Quanta Services, Inc.
MX ˙ BMV ˙ US74762E1029
SecurityMX:PWR / Quanta Services, Inc.
InstitutionComerica Bank
Latest Disclosed Ownership32,501 shares
Latest Disclosed Value $ 13,717,335
Comerica Bank reports 34.02% decrease in ownership of PWR / Quanta Services, Inc.

On January 29, 2026 - Comerica Bank filed a 13F-HR form disclosing ownership of 32,501 shares of Quanta Services, Inc. (MX:PWR) valued at $13,717,335 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 49,259 shares of Quanta Services, Inc.. This represents a change in shares of -34.02% 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)
2026-01-29 2025-12-31 13F QUANTA SVCS COM 74762E102 32,501 -16,758 -34.02 13,717 -32.80 0.0547
2025-11-14 2025-09-30 13F QUANTA SVCS COM 74762E102 49,259 -1,376 -2.72 20,414 6.63 0.0768
2025-08-14 2025-06-30 13F QUANTA SVCS COM 74762E102 50,635 14,983 42.03 19,144 111.26 0.0743
2025-05-14 2025-03-31 13F QUANTA SVCS COM 74762E102 35,652 -2,180 -5.76 9,062 -24.21 0.0381
2025-02-14 2024-12-31 13F/A-1 QUANTA SVCS COM 74762E102 37,832 1,451 3.99 11,957 10.22 0.0482
2025-02-14 2024-12-31 13F QUANTA SVCS COM 74762E102 37,832 1,451 11,957 0.0400
2024-11-14 2024-09-30 13F QUANTA SVCS COM 74762E102 36,381 -493 -1.34 10,847 15.78 0.0429
2024-08-15 2024-06-30 13F QUANTA SVCS COMMON 74762E102 36,874 -47 -0.13 9,369 -2.32 0.0390
2024-05-16 2024-03-31 13F QUANTA SVCS COMMON 74762E102 36,921 -379 -1.02 9,592 19.17 0.0413
2024-02-14 2023-12-31 13F QUANTA SVCS COMMON 74762E102 37,300 -5,572 -13.00 8,049 0.36 0.0371
2023-11-21 2023-09-30 13F QUANTA SVCS COMMON 74762E102 42,872 42,872 8,020 0.0418
2023-08-22 2023-06-30 13F QUANTA SVCS COM 74762E102 0 -23,876 -100.00 0 -100.00
2023-01-26 2022-12-31 13F QUANTA SVCS COM 74762E102 23,876 6,063 34.04 4 -99.88 0.0275
2022-10-28 2022-09-30 13F QUANTA SVCS COM 74762E102 17,813 148 0.84 2,448 5.70 0.0206
2022-08-02 2022-06-30 13F QUANTA SVCS COM 74762E102 17,665 167 0.95 2,316 -3.98 0.0190
2022-04-27 2022-03-31 13F QUANTA SVCS COM 74762E102 17,498 -779 -4.26 2,412 36.04 0.0175
2022-02-18 2021-12-31 13F QUANTA SVCS COM 74762E102 18,277 56 0.31 1,773 -17.57 0.0130
2021-11-22 2021-09-30 13F QUANTA SVCS COM 74762E102 18,221 -14,099 -43.62 2,151 -30.57 0.0130
2021-08-26 2021-06-30 13F QUANTA SVCS COM 74762E102 32,320 -897 -2.70 3,098 -4.47 0.0185
2021-04-28 2021-03-31 13F QUANTA SVCS COM 74762E102 33,217 -10,602 -24.19 3,243 -4.70 0.0193
2021-01-28 2020-12-31 13F QUANTA SVCS COM 74762E102 43,819 -1,893 -4.14 3,403 19.57 0.0216
2020-10-30 2020-09-30 13F QUANTA SVCS COM 74762E102 45,712 -68,547 -59.99 2,846 -39.12 0.0207
2020-07-31 2020-06-30 13F QUANTA SVCS COM 74762E102 114,259 2,204 1.97 4,675 22.77 0.0360
2020-05-01 2020-03-31 13F QUANTA SVCS COM 74762E102 112,055 7,204 6.87 3,808 -9.07 0.0349
2020-02-07 2019-12-31 13F QUANTA SVCS COM 74762E102 104,851 -11,095 -9.57 4,188 -12.33 0.0317
2019-10-31 2019-09-30 13F QUANTA SVCS COM 74762E102 115,946 1,186 1.03 4,777 9.79 0.0378
2019-08-02 2019-06-30 13F QUANTA SVCS COM 74762E102 114,760 -17,391 -13.16 4,351 -16.26 0.0348
2019-05-02 2019-03-31 13F QUANTA SVCS COM 74762E102 132,151 952 0.73 5,196 13.47 0.0421
2019-02-06 2018-12-31 13F QUANTA SVCS COM 74762E102 131,199 -3,733 -2.77 4,579 7.87 0.0389
2018-11-01 2018-09-30 13F QUANTA SVCS COM 74762E102 134,932 -6,755 -4.77 4,245 -9.74 0.0342
2018-08-01 2018-06-30 13F QUANTA SVCS COM 74762E102 141,687 -825 -0.58 4,703 -3.73 0.0329
2018-05-01 2018-03-31 13F QUANTA SVCS COM 74762E102 142,512 10,555 8.00 4,885 -5.00 0.0349
2018-02-02 2017-12-31 13F QUANTA SVCS COM 74762E102 131,957 2,781 2.15 5,142 4.60 0.0343
2017-11-06 2017-09-30 13F QUANTA SVCS COM 74762E102 129,176 -9,639 -6.94 4,916 5.36 0.0356
2017-08-03 2017-06-30 13F QUANTA SVCS COM 74762E102 138,815 -133 -0.10 4,666 -7.05 0.0349
2017-05-03 2017-03-31 13F QUANTA SVCS COM 74762E102 138,948 4,864 3.63 5,020 7.31 0.0381
2017-02-08 2016-12-31 13F QUANTA SVCS COM 74762E102 134,084 98,497 276.78 4,678 430.39 0.0370
2016-08-11 2016-06-30 13F QUANTA SVCS COM 74762E102 35,587 -2,320 -6.12 882 2.92 0.0076
2016-05-11 2016-03-31 13F QUANTA SVCS COM 74762E102 37,907 -12,572 -24.91 857 -9.22 0.0077
2016-02-05 2015-12-31 13F QUANTA SVCS COM 74762E102 50,479 -13,586 -21.21 944 -39.14 0.0093
2015-11-12 2015-09-30 13F QUANTA SVCS COM 74762E102 64,065 -73,991 -53.59 1,551 -61.03 0.0147
2015-08-13 2015-06-30 13F QUANTA SVCS COM 74762E102 138,056 70,946 105.72 3,980 107.83 0.0171
2015-05-15 2015-03-31 13F QUANTA SVCS COM 74762E102 67,110 -61,652 -47.88 1,915 -47.62 0.0162
2015-02-13 2014-12-31 13F QUANTA SVCS COM 74762E102 128,762 61,285 90.82 3,656 49.29 0.0158
2014-10-21 2014-09-30 13F QUANTA SVCS COM 74762E102 67,477 -3,414 -4.82 2,449 -0.08 0.0216
2014-08-12 2014-06-30 13F QUANTA SVCS COM 74762E102 70,891 -12,088 -14.57 2,451 -19.95 0.0208
2014-05-15 2014-03-31 13F QUANTA SVCS COM 74762E102 82,979 1,623 1.99 3,062 19.24 0.0235
2014-02-11 2013-12-31 13F QUANTA SVCS COM 74762E102 81,356 -3,460 -4.08 2,568 10.03 0.0199
2013-11-12 2013-09-30 13F QUANTA SVCS COM 74762E102 84,816 -4,161 -4.68 2,334 -0.85 0.0162
2013-08-13 2013-06-30 13F/A-1 QUANTA SVCS COM 74762E102 88,977 88,977 2,354 0.0192
2013-08-08 2013-06-30 13F QUANTA SVCS COM 74762E102 521,562 13,800
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.