Quanta Services, Inc.
MX ˙ BMV ˙ US74762E1029
SecurityMX:PWR / Quanta Services, Inc.
InstitutionKorea Investment CORP
Latest Disclosed Ownership164,888 shares
Latest Disclosed Value $ 90,526,810
Korea Investment CORP reports 16.58% increase in ownership of PWR / Quanta Services, Inc.

On May 13, 2026 - Korea Investment CORP filed a 13F-HR form disclosing ownership of 164,888 shares of Quanta Services, Inc. (MX:PWR) valued at $90,526,810 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 141,440 shares of Quanta Services, Inc.. This represents a change in shares of 16.58% 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)
2026-05-13 2026-03-31 13F QUANTA SVCS COM 74762E102 164,888 23,448 16.58 90,527 51.65 0.1875
2026-02-13 2025-12-31 13F QUANTA SVCS COM 74762E102 141,440 -21,065 -12.96 59,696 -11.36 0.1175
2025-11-13 2025-09-30 13F QUANTA SVCS COM 74762E102 162,505 -22,594 -12.21 67,345 -3.77 0.1385
2025-08-13 2025-06-30 13F QUANTA SVCS COM 74762E102 185,099 -57,033 -23.55 69,982 13.71 0.1557
2025-05-14 2025-03-31 13F QUANTA SVCS COM 74762E102 242,132 117,301 93.97 61,545 56.00 0.1492
2025-02-12 2024-12-31 13F QUANTA SVCS COM 74762E102 124,831 -20,719 -14.23 39,453 -9.09 0.0935
2024-11-13 2024-09-30 13F QUANTA SVCS COM 74762E102 145,550 22,688 18.47 43,396 39.01 0.1030
2024-08-13 2024-06-30 13F QUANTA SVCS COM 74762E102 122,862 -111,667 -47.61 31,218 -48.76 0.0787
2024-05-14 2024-03-31 13F QUANTA SVCS COM 74762E102 234,529 -172,948 -42.44 60,931 -30.71 0.1546
2024-02-13 2023-12-31 13F QUANTA SVCS COM 74762E102 407,477 130,205 46.96 87,934 69.53 0.2309
2023-11-13 2023-09-30 13F QUANTA SVCS COM 74762E102 277,272 82,241 42.17 51,869 35.38 0.1528
2023-08-11 2023-06-30 13F QUANTA SVCS COM 74762E102 195,031 3,423 1.79 38,314 19.99 0.1077
2023-05-12 2023-03-31 13F QUANTA SVCS COM 74762E102 191,608 118,244 161.17 31,930 205.42 0.0930
2023-02-13 2022-12-31 13F QUANTA SVCS COM 74762E102 73,364 6,892 10.37 10,454 23.45 0.0328
2022-11-10 2022-09-30 13F QUANTA SVCS COM 74762E102 66,472 20,472 44.50 8,468 46.86 0.0261
2022-08-12 2022-06-30 13F QUANTA SVCS COM 74762E102 46,000 46,000 5,766 0.0176
2020-11-12 2020-09-30 13F QUANTA SVCS COM 74762E102 0 -51,600 -100.00 0 -100.00
2020-08-12 2020-06-30 13F QUANTA SVCS COM 74762E102 51,600 51,600 2,024 0.0074
2016-08-12 2016-06-30 13F QUANTA SVCS COM 74762E102 0 -78,700 -100.00 0 -100.00
2016-05-12 2016-03-31 13F QUANTA SVCS COM 74762E102 78,700 78,700 0.00 1,775 0.0130
2016-02-01 2015-12-31 13F QUANTA SVCS COM 74762E102 0 -42,100 -100.00 0 -100.00
2015-11-12 2015-09-30 13F QUANTA SVCS COM 74762E102 42,100 4,100 10.79 1,019 -6.94 0.0081
2015-08-13 2015-06-30 13F QUANTA SVCS COM 74762E102 38,000 0 0.00 1,095 1.01 0.0093
2015-05-11 2015-03-31 13F QUANTA SVCS COM 74762E102 38,000 8,200 27.52 1,084 28.13 0.0084
2015-02-12 2014-12-31 13F QUANTA SVCS COM 74762E102 29,800 29,800 0.00 846 0.0069
2014-11-14 2014-09-30 13F QUANTA SVCS COM 74762E102 0 -32,200 -100.00 0 -100.00
2014-08-14 2014-06-30 13F QUANTA SVCS COM 74762E102 32,200 -39,300 -54.97 1,113 -57.81 0.0093
2014-05-14 2014-03-31 13F QUANTA SVCS COM 74762E102 71,500 35,900 100.84 2,638 134.70 0.0234
2014-02-06 2013-12-31 13F QUANTA SVCS COM 74762E102 35,600 35,600 1,124 0.0106
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.