Quanta Services, Inc.
MX ˙ BMV ˙ US74762E1029
SecurityMX:PWR / Quanta Services, Inc.
InstitutionDAVENPORT & Co LLC
Latest Disclosed Ownership145,740 shares
Latest Disclosed Value $ 79,448,376
DAVENPORT & Co LLC ownership in PWR / Quanta Services, Inc.

On April 15, 2026 - DAVENPORT & Co LLC filed a 13F-HR form disclosing ownership of 145,740 shares of Quanta Services, Inc. (MX:PWR) valued at $79,448,376 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 231,830 shares of Quanta Services, Inc.. This represents a change in shares of -37.13% during the quarter.

DAVENPORT & Co LLC has a history of taking positions in derivatives of the underlying security (PWR) in the form of stock options.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:PWR / Quanta Services, Inc. Historical Put/Call Ratio
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)
2026-04-15 2026-03-31 13F QUANTA SVCS COM 74762E102 145,740 -86,090 -37.13 79,448 -19.14 0.4321
2026-01-12 2025-12-31 13F QUANTA SVCS COM 74762E102 231,830 -3,208 -1.36 98,248 1.20 0.5234
2025-10-15 2025-09-30 13F QUANTA SVCS COM 74762E102 235,038 235,038 97,080 0.5174
2025-07-22 2025-06-30 13F QUANTA SVCS COM 74762E102 0 -9,719 -100.00 0 -100.00
2025-04-28 2025-03-31 13F QUANTA SVCS COM 74762E102 9,719 272 2.88 2,470 -17.25 0.0143
2025-01-24 2024-12-31 13F QUANTA SVCS COM 74762E102 9,447 136 1.46 2,986 7.57 0.0169
2024-10-24 2024-09-30 13F QUANTA SVCS COM 74762E102 9,311 52 0.56 2,776 17.98 0.0157
2024-08-06 2024-06-30 13F QUANTA SVCS COM 74762E102 9,259 217 2.40 2,353 0.13 0.0142
2024-05-03 2024-03-31 13F QUANTA SVCS COM 74762E102 9,042 254 2.89 2,349 23.89 0.0144
2024-01-23 2023-12-31 13F QUANTA SVCS COM 74762E102 8,788 261 3.06 1,896 18.87 0.0129
2023-10-17 2023-09-30 13F QUANTA SVCS COM 74762E102 8,527 -413 -4.62 1,595 -9.17 0.0121
2023-07-20 2023-06-30 13F QUANTA SVCS COM 74762E102 8,940 1,026 12.96 1,756 33.23 0.0129
2023-04-27 2023-03-31 13F QUANTA SVCS COM 74762E102 7,914 283 3.71 1,319 21.25 0.0103
2023-01-20 2022-12-31 13F QUANTA SVCS COM 74762E102 7,631 248 3.36 1,087 15.52 0.0089
2022-10-11 2022-09-30 13F QUANTA SVCS COM 74762E102 7,383 390 5.58 941 7.30 0.0082
2022-07-18 2022-06-30 13F QUANTA SVCS COM 74762E102 6,993 -369 -5.01 877 -9.49 0.0072
2022-05-02 2022-03-31 13F/A-1 QUANTA SVCS COM 74762E102 7,362 -11 -0.15 969 14.67 0.0066
2022-05-02 2022-03-31 13F PWR COM 74762E102 7,362 -11 969 0.0066
2022-02-10 2021-12-31 13F PWR COM 74762E102 7,373 -330 -4.28 845 -3.65 0.0056
2021-10-14 2021-09-30 13F PWR COM 74762E102 7,703 0 0.00 877 25.64 0.0062
2021-07-28 2021-06-30 13F/A-2 QUANTA SVCS COM 74762E102 7,703 75 0.98 698 4.02 0.0054
2021-04-28 2021-03-31 13F QUANTA SVCS COM 74762E102 7,628 190 2.55 671 25.19 0.0063
2021-01-13 2020-12-31 13F PWR COM 74762E102 7,438 -309 -3.99 536 30.73 0.0053
2020-10-15 2020-09-30 13F QUANTA SVCS COM 74762E102 7,747 -105 -1.34 410 33.12 0.0046
2020-07-28 2020-06-30 13F QUANTA SVCS COM 74762E102 7,852 -595 -7.04 308 14.93 0.0038
2020-05-05 2020-03-31 13F PWR COM 74762E102 8,447 -5 -0.06 268 -22.09 0.0039
2020-01-22 2019-12-31 13F PWR COM 74762E102 8,452 525 6.62 344 13.53 0.0037
2019-10-16 2019-09-30 13F PWR COM 74762E102 7,927 0 0.00 303 0.00 0.0036
2019-07-10 2019-06-30 13F PWR COM 74762E102 7,927 -100 -1.25 303 0.00 0.0036
2019-04-17 2019-03-31 13F PWR COM 74762E102 8,027 -325 -3.89 303 20.72 0.0038
2019-01-28 2018-12-31 13F PWR COM 74762E102 8,352 -54,677 -86.75 251 -88.07 0.0035
2018-10-11 2018-09-30 13F PWR COM 74762E102 63,029 7,027 12.55 2,104 210,300.00 0.0244
2018-07-09 2018-06-30 13F PWR COM 74762E102 56,002 -74,696 -57.15 2 -99.98 0.0231
2018-04-04 2018-03-31 13F PWR COM 74762E102 130,698 -472 -0.36 4,489 -12.50 0.0553
2018-01-17 2017-12-31 13F PWR COM 74762E102 131,170 222 0.17 5,130 4.84 0.0616
2017-10-12 2017-09-30 13F PWR COM 74762E102 130,948 525 0.40 4,894 13.98 0.0620
2017-07-18 2017-06-30 13F/A-1 PWR COM 74762E102 130,423 -4,400 -3.26 4,294 -8.62 0.0567
2017-07-10 2017-06-30 13F PWR COM 74762E102 131,823 4,594
2017-04-11 2017-03-31 13F PWR COM 74762E102 134,823 -2,000 -1.46 4,699 117,350.00 0.0671
2017-01-05 2016-12-31 13F PWR COM 74762E102 136,823 -10,167 -6.92 5 -99.90 0.0684
2016-10-19 2016-09-30 13F PWR COM 74762E102 146,990 -2,977 -1.99 4,114 18.66 0.0607
2016-07-12 2016-06-30 13F PWR COM 74762E102 149,967 -215 -0.14 3,467 2.33 0.0528
2016-04-25 2016-03-31 13F PWR COM 74762E102 150,182 64,065 74.39 3,388 94.38 0.0532
2016-01-20 2015-12-31 13F PWR COM 74762E102 86,117 -92,487 -51.78 1,744 -59.69 0.0282
2015-10-23 2015-09-30 13F PWR COM 74762E102 178,604 4,007 2.29 4,324 -14.05 0.0727
2015-08-12 2015-06-30 13F QUANTA SERVICES COM 74762E102 174,597 -8,677 -4.73 5,032 -3.77 0.0780
2015-04-24 2015-03-31 13F QUANTA SERVICES COM 74762E102 183,274 183,274 4.97 5,229 3.92 0.0804
2015-02-04 2014-12-31 13F QUANTA SERVICES COM 74762E102 0 -79,813 -100.00 0 -100.00
2014-10-10 2014-09-30 13F QUANTA SERVICES COM 74762E102 79,813 3,595 4.72 2,896 9.91 0.0506
2014-07-25 2014-06-30 13F QUANTA SERVICES COM 74762E102 76,218 13,993 22.49 2,636 14.76 0.0448
2014-04-21 2014-03-31 13F QUANTA SVCS COM 74762E102 62,225 4,655 8.09 2,296 -99.87 0.0416
2014-01-31 2013-12-31 13F QUANTA SVCS COM 74762E102 57,570 24,270 72.88 1,816,909 98.33 0.0339
2013-11-05 2013-09-30 13F/A-1 QUANTA SVCS COM 74762E102 33,300 7,875 30.97 916,083 36.17 0.0189
2013-11-01 2013-09-30 13F QUANTA SVCS COM 74762E102 25,425 672,746
2013-08-12 2013-06-30 13F QUANTA SVCS COM 74762E102 25,425 25,425 672,746 0.0148
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2021-10-14 2021-09-30 13F QUANTA SVCS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-07-21 2021-06-30 13F QUANTA SVCS COM Put 7,703 698 n/a n/a n/a
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.