Vertex Pharmaceuticals Incorporated
US ˙ NasdaqGS ˙ US92532F1003

SecurityVRTX / Vertex Pharmaceuticals Incorporated
InstitutionAdirondack Trust Co
Latest Disclosed Ownership459 shares
Latest Disclosed Value $ 204,945
Adirondack Trust Co reports 4.97% decrease in ownership of VRTX / Vertex Pharmaceuticals Incorporated

On April 3, 2026 - Adirondack Trust Co filed a 13F-HR form disclosing ownership of 459 shares of Vertex Pharmaceuticals Incorporated (US:VRTX) valued at $204,962 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 8, 2026 disclosing 483 shares of Vertex Pharmaceuticals Incorporated. This represents a change in shares of -4.97% during the quarter. The current value of the position is $196,608 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-03 2026-03-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 459 -24 -4.97 205 -6.42 0.0689
2026-01-08 2025-12-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 483 26 5.69 219 22.47 0.0720
2025-10-20 2025-09-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 457 0 0.00 179 -12.32 0.0600
2025-07-11 2025-06-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 457 -4 -0.87 203 -8.97 0.0739
2025-04-03 2025-03-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 461 12 2.67 223 23.89 0.0873
2025-01-17 2024-12-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 449 0 0.00 181 -13.46 0.0690
2024-10-08 2024-09-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 449 -50 -10.02 209 -10.73 0.0804
2024-07-09 2024-06-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 499 -9 -1.77 234 9.91 0.0955
2024-04-09 2024-03-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 508 0 0.00 212 -0.47 0.0889
2024-03-29 2023-12-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 508 -9 -1.74 214 18.99 0.0924
2023-10-31 2023-09-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 517 -40 -7.18 180 -8.67 0.0897
2023-08-09 2023-06-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 557 -10 -1.76 196 10.11 0.0917
2023-04-28 2023-03-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 567 -14 -2.41 179 6.59 0.0905
2023-01-13 2022-12-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 581 106 22.32 168 21.01 0.0868
2022-10-13 2022-09-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 475 58 13.91 138 17.95 0.0771
2022-07-06 2022-06-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 417 129 44.79 117 56.00 0.0627
2022-04-05 2022-03-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 288 226 364.52 75 435.71 0.0355
2022-01-13 2021-12-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 62 0 0.00 14 27.27 0.0067
2021-11-16 2021-09-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 62 37 148.00 11 120.00 0.0052
2021-07-15 2021-06-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 25 0 0.00 5 0.00 0.0025
2021-04-16 2021-03-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 25 0 0.00 5 -16.67 0.0027
2021-02-12 2020-12-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 25 0 0.00 6 -14.29 0.0036
2020-10-05 2020-09-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 25 0 0.00 7 0.00 0.0046
2020-08-19 2020-06-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 25 0 0.00 7 16.67 0.0046
2020-04-23 2020-03-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 25 0 0.00 6 0.00 0.0049
2020-02-11 2019-12-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 25 0 0.00 6 50.00 0.0039
2019-10-09 2019-09-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 25 -80 -76.19 4 -80.00 0.0028
2019-07-15 2019-06-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 105 0 0.00 20 11.11 0.0140
2019-05-13 2019-03-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 105 0 0.00 18 5.88 0.0124
2019-01-18 2018-12-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 105 0 0.00 17 -15.00 0.0132
2018-10-22 2018-09-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 105 0 0.00 20 11.11 0.0135
2018-07-26 2018-06-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 105 0 0.00 18 12.50 0.0127
2018-05-03 2018-03-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 105 0 0.00 16 0.00 0.0114
2018-01-10 2017-12-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 105 0 0.00 16 0.00 0.0116
2017-10-12 2017-09-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 105 80 320.00 16 433.33 0.0126
2017-08-02 2017-06-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 25 0 0.00 3 0.00 0.0024
2017-04-12 2017-03-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 25 -205 -89.13 3 -82.35 0.0021
2017-01-17 2016-12-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 230 0 0.00 17 -15.00 0.0118
2016-10-21 2016-09-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 230 0 0.00 20 0.00 0.0144
2016-07-13 2016-06-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 230 25 12.20 20 25.00 0.0142
2016-04-12 2016-03-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 205 0 0.00 16 -15.79 0.0119
2016-02-08 2015-12-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 205 25 13.89 19 0.00 0.0150
2015-10-19 2015-09-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 180 70 63.64 19 35.71 0.0153
2015-07-30 2015-06-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 110 -25 -18.52 14 -12.50 0.0104
2015-04-07 2015-03-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 135 135 0.00 16 0.0120
2015-01-27 2014-12-31 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 0 -100 -100.00 0 -100.00
2014-10-28 2014-09-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 100 0 0.00 11 22.22 0.0083
2014-07-23 2014-06-30 13F VERTEX PHARMACEUTICALS HEALTHCARE 92532F100 100 100 9 0.0069
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.