QUANTA SVCS INC PWR
COM · Common Stock · CUSIP 74762E102 · ISIN US74762E1029
American Corporation
- SectorIndustrials
- IndustryElectrical Work
- HeadquartersHouston, TX
- Founded1997
- Websitequantaservices.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($197.5m this quarter). Holder counts are more reliable. Shares outstanding: 149.0m as of 2025-07-28, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $378.00. Options: 34 managers hold calls ($594.1m notional), 32 hold puts ($543.0m).
Trends to Q2 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 823 |
| Q4 2022 | 874 |
| Q1 2023 | 896 |
| Q2 2023 | 944 |
| Q3 2023 | 965 |
| Q4 2023 | 1,023 |
| Q1 2024 | 1,072 |
| Q2 2024 | 1,149 |
| Q3 2024 | 1,191 |
| Q4 2024 | 1,302 |
| Q1 2025 | 1,287 |
| Q2 2025 | 1,395 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 415 | 449 |
| Q4 2023 | 433 | 489 |
| Q1 2024 | 504 | 471 |
| Q2 2024 | 594 | 445 |
| Q3 2024 | 587 | 505 |
| Q4 2024 | 599 | 517 |
| Q1 2025 | 698 | 571 |
| Q2 2025 | 740 | 556 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $477.7m | $253.6m | 0.53 |
| Q4 2024 | $486.6m | $297.8m | 0.61 |
| Q1 2025 | $423.8m | $232.1m | 0.55 |
| Q2 2025 | $594.1m | $543.0m | 0.91 |
Biggest buyers
| ROYAL BANK OF CANADA | Added | +1.7m |
| VICTORY CAPITAL MANAGEMENT INC | Added | +1.6m |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | Added | +882.2k |
| Select Equity Group, L.P. | Added | +416.4k |
| VANGUARD GROUP INC | Added | +339.4k |
| FMR LLC | Added | +282.2k |
| BlackRock, Inc. | Added | +270.7k |
| Allspring Global Investments Holdings, LLC | Added | +251.8k |
| National Pension Service | Added | +219.8k |
| GOLDMAN SACHS GROUP INC | Added | +204.0k |
Biggest sellers
| Amundi | Reduced | -772.2k |
| JENNISON ASSOCIATES LLC | Reduced | -505.3k |
| VOYA INVESTMENT MANAGEMENT LLC | Reduced | -484.5k |
| Employees Provident Fund Board | Reduced | -471.4k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Reduced | -332.1k |
| PECONIC PARTNERS LLC | Reduced | -300.9k |
| Greenvale Capital LLP | Sold out | -300.0k |
| UBS Group AG | Reduced | -292.7k |
| Invesco Ltd. | Reduced | -196.5k |
| NORDEA INVESTMENT MANAGEMENT AB | Reduced | -187.4k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $137.2m363.0k shares |
| CITADEL ADVISORS LLC | Added | $79.7m210.7k shares |
| PEAK6 LLC | Added | $52.0m137.6k shares |
| SCOPUS ASSET MANAGEMENT, L.P. | Reduced | $37.2m98.4k shares |
| JANE STREET GROUP, LLC | Added | $34.5m91.3k shares |
| Walleye Trading LLC | Added | $31.4m83.1k shares |
| UBS Group AG | Added | $31.3m82.7k shares |
| IMC-Chicago, LLC | Reduced | $23.5m62.2k shares |
| Parallax Volatility Advisers, L.P. | Unchanged | $20.8m55.0k shares |
| GROUP ONE TRADING LLC | Added | $18.8m49.8k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $225.3m595.9k shares |
| PEAK6 LLC | Added | $58.8m155.4k shares |
| IMC-Chicago, LLC | Added | $46.6m123.2k shares |
| JANE STREET GROUP, LLC | Added | $40.0m105.8k shares |
| Twin Tree Management, LP | New | $28.5m75.4k shares |
| CITADEL ADVISORS LLC | Reduced | $28.3m74.8k shares |
| Cubist Systematic Strategies, LLC | Added | $20.6m54.4k shares |
| TORONTO DOMINION BANK | Added | $15.1m40.0k shares |
| Walleye Trading LLC | Added | $13.4m35.5k shares |
| SCOPUS ASSET MANAGEMENT, L.P. | Reduced | $11.2m29.5k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 7.5% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC), Capital World Investors (4.6%, 2025-11-13)
Insider purchases and sales in Q2 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2023 | 0 | — | 1 | $1.1m | $1.1m |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 6 | $16.6m | $2.8m |
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 0 | — | 4 | $53.1m | — |
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
None reported in Q2 2025.
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.11% of their portfolio | 17.8m $6.7bn | Added +339.4k |
| BlackRock, Inc. 0.09% of their portfolio | 12.2m $4.6bn | Added +270.7k |
| Capital World Investors 0.46% of their portfolio | 8.4m $3.2bn | Added +83.5k |
| JPMORGAN CHASE & CO 0.18% of their portfolio | 6.8m $2.6bn | Added +89.3k |
| STATE STREET CORP 0.09% of their portfolio | 6.0m $2.3bn | Added +24.7k |
| FMR LLC 0.12% of their portfolio | 5.7m $2.2bn | Added +282.2k |
| PECONIC PARTNERS LLC 60.56% of their portfolio | 5.0m $1.9bn | Reduced -300.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.10% of their portfolio | 3.9m $1.5bn | Added +152.8k |
| ROYAL BANK OF CANADA 0.12% of their portfolio | 3.1m $1.2bn | Added +1.7m |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.95% of their portfolio | 2.4m $917.0m | Added +882.2k |
| UBS Group AG 0.18% of their portfolio | 2.3m $857.7m | Reduced -292.7k |
| BANK OF AMERICA CORP /DE/ 0.07% of their portfolio | 2.2m $813.1m | Added +104.7k |
| VICTORY CAPITAL MANAGEMENT INC 0.48% of their portfolio | 2.0m $745.4m | Added +1.6m |
| MORGAN STANLEY 0.05% of their portfolio | 1.9m $711.6m | Added +155.2k |
| NORGES BANK 0.08% of their portfolio | 1.8m $675.8m | Added +111.5k |
| Invesco Ltd. 0.11% of their portfolio | 1.7m $647.3m | Reduced -196.5k |
| NORTHERN TRUST CORP 0.08% of their portfolio | 1.6m $590.3m | Added +15.9k |
| Nuveen, LLC 0.16% of their portfolio | 1.5m $567.9m | Reduced -88.5k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.10% of their portfolio | 1.3m $496.8m | Added +172.7k |
| GOLDMAN SACHS GROUP INC 0.08% of their portfolio | 1.3m $487.8m | Added +204.0k |
| Select Equity Group, L.P. 1.64% of their portfolio | 1.0m $384.6m | Added +416.4k |
| Bank of New York Mellon Corp 0.07% of their portfolio | 1.0m $382.1m | Reduced -42.3k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.06% of their portfolio | 902.0k $341.0m | Added +21.5k |
| DEUTSCHE BANK AG\ 0.12% of their portfolio | 874.9k $330.8m | Reduced -129.1k |
| Swedbank AB 0.37% of their portfolio | 864.9k $327.0m | First filing |
| T. Rowe Price Investment Management, Inc. 0.20% of their portfolio | 828.4k $313.2m | Added +11.6k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.60% of their portfolio | 817.0k $308.9m | Reduced -9.5k |
| Legal & General Group Plc 0.07% of their portfolio | 788.1k $298.0m | Reduced -19.5k |
| DIMENSIONAL FUND ADVISORS LP 0.06% of their portfolio | 740.6k $280.0m | Reduced -104.9k |
| VOYA INVESTMENT MANAGEMENT LLC 0.27% of their portfolio | 711.7k $269.1m | Reduced -484.5k |
| ALKEON CAPITAL MANAGEMENT LLC 1.29% of their portfolio | 701.0k $265.0m | Unchanged |
| Pictet Asset Management Holding SA 0.27% of their portfolio | 691.5k $261.4m | Added +110.5k |
| RAYMOND JAMES FINANCIAL INC 0.09% of their portfolio | 660.1k $249.6m | Added +6.8k |
| FEDERATED HERMES, INC. 0.46% of their portfolio | 648.9k $245.3m | Added +108.6k |
| NORDEA INVESTMENT MANAGEMENT AB 0.22% of their portfolio | 639.3k $241.7m | Reduced -187.4k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.08% of their portfolio | 637.1k $240.9m | Reduced -332.1k |
| FIRST TRUST ADVISORS LP 0.19% of their portfolio | 625.9k $236.6m | Reduced -177.8k |
| PNC Financial Services Group, Inc. 0.15% of their portfolio | 606.4k $229.3m | Added +5.7k |
| CITIGROUP INC 0.15% of their portfolio | 556.6k $210.4m | Reduced -23.0k |
| DekaBank Deutsche Girozentrale 0.35% of their portfolio | 517.0k $197.2m | Reduced -35.5k |
| CIBC Private Wealth Group LLC 0.35% of their portfolio | 513.0k $194.0m | Added +118.6k |
| STOREBRAND ASSET MANAGEMENT AS 0.54% of their portfolio | 497.0k $187.9m | Added +82.2k |
| Corient Private Wealth LP 0.25% of their portfolio | 488.7k $184.8m | Added +5.1k |
| TRUIST FINANCIAL CORP 0.26% of their portfolio | 472.2k $178.5m | Reduced -10.2k |
| NEUBERGER BERMAN GROUP LLC 0.13% of their portfolio | 457.4k $172.9m | Added +39.9k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.02% of their portfolio | 456.2k $172.5m | Added +142.6k |
| Swiss National Bank 0.10% of their portfolio | 448.5k $169.6m | Added +32.2k |
| Amundi 0.06% of their portfolio | 434.4k $162.2m | Reduced -772.2k |
| FRANKLIN RESOURCES INC 0.04% of their portfolio | 431.7k $163.2m | Added +10.1k |
| FIL Ltd 0.14% of their portfolio | 420.3k $158.9m | Reduced -185.9k |
| Allspring Global Investments Holdings, LLC 0.26% of their portfolio | 419.1k $156.0m | Added +251.8k |
| BESSEMER GROUP INC 0.26% of their portfolio | 417.2k $157.7m | Reduced -5.3k |
| National Pension Service 0.14% of their portfolio | 415.2k $157.0m | Added +219.8k |
| GILDER GAGNON HOWE & CO LLC 1.61% of their portfolio | 400.3k $151.3m | Reduced -16.3k |
| AGF MANAGEMENT LTD 0.65% of their portfolio | 379.0k $143.3m | Reduced -3.6k |
| STIFEL FINANCIAL CORP 0.14% of their portfolio | 378.4k $143.1m | Added +7.6k |
| Sumitomo Mitsui Trust Group, Inc. 0.09% of their portfolio | 377.9k $142.9m | Added +5.6k |
| Thrivent Financial for Lutherans 0.29% of their portfolio | 356.4k $134.7m | Reduced -75.4k |
| BAMCO INC /NY/ 0.36% of their portfolio | 354.5k $134.0m | Added +28.6k |
| HSBC HOLDINGS PLC 0.08% of their portfolio | 346.8k $131.4m | Reduced -62.7k |
| AMERIPRISE FINANCIAL INC 0.03% of their portfolio | 343.1k $129.7m | Reduced -79.7k |
| RHUMBLINE ADVISERS 0.11% of their portfolio | 339.4k $128.3m | Added +15.0k |
| Robeco Schweiz AG 2.91% of their portfolio | 333.2k $126.0m | Reduced -17.3k |
| Energy Income Partners, LLC 2.43% of their portfolio | 327.7k $123.9m | Added +18.9k |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.28% of their portfolio | 304.3k $115.1m | Reduced -12.4k |
| BARCLAYS PLC 0.05% of their portfolio | 301.4k $114.0m | Reduced -10.1k |
| WELLS FARGO & COMPANY/MN 0.02% of their portfolio | 297.8k $112.6m | Reduced -12.3k |
| Alpha Cubed Investments, LLC 4.11% of their portfolio | 286.6k $108.3m | Added +48.9k |
| Handelsbanken Fonder AB 0.38% of their portfolio | 282.2k $106.7m | Added +16.6k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.09% of their portfolio | 281.7k $106.5m | Added +17.5k |
| REAVES W H & CO INC 2.28% of their portfolio | 271.8k $102.8m | Reduced -9.7k |
| GREAT LAKES ADVISORS, LLC 0.85% of their portfolio | 267.5k $101.1m | Reduced -112.0k |
| California Public Employees Retirement System 0.06% of their portfolio | 250.9k $94.9m | Added +72.2k |
| BANK OF MONTREAL /CAN/ 0.05% of their portfolio | 250.8k $95.6m | Added +39.2k |
| LPL Financial LLC 0.03% of their portfolio | 244.7k $92.5m | Added +6.1k |
| Electron Capital Partners, LLC 4.68% of their portfolio | 231.4k $87.5m | Reduced -18.4k |
| JOHO CAPITAL LLC 12.21% of their portfolio | 229.2k $86.7m | Unchanged |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.10% of their portfolio | 228.2k $86.3m | Added +829 |
| NATIONAL BANK OF CANADA /FI/ 0.09% of their portfolio | 217.7k $82.3m | Added +22.9k |
| AMI ASSET MANAGEMENT CORP 4.49% of their portfolio | 207.6k $78.5m | Reduced -12.1k |
| ALLIANCEBERNSTEIN L.P. 0.03% of their portfolio | 204.1k $77.2m | Reduced -2.5k |
| PRINCIPAL FINANCIAL GROUP INC 0.04% of their portfolio | 199.4k $75.4m | Added +3.5k |
| MACQUARIE GROUP LTD 0.09% of their portfolio | 189.7k $71.7m | Added +16.6k |
| Raiffeisen Bank International AG 1.05% of their portfolio | 189.5k $70.9m | Reduced -33.0k |
| Washington Trust Advisors, Inc. 5.76% of their portfolio | 187.6k $70.9m | Reduced -641 |
| ENVESTNET ASSET MANAGEMENT INC 0.02% of their portfolio | 187.3k $70.8m | Reduced -14.5k |
| Vontobel Holding Ltd. 0.23% of their portfolio | 185.6k $70.2m | Reduced -29.7k |
| Korea Investment CORP 0.16% of their portfolio | 185.1k $70.0m | Reduced -57.0k |
| Twin Tree Management, LP 1.73% of their portfolio | 181.2k $68.5m | Added +106.6k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.63% of their portfolio | 179.0k $67.7m | Reduced -20.7k |
| BNP PARIBAS FINANCIAL MARKETS 0.05% of their portfolio | 174.6k $66.0m | Reduced -3.5k |
| Union Bancaire Privee, UBP SA 0.93% of their portfolio | 170.3k $64.1m | Added +12.2k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.27% of their portfolio | 170.1k $64.3m | New |
| AMERICAN CENTURY COMPANIES INC 0.03% of their portfolio | 169.7k $64.2m | Added +7.9k |
| M.D. Sass, LLC 4.95% of their portfolio | 162.8k $61.5m | Reduced -44.6k |
| HighTower Advisors, LLC 0.08% of their portfolio | 161.1k $60.9m | Added +29.9k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.05% of their portfolio | 158.4k $59.9m | Added +9.0k |
| Williams Jones Wealth Management, LLC. 0.68% of their portfolio | 149.8k $56.6m | Added +13.8k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.10% of their portfolio | 148.9k $56.3m | Added +1.9k |
| KAYNE ANDERSON CAPITAL ADVISORS LP 1.27% of their portfolio | 144.3k $54.6m | Reduced -11.2k |