Kristen Ambrose

CIK 1856587 · SVP & Chief Accounting Officer · last filed 2026-03-02

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$3.63M

Companies

1

Total Filings

23

Lifetime Open-Market Net

-$4.93M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
VRTX SVP & Chief Accounting Officer 6,624 $547.29 $3.63M -$4.93M 23 2026-03-02

Recent Filings · Page 2 of 3

23 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2025-02-12 VRTX Mixed −1,967 -$909.3K EDGAR
2025-02-06 VRTX Grant (A) +4,420 $0 EDGAR
2024-04-03 VRTX Mixed −465 -$194.6K EDGAR
2024-02-27 VRTX Mixed −1,711 -$733.4K EDGAR
2024-02-13 VRTX Mixed −1,965 -$827.2K EDGAR
2024-02-08 VRTX Grant (A) +4,803 $0 EDGAR
2023-06-01 VRTX Sell (S) −289 -$95.3K EDGAR
2023-04-04 VRTX Tax (F) −176 -$55.2K EDGAR
2023-02-28 VRTX Mixed −1,709 -$492.2K EDGAR
2023-02-03 VRTX Grant (A) +5,516 $0 EDGAR
Showing 1120 of 23
Page 2 of 3
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.