Quanta Services, Inc.
US ˙ NYSE ˙ US74762E1029

SecurityPWR / Quanta Services, Inc.
InstitutionGAM Holding AG
Latest Disclosed Ownership2,305 shares
Latest Disclosed Value $ 972,848
GAM Holding AG reports 142.12% increase in ownership of PWR / Quanta Services, Inc.

On February 17, 2026 - GAM Holding AG filed a 13F-HR form disclosing ownership of 2,305 shares of Quanta Services, Inc. (US:PWR) valued at $972,848 USD as of December 31, 2025. The entity filed a previous 13F-HR on October 21, 2025 disclosing 952 shares of Quanta Services, Inc.. This represents a change in shares of 142.12% during the quarter. The current value of the position is $1,657,687 USD.

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)
2026-02-17 2025-12-31 13F QUANTA SVCS COM 74762E102 2,305 1,353 142.12 973 146.70 0.0621
2025-10-21 2025-09-30 13F QUANTA SVCS COM 74762E102 952 952 395 0.0244
2021-08-09 2021-06-30 13F QUANTA SVCS COM 74762E102 0 -2,770 -100.00 0 -100.00
2021-05-10 2021-03-31 13F QUANTA SVCS COM 74762E102 2,770 -1,360 -32.93 244 -18.12 0.0113
2021-02-10 2020-12-31 13F QUANTA SVCS COM 74762E102 4,130 -93,673 -95.78 298 -94.23 0.0177
2020-11-06 2020-09-30 13F QUANTA SVCS COM 74762E102 97,803 -37,014 -27.45 5,169 -2.25 0.3111
2020-08-10 2020-06-30 13F QUANTA SVCS COM 74762E102 134,817 -28,118 -17.26 5,288 2.28 0.3287
2020-05-12 2020-03-31 13F QUANTA SVCS COM 74762E102 162,935 -34,036 -17.28 5,170 -35.52 0.3514
2020-02-06 2019-12-31 13F QUANTA SVCS COM 74762E102 196,971 -20,904 -9.59 8,018 -2.65 0.3787
2019-11-08 2019-09-30 13F QUANTA SVCS COM 74762E102 217,875 -81,419 -27.20 8,236 -27.94 0.3626
2019-08-12 2019-06-30 13F QUANTA SVCS COM 74762E102 299,294 -3,184 -1.05 11,430 0.12 0.4464
2019-05-10 2019-03-31 13F QUANTA SVCS COM 74762E102 302,478 -26,865 -8.16 11,416 15.15 0.4797
2019-02-08 2018-12-31 13F QUANTA SVCS COM 74762E102 329,343 -47,954 -12.71 9,914 -21.29 0.5017
2018-11-13 2018-09-30 13F QUANTA SVCS COM 74762E102 377,297 -14,632 -3.73 12,595 -3.78 0.4583
2018-08-09 2018-06-30 13F QUANTA SVCS COM 74762E102 391,929 -9,304 -2.32 13,090 -5.02 0.4552
2018-05-15 2018-03-31 13F QUANTA SVCS COM 74762E102 401,233 3,266 0.82 13,782 -11.46 0.4863
2018-02-14 2017-12-31 13F QUANTA SVCS COM 74762E102 397,967 -13,033 -3.17 15,565 1.34 0.4774
2017-11-14 2017-09-30 13F QUANTA SVCS COM 74762E102 411,000 -92,300 -18.34 15,359 -7.30 0.6480
2017-08-07 2017-06-30 13F QUANTA SVCS COM 74762E102 503,300 110 0.02 16,568 -11.28 0.2444
2017-05-12 2017-03-31 13F QUANTA SVCS COM 74762E102 503,190 -67,908 -11.89 18,674 -6.17 0.2950
2017-02-10 2016-12-31 13F QUANTA SVCS COM 74762E102 571,098 -105,748 -15.62 19,903 5.16 0.3489
2016-11-07 2016-09-30 13F QUANTA SVCS COM 74762E102 676,846 -66,409 -8.93 18,927 10.16 0.3326
2016-08-11 2016-06-30 13F QUANTA SVCS COM 74762E102 743,255 -56,506 -7.07 17,181 -4.80 0.2664
2016-05-13 2016-03-31 13F QUANTA SVCS COM 74762E102 799,761 -28,964 -3.50 18,047 7.51 0.3004
2016-02-08 2015-12-31 13F QUANTA SVCS COM 74762E102 828,725 -17,980 -2.12 16,786 -18.10 0.2614
2015-11-12 2015-09-30 13F QUANTA SVCS COM 74762E102 846,705 -12,088 -1.41 20,496 -17.18 0.3523
2015-07-27 2015-06-30 13F QUANTA SVCS COM 74762E102 858,793 71,393 9.07 24,747 10.19 0.3582
2015-05-12 2015-03-31 13F QUANTA SVCS COM 74762E102 787,400 5,000 0.64 22,458 1.12 0.3360
2015-02-06 2014-12-31 13F QUANTA SVCS COM 74762E102 782,400 -72,453 -8.48 22,209 -28.42 0.3318
2014-11-12 2014-09-30 13F QUANTA SVCS COM 74762E102 854,853 0 0.00 31,027 4.97 0.4507
2014-08-11 2014-06-30 13F QUANTA SVCS COM 74762E102 854,853 153,953 21.97 29,558 14.26 0.4485
2014-05-15 2014-03-31 13F QUANTA SVCS COM 74762E102 700,900 -29,000 -3.97 25,868 12.30 0.4154
2014-02-12 2013-12-31 13F QUANTA SVCS COM 74762E102 729,900 100,000 15.88 23,034 32.91 0.4017
2013-11-12 2013-09-30 13F QUANTA SVCS COM 74762E102 629,900 6,000 0.96 17,331 5.00 0.3244
2013-08-13 2013-06-30 13F Quanta Services Inc. Common USD0.0 COM 74762E102 623,900 623,900 16,506 0.3610
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.