Vertex Pharmaceuticals Incorporated
US ˙ NasdaqGS ˙ US92532F1003

SecurityVRTX / Vertex Pharmaceuticals Incorporated
InstitutionWestpac Banking Corp
Latest Disclosed Ownership2,529 shares
Latest Disclosed Value $ 1,129,300
Westpac Banking Corp reports 2.92% decrease in ownership of VRTX / Vertex Pharmaceuticals Incorporated

On May 11, 2026 - Westpac Banking Corp filed a 13F-HR form disclosing ownership of 2,529 shares of Vertex Pharmaceuticals Incorporated (US:VRTX) valued at $1,129,300 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 2,605 shares of Vertex Pharmaceuticals Incorporated. This represents a change in shares of -2.92% during the quarter. The current value of the position is $1,083,272 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)
2026-05-11 2026-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 2,529 -76 -2.92 1,129 -4.40 0.0393
2026-02-10 2025-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 2,605 131 5.30 1,181 22.00 0.0746
2025-11-14 2025-09-30 13F/A-1 VERTEX PHARMACEUTICALS INC USD 0.01 COM 92532F100 2,474 -271 -9.87 969 -20.79 0.0600
2025-11-12 2025-09-30 13F VERTEX PHARMACEUTICALS INC USD 0.01 COM 92532F100 2,474 -271 969 0.0243
2025-08-11 2025-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 2,745 72 2.69 1,222 -5.64 0.0817
2025-05-13 2025-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 2,673 -609 -18.56 1,296 -1.97 0.0953
2025-02-12 2024-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 3,282 -124 -3.64 1,322 -16.60 0.0877
2024-11-08 2024-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 3,406 128 3.90 1,584 3.13 0.1062
2024-08-14 2024-06-30 13F/A-1 VERTEX PHARMACEUTICALS COM 92532F100 3,278 381 13.15 1,536 26.94 0.1219
2024-08-13 2024-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 981 -1,916 1,536 0.0528
2024-05-09 2024-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 2,897 -659 -18.53 1,211 -16.32 0.0923
2024-02-08 2023-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 3,556 83 2.39 1,447 19.80 0.1193
2023-11-13 2023-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 3,473 -3,076 -46.97 1,208 -47.61 0.0904
2023-08-10 2023-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 6,549 -38,130 -85.34 2,305 -83.63 0.1626
2023-05-04 2023-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 44,679 -5,349 -10.69 14,077 -2.56 0.1892
2023-02-06 2022-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 50,028 13,809 38.13 14,447 37.77 0.2136
2022-11-08 2022-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 36,219 -3,850 -9.61 10,487 -7.13 0.1599
2022-08-10 2022-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 40,069 -1,502 -3.61 11,291 4.08 0.1471
2022-05-11 2022-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 41,571 15,571 59.89 10,849 90.02 0.1245
2022-02-08 2021-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 26,000 -73 -0.28 5,710 20.72 0.0591
2021-10-27 2021-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 26,073 -42,566 -62.01 4,729 -65.83 0.0506
2021-08-11 2021-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 68,639 4,542 7.09 13,840 0.48 0.1390
2021-05-13 2021-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 64,097 359 0.56 13,774 -8.56 0.1520
2021-02-11 2020-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 63,738 27,140 74.16 15,064 51.25 0.1710
2020-11-10 2020-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 36,598 3,285 9.86 9,959 2.98 0.1349
2020-08-12 2020-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 33,313 -5,899 -15.04 9,671 3.65 0.1442
2020-05-14 2020-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 39,212 14,704 60.00 9,330 73.87 0.1608
2020-02-11 2019-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 24,508 2,116 9.45 5,366 41.47 0.0691
2019-11-13 2019-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 22,392 0 0.00 3,794 -7.62 0.0527
2019-08-01 2019-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 22,392 -47,461 -67.94 4,106 -68.04 0.0627
2019-05-14 2019-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 69,853 -37,819 -35.12 12,849 -27.98 0.2121
2019-02-07 2018-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 107,672 -6,256 -5.49 17,842 -18.74 0.3041
2018-11-13 2018-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 113,928 -18,638 -14.06 21,958 -2.54 0.3765
2018-07-18 2018-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 132,566 -577 -0.43 22,531 3.83 0.4329
2018-05-01 2018-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 133,143 16,991 14.63 21,700 24.66 0.4333
2018-01-18 2017-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 116,152 40,100 52.73 17,407 50.54 0.3955
2017-10-30 2017-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 76,052 42,281 125.20 11,563 165.67 0.2546
2017-08-09 2017-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 33,771 -17,855 -34.59 4,352 -22.91 0.0958
2017-05-18 2017-03-31 13F/A-1 VERTEX PHARMACEUTICALS COM 92532F100 51,626 -1,563 -2.94 5,645 30.40 0.0452
2017-05-11 2017-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 31,016 2,465
2017-02-09 2016-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 53,189 3,000 5.98 4,330 -1.07 0.0408
2016-11-10 2016-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 50,189 2,986 6.33 4,377 7.78 0.0473
2016-08-10 2016-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 47,203 16,187 52.19 4,060 64.71 0.0445
2016-05-13 2016-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 31,016 20,415 192.58 2,465 84.92 0.0268
2016-02-11 2015-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 10,601 -26,919 -71.75 1,334 -65.88 0.0148
2015-11-16 2015-09-30 13F/A-1 VERTEX PHARMACEUTICALS COM 92532F100 37,520 4,119 12.33 3,907 -5.26 0.0430
2015-11-12 2015-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 37,520 3,907
2015-08-12 2015-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 33,401 -4,097 -10.93 4,124 -19.91 0.0403
2015-05-12 2015-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 37,498 664 1.80 5,149 17.69 0.0447
2015-02-11 2014-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 36,834 -1,300 -3.41 4,376 2.17 0.0416
2014-11-12 2014-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 38,134 22,500 143.92 4,283 189.32 0.0417
2014-08-11 2014-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 15,634 -128 -0.81 1,480 32.85 0.0143
2014-05-12 2014-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 15,762 -59,300 -79.00 1,115 -80.02 0.0119
2014-02-13 2013-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 75,062 61,551 455.56 5,577 444.53 0.0638
2013-11-12 2013-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 13,511 -1,528 -10.16 1,024 -4.57 0.0128
2013-08-14 2013-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 15,039 15,039 1,073 0.0164
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.