Quanta Services, Inc.
US ˙ NYSE ˙ US74762E1029

SecurityPWR / Quanta Services, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership2,146,470 shares
Latest Disclosed Value $ 1,178,456,274
Morgan Stanley reports 7.05% increase in ownership of PWR / Quanta Services, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 2,146,470 shares of Quanta Services, Inc. (US:PWR) valued at $1,178,454,959 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 2,005,203 shares of Quanta Services, Inc.. This represents a change in shares of 7.05% during the quarter. The current value of the position is $1,536,164,185 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)
2026-05-15 2026-03-31 13F QUANTA SVCS COM 74762E102 2,146,470 141,267 7.05 1,178,456 39.25 0.0710
2026-05-27 2025-12-31 13F/A-1 QUANTA SVCS COM 74762E102 2,005,203 -25,129 -1.24 846,318 0.58 0.0505
2026-02-13 2025-12-31 13F QUANTA SVCS COM 74762E102 2,005,203 -25,129 846,318 0.0505
2026-05-27 2025-09-30 13F/A-1 QUANTA SVCS COM 74762E102 2,030,332 148,089 7.87 841,411 18.24 0.0509
2025-11-14 2025-09-30 13F QUANTA SVCS COM 74762E102 2,030,332 148,089 841,411 0.0509
2025-08-15 2025-06-30 13F QUANTA SVCS COM 74762E102 1,882,243 155,219 8.99 711,639 62.11 0.0464
2025-05-15 2025-03-31 13F QUANTA SVCS COM 74762E102 1,727,024 533 0.03 438,975 -19.55 0.0314
2025-05-15 2024-12-31 13F/A-1 QUANTA SVCS COM 74762E102 1,726,491 120,383 7.50 545,659 13.95 0.0382
2025-02-14 2024-12-31 13F QUANTA SVCS COM 74762E102 1,726,491 120,383 545,659 0.0382
2025-05-14 2024-09-30 13F/A-2 QUANTA SVCS COM 74762E102 1,606,108 111,319 7.45 478,862 26.08 0.0347
2025-02-14 2024-09-30 13F/A-1 QUANTA SVCS COM 74762E102 1,606,108 111,319 478,862 0.0347
2024-11-14 2024-09-30 13F QUANTA SVCS COM 74762E102 1,606,108 111,319 478,862 0.0347
2025-05-14 2024-06-30 13F/A-2 QUANTA SVCS COM 74762E102 1,494,789 -136,579 -8.37 379,812 -10.39 0.0294
2024-10-17 2024-06-30 13F/A-1 QUANTA SVCS COM 74762E102 1,494,789 -136,579 379,812 0.0294
2024-08-14 2024-06-30 13F QUANTA SVCS COM 74762E102 1,494,789 -136,579 379,812 0.0294
2024-10-17 2024-03-31 13F/A-2 QUANTA SVCS COM 74762E102 1,631,368 188,066 13.03 423,830 36.08 0.0340
2024-08-16 2024-03-31 13F/A-1 QUANTA SVCS COM 74762E102 1,631,368 188,066 423,830 0.0340
2024-05-15 2024-03-31 13F QUANTA SVCS COM 74762E102 1,631,368 188,066 423,830 0.0340
2024-08-16 2023-12-31 13F/A-1 QUANTA SVCS COM 74762E102 1,443,302 -96,685 -6.28 311,465 8.12 0.0274
2024-02-13 2023-12-31 13F QUANTA SVCS COM 74762E102 1,443,302 -96,685 311,465 0.0274
2023-11-15 2023-09-30 13F QUANTA SVCS COM 74762E102 1,539,987 49,602 3.33 288,086 -1.61 0.0293
2023-08-14 2023-06-30 13F QUANTA SVCS COM 74762E102 1,490,385 -69,795 -4.47 292,787 12.62 0.0289
2023-05-15 2023-03-31 13F QUANTA SVCS COM 74762E102 1,560,180 -19,421 -1.23 259,989 15.50 0.0279
2023-02-14 2022-12-31 13F QUANTA SVCS COM 74762E102 1,579,601 288,876 22.38 225,093 36.90 0.0256
2022-11-14 2022-09-30 13F QUANTA SVCS COM 74762E102 1,290,725 -42,524 -3.19 164,425 -1.61 0.0224
2022-10-27 2022-06-30 13F/A-1 QUANTA SVCS COM 74762E102 1,333,249 639,308 92.13 167,109 82.98 0.0217
2022-08-15 2022-06-30 13F QUANTA SVCS COM 74762E102 1,333,249 639,308 167,109 0.0044
2022-10-27 2022-03-31 13F/A-1 QUANTA SVCS COM 74762E102 693,941 29,791 4.49 91,328 19.93 0.0123
2022-05-13 2022-03-31 13F QUANTA SVCS COM 74762E102 693,941 29,791 91,328 0.0123
2022-02-14 2021-12-31 13F QUANTA SVCS COM 74762E102 664,150 -83,710 -11.19 76,151 -10.54 0.0094
2021-11-15 2021-09-30 13F QUANTA SVCS COM 74762E102 747,860 -6,767 -0.90 85,121 24.54 0.0115
2021-08-23 2021-06-30 13F/A-1 QUANTA SVCS COM 74762E102 754,627 407,330 117.29 68,346 123.68 0.0090
2021-08-16 2021-06-30 13F QUANTA SVCS COM 74762E102 754,627 407,330 68,346 0.0019
2021-05-17 2021-03-31 13F QUANTA SVCS COM 74762E102 347,297 -143,061 -29.17 30,555 -13.48 0.0045
2021-02-16 2020-12-31 13F QUANTA SVCS COM 74762E102 490,358 174,679 55.33 35,316 111.64 0.0055
2020-11-13 2020-09-30 13F QUANTA SVCS COM 74762E102 315,679 116,643 58.60 16,687 113.72 0.0032
2020-08-14 2020-06-30 13F QUANTA SVCS COM 74762E102 199,036 -34,174 -14.65 7,808 5.51 0.0017
2020-05-26 2020-03-31 13F/A-1 QUANTA SVCS COM 74762E102 233,210 -1,083,384 -82.29 7,400 -86.19 0.0020
2020-05-15 2020-03-31 13F QUANTA SVCS COM 74762E102 233,210 -1,083,384 7,400 568.4743
2020-02-14 2019-12-31 13F QUANTA SVCS COM 74762E102 1,316,594 1,142,208 654.99 53,599 713.09 0.0125
2019-11-14 2019-09-30 13F QUANTA SVCS COM 74762E102 174,386 50,883 41.20 6,592 39.75 0.0017
2019-08-14 2019-06-30 13F QUANTA SVCS COM 74762E102 123,503 2,002 1.65 4,717 2.86 0.0013
2019-05-15 2019-03-31 13F QUANTA SVCS COM 74762E102 121,501 -86,339 -41.54 4,586 -26.69 0.0013
2019-02-14 2018-12-31 13F QUANTA SVCS COM 74762E102 207,840 -154,040 -42.57 6,256 -48.21 0.0019
2019-04-23 2018-09-30 13F/A-2 QUANTA SVCS COM 74762E102 361,880 104,914 40.83 12,080 40.74 0.0030
2018-11-20 2018-09-30 13F/A-1 QUANTA SVCS COM 74762E102 361,880 0 12,080 0.0030
2018-11-14 2018-09-30 13F QUANTA SVCS COM 74762E102 361,880 104,914 12,080
2019-04-23 2018-06-30 13F/A-1 QUANTA SVCS COM 74762E102 256,966 -412,974 -61.64 8,583 -62.70 0.0023
2018-08-14 2018-06-30 13F QUANTA SVCS COM 74762E102 256,966 -412,974 8,583
2019-04-23 2018-03-31 13F/A-1 QUANTA SVCS COM 74762E102 669,940 411,268 158.99 23,013 127.47 0.0064
2018-05-14 2018-03-31 13F QUANTA SVCS COM 74762E102 669,940 411,268 23,013
2019-04-23 2017-12-31 13F/A-1 QUANTA SVCS COM 74762E102 258,672 -30,750 -10.62 10,117 -6.46 0.0028
2018-02-14 2017-12-31 13F QUANTA SVCS COM 74762E102 258,672 -30,750 10,117
2017-11-14 2017-09-30 13F QUANTA SVCS COM 74762E102 289,422 -1,090,820 -79.03 10,816 -76.20 0.0032
2017-08-11 2017-06-30 13F QUANTA SVCS COM 74762E102 1,380,242 567,410 69.81 45,437 50.63 0.0137
2017-05-22 2017-03-31 13F/A-1 QUANTA SVCS COM 74762E102 812,832 577,842 245.90 30,164 268.35 0.0093
2017-05-12 2017-03-31 13F QUANTA SVCS COM 74762E102 812,832 30,164
2017-02-22 2016-12-31 13F/A-1 QUANTA SVCS COM 74762E102 234,990 158,706 208.05 8,189 283.38 0.0027
2017-02-13 2016-12-31 13F QUANTA SVCS COM 74762E102 234,990 8,189
2016-11-10 2016-09-30 13F QUANTA SVCS COM 74762E102 76,284 -593,303 -88.61 2,136 -86.20 0.0007
2016-08-12 2016-06-30 13F QUANTA SVCS COM 74762E102 669,587 284,987 74.10 15,480 78.42 0.0056
2016-05-12 2016-03-31 13F QUANTA SVCS COM 74762E102 384,600 -51,650 -11.84 8,676 -1.79 0.0033
2016-02-09 2015-12-31 13F QUANTA SVCS COM 74762E102 436,250 10,312 2.42 8,834 -14.33 0.0032
2016-02-08 2015-09-30 13F/A-1 QUANTA SVCS COM 74762E102 425,938 24,632 6.14 10,312 -10.84 0.0038
2015-11-09 2015-09-30 13F QUANTA SVCS COM 74762E102 425,938 10,312
2015-08-12 2015-06-30 13F QUANTA SVCS COM 74762E102 401,306 -703,561 -63.68 11,566 -63.31 0.0040
2015-05-14 2015-03-31 13F QUANTA SVCS COM 74762E102 1,104,867 -503,757 -31.32 31,521 -30.98 0.0116
2015-02-13 2014-12-31 13F QUANTA SVCS COM 74762E102 1,608,624 1,048,003 186.94 45,668 124.48 0.0167
2014-12-16 2014-09-30 13F/A-1 QUANTA SVCS COM 74762E102 560,621 -177,078 -24.00 20,344 -25.26 0.0078
2014-11-14 2014-09-30 13F QUANTA SVCS COM 74762E102 560,621 20,344
2014-05-13 2014-03-31 13F QUANTA SVCS COM 74762E102 737,699 220,645 42.67 27,220 66.82 0.0114
2014-02-13 2013-12-31 13F QUANTA SVCS COM 74762E102 517,054 52,034 11.19 16,317 27.54 0.0069
2013-11-13 2013-09-30 13F QUANTA SVCS INC COM ST COM 74762E102 465,020 -807,854 -63.47 12,794 -62.01 0.0060
2013-08-08 2013-06-30 13F QUANTA SVCS INC COM ST COM 74762E102 1,272,874 1,272,874 33,681 0.0170
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.