Quanta Services, Inc.
MX ˙ BMV ˙ US74762E1029
SecurityMX:PWR / Quanta Services, Inc.
InstitutionReaves W H & Co Inc
Latest Disclosed Ownership250,284 shares
Latest Disclosed Value $ 137,410,922
Reaves W H & Co Inc reports 7.51% decrease in ownership of PWR / Quanta Services, Inc.

On May 7, 2026 - Reaves W H & Co Inc filed a 13F-HR form disclosing ownership of 250,284 shares of Quanta Services, Inc. (MX:PWR) valued at $137,410,922 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 270,609 shares of Quanta Services, Inc.. This represents a change in shares of -7.51% 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)
2026-05-07 2026-03-31 13F QUANTA SVCS INC COM COM 74762E102 250,284 -20,325 -7.51 137,411 20.31 2.2802
2026-02-10 2025-12-31 13F QUANTA SVCS INC COM COM 74762E102 270,609 -353 -0.13 114,213 1.71 1.9978
2025-11-06 2025-09-30 13F QUANTA SVCS INC COM COM 74762E102 270,962 -885 -0.33 112,292 9.26 2.0001
2025-08-11 2025-06-30 13F QUANTA SVCS INC COM COM 74762E102 271,847 -9,738 -3.46 102,780 43.60 2.2785
2025-05-09 2025-03-31 13F QUANTA SVCS INC COM COM 74762E102 281,585 25,107 9.79 71,573 88,261.73 1.8214
2025-02-06 2024-12-31 13F QUANTA SVCS INC COM COM 74762E102 256,478 -1,133 -0.44 81 6.58 2.1368
2024-11-05 2024-09-30 13F QUANTA SVCS INC COM COM 74762E102 257,611 7,938 3.18 77 20.63 2.1013
2024-08-08 2024-06-30 13F QUANTA SVCS INC COM COM 74762E102 249,673 137,514 122.61 63 117.24 2.1425
2024-05-07 2024-03-31 13F QUANTA SVCS INC COM COM 74762E102 112,159 112,159 29 1.0332
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.