Quanta Services, Inc.
MX ˙ BMV ˙ US74762E1029
SecurityMX:PWR / Quanta Services, Inc.
InstitutionDuncker Streett & Co Inc
Latest Disclosed Ownership10,392 shares
Latest Disclosed Value $ 5,705,417
Duncker Streett & Co Inc reports 35.13% decrease in ownership of PWR / Quanta Services, Inc.

On April 29, 2026 - Duncker Streett & Co Inc filed a 13F-HR form disclosing ownership of 10,392 shares of Quanta Services, Inc. (MX:PWR) valued at $5,705,417 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 16,019 shares of Quanta Services, Inc.. This represents a change in shares of -35.13% 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)
2026-04-29 2026-03-31 13F QUANTA SVCS COM 74762E102 10,392 -5,627 -35.13 5,705 -15.61 1.0844
2026-01-27 2025-12-31 13F QUANTA SVCS COM 74762E102 16,019 155 0.98 6,761 2.83 1.2015
2025-10-23 2025-09-30 13F QUANTA SVCS COM 74762E102 15,864 275 1.76 6,574 11.56 1.1454
2025-07-28 2025-06-30 13F QUANTA SVCS COM 74762E102 15,589 6,840 78.18 5,894 165.09 1.0756
2025-04-22 2025-03-31 13F QUANTA SVCS COM 74762E102 8,749 8,706 20,246.51 2,224 17,000.00 0.4406
2025-02-05 2024-12-31 13F QUANTA SVCS COM 74762E102 43 43 14 0.0025
2022-05-09 2022-03-31 13F QUANTA SVCS COM 74762E102 0 -314 -100.00 0 -100.00
2022-02-08 2021-12-31 13F QUANTA SVCS COM 74762E102 314 0 0.00 36 0.00 0.0062
2021-11-03 2021-09-30 13F QUANTA SVCS COM 74762E102 314 1 0.32 36 28.57 0.0068
2021-07-27 2021-06-30 13F QUANTA SVCS COM 74762E102 313 -700 -69.10 28 -68.54 0.0052
2021-04-28 2021-03-31 13F QUANTA SVCS COM 74762E102 1,013 0 0.00 89 21.92 0.0170
2021-02-02 2020-12-31 13F QUANTA SVCS COM 74762E102 1,013 313 44.71 73 97.30 0.0141
2020-10-28 2020-09-30 13F QUANTA SVCS COM 74762E102 700 0 0.00 37 37.04 0.0081
2020-07-22 2020-06-30 13F QUANTA SVCS COM 74762E102 700 0 0.00 27 22.73 0.0064
2020-04-27 2020-03-31 13F QUANTA SVCS COM 74762E102 700 0 0.00 22 -21.43 0.0059
2020-01-27 2019-12-31 13F QUANTA SVCS COM 74762E102 700 700 28 0.0059
2019-10-31 2019-09-30 13F QUANTA SVCS COM 74762E102 0 -700 -100.00 0 -100.00
2019-07-24 2019-06-30 13F QUANTA SVCS COM 74762E102 700 0 0.00 27 3.85 0.0061
2019-04-29 2019-03-31 13F QUANTA SVCS COM 74762E102 700 -300 -30.00 26 -13.33 0.0060
2019-01-24 2018-12-31 13F QUANTA SVCS COM 74762E102 1,000 -18,000 -94.74 30 -95.27 0.0080
2018-10-22 2018-09-30 13F QUANTA SVCS COM 74762E102 19,000 18,000 1,800.00 634 1,821.21 0.1440
2018-07-23 2018-06-30 13F QUANTA SVCS COM 74762E102 1,000 0 0.00 33 -2.94 0.0082
2018-04-26 2018-03-31 13F QUANTA SVCS COM 74762E102 1,000 0 0.00 34 -12.82 0.0086
2018-01-23 2017-12-31 13F QUANTA SVCS COM 74762E102 1,000 0 0.00 39 5.41 0.0100
2017-10-25 2017-09-30 13F QUANTA SVCS COM 74762E102 1,000 0 0.00 37 12.12 0.0112
2017-07-21 2017-06-30 13F QUANTA SVCS COM 74762E102 1,000 -800 -44.44 33 -50.75 0.0103
2017-04-25 2017-03-31 13F QUANTA SVCS COM 74762E102 1,800 -1,600 -47.06 67 -43.22 0.0210
2017-01-26 2016-12-31 13F QUANTA SVCS COM 74762E102 3,400 0 0.00 118 24.21 0.0392
2016-10-20 2016-09-30 13F QUANTA SVCS COM 74762E102 3,400 -1,100 -24.44 95 -8.65 0.0329
2016-07-20 2016-06-30 13F QUANTA SVCS COM 74762E102 4,500 0 0.00 104 1.96 0.0370
2016-04-25 2016-03-31 13F QUANTA SVCS COM 74762E102 4,500 -1,500 -25.00 102 -16.39 0.0378
2016-01-20 2015-12-31 13F QUANTA SVCS COM 74762E102 6,000 -3,200 -34.78 122 -45.29 0.0457
2015-10-27 2015-09-30 13F QUANTA SVCS COM 74762E102 9,200 -7,250 -44.07 223 -52.95 0.0867
2015-07-20 2015-06-30 13F QUANTA SVCS COM 74762E102 16,450 -9,000 -35.36 474 -34.71 0.1652
2015-04-28 2015-03-31 13F QUANTA SVCS COM 74762E102 25,450 -4,700 -15.59 726 -15.19 0.2376
2015-01-22 2014-12-31 13F QUANTA SVCS COM 74762E102 30,150 -1,600 -5.04 856 -25.69 0.2806
2014-10-23 2014-09-30 13F QUANTA SVCS COM 74762E102 31,750 4,500 16.51 1,152 22.29 0.3927
2014-07-23 2014-06-30 13F QUANTA SVCS COM 74762E102 27,250 27,250 942 0.3047
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.