VERTEX PHARMACEUTICALS INC

Ticker: VRTX CUSIP: 92532F100 Class: EQTY

Chesley Taft & Associates LLC's Holding History (CIK: 0001164632)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 782 Value ($000) $355 Avg Close $431.03 Range $392.50 - $464.44
Q3 2025
Shares 563 Value ($000) $220 Avg Close $417.92 Range $362.50 - $484.56
Q2 2025
Shares 596 Value ($000) $265 Avg Close $460.83 Range $416.60 - $510.77
Q1 2025
Shares 486 Value ($000) $236 Avg Close $466.00 Range $397.25 - $519.68
Q3 2021
Shares 3,154 Value ($000) $572 Avg Close $195.24 Range $180.02 - $204.88
Q2 2021
Shares 3,814 Value ($000) $769 Avg Close $209.17 Range $185.33 - $222.78
Q1 2021
Shares 3,814 Value ($000) $821 Avg Close $219.65 Range $204.62 - $242.99
Q4 2020
Shares 8,389 Value ($000) $1,983 Avg Close $229.44 Range $202.57 - $280.99
Q3 2020
Shares 11,439 Value ($000) $3,113 Avg Close $275.88 Range $253.97 - $306.08
Q2 2020
Shares 9,757 Value ($000) $2,833 Avg Close $271.12 Range $222.39 - $299.21
Q1 2020
Shares 2,017 Value ($000) $480 Avg Close $229.39 Range $197.47 - $249.85
Q4 2019
Shares 2,042 Value ($000) $447 Avg Close $202.38 Range $165.23 - $225.66
Q3 2019
Shares 1,549 Value ($000) $262 Avg Close $176.91 Range $165.27 - $188.44