Quanta Services, Inc.
MX ˙ BMV ˙ US74762E1029
SecurityMX:PWR / Quanta Services, Inc.
InstitutionGuinness Atkinson Asset Management Inc
Latest Disclosed Ownership740 shares
Latest Disclosed Value $ 406,275
Guinness Atkinson Asset Management Inc ownership in PWR / Quanta Services, Inc.

On April 21, 2026 - Guinness Atkinson Asset Management Inc filed a 13F-HR form disclosing ownership of 740 shares of Quanta Services, Inc. (MX:PWR) valued at $406,275 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 10, 2026 disclosing 740 shares of Quanta Services, Inc.. This represents a change in shares of 0.00% 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)
2026-04-21 2026-03-31 13F QUANTA SVCS COM 74762E102 740 0 0.00 406 27.67 0.2029
2026-02-10 2025-12-31 13F/A-1 QUANTA SVCS COM 74762E102 740 -192 -20.60 319 -16.54 0.1502
2026-02-09 2025-12-31 13F QUANTA SVCS COM 74762E102 932 0 381 0.1811
2025-11-05 2025-09-30 13F QUANTA SVCS COM 74762E102 932 0 0.00 381 8.24 0.1811
2025-08-01 2025-06-30 13F QUANTA SVCS COM 74762E102 932 -155 -14.26 352 27.54 0.1848
2025-05-12 2025-03-31 13F QUANTA SVCS COM 74762E102 1,087 -155 -12.48 276 -29.59 0.1539
2025-01-16 2024-12-31 13F QUANTA SVCS COM 74762E102 1,242 -398 -24.27 393 -19.67 0.2002
2024-10-10 2024-09-30 13F QUANTA SVCS COM 74762E102 1,640 200 13.89 489 33.70 0.2379
2024-07-11 2024-06-30 13F QUANTA SVCS COM 74762E102 1,440 -160 -10.00 366 -12.05 0.1791
2024-04-12 2024-03-31 13F QUANTA SVCS COM 74762E102 1,600 -160 -9.09 416 9.50 0.1953
2024-02-12 2023-12-31 13F QUANTA SVCS COM 74762E102 1,760 -320 -15.38 380 -2.57 0.1943
2023-11-06 2023-09-30 13F QUANTA SVCS COM 74762E102 2,080 -920 -30.67 389 -33.96 0.2164
2023-07-24 2023-06-30 13F QUANTA SVCS COM 74762E102 3,000 -58 -1.90 589 15.72 0.3121
2023-04-10 2023-03-31 13F QUANTA SVCS COM 74762E102 3,058 -278 -8.33 510 7.16 0.2878
2023-02-02 2022-12-31 13F QUANTA SVCS COM 74762E102 3,336 0 0.00 475 11.76 0.2992
2022-10-24 2022-09-30 13F QUANTA SVCS COM 74762E102 3,336 -1,326 -28.44 425 -27.23 0.2712
2022-09-06 2022-06-30 13F QUANTA SVCS COM 74762E102 4,662 0 0.00 584 -4.89 0.3405
2022-04-13 2022-03-31 13F QUANTA SVCS COM 74762E102 4,662 0 0.00 614 14.77 0.2950
2022-01-19 2021-12-31 13F QUANTA SVCS COM 74762E102 4,662 333 7.69 535 8.52 0.2337
2021-12-07 2021-09-30 13F QUANTA SVCS COM 74762E102 4,329 0 0.00 493 25.77 0.2290
2021-08-03 2021-06-30 13F QUANTA SVCS COM 74762E102 4,329 -1,820 -29.60 392 -27.54 0.1736
2021-04-21 2021-03-31 13F QUANTA SVCS COM 74762E102 6,149 2,838 85.71 541 127.31 0.2675
2021-01-25 2020-12-31 13F QUANTA SVCS COM 74762E102 3,311 1,259 61.35 238 120.37 0.1273
2020-10-27 2020-09-30 13F QUANTA SVCS COM 74762E102 2,052 513 33.33 108 80.00 0.0657
2020-07-28 2020-06-30 13F QUANTA SVCS COM 74762E102 1,539 90 6.21 60 30.43 0.0388
2020-04-30 2020-03-31 13F QUANTA SVCS COM 74762E102 1,449 -7,843 -84.41 46 -87.83 0.0364
2020-02-04 2019-12-31 13F QUANTA SVCS COM 74762E102 9,292 1,692 22.26 378 31.71 0.2665
2019-10-28 2019-09-30 13F QUANTA SVCS COM 74762E102 7,600 0 0.00 287 -1.03 0.2266
2019-07-26 2019-06-30 13F QUANTA SVCS COM 74762E102 7,600 1,000 15.15 290 16.47 0.2153
2019-04-24 2019-03-31 13F QUANTA SVCS COM 74762E102 6,600 6,600 249 0.1868
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.