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person · Reporting owner

GRINDSTAFF NICHOLAS M

Disclosed activity across 3 companies

Tapewire entity
30664
SEC CIK
0001134710

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Orbital Infrastructure Group, Inc.OIG · Entity 117432Chief Financial OfficerSeptember 15, 2022October 17, 2022
QUANTA SERVICES, INC.PWR · Entity 2928VP - Finance and TreasurerMay 10, 2021May 12, 2021
STERLING INFRASTRUCTURE, INC.STRL · Entity 3384Chief Financial Officer (CFO)July 10, 2026July 14, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Orbital Infrastructure Group, Inc.

Report date September 15, 2022 · Filed October 17, 2022

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect296,052 Reported balance After 2022-09-15 transaction · row 1
1 source row

Row 1 · 2022-09-15 · Grant · Acquired 154,106 · Balance 296,052

F1: 250,000 fully vested Restricted stock units were granted and issued net of 95,894 shares withheld for taxes.

F2: Shares were issued as part of employee agreement based on a market price of $0.63.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect500,000 Reported balance After 2022-09-15 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2022-09-15 · Grant · Acquired 500,000 · Balance 500,000

F5: RSU shares convert to common stock on a 1 for 1 basis at the market rate of the common stock on the vesting date.

F6: Price of RSU corresponds to the market price of the common stock, which was $0.63 on 9/15/22.

F3: 250,000 shares will vest on 9/15/23 and 250,000 shares will vest on 9/15/24

F4: RSUs vest and automatically convert to common stock in three tranches, 9/15/22, 9/15/23 and 9/15/24.

Filing footnotes · ownership attribution and instrument terms

F1: 250,000 fully vested Restricted stock units were granted and issued net of 95,894 shares withheld for taxes.

F2: Shares were issued as part of employee agreement based on a market price of $0.63.

F3: 250,000 shares will vest on 9/15/23 and 250,000 shares will vest on 9/15/24

F4: RSUs vest and automatically convert to common stock in three tranches, 9/15/22, 9/15/23 and 9/15/24.

F5: RSU shares convert to common stock on a 1 for 1 basis at the market rate of the common stock on the vesting date.

F6: Price of RSU corresponds to the market price of the common stock, which was $0.63 on 9/15/22.

QUANTA SERVICES, INC.

Report date May 10, 2021 · Filed May 12, 2021

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect31,868 Reported balance After 2021-05-10 transaction · row 1
1 source row

Row 1 · 2021-05-10 · Sale · Disposed 8,454 · Balance 31,868

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $101.03 to $101.40, inclusive. The reporting person undertakes to provide to Quanta Services, Inc., any security holder of Quanta Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Filing footnotes · ownership attribution and instrument terms

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $101.03 to $101.40, inclusive. The reporting person undertakes to provide to Quanta Services, Inc., any security holder of Quanta Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

STERLING INFRASTRUCTURE, INC.

Report date July 10, 2026 · Filed July 14, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect6,037 Reported balance After 2026-07-10 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2026-07-10 · Tax withholding · Disposed 556 · Balance 6,037

F1: These shares were retained by the Company at the election of the Reporting Person pursuant to a procedure approved by the Compensation Committee of the Board of Directors to satisfy the Company's tax withholding requirements (based on the closing price of the Company's common stock on the release date) arising from the release of restrictions as permitted by the plan pursuant to which the restricted stock unit award was made.

F2: Of these shares, 4,735 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances.

Filing footnotes · ownership attribution and instrument terms

F1: These shares were retained by the Company at the election of the Reporting Person pursuant to a procedure approved by the Compensation Committee of the Board of Directors to satisfy the Company's tax withholding requirements (based on the closing price of the Company's common stock on the release date) arising from the release of restrictions as permitted by the plan pursuant to which the restricted stock unit award was made.

F2: Of these shares, 4,735 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
July 10, 2026 Filed Jul 14, 2026 20:03 UTC STERLING INFRASTRUCTURE, INC. STRL · Entity 3384 Tax withholdingCommon Stock 556 $682.29 $379,353.24
Disclosure

SEC source: 0000874238-26-000097 · wk-form4_1784059425.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · Chief Financial Officer (CFO)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,037

F1 · shares: These shares were retained by the Company at the election of the Reporting Person pursuant to a procedure approved by the Compensation Committee of the Board of Directors to satisfy the Company's tax withholding requirements (based on the closing price of the Company's common stock on the release date) arising from the release of restrictions as permitted by the plan pursuant to which the restricted stock unit award was made.

F1 · price: These shares were retained by the Company at the election of the Reporting Person pursuant to a procedure approved by the Compensation Committee of the Board of Directors to satisfy the Company's tax withholding requirements (based on the closing price of the Company's common stock on the release date) arising from the release of restrictions as permitted by the plan pursuant to which the restricted stock unit award was made.

F2 · balance_after: Of these shares, 4,735 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances.

Read SEC document
January 01, 2026 Filed Jan 5, 2026 22:02 UTC STERLING INFRASTRUCTURE, INC. STRL · Entity 3384 GrantCommon Stock 1,029 $0.00 $0.00
Disclosure

SEC source: 0000874238-26-000008 · wk-form4_1767650572.xml · nonDerivative · entry 2

GRINDSTAFF NICHOLAS M · CIK 0001134710 · Chief Financial Officer (CFO)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,593

F3 · shares: Represents the grant of time-vested restricted stock units that will vest in one-third increments on each of December 31, 2026, and the next two anniversaries thereof, provided the service conditions are satisfied.

F4 · balance_after: Of these shares, 6,402 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances.

Read SEC document
December 31, 2025 Filed Jan 5, 2026 22:02 UTC STERLING INFRASTRUCTURE, INC. STRL · Entity 3384 Tax withholdingCommon Stock 61 $306.23 $18,680.03
Disclosure

SEC source: 0000874238-26-000008 · wk-form4_1767650572.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · Chief Financial Officer (CFO)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,564

F1 · shares: These shares were retained by the Company at the election of the Reporting Person pursuant to a procedure approved by the Compensation Committee of the Board of Directors to satisfy the Company's tax withholding requirements (based on the closing price of the Company's common stock on the release date) arising from the release of restrictions as permitted by the plan pursuant to which the restricted stock unit award was made.

F1 · price: These shares were retained by the Company at the election of the Reporting Person pursuant to a procedure approved by the Compensation Committee of the Board of Directors to satisfy the Company's tax withholding requirements (based on the closing price of the Company's common stock on the release date) arising from the release of restrictions as permitted by the plan pursuant to which the restricted stock unit award was made.

F2 · balance_after: The total share ownership includes 65 shares acquired under the Company's 2019 Employee Stock Purchase Plan.

Read SEC document
July 10, 2025 Filed Jul 10, 2025 21:56 UTC STERLING INFRASTRUCTURE, INC. STRL · Entity 3384 GrantCommon Stock 560 $0.00 $0.00
Disclosure

SEC source: 0000874238-25-000108 · wk-form4_1752184554.xml · nonDerivative · entry 2

GRINDSTAFF NICHOLAS M · CIK 0001134710 · Chief Financial Officer (CFO)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,560

F2 · shares: Represents the grant of time-vested restricted stock units that will vest in one-third increments on each of December 31, 2025 and the next two anniversaries thereof, provided the service conditions are satisfied.

Read SEC document
July 10, 2025 Filed Jul 10, 2025 21:56 UTC STERLING INFRASTRUCTURE, INC. STRL · Entity 3384 GrantCommon Stock 5,000 $0.00 $0.00
Disclosure

SEC source: 0000874238-25-000108 · wk-form4_1752184554.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · Chief Financial Officer (CFO)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,000

F1 · shares: Represents the grant of restricted stock units awarded to the Reporting Person in connection with his joining the Issuer. The award will vest in one-third increments on each of July 10, 2026 and the next two anniversaries thereof, providing the service conditions are satisfied.

Read SEC document
September 15, 2022 Filed Oct 17, 2022 20:41 UTC Orbital Infrastructure Group, Inc. OIG · Entity 117432 GrantRestricted Stock Units · Derivative 500,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001437749-22-024260 · rdgdoc.xml · derivative · entry 2

GRINDSTAFF NICHOLAS M · CIK 0001134710 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 500,000

Underlying: Common Stock · 500,000 shares

Expires not disclosed

F5 · derivative.exercise_price: RSU shares convert to common stock on a 1 for 1 basis at the market rate of the common stock on the vesting date.

F6 · price: Price of RSU corresponds to the market price of the common stock, which was $0.63 on 9/15/22.

F3 · derivative.exercise_date: 250,000 shares will vest on 9/15/23 and 250,000 shares will vest on 9/15/24

F4 · derivative.expiration_date: RSUs vest and automatically convert to common stock in three tranches, 9/15/22, 9/15/23 and 9/15/24.

Read SEC document
September 15, 2022 Filed Oct 17, 2022 20:41 UTC Orbital Infrastructure Group, Inc. OIG · Entity 117432 GrantCommon Stock 154,106 Not disclosed Not disclosed
Disclosure

SEC source: 0001437749-22-024260 · rdgdoc.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 296,052

F1 · shares: 250,000 fully vested Restricted stock units were granted and issued net of 95,894 shares withheld for taxes.

F2 · price: Shares were issued as part of employee agreement based on a market price of $0.63.

Read SEC document
May 10, 2021 Filed May 12, 2021 23:04 UTC QUANTA SERVICES, INC. PWR · Entity 2928 SaleCommon Stock 8,454 $101.22 $855,713.88
Disclosure

SEC source: 0001050915-21-000074 · wf-form4_162086066636785.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,868

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $101.03 to $101.40, inclusive. The reporting person undertakes to provide to Quanta Services, Inc., any security holder of Quanta Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Read SEC document
March 26, 2021 Filed Mar 29, 2021 22:05 UTC QUANTA SERVICES, INC. PWR · Entity 2928 Tax withholdingCommon Stock 491 $83.48 $40,988.68
Disclosure

SEC source: 0001050915-21-000063 · wf-form4_161705550320293.xml · nonDerivative · entry 2

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,322

F2 · shares: These shares were withheld to cover taxes associated with the vest of restricted stock units issued under an equity incentive plan of the Company.

Read SEC document
March 25, 2021 Filed Mar 29, 2021 22:05 UTC QUANTA SERVICES, INC. PWR · Entity 2928 GrantCommon Stock 1,400 $0.00 $0.00
Disclosure

SEC source: 0001050915-21-000063 · wf-form4_161705550320293.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,813

F1 · shares: These shares represent restricted stock units that may be settled solely by the issuance of an equal number of shares of common stock of the Company and remain subject to vesting based on the passage of time and continued employment.

Read SEC document
March 03, 2021 Filed Mar 5, 2021 23:58 UTC QUANTA SERVICES, INC. PWR · Entity 2928 Tax withholdingCommon Stock 2,126 $84.21 $179,030.46
Disclosure

SEC source: 0001050915-21-000040 · wf-form4_161498868996633.xml · nonDerivative · entry 2

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,413

F2 · shares: These shares were withheld to cover taxes associated with the vest of performance stock units issued under an equity incentive plan of the Company.

Read SEC document
March 03, 2021 Filed Mar 5, 2021 23:58 UTC QUANTA SERVICES, INC. PWR · Entity 2928 GrantCommon Stock 5,772 $0.00 $0.00
Disclosure

SEC source: 0001050915-21-000040 · wf-form4_161498868996633.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,539

F1 · shares: These shares represent the acquisition of common stock resulting from the vesting of earned performance stock units issued under an equity incentive plan of the Company.

Read SEC document
February 28, 2021 Filed Mar 3, 2021 00:03 UTC QUANTA SERVICES, INC. PWR · Entity 2928 Tax withholdingCommon Stock 399 $83.85 $33,456.15
Disclosure

SEC source: 0001050915-21-000021 · wf-form4_161472978925641.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,767

F1 · shares: These shares were withheld to cover taxes associated with the vest of restricted stock units issued under an equity incentive plan of the Company.

Read SEC document
January 01, 2021 Filed Jan 6, 2021 00:15 UTC QUANTA SERVICES, INC. PWR · Entity 2928 Tax withholdingCommon Stock 2,624 $72.02 $188,980.48
Disclosure

SEC source: 0001050915-21-000005 · wf-form4_160989209292480.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,166

F1 · shares: These shares were withheld to cover taxes associated with the settlement of restricted stock units and performance stock units that were previously deferred by the reporting person pursuant to the terms of a nonqualified deferred compensation plan maintained by the Company.

Read SEC document
November 02, 2020 Filed Nov 4, 2020 22:14 UTC QUANTA SERVICES, INC. PWR · Entity 2928 SaleCommon Stock 8,256 $64.53 $532,756.38
Disclosure

SEC source: 0001050915-20-000119 · wf-form4_160452806303680.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,790

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.52 to $64.59, inclusive. The reporting person undertakes to provide to Quanta Services, Inc., any security holder of Quanta Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Read SEC document
March 26, 2020 Filed Mar 30, 2020 21:29 UTC QUANTA SERVICES, INC. PWR · Entity 2928 GrantCommon Stock 3,744 $0.00 $0.00
Disclosure

SEC source: 0001050915-20-000063 · wf-form4_158560376421117.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,046

F1 · shares: These shares represent restricted stock units that may be settled solely by the issuance of an equal number of shares of common stock of the Company and remain subject to vesting based on the passage of time and continued employment.

Read SEC document
March 04, 2020 Filed Mar 6, 2020 22:32 UTC QUANTA SERVICES, INC. PWR · Entity 2928 Tax withholdingCommon Stock 1,753 $38.56 $67,595.68
Disclosure

SEC source: 0001050915-20-000052 · wf-form4_158353393045969.xml · nonDerivative · entry 2

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,302

F2 · shares: These shares were withheld to cover taxes associated with the vest of performance units issued under the Company's 2011 Omnibus Equity Incentive Plan.

Read SEC document
March 04, 2020 Filed Mar 6, 2020 22:32 UTC QUANTA SERVICES, INC. PWR · Entity 2928 GrantCommon Stock 5,446 $0.00 $0.00
Disclosure

SEC source: 0001050915-20-000052 · wf-form4_158353393045969.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,055

F1 · shares: These shares represent the acquisition of common stock resulting from the vesting of earned performance units issued under the Company's 2011 Omnibus Equity Incentive Plan.

Read SEC document
February 28, 2020 Filed Mar 4, 2020 00:06 UTC QUANTA SERVICES, INC. PWR · Entity 2928 Tax withholdingCommon Stock 470 $39.42 $18,527.40
Disclosure

SEC source: 0001050915-20-000036 · wf-form4_158328034298975.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,609

F1 · shares: These shares were withheld to cover taxes associated with the vest of restricted stock units issued under the Company's 2011 Omnibus Equity Incentive Plan.

Read SEC document
January 01, 2020 Filed Jan 3, 2020 22:11 UTC QUANTA SERVICES, INC. PWR · Entity 2928 Tax withholdingCommon Stock 1,773 $40.71 $72,178.83
Disclosure

SEC source: 0001050915-20-000006 · wf-form4_157808947771486.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,079

F1 · shares: These shares were withheld to cover taxes associated with the settlement of restricted stock units and performance stock units that were previously deferred by the reporting person pursuant to the terms of a nonqualified deferred compensation plan maintained by the Company.

Read SEC document
March 08, 2019 Filed Mar 11, 2019 22:39 UTC QUANTA SERVICES, INC. PWR · Entity 2928 GrantCommon Stock 2,862 $0.00 $0.00
Disclosure

SEC source: 0001050915-19-000034 · wf-form4_155234394472349.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,852

F1 · shares: These shares represent restricted stock units that may be settled solely by the issuance of an equal number of shares of common stock of the Company and remain subject to vesting based on the passage of time and continued employment.

Read SEC document
February 28, 2019 Filed Mar 4, 2019 23:47 UTC QUANTA SERVICES, INC. PWR · Entity 2928 Tax withholdingCommon Stock 358 $35.97 $12,877.26
Disclosure

SEC source: 0001050915-19-000028 · wf-form4_155174324420540.xml · nonDerivative · entry 2

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,990

F2 · shares: These shares were withheld to cover taxes associated with the vest of performance units and restricted stock units issued under the Company's 2011 Omnibus Equity Incentive Plan.

Read SEC document
February 28, 2019 Filed Mar 4, 2019 23:47 UTC QUANTA SERVICES, INC. PWR · Entity 2928 GrantCommon Stock 6,964 $0.00 $0.00
Disclosure

SEC source: 0001050915-19-000028 · wf-form4_155174324420540.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,348

F1 · shares: These shares represent the acquisition of common stock resulting from the vesting of earned performance units issued under the Company's 2011 Omnibus Equity Incentive Plan.

Read SEC document
February 28, 2018 Filed Mar 2, 2018 22:58 UTC QUANTA SERVICES, INC. PWR · Entity 2928 Tax withholdingCommon Stock 259 $35.04 $9,075.36
Disclosure

SEC source: 0001050915-18-000017 · wf-form4_152003147894238.xml · nonDerivative · entry 3

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,384

F3 · shares: These shares were withheld to cover taxes associated with the vest of performance units and restricted stock units issued under the Company's 2011 Omnibus Equity Incentive Plan.

Read SEC document
February 28, 2018 Filed Mar 2, 2018 22:58 UTC QUANTA SERVICES, INC. PWR · Entity 2928 GrantCommon Stock 2,886 $0.00 $0.00
Disclosure

SEC source: 0001050915-18-000017 · wf-form4_152003147894238.xml · nonDerivative · entry 2

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,643

F2 · shares: These shares represent restricted stock units that may be settled solely by the issuance of an equal number of shares of common stock of the Company and remain subject to vesting based on the passage of time and continued employment.

Read SEC document
February 28, 2018 Filed Mar 2, 2018 22:58 UTC QUANTA SERVICES, INC. PWR · Entity 2928 GrantCommon Stock 3,484 $0.00 $0.00
Disclosure

SEC source: 0001050915-18-000017 · wf-form4_152003147894238.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,757

F1 · shares: These shares represent the acquisition of common stock resulting from the vesting of earned performance units issued under the Company's 2011 Omnibus Equity Incentive Plan.

Read SEC document
March 22, 2017 Filed Mar 24, 2017 21:44 UTC QUANTA SERVICES, INC. PWR · Entity 2928 GrantCommon Stock 2,723 $0.00 $0.00
Disclosure

SEC source: 0001134710-17-000007 · wf-form4_149039183323469.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,273

Read SEC document
February 28, 2017 Filed Mar 2, 2017 23:12 UTC QUANTA SERVICES, INC. PWR · Entity 2928 Tax withholdingCommon Stock 36 $38.13 $1,372.68
Disclosure

SEC source: 0001134710-17-000005 · wf-form4_148849631291855.xml · nonDerivative · entry 4

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,550

F1 · shares: These shares were withheld to cover taxes associated with the vest of restricted stock units issued under the Company's 2011 Omnibus Equity Incentive Plan.

Read SEC document
February 28, 2017 Filed Mar 2, 2017 23:12 UTC QUANTA SERVICES, INC. PWR · Entity 2928 Tax withholdingCommon Stock 28 $38.13 $1,067.64
Disclosure

SEC source: 0001134710-17-000005 · wf-form4_148849631291855.xml · nonDerivative · entry 3

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,586

F1 · shares: These shares were withheld to cover taxes associated with the vest of restricted stock units issued under the Company's 2011 Omnibus Equity Incentive Plan.

Read SEC document
February 28, 2017 Filed Mar 2, 2017 23:12 UTC QUANTA SERVICES, INC. PWR · Entity 2928 Tax withholdingCommon Stock 18 $38.13 $686.34
Disclosure

SEC source: 0001134710-17-000005 · wf-form4_148849631291855.xml · nonDerivative · entry 2

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,614

F1 · shares: These shares were withheld to cover taxes associated with the vest of restricted stock units issued under the Company's 2011 Omnibus Equity Incentive Plan.

Read SEC document
February 28, 2017 Filed Mar 2, 2017 23:12 UTC QUANTA SERVICES, INC. PWR · Entity 2928 Tax withholdingCommon Stock 27 $38.13 $1,029.51
Disclosure

SEC source: 0001134710-17-000005 · wf-form4_148849631291855.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,632

F1 · shares: These shares were withheld to cover taxes associated with the vest of restricted stock units issued under the Company's 2011 Omnibus Equity Incentive Plan.

Read SEC document
February 27, 2017 Filed Mar 1, 2017 23:34 UTC QUANTA SERVICES, INC. PWR · Entity 2928 SaleCommon Stock 27,000 $38.20 $1,031,454.00
Disclosure

SEC source: 0001134710-17-000004 · wf-form4_148841124439833.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,659

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $38.18 to $38.23, inclusive. The reporting person undertakes to provide to Quanta Services, Inc., any security holder of Quanta Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Read SEC document
February 20, 2017 Filed Feb 22, 2017 23:34 UTC QUANTA SERVICES, INC. PWR · Entity 2928 Tax withholdingCommon Stock 714 $37.24 $26,589.36
Disclosure

SEC source: 0001134710-17-000002 · wf-form4_148780646184429.xml · nonDerivative · entry 2

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,659

F2 · shares: These shares were withheld to cover taxes associated with the vest of performance units issued under the Company's 2011 Omnibus Equity Incentive Plan.

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February 20, 2017 Filed Feb 22, 2017 23:34 UTC QUANTA SERVICES, INC. PWR · Entity 2928 GrantCommon Stock 2,185 $0.00 $0.00
Disclosure

SEC source: 0001134710-17-000002 · wf-form4_148780646184429.xml · nonDerivative · entry 1

GRINDSTAFF NICHOLAS M · CIK 0001134710 · VP - Finance and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,373

F1 · shares: These shares represent the acquisition of common stock resulting from the vesting of earned performance units issued under the Company's 2011 Omnibus Equity Incentive Plan.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.