Quanta Services, Inc.
MX ˙ BMV ˙ US74762E1029
SecurityMX:PWR / Quanta Services, Inc.
InstitutionVontobel Holding Ltd.
Latest Disclosed Ownership133,356 shares
Latest Disclosed Value $ 73,215,112
Vontobel Holding Ltd. reports 13.08% decrease in ownership of PWR / Quanta Services, Inc.

On May 8, 2026 - Vontobel Holding Ltd. filed a 13F-HR form disclosing ownership of 133,356 shares of Quanta Services, Inc. (MX:PWR) valued at $73,215,112 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 153,430 shares of Quanta Services, Inc.. This represents a change in shares of -13.08% during the quarter.

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)
2026-05-08 2026-03-31 13F QUANTA SVCS COM 74762E102 133,356 -20,074 -13.08 73,215 13.06 0.2517
2026-02-13 2025-12-31 13F QUANTA SVCS COM 74762E102 153,430 -7,612 -4.73 64,757 -2.97 0.2040
2025-10-15 2025-09-30 13F QUANTA SVCS COM 74762E102 161,042 -24,511 -13.21 66,739 -4.87 0.2015
2025-07-23 2025-06-30 13F QUANTA SVCS COM 74762E102 185,553 -29,714 -13.80 70,154 28.21 0.2235
2025-04-28 2025-03-31 13F QUANTA SVCS COM 74762E102 215,267 -78,837 -26.81 54,717 -41.13 0.1995
2025-01-30 2024-12-31 13F QUANTA SVCS COM 74762E102 294,104 -56,809 -16.19 92,952 -11.16 0.3181
2024-10-16 2024-09-30 13F QUANTA SVCS COM 74762E102 350,913 15,237 4.54 104,625 22.67 0.3377
2024-08-13 2024-06-30 13F QUANTA SVCS COM 74762E102 335,676 5,163 1.56 85,292 -0.67 0.2770
2024-05-10 2024-03-31 13F QUANTA SVCS COM 74762E102 330,513 -54,977 -14.26 85,867 3.22 0.6865
2024-06-04 2023-12-31 13F/A-1 QUANTA SVCS COM 74762E102 385,490 -41,183 -9.65 83,189 4.22 0.6967
2024-01-30 2023-12-31 13F QUANTA SVCS COM 74762E102 730,209 -76,667 157,579 0.7913
2024-06-04 2023-09-30 13F/A-1 QUANTA SVCS COM 74762E102 426,673 -7,117 -1.64 79,818 -6.34 0.7371
2023-10-11 2023-09-30 13F QUANTA SVCS COM 74762E102 806,876 -9,386 150,942 0.8419
2024-06-04 2023-06-30 13F/A-1 QUANTA SVCS COM 74762E102 433,790 3,475 0.81 85,218 18.84 0.7477
2023-07-24 2023-06-30 13F QUANTA SVCS COM 74762E102 816,262 385,947 160,355 0.8506
2024-06-04 2023-03-31 13F/A-1 QUANTA SVCS COM 74762E102 430,315 -17,439 -3.89 71,708 13.32 0.6672
2023-04-12 2023-03-31 13F QUANTA SVCS COM 74762E102 808,127 360,373 134,666 0.7660
2023-02-14 2022-12-31 13F QUANTA SVCS COM 74762E102 447,754 -20,212 -4.32 63,277 5.70 0.6386
2022-11-04 2022-09-30 13F QUANTA SVCS COM 74762E102 467,966 -75,245 -13.85 59,866 -7.97 0.6990
2022-07-27 2022-06-30 13F QUANTA SVCS COM 74762E102 543,211 -38,773 -6.66 65,051 -15.42 0.7033
2022-05-13 2022-03-31 13F QUANTA SVCS COM 74762E102 581,984 28,154 5.08 76,915 23.09 0.6648
2022-02-14 2021-12-31 13F/A-1 QUANTA SVCS COM 74762E102 553,830 25,747 4.88 62,488 3.96 0.5193
2022-02-10 2021-12-31 13F QUANTA SVCS COM 74762E102 528,083 0 60,107 0.2281
2021-10-29 2021-09-30 13F QUANTA SVCS COM 74762E102 528,083 49,522 10.35 60,107 38.46 0.5302
2021-08-06 2021-06-30 13F QUANTA SVCS COM 74762E102 478,561 16,746 3.63 43,410 6.84 0.3751
2021-05-11 2021-03-31 13F QUANTA SVCS COM 74762E102 461,815 52,781 12.90 40,631 29.71 0.3012
2021-02-12 2020-12-31 13F/A-1 QUANTA SVCS COM 74762E102 409,034 409,034 31,324 0.2053
2021-02-12 2020-12-31 13F QUANTA SVCS COM 74762E102 409,034 31,324 0.2053
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.