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Home/Insiders/Ambrose Kristen

Ambrose Kristen

Insider

Insider
Total trades
31
Bought (open market)
$0
Sold (open market)
$4.4M
Tickers traded
1
Ambrose Kristen, SVP & Chief Accounting Officer, has demonstrated a consistent pattern of selling shares in Vertex Pharmaceuticals (VRTX) over the past two years, with no recorded purchases. According to SEC Form 4 filings, Kristen executed 30 transactions totaling over $8.14 million in sales, with no offsetting buys. The most recent activity, concentrated in February 2026, included multiple sales ranging from $108,456 to $762,089, with the largest single transaction occurring on February 17, 2026. Earlier transactions followed a similar trend, including a $425,160 sale on February 25, 2025, and a $375,893 sale on February 26, 2024. The filings also show periodic awards (coded "A") and dispositions to satisfy tax obligations (coded "F"), but the overwhelming majority of activity involves outright sales (coded "S"). Notably, the transactions cluster around mid-to-late February annually, suggesting a possible structured selling plan tied to equity compensation vesting. The absence of buying activity and the repeated liquidation of shares indicate a clear disposition bias toward reducing exposure to VRTX stock. While the sales represent a significant divestment, the consistency in timing and method points to a systematic approach rather than discretionary trading.

AI-assisted summary

12-month activity

Monthly buy vs sell totals from Ambrose Kristen's Form 4 filings.

BuysSellsFilings with no price (gifts, grants)
Show data table
MonthBuysSellsFilings
October 2025$0$00
November 2025$0$00
December 2025$0$00
January 2026$0$02
February 2026$0$2M10
March 2026$0$00
April 2026$0$00
May 2026$0$00
June 2026$0$00
July 2026$0$00
August 2026$0$01
September 2026$0$00

Recent trades

Most recent Form 4 filings by Ambrose Kristen.

  • Ambrose Kristengranted5,000 shares ofVRTXat $0Aug 28 · filed Sep 1Details
  • Ambrose Kristensold357 shares ofVRTXat $483.36$173KFeb 26 · filed Mar 2Details
  • Ambrose Kristensold223 shares ofVRTXat $486.35$108KFeb 25 · filed Feb 26Details

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  • Ambrose Kristentax-withheld546 shares ofVRTXat $485.11$265KFeb 24 · filed Feb 26Details
  • Ambrose Kristensold638 shares ofVRTXat $473.68$302KFeb 18 · filed Feb 19Details
  • Ambrose Kristensold1,557 shares ofVRTXat $489.46$762KFeb 17 · filed Feb 19Details
  • Ambrose Kristentax-withheld598 shares ofVRTXat $483.75$289KFeb 17 · filed Feb 19Details
  • Ambrose Kristengranted1,809 shares ofVRTXat $0Feb 17 · filed Feb 19Details
  • Ambrose Kristentax-withheld1,393 shares ofVRTXat $487.76$679KFeb 13 · filed Feb 18Details
  • Ambrose Kristensold1,376 shares ofVRTXat $460.43$634KFeb 11 · filed Feb 12Details
  • Ambrose Kristentax-withheld592 shares ofVRTXat $468.41$277KFeb 10 · filed Feb 12Details
  • Ambrose Kristengranted1,300 shares ofVRTXat $0Jan 22 · filed Jan 26Details
  • Ambrose Kristengranted2,950 shares ofVRTXat $0Jan 22 · filed Jan 26Details
  • Ambrose Kristentax-withheld1,241 shares ofVRTXat $479.61$595KFeb 26, 2025 · filed Feb 28, 2025Details
  • Ambrose Kristensold884 shares ofVRTXat $480.95$425KFeb 25, 2025 · filed Feb 26, 2025Details
  • Ambrose Kristentax-withheld828 shares ofVRTXat $483.28$400KFeb 24, 2025 · filed Feb 26, 2025Details
  • Ambrose Kristensold671 shares ofVRTXat $455.06$305KFeb 18, 2025 · filed Feb 19, 2025Details
  • Ambrose Kristentax-withheld564 shares ofVRTXat $463.46$261KFeb 14, 2025 · filed Feb 19, 2025Details
  • Ambrose Kristengranted2,080 shares ofVRTXat $0Feb 12, 2025 · filed Feb 14, 2025Details
  • Ambrose Kristensold1,376 shares ofVRTXat $459.83$633KFeb 11, 2025 · filed Feb 12, 2025Details
  • View all 31 trades →