Vertex Pharmaceuticals Incorporated
US ˙ NasdaqGS ˙ US92532F1003

SecurityVRTX / Vertex Pharmaceuticals Incorporated
InstitutionDe Burlo Group Inc
Latest Disclosed Ownership4,755 shares
Latest Disclosed Value $ 2,123,298
De Burlo Group Inc reports 0.63% decrease in ownership of VRTX / Vertex Pharmaceuticals Incorporated

On May 14, 2026 - De Burlo Group Inc filed a 13F-HR form disclosing ownership of 4,755 shares of Vertex Pharmaceuticals Incorporated (US:VRTX) valued at $2,123,298 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 4,785 shares of Vertex Pharmaceuticals Incorporated. This represents a change in shares of -0.63% during the quarter. The current value of the position is $2,036,757 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)
2026-05-14 2026-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 4,755 -30 -0.63 2,123 -2.12 0.4812
2026-02-13 2025-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 4,785 -240 -4.78 2,169 10.27 0.2633
2025-11-13 2025-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 5,025 -43,740 -89.70 1,968 -90.94 0.2371
2025-08-13 2025-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 48,765 30 0.06 21,710 -8.11 2.8601
2025-05-07 2025-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 48,735 0 0.00 23,628 20.39 3.4884
2025-02-14 2024-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 48,735 -460 -0.94 19,626 -14.22 2.6191
2024-11-12 2024-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 49,195 630 1.30 22,880 0.51 2.8173
2024-08-14 2024-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 48,565 8,525 21.29 22,763 36.00 3.0598
2024-05-13 2024-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 40,040 -24,725 -38.18 16,737 -25.68 2.2214
2024-02-13 2023-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 64,765 0 0.00 22,521 0.00 3.9127
2023-11-13 2023-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 64,765 715 1.12 22,521 -0.08 3.9127
2023-08-14 2023-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 64,050 8,310 14.91 22,540 28.34 3.7505
2023-05-15 2023-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 55,740 0 0.00 17,562 9.11 3.4300
2023-02-14 2022-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 55,740 -6,680 -10.70 16,097 -99.91 3.5970
2022-11-14 2022-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 62,420 62,420 18,073,087 4.3021
2022-08-11 2022-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 0 -68,410 -100.00 0 -100.00
2022-05-16 2022-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 68,410 68,410 17,852,958 3.3248
2021-02-05 2020-12-31 13F VERTEX PHARMACEUTICAL COM 92532F100 0 -810 -100.00 0 -100.00
2020-11-05 2020-09-30 13F VERTEX PHARMACEUTICAL COM 92532F100 810 -74,110 -98.92 220 -98.77 0.0400
2020-08-06 2020-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 74,920 0 0.00 17,827 0.00 4.9961
2020-05-07 2020-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 74,920 920 1.24 17,827 10.03 4.9961
2020-02-06 2019-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 74,000 74,000 16,202 3.2738
2018-08-10 2018-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 0 -44,800 -100.00 0 -100.00
2018-05-03 2018-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 44,800 26,900 150.28 7,301 172.22 1.5896
2018-02-08 2017-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 17,900 -17,700 -49.72 2,682 -50.44 0.5433
2017-11-02 2017-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 35,600 35,600 5,412 1.1995
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.