Quanta Services, Inc.
MX ˙ BMV ˙ US74762E1029
SecurityMX:PWR / Quanta Services, Inc.
InstitutionState Street Corp
Latest Disclosed Ownership6,284,914 shares
Latest Disclosed Value $ 3,450,543,484
State Street Corp reports 1.26% increase in ownership of PWR / Quanta Services, Inc.

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 6,284,914 shares of Quanta Services, Inc. (MX:PWR) valued at $3,450,543,484 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 6,206,761 shares of Quanta Services, Inc.. This represents a change in shares of 1.26% 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)
2026-05-15 2026-03-31 13F QUANTA SVCS COM 74762E102 6,284,914 78,153 1.26 3,450,543 31.72 0.1191
2026-02-13 2025-12-31 13F QUANTA SVCS COM 74762E102 6,206,761 126,014 2.07 2,619,626 3.95 0.0879
2025-11-14 2025-09-30 13F QUANTA SVCS COM 74762E102 6,080,747 73,460 1.22 2,519,983 10.95 0.0874
2025-08-14 2025-06-30 13F QUANTA SVCS COM 74762E102 6,007,287 24,669 0.41 2,271,235 49.36 0.0851
2025-05-15 2025-03-31 13F QUANTA SVCS COM 74762E102 5,982,618 3,375 0.06 1,520,662 -19.54 0.0627
2025-02-14 2024-12-31 13F QUANTA SVCS COM 74762E102 5,979,243 230,606 4.01 1,890,002 10.27 0.0746
2024-11-14 2024-09-30 13F QUANTA SVCS COM 74762E102 5,748,637 89,975 1.59 1,713,956 19.21 0.0697
2024-08-14 2024-06-30 13F QUANTA SVCS COM 74762E102 5,658,662 -16,345 -0.29 1,437,809 -2.48 0.0628
2024-05-15 2024-03-31 13F QUANTA SVCS COM 74762E102 5,675,007 103,358 1.86 1,474,367 22.57 0.0659
2024-02-14 2023-12-31 13F QUANTA SVCS COM 74762E102 5,571,649 -16,618 -0.30 1,202,860 15.01 0.0585
2023-11-14 2023-09-30 13F QUANTA SVCS COM 74762E102 5,588,267 -63,480 -1.12 1,045,839 -5.84 0.0580
2023-08-14 2023-06-30 13F QUANTA SVCS COM 74762E102 5,651,747 252,669 4.68 1,110,733 23.46 0.0583
2023-05-15 2023-03-31 13F QUANTA SVCS COM 74762E102 5,399,078 -15,516 -0.29 899,702 16.54 0.0508
2023-05-15 2022-12-31 13F/A-99 QUANTA SVCS COM 74762E102 5,414,594 -7,297 -0.13 772,009 11.71 0.0454
2023-05-15 2022-12-31 13F QUANTA SVCS COM 74762E102 5,414,594 -7,297 772,009 0.0454
2022-11-15 2022-09-30 13F QUANTA SVCS COM 74762E102 5,421,891 45,137 0.84 691,070 2.49 0.0437
2022-08-15 2022-06-30 13F QUANTA SVCS COM 74762E102 5,376,754 618,725 13.00 674,294 7.68 0.0404
2022-05-16 2022-03-31 13F QUANTA SVCS COM 74762E102 4,758,029 20,702 0.44 626,204 15.28 0.0310
2022-02-14 2021-12-31 13F QUANTA SVCS COM 74762E102 4,737,327 119,064 2.58 543,182 3.28 0.0258
2021-11-15 2021-09-30 13F QUANTA SVCS COM 74762E102 4,618,263 -6,935 -0.15 525,927 25.47 0.0278
2021-08-16 2021-06-30 13F QUANTA SVCS COM 74762E102 4,625,198 58,834 1.29 419,180 4.34 0.0221
2021-07-09 2021-03-31 13F/A-1 QUANTA SVCS COM 74762E102 4,566,364 2,788 0.06 401,749 22.13 0.0230
2021-05-17 2021-03-31 13F QUANTA SVCS COM 74762E102 4,566,364 2,788 401,749 0.0230
2021-02-16 2020-12-31 13F QUANTA SVCS COM 74762E102 4,563,576 -33,444 -0.73 328,941 35.24 0.0201
2020-11-10 2020-09-30 13F QUANTA SVCS COM 74762E102 4,597,020 10,546 0.23 243,228 35.01 0.0166
2020-08-14 2020-06-30 13F QUANTA SVCS COM 74762E102 4,586,474 1,032 0.02 180,155 23.82 0.0131
2020-06-19 2020-03-31 13F/A-1 QUANTA SVCS COM 74762E102 4,585,442 -101,237 -2.16 145,496 -23.84 0.0127
2020-05-11 2020-03-31 13F QUANTA SVCS COM 74762E102 4,585,442 -101,237 145,496 12,777.4784
2020-02-06 2019-12-31 13F QUANTA SVCS COM 74762E102 4,686,679 122,572 2.69 191,028 10.61 0.0131
2019-11-14 2019-09-30 13F QUANTA SVCS COM 74762E102 4,564,107 -172,353 -3.64 172,705 -4.62 0.0129
2019-08-14 2019-06-30 13F QUANTA SVCS COM 74762E102 4,736,460 -85,510 -1.77 181,075 -0.50 0.0135
2019-05-15 2019-03-31 13F QUANTA SVCS COM 74762E102 4,821,970 88,701 1.87 181,981 27.56 0.0142
2019-02-12 2018-12-31 13F QUANTA SVCS COM 74762E102 4,733,269 -198,162 -4.02 142,663 -13.33 0.0130
2018-11-09 2018-09-30 13F QUANTA SERVICES Common equity shares 74762E102 4,931,431 -40,664 -0.82 164,610 -0.88 0.0126
2018-08-14 2018-06-30 13F QUANTA SERVICES Common equity shares 74762E102 4,972,095 -151,904 -2.96 166,071 -5.65 0.0139
2018-05-15 2018-03-31 13F QUANTA SERVICES Common equity shares 74762E102 5,123,999 -71,039 -1.37 176,010 -13.37 0.0149
2018-02-14 2017-12-31 13F QUANTA SERVICES Common equity shares 74762E102 5,195,038 10,022 0.19 203,175 4.86 0.0163
2017-11-14 2017-09-30 13F QUANTA SERVICES Common equity shares 74762E102 5,185,016 -168,367 -3.15 193,756 9.94 0.0167
2017-08-14 2017-06-30 13F QUANTA SERVICES Common equity shares 74762E102 5,353,383 -216,573 -3.89 176,230 -14.74 0.0156
2017-05-15 2017-03-31 13F QUANTA SERVICES Common equity shares 74762E102 5,569,956 -196 -0.00 206,698 6.48 0.0184
2017-02-09 2016-12-31 13F QUANTA SERVICES Common equity shares 74762E102 5,570,152 322,011 6.14 194,119 32.15 0.0183
2017-01-13 2016-09-30 13F/A-1 QUANTA SERVICES Common equity shares 74762E102 5,248,141 1,733 0.03 146,894 21.10 0.0148
2016-11-14 2016-09-30 13F QUANTA SERVICES Common equity shares 74762E102 3,662,259 102,505
2016-08-12 2016-06-30 13F QUANTA SERVICES Common equity shares 74762E102 5,246,408 -1,532,824 -22.61 121,303 -20.69 0.0130
2016-05-20 2016-03-31 13F/A-1 QUANTA SERVICES Common equity shares 74762E102 6,779,232 -55,507 -0.81 152,948 10.51 0.0165
2016-05-12 2016-03-31 13F QUANTA SERVICES Common equity shares 74762E102 6,779,232 152,948
2016-02-16 2015-12-31 13F QUANTA SERVICES Common equity shares 74762E102 6,834,739 -1,210,290 -15.04 138,396 -28.94 0.0151
2015-11-16 2015-09-30 13F QUANTA SERVICES Common equity shares 00748E106 8,045,029 162,222 2.06 194,768 -14.27 0.0227
2015-08-13 2015-06-30 13F QUANTA SERVICES Common equity shares 00748E106 7,882,807 -558,874 -6.62 227,181 -5.67 0.0243
2015-05-15 2015-03-31 13F QUANTA SERVICES Common equity shares 74762E102 8,441,681 -918,591 -9.81 240,842 -9.37 0.0247
2015-02-11 2014-12-31 13F QUANTA SERVICES Common equity shares 74762E102 9,360,272 882,998 10.42 265,739 -13.62 0.0265
2014-11-12 2014-09-30 13F/A-1 QUANTA SERVICES Common equity shares 74762E102 8,477,274 -84,972 -0.99 307,639 3.90 0.0331
2014-11-10 2014-09-30 13F QUANTA SERVICES Common equity shares 74762E102 8,477,274 307,639
2014-08-12 2014-06-30 13F QUANTA SERVICES Common equity shares 74762E102 8,562,246 178,607 2.13 296,079 -4.29 0.0320
2014-05-15 2014-03-31 13F/A-1 QUANTA SERVICES Common equity shares 74762E102 8,383,639 -430,142 -4.88 309,354 11.21 0.0352
2014-05-13 2014-03-31 13F QUANTA SERVICES Common equity shares 74762E102 8,383,639 309,354
2014-02-06 2013-12-31 13F/A-1 QUANTA SERVICES Common equity shares 74762E102 8,813,781 281,668 3.30 278,163 18.50 0.0309
2014-02-06 2013-12-31 13F QUANTA SERVICES Common equity shares 74762E102 8,042,188 219,468
2013-11-12 2013-09-30 13F QUANTA SERVICES Common equity shares 74762E102 8,532,113 82,112 0.97 234,734 4.98 0.0289
2013-08-08 2013-06-30 13F QUANTA SERVICES Common equity shares 74762E102 8,450,001 8,450,001 223,589 0.0292
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.