Vertex Pharmaceuticals Incorporated
US ˙ NasdaqGS ˙ US92532F1003

SecurityVRTX / Vertex Pharmaceuticals Incorporated
InstitutionClearbridge Investments, LLC
Latest Disclosed Ownership2,700,975 shares
Latest Disclosed Value $ 1,206,093,269
Clearbridge Investments, LLC reports 5.57% decrease in ownership of VRTX / Vertex Pharmaceuticals Incorporated

On May 13, 2026 - Clearbridge Investments, LLC filed a 13F-HR form disclosing ownership of 2,700,975 shares of Vertex Pharmaceuticals Incorporated (US:VRTX) valued at $1,206,093,376 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 2,860,176 shares of Vertex Pharmaceuticals Incorporated. This represents a change in shares of -5.57% during the quarter. The current value of the position is $1,206,876,659 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)
2026-05-13 2026-03-31 13F Vertex Pharmaceuticals COM 92532F100 2,700,975 -159,201 -5.57 1,206,093 -6.99 1.0498
2026-02-11 2025-12-31 13F Vertex Pharmaceuticals COM 92532F100 2,860,176 214,412 8.10 1,296,689 25.14 1.0382
2025-11-13 2025-09-30 13F Vertex Pharmaceuticals COM 92532F100 2,645,764 1,117,900 73.17 1,036,187 52.33 0.7802
2025-08-12 2025-06-30 13F Vertex Pharmaceuticals COM 92532F100 1,527,864 -151,307 -9.01 680,205 -16.45 0.5523
2025-05-13 2025-03-31 13F Vertex Pharmaceuticals COM 92532F100 1,679,171 -171,687 -9.28 814,096 9.22 0.7113
2025-02-12 2024-12-31 13F Vertex Pharmaceuticals COM 92532F100 1,850,858 -121,197 -6.15 745,340 -18.73 0.6040
2024-11-12 2024-09-30 13F Vertex Pharmaceuticals COM 92532F100 1,972,055 -118,649 -5.68 917,163 -6.41 0.7212
2024-08-27 2024-06-30 13F/A-1 Vertex Pharmaceuticals COM 92532F100 2,090,704 -337,751 -13.91 979,955 -3.46 0.7959
2024-08-14 2024-06-30 13F Vertex Pharmaceuticals COM 92532F100 2,090,704 -337,751 979,955 0.8014
2024-05-13 2024-03-31 13F Vertex Pharmaceuticals COM 92532F100 2,428,455 -164,120 -6.33 1,015,119 -3.77 0.8047
2024-02-09 2023-12-31 13F Vertex Pharmaceuticals COM 92532F100 2,592,575 -350,609 -11.91 1,054,893 3.07 0.9076
2023-11-13 2023-09-30 13F Vertex Pharmaceuticals COM 92532F100 2,943,184 -208,238 -6.61 1,023,463 -7.71 0.9846
2023-08-11 2023-06-30 13F Vertex Pharmaceuticals COM 92532F100 3,151,422 -186,319 -5.58 1,109,017 5.46 1.0008
2023-05-12 2023-03-31 13F Vertex Pharmaceuticals COM 92532F100 3,337,741 -148,379 -4.26 1,051,622 4.46 1.0049
2023-02-10 2022-12-31 13F Vertex Pharmaceuticals COM 92532F100 3,486,120 -414,736 -10.63 1,006,722 -10.87 0.9943
2022-11-14 2022-09-30 13F Vertex Pharmaceuticals COM 92532F100 3,900,856 -342,408 -8.07 1,129,454 -5.54 1.1389
2022-08-11 2022-06-30 13F Vertex Pharmaceuticals COM 92532F100 4,243,264 -909,488 -17.65 1,195,709 -11.08 1.1144
2022-05-13 2022-03-31 13F Vertex Pharmaceuticals COM 92532F100 5,152,752 -43,978 -0.85 1,344,714 17.83 1.0105
2022-02-11 2021-12-31 13F Vertex Pharmaceuticals COM 92532F100 5,196,730 84,326 1.65 1,141,202 23.06 0.7773
2021-11-12 2021-09-30 13F Vertex Pharmaceuticals COM 92532F100 5,112,404 129,810 2.61 927,339 -7.69 0.6611
2021-08-13 2021-06-30 13F Vertex Pharmaceuticals COM 92532F100 4,982,594 -538,616 -9.76 1,004,640 -15.32 0.6990
2021-05-13 2021-03-31 13F Vertex Pharmaceuticals COM 92532F100 5,521,210 1,244,784 29.11 1,186,453 17.39 0.8847
2021-02-10 2020-12-31 13F Vertex Pharmaceuticals COM 92532F100 4,276,426 -194,854 -4.36 1,010,691 -16.93 0.7807
2020-11-12 2020-09-30 13F Vertex Pharmaceuticals COM 92532F100 4,471,280 304,248 7.30 1,216,725 0.58 1.0459
2020-08-14 2020-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 4,167,032 325,938 8.49 1,209,731 32.36 1.0922
2020-05-22 2020-03-31 13F/A-1 VERTEX PHARMACEUTICALS COM 92532F100 3,841,094 -283,619 -6.88 913,988 0.97 0.9907
2020-05-15 2020-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 3,841,094 -283,619 913,988 990,788.6342
2020-02-14 2019-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 4,124,713 -891,172 -17.77 905,168 6.52 0.7498
2019-11-14 2019-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 5,015,885 -161,981 -3.13 849,791 -10.50 0.7417
2019-08-14 2019-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 5,177,866 -136,839 -2.57 949,517 -2.88 0.8229
2019-05-15 2019-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 5,314,705 -168,447 -3.07 977,640 7.60 0.8638
2019-02-14 2018-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 5,483,152 -62,814 -1.13 908,613 -15.00 0.9191
2018-11-28 2018-09-30 13F/A-1 VERTEX PHARMACEUTICALS COM 92532F100 5,545,966 -454,501 -7.57 1,068,929 4.81 0.9200
2018-11-14 2018-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 5,545,966 -454,501 1,068,929
2018-08-14 2018-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 6,000,467 -390,259 -6.11 1,019,839 -2.09 0.8348
2018-05-15 2018-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 6,390,726 -294,943 -4.41 1,041,560 3.96 0.9829
2018-02-14 2017-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 6,685,669 -394,502 -5.57 1,001,914 -6.93 0.9257
2017-11-14 2017-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 7,080,171 -838,582 -10.59 1,076,469 5.49 1.0353
2017-08-14 2017-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 7,918,753 -835,865 -9.55 1,020,490 6.60 1.0029
2017-06-07 2017-03-31 13F/A-1 VERTEX PHARMACEUTICALS COM 92532F100 8,754,618 105,260 1.22 957,317 50.24 0.9630
2017-05-15 2017-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 8,754,618 957,317
2017-02-14 2016-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 8,649,358 1,350,349 18.50 637,198 0.10 0.7004
2016-11-14 2016-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 7,299,009 -275,774 -3.64 636,547 -2.31 0.7168
2016-08-15 2016-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 7,574,783 -48,541 -0.64 651,583 7.53 0.7699
2016-05-16 2016-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 7,623,324 -88,934 -1.15 605,978 -37.56 0.7239
2016-02-16 2015-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 7,712,258 -80,021 -1.03 970,433 19.59 1.1238
2015-11-16 2015-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 7,792,279 -69,102 -0.88 811,488 -16.40 0.9714
2015-08-17 2015-06-30 13F/A-1 VERTEX PHARMACEUTICALS COM 92532F100 7,861,381 -64,673 -0.82 970,723 3.82 1.0265
2015-08-14 2015-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 7,875,931 972,520
2015-05-15 2015-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 7,926,054 402,429 5.35 935,037 4.61 0.9708
2015-02-17 2014-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 7,523,625 -75,546 -0.99 893,807 4.73 0.9401
2014-11-14 2014-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 7,599,171 49,753 0.66 853,463 19.40 0.9396
2014-08-14 2014-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 7,549,418 292,041 4.02 714,779 39.27 0.8039
2014-05-15 2014-03-31 13F VERTEX PHARMACEUTICALS COM 92532F100 7,257,377 355,907 5.16 513,242 0.09 0.6092
2014-02-14 2013-12-31 13F VERTEX PHARMACEUTICALS COM 92532F100 6,901,470 1,013,429 17.21 512,779 14.86 0.6392
2013-11-14 2013-09-30 13F VERTEX PHARMACEUTICALS COM 92532F100 5,888,041 285,231 5.09 446,431 -0.47 0.6234
2013-08-14 2013-06-30 13F VERTEX PHARMACEUTICALS COM 92532F100 5,602,810 5,602,810 448,561 0.6848
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.