 sells. Total volume traded: €785k. History available since 1 February 2022. The latest transaction was disclosed on 26 February 2026 (Cession). Regulator: SEC (Form 4). The full history is openly available.
Companies and markets linked to Ambrose Kristen
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations24 total
357 shares@ US$483.3612.4% of flowCommon StockSEC:0000875320-26-000125:0
546 shares@ US$485.1119.1% of flowCommon StockSEC:0000875320-26-000104:0
1,809 shares0Common StockSEC:0000875320-26-000080:0
1,393 shares@ US$487.7648.7% of flowCommon StockSEC:0000875320-26-000058:0
592 shares@ US$468.4119.8% of flowCommon StockSEC:0000875320-26-000036:0
2,950 shares0Common StockSEC:0001856587-26-000002:0
1,241 shares@ US$479.6119.0% of flowCommon StockSEC:0000875320-25-000122:0
828 shares@ US$483.2812.8% of flowCommon StockSEC:0000875320-25-000103:0
564 shares@ US$463.468.4% of flowCommon StockSEC:0000875320-25-000079:0
2,080 shares0Common StockSEC:0000875320-25-000057:0
591 shares@ US$467.989.0% of flowCommon StockSEC:0000875320-25-000033:0
2,566 shares0Common StockSEC:0000875320-25-000007:0
225 shares@ US$418.102.9% of flowCommon StockSEC:0000875320-24-000113:0
828 shares@ US$431.7911.1% of flowCommon StockSEC:0000875320-24-000097:0
591 shares@ US$422.747.8% of flowCommon StockSEC:0000875320-24-000041:0
1,374 shares@ US$420.2418.0% of flowCommon StockSEC:0000875320-24-000041:1
2,950 shares0Common StockSEC:0000875320-24-000016:0
289 shares@ US$329.823.0% of flowCommon StockSEC:0001209191-23-033312:0
176 shares@ US$313.741.7% of flowCommon StockSEC:0001209191-23-022689:0
502 shares@ US$289.124.6% of flowCommon StockSEC:0001209191-23-013695:0
2,566 shares0Common StockSEC:0001209191-23-006879:0
60 shares@ US$267.370.0000% mcap31.5% of flowCommon StockSEC:0000899243-22-015762:0
137 shares@ US$263.090.0000% mcap68.5% of flowCommon StockSEC:0000899243-22-013713:0
2,566 shares0Common StockSEC:0001209191-22-006761:0
24 of 24 declarations
About Ambrose Kristen
Kristen Ambrose is the Chief Accounting Officer and Senior Vice President at Vertex Pharmaceuticals Inc / MA. She oversees the company's accounting practices and plays a key role in compliance and financial management.
