Quanta Services, Inc.
US ˙ NYSE ˙ US74762E1029

SecurityPWR / Quanta Services, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership292,187 shares
Latest Disclosed Value $ 123,320,065
Sei Investments Co ownership in PWR / Quanta Services, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 292,187 shares of Quanta Services, Inc. (US:PWR) valued at $123,320,445 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 76,668 shares of Quanta Services, Inc.. This represents a change in shares of 281.11% during the quarter. The current value of the position is $209,109,470 USD.

Sei Investments Co 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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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.

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)
2026-02-13 2025-12-31 13F QUANTA SVCS COM 74762E102 292,187 215,519 281.11 123,320 288.14 0.1217
2025-11-13 2025-09-30 13F QUANTA SVCS COM 74762E102 76,668 14,594 23.51 31,773 35.38 0.0342
2025-08-14 2025-06-30 13F QUANTA SVCS COM 74762E102 62,074 8,867 16.67 23,468 73.52 0.0272
2025-05-14 2025-03-31 13F/A-1 QUANTA SVCS COM 74762E102 53,207 -287,336 -84.38 13,525 -87.43 0.0174
2025-05-13 2025-03-31 13F QUANTA SVCS COM 74762E102 343,015 2,472 106,655 0.1160
2025-02-11 2024-12-31 13F QUANTA SVCS COM 74762E102 340,543 -14,250 -4.02 107,628 1.75 0.1382
2024-11-12 2024-09-30 13F QUANTA SVCS COM 74762E102 354,793 -35,776 -9.16 105,781 6.59 0.1374
2024-08-13 2024-06-30 13F QUANTA SVCS COM 74762E102 390,569 6,552 1.71 99,239 -0.53 0.1406
2024-05-07 2024-03-31 13F QUANTA SVCS COM 74762E102 384,017 59,794 18.44 99,770 42.60 0.1462
2024-02-14 2023-12-31 13F QUANTA SVCS COM 74762E102 324,223 258,580 393.92 69,966 469.76 0.1123
2023-11-14 2023-09-30 13F QUANTA SVCS COM 74762E102 65,643 10,019 18.01 12,281 12.38 0.0221
2023-08-11 2023-06-30 13F QUANTA SVCS COM 74762E102 55,624 -5,580 -9.12 10,928 7.14 0.0191
2023-05-12 2023-03-31 13F QUANTA SVCS COM 74762E102 61,204 -15,009 -19.69 10,199 -6.10 0.0189
2023-02-10 2022-12-31 13F QUANTA SVCS COM 74762E102 76,213 -22,635 -22.90 10,862 -13.75 0.0241
2022-11-14 2022-09-30 13F QUANTA SVCS COM 74762E102 98,848 -3,588 -3.50 12,592 -2.62 0.0281
2022-08-15 2022-06-30 13F QUANTA SVCS COM 74762E102 102,436 20,394 24.86 12,931 19.09 0.0279
2022-05-13 2022-03-31 13F QUANTA SVCS COM 74762E102 82,042 -17,273 -17.39 10,858 -5.15 0.0218
2022-02-14 2021-12-31 13F QUANTA SVCS COM 74762E102 99,315 -4,185 -4.04 11,448 -2.98 0.0215
2021-11-12 2021-09-30 13F QUANTA SVCS COM 74762E102 103,500 15,102 17.08 11,800 48.00 0.0248
2021-08-06 2021-06-30 13F QUANTA SVCS COM 74762E102 88,398 -16,182 -15.47 7,973 -9.45 0.0177
2021-05-12 2021-03-31 13F QUANTA SVCS COM 74762E102 104,580 -56,762 -35.18 8,805 -24.23 0.0222
2021-02-08 2020-12-31 13F QUANTA SVCS COM 74762E102 161,342 -29,752 -15.57 11,620 15.04 0.0300
2020-12-04 2020-09-30 13F/A-1 QUANTA SVCS COM 74762E102 191,094 3,738 2.00 10,101 37.43 0.0292
2020-11-06 2020-09-30 13F QUANTA SVCS COM 74762E102 194,324 6,968 10,272 24,732.6921
2020-08-17 2020-06-30 13F/A-1 QUANTA SVCS COM 74762E102 187,356 -104,161 -35.73 7,350 -20.54 0.0228
2020-08-11 2020-06-30 13F QUANTA SVCS COM 74762E102 291,162 -355 11,849 32,141.0432
2020-05-14 2020-03-31 13F QUANTA SVCS COM 74762E102 291,517 -6,776 -2.27 9,250 -23.83 0.0340
2020-02-06 2019-12-31 13F QUANTA SVCS COM 74762E102 298,293 2,962 1.00 12,144 8.79 0.0362
2019-11-12 2019-09-30 13F QUANTA SVCS COM 74762E102 295,331 -10,996 -3.59 11,163 -4.58 0.0286
2019-08-14 2019-06-30 13F QUANTA SVCS COM 74762E102 306,327 175,708 134.52 11,699 137.30 0.0382
2019-05-15 2019-03-31 13F QUANTA SVCS COM 74762E102 130,619 100,253 330.15 4,930 386.19 0.0166
2019-02-13 2018-12-31 13F QUANTA SVCS COM 74762E102 30,366 0 0.00 1,014 0.00 0.0036
2018-11-08 2018-09-30 13F QUANTA SVCS COM 74762E102 30,366 -13,262 -30.40 1,014 -30.40 0.0037
2018-08-03 2018-06-30 13F QUANTA SVCS COM 74762E102 43,628 16,479 60.70 1,457 56.16 0.0050
2018-05-11 2018-03-31 13F QUANTA SVCS COM 74762E102 27,149 -24,205 -47.13 933 -53.56 0.0036
2018-02-08 2017-12-31 13F QUANTA SVCS COM 74762E102 51,354 -6,729 -11.59 2,009 -7.46 0.0070
2017-11-06 2017-09-30 13F QUANTA SVCS COM 74762E102 58,083 -22,077 -27.54 2,171 -17.73 0.0077
2017-07-31 2017-06-30 13F QUANTA SVCS COM 74762E102 80,160 -6,415 -7.41 2,639 -17.86 0.0105
2017-05-05 2017-03-31 13F QUANTA SVCS COM 74762E102 86,575 -1,352 -1.54 3,213 4.90 0.0141
2017-02-02 2016-12-31 13F QUANTA SVCS COM 74762E102 87,927 5,972 7.29 3,063 33.52 0.0148
2016-11-04 2016-09-30 13F QUANTA SVCS COM 74762E102 81,955 34,320 72.05 2,294 108.36 0.0117
2016-08-11 2016-06-30 13F QUANTA SVCS COM 74762E102 47,635 38,797 438.98 1,101 450.50 0.0066
2016-05-10 2016-03-31 13F/A-1 QUANTA SVCS COM 74762E102 8,838 2,078 30.74 200 47.06 0.0012
2016-02-03 2015-12-31 13F QUANTA SVCS COM 74762E102 6,760 -4,591 -40.45 136 -50.55 0.0008
2015-11-02 2015-09-30 13F/A-1 QUANTA SVCS COM 74762E102 11,351 -5,010 -30.62 275 -41.61 0.0025
2015-10-30 2015-09-30 13F QUANTA SVCS COM 74762E102 11,351 276
2015-08-07 2015-06-30 13F/A-1 QUALYS PUT 74762E102 0 -22,114 -100.00 0 -100.00
2015-08-07 2015-06-30 13F/A-1 QUANTA SVCS COM 74762E102 16,361 -5,753 -26.02 471 -25.36 0.0043
2015-08-04 2015-06-30 13F QUANTA SVCS COM 74762E102 16,361 -5,753 471 0.0043
2015-05-14 2015-03-31 13F/A-1 QUANTA SVCS COM 74762E102 22,114 -3,098 -12.29 631 -11.87 0.0055
2015-05-01 2015-03-31 13F QUALYS PUT 74762E102 22,114 22,114 631 0.0055
2015-02-10 2014-12-31 13F QUANTA SVCS COM 74762E102 25,212 25,212 716 0.0063
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
(%)
2015-08-07 2015-06-30 13F/A QUALYS PUT 0 -100.00 0 -100.00 n/a n/a n/a
2015-05-01 2015-03-31 13F QUALYS PUT 22,114 631 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.