Quanta Services, Inc.
MX ˙ BMV ˙ US74762E1029
SecurityMX:PWR / Quanta Services, Inc.
InstitutionArizona State Retirement System
Latest Disclosed Ownership40,528 shares
Latest Disclosed Value $ 22,250,683
Arizona State Retirement System reports 0.97% decrease in ownership of PWR / Quanta Services, Inc.

On May 1, 2026 - Arizona State Retirement System filed a 13F-HR form disclosing ownership of 40,528 shares of Quanta Services, Inc. (MX:PWR) valued at $22,250,683 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 40,926 shares of Quanta Services, Inc.. This represents a change in shares of -0.97% 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)
2026-05-01 2026-03-31 13F QUANTA SVCS COM 74762E102 40,528 -398 -0.97 22,251 28.81 0.1301
2026-01-28 2025-12-31 13F QUANTA SVCS COM 74762E102 40,926 -2,819 -6.44 17,273 -4.72 0.0940
2025-11-03 2025-09-30 13F QUANTA SVCS COM 74762E102 43,745 430 0.99 18,129 10.70 0.0966
2025-08-13 2025-06-30 13F QUANTA SVCS COM 74762E102 43,315 627 1.47 16,377 50.93 0.0944
2025-05-01 2025-03-31 13F QUANTA SVCS COM 74762E102 42,688 -104 -0.24 10,850 -19.77 0.0691
2025-02-06 2024-12-31 13F QUANTA SVCS COM 74762E102 42,792 851 2.03 13,524 8.16 0.0827
2024-11-12 2024-09-30 13F QUANTA SVCS COM 74762E102 41,941 1,730 4.30 12,505 22.38 0.0789
2024-08-05 2024-06-30 13F QUANTA SVCS COM 74762E102 40,211 251 0.63 10,217 -1.58 0.0682
2024-05-07 2024-03-31 13F QUANTA SVCS COM 74762E102 39,960 53 0.13 10,382 20.56 0.0718
2024-01-24 2023-12-31 13F QUANTA SVCS COM 74762E102 39,907 300 0.76 8,612 16.22 0.0654
2023-11-07 2023-09-30 13F QUANTA SVCS COM 74762E102 39,607 -8 -0.02 7,409 -4.79 0.0629
2023-08-01 2023-06-30 13F QUANTA SVCS COM 74762E102 39,615 -1,930 -4.65 7,782 12.41 0.0632
2023-04-27 2023-03-31 13F QUANTA SERVICES COM 74762E102 41,545 1,062 2.62 6,923 20.02 0.0621
2023-02-08 2022-12-31 13F QUANTA SERVICES COM 74762E102 40,483 1,025 2.60 5,769 14.74 0.0557
2022-11-07 2022-09-30 13F QUANTA SVCS COM 74762E102 39,458 -667 -1.66 5,027 -0.04 0.0520
2022-07-28 2022-06-30 13F QUANTA SVCS COM 74762E102 40,125 1,605 4.17 5,029 -0.81 0.0488
2022-05-04 2022-03-31 13F QUANTA SVCS COM 74762E102 38,520 1,068 2.85 5,070 18.07 0.0408
2022-02-04 2021-12-31 13F QUANTA SVCS COM 74762E102 37,452 -505 -1.33 4,294 -0.60 0.0327
2021-11-12 2021-09-30 13F QUANTA SERVICES COM 74762E102 37,957 211 0.56 4,320 26.35 0.0353
2021-08-02 2021-06-30 13F QUANTA SERVICES COM 74762E102 37,746 -2,677 -6.62 3,419 -3.85 0.0278
2021-05-06 2021-03-31 13F QUANTA SERVICES COM 74762E102 40,423 397 0.99 3,556 23.34 0.0311
2021-01-28 2020-12-31 13F QUANTA SERVICES COM 74762E102 40,026 -1,506 -3.63 2,883 31.34 0.0261
2020-11-05 2020-09-30 13F QUANTA SERVICES COM 74762E102 41,532 9,367 29.12 2,195 73.93 0.0218
2020-08-04 2020-06-30 13F QUANTA SERVICES COM 74762E102 32,165 -1,241 -3.71 1,262 19.06 0.0178
2020-05-05 2020-03-31 13F QUANTA SERVICES COM 74762E102 33,406 6,687 25.03 1,060 -2.57 0.0182
2020-01-27 2019-12-31 13F QUANTA SERVICES COM 74762E102 26,719 170 0.64 1,088 8.37 0.0131
2019-10-31 2019-09-30 13F QUANTA SERVICES COM 74762E102 26,549 -474 -1.75 1,004 -2.71 0.0123
2019-07-25 2019-06-30 13F QUANTA SERVICES COM 74762E102 27,023 -120 -0.44 1,032 0.78 0.0119
2019-04-29 2019-03-31 13F QUANTA SERVICES COM 74762E102 27,143 -2,861 -9.54 1,024 13.40 0.0122
2019-01-28 2018-12-31 13F QUANTA SERVICES COM 74762E102 30,004 -6,744 -18.35 903 -26.41 0.0116
2018-10-29 2018-09-30 13F QUANTA SERVICES COM 74762E102 36,748 0 0.00 1,227 0.00 0.0116
2018-08-07 2018-06-30 13F QUANTA SERVICES COM 74762E102 36,748 -1,354 -3.55 1,227 -6.26 0.0123
2018-05-14 2018-03-31 13F QUANTA SERVICES COM 74762E102 38,102 -1,100 -2.81 1,309 -14.61 0.0132
2018-02-09 2017-12-31 13F QUANTA SERVICES COM 74762E102 39,202 1,702 4.54 1,533 9.42 0.0149
2017-11-14 2017-09-30 13F QUANTA SERVICES COM 74762E102 37,500 800 2.18 1,401 15.98 0.0167
2017-08-02 2017-06-30 13F QUANTA SERVICES COM 74762E102 36,700 -700 -1.87 1,208 -12.97 0.0167
2017-05-10 2017-03-31 13F QUANTA SERVICES COM 74762E102 37,400 0 0.00 1,388 6.52 0.0195
2017-02-10 2016-12-31 13F QUANTA SERVICES COM 74762E102 37,400 200 0.54 1,303 25.17 0.0192
2016-11-01 2016-09-30 13F QUANTA SERVICES COM 74762E102 37,200 200 0.54 1,041 21.75 0.0158
2016-08-15 2016-06-30 13F QUANTA SERVICES COM 74762E102 37,000 -6,300 -14.55 855 -12.49 0.0120
2016-05-16 2016-03-31 13F QUANTA SERVICES COM 74762E102 43,300 1,000 2.36 977 14.00 0.0127
2016-02-12 2015-12-31 13F QUANTA SERVICES COM 74762E102 42,300 -13,600 -24.33 857 -36.66 0.0114
2015-11-20 2015-09-30 13F QUANTA SERVICES COM 74762E102 55,900 -5,000 -8.21 1,353 -21.70 0.0190
2015-02-11 2014-12-31 13F QUANTA SERVICES COM 74762E102 60,900 600 1.00 1,728 -21.02 0.0204
2014-11-21 2014-09-30 13F QUANTA SERVICES COM 74762E102 60,300 -1,800 -2.90 2,188 1.91 0.0271
2014-08-07 2014-06-30 13F QUANTA SERVICES COM 74762E102 62,100 1,900 3.16 2,147 -3.33 0.0260
2014-05-19 2014-03-31 13F QUANTA SERVICES COM 74762E102 60,200 -1,500 -2.43 2,221 14.07 0.0281
2014-02-05 2013-12-31 13F QUANTA SERVICES COM 74762E102 61,700 -1,100 -1.75 1,947 12.74 0.0240
2013-11-01 2013-09-30 13F QUANTA SERVICES COM 74762E102 62,800 1,300 2.11 1,727 6.15 0.0221
2013-09-17 2013-06-30 13F QUANTA SERVICES COM 74762E102 61,500 -1,900 -3.00 1,627 -10.16 0.0222
2013-09-17 2013-03-31 13F QUANTA SERVICES COM 74762E102 63,400 63,400 1,811 0.0259
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.