Vertex Pharmaceuticals Incorporated
US ˙ NasdaqGS ˙ US92532F1003

SecurityVRTX / Vertex Pharmaceuticals Incorporated
InstitutionAltfest L J & Co Inc
Latest Disclosed Ownership500 shares
Latest Disclosed Value $ 223,270
Altfest L J & Co Inc reports 72.59% decrease in ownership of VRTX / Vertex Pharmaceuticals Incorporated

On April 28, 2026 - Altfest L J & Co Inc filed a 13F-HR form disclosing ownership of 500 shares of Vertex Pharmaceuticals Incorporated (US:VRTX) valued at $223,270 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 1,824 shares of Vertex Pharmaceuticals Incorporated. This represents a change in shares of -72.59% during the quarter. The current value of the position is $214,170 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)
2026-04-28 2026-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 500 -1,324 -72.59 223 -73.00 0.0237
2026-01-23 2025-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 1,824 67 3.81 827 20.06 0.0905
2025-10-21 2025-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 1,757 -9 -0.51 688 -12.47 0.0768
2025-08-08 2025-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 1,766 120 7.29 786 -1.50 0.0927
2025-05-09 2025-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 1,646 975 145.31 798 195.56 0.1001
2025-02-07 2024-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 671 -972 -59.16 270 0.0345
2024-11-05 2024-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 1,643 171 11.62 1 0.1017
2024-08-07 2024-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 1,472 35 2.44 1 0.0943
2024-04-22 2024-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 1,437 5 0.35 1 0.0851
2024-01-18 2023-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 1,432 -18 -1.24 1 0.0845
2023-10-26 2023-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 1,450 -82 -5.35 1 0.0795
2023-08-09 2023-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 1,532 76 5.22 1 0.0810
2023-04-20 2023-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 1,456 176 13.75 0 0.0719
2023-02-02 2022-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 1,280 -1,175 -47.86 0 -100.00 0.0613
2022-11-15 2022-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 2,455 -3 -0.12 711 2.60 0.1333
2022-08-04 2022-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 2,458 -569 -18.80 693 -12.28 0.1245
2022-05-02 2022-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 3,027 81 2.75 790 22.10 0.1409
2022-01-24 2021-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 2,946 -15 -0.51 647 20.48 0.1234
2021-10-12 2021-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 2,961 1,170 65.33 537 48.75 0.1125
2021-07-28 2021-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 1,791 216 13.71 361 6.80 0.0778
2021-05-07 2021-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 1,575 22 1.42 338 -7.90 0.0799
2021-01-21 2020-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 1,553 1,553 367 0.0899
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.