WLDN

SEC source: 0001179110-20-007155 · edgar.xml · derivative · entry 7

Brisbin Thomas Donald · CIK 0001395188 · Director · Chief Executive Officer · Chairman of the Board

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,122

Underlying: Common Stock · 19,878 shares

Expires 2020-08-12

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: Stock options granted under the Willdan Group, Inc. Amended and Restated 2008 Performance Incentive Plan, which vested in three equal installments on each of August 12, 2011, August 12, 2012 and August 12, 2013.

SEC source: 0001179110-20-007155 · edgar.xml · nonDerivative · entry 2

Brisbin Thomas Donald · CIK 0001395188 · Director · Chief Executive Officer · Chairman of the Board

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 227,300

F1 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $27.30 to $28.16, inclusive. The reporting person undertakes to provide to Willdan Group, Inc., any security holder of Willdan Group, 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 footnotes (1), (2) and (3).

SEC source: 0001179110-20-007155 · edgar.xml · nonDerivative · entry 1

Brisbin Thomas Donald · CIK 0001395188 · Director · Chief Executive Officer · Chairman of the Board

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 238,337

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001179110-20-006320 · edgar.xml · nonDerivative · entry 1

Shahidehpour Mohammad · CIK 0001640436 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,200

F1 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $22.49 to $22.57, inclusive. The reporting person undertakes to provide to Willdan Group, Inc., any security holder of Willdan Group, 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 above.

F2 · balance_after: Includes (i) 491 shares of restricted stock that vest on June 8, 2020, (ii) 1,657 shares of restricted stock that vest in two substantially equal installments on each of June 13, 2020 and June 13, 2021 and (iii) 2,168 shares of restricted stock that vest in two substantially equal installments on each of June 13, 2020 and June 13, 2021.

SEC source: 0001179110-20-003997 · edgar.xml · derivative · entry 2

Chow Daniel · CIK 0001452377 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,000 shares

Expires 2020-08-12

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Stock options granted under the Willdan Group, Inc. Amended and Restated 2008 Performance Incentive Plan, which vested in three equal installments on each of August 12, 2011, August 12, 2012 and August 12, 2013.

SEC source: 0001179110-20-003997 · edgar.xml · nonDerivative · entry 1

Chow Daniel · CIK 0001452377 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,744

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 889 shares of restricted stock that vest on October 31, 2020.

SEC source: 0001179110-20-003692 · edgar.xml · nonDerivative · entry 1

COY DEBRA · CIK 0001733776 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,451

F1 · balance_after: Includes 4,357 shares of restricted stock that vest in two substantially equal installments on each of June 13, 2020 and June 13, 2021.

SEC source: 0001179110-20-003576 · edgar.xml · nonDerivative · entry 6

BIEBER MICHAEL A · CIK 0001270606 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,344

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.34 to $25.43 inclusive.

F2 · balance_after: Includes an aggregate of 711 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 430 shares on June 30, 2019 and 281 shares on December 31, 2019.

SEC source: 0001179110-20-003576 · edgar.xml · nonDerivative · entry 5

BIEBER MICHAEL A · CIK 0001270606 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,962

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.24 to $25.07 inclusive.

F2 · balance_after: Includes an aggregate of 711 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 430 shares on June 30, 2019 and 281 shares on December 31, 2019.

SEC source: 0001179110-20-003576 · edgar.xml · nonDerivative · entry 4

BIEBER MICHAEL A · CIK 0001270606 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,356

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.01 to $28.13 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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 footnotes (5), (6) and (7).

F2 · balance_after: Includes an aggregate of 711 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 430 shares on June 30, 2019 and 281 shares on December 31, 2019.

SEC source: 0001179110-20-003573 · edgar.xml · nonDerivative · entry 3

McLaughlin Stacy B. · CIK 0001601038 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,956

F4 · shares: Represents shares of the Issuer's Common Stock withheld for tax withholding purposes in connection with the vesting of restricted stock on March 8, 2020, which restricted stock was granted on March 8, 2017.

F2 · balance_after: Includes an aggregate of 706 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 366 shares on June 30, 2019 and 340 shares on December 31, 2019.

SEC source: 0001179110-20-003576 · edgar.xml · nonDerivative · entry 3

BIEBER MICHAEL A · CIK 0001270606 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,332

F4 · shares: Represents shares of the Issuer's Common Stock withheld for tax withholding purposes in connection with the vesting of restricted stock on March 8, 2020, which restricted stock was granted on March 8, 2017.

F2 · balance_after: Includes an aggregate of 711 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 430 shares on June 30, 2019 and 281 shares on December 31, 2019.

SEC source: 0001179110-20-003572 · edgar.xml · nonDerivative · entry 3

WHITELAW PAUL MILTON · CIK 0001733724 · SVP, Business Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,769

F4 · shares: Represents shares of the Issuer's Common Stock withheld for tax withholding purposes in connection with the vesting of restricted stock on March 8, 2020, which restricted stock was granted on March 8, 2017.

F2 · balance_after: Includes (i) 444 shares of restricted stock that vest on October 31, 2020 and (ii) an aggregate of 272 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 128 shares on June 30, 2019 and 144 shares on December 31, 2019.

SEC source: 0001179110-20-003573 · edgar.xml · nonDerivative · entry 2

McLaughlin Stacy B. · CIK 0001601038 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,154

F3 · shares: Represents shares of the Issuer's Common Stock withheld for tax withholding purposes in connection with the vesting of the performance-based restricted stock units referenced in footnote (1).

F2 · balance_after: Includes an aggregate of 706 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 366 shares on June 30, 2019 and 340 shares on December 31, 2019.

SEC source: 0001179110-20-003571 · edgar.xml · nonDerivative · entry 2

Chow Daniel · CIK 0001452377 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,744

F3 · shares: Represents shares of the Issuer's Common Stock withheld for tax withholding purposes in connection with the vesting of the performance-based restricted stock units referenced in footnote (1).

F2 · balance_after: Includes 889 shares of restricted stock that vest on October 31, 2020.

SEC source: 0001179110-20-003576 · edgar.xml · nonDerivative · entry 2

BIEBER MICHAEL A · CIK 0001270606 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,926

F3 · shares: Represents shares of the Issuer's Common Stock withheld for tax withholding purposes in connection with the vesting of the performance-based restricted stock units referenced in footnote (1).

F2 · balance_after: Includes an aggregate of 711 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 430 shares on June 30, 2019 and 281 shares on December 31, 2019.

SEC source: 0001179110-20-003572 · edgar.xml · nonDerivative · entry 2

WHITELAW PAUL MILTON · CIK 0001733724 · SVP, Business Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,926

F3 · shares: Represents shares of the Issuer's Common Stock withheld for tax withholding purposes in connection with the vesting of the performance-based restricted stock units referenced in footnote (1).

F2 · balance_after: Includes (i) 444 shares of restricted stock that vest on October 31, 2020 and (ii) an aggregate of 272 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 128 shares on June 30, 2019 and 144 shares on December 31, 2019.

SEC source: 0001179110-20-003575 · edgar.xml · nonDerivative · entry 2

Brisbin Thomas Donald · CIK 0001395188 · Director · Chief Executive Officer · Chairman of the Board

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 218,459

F3 · shares: Represents shares of the Issuer's Common Stock withheld for tax withholding purposes in connection with the vesting of the performance-based restricted stock units referenced in footnote (1).

F2 · balance_after: Includes an aggregate of 711 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 430 shares on June 30, 2019 and 281 shares on December 31, 2019.

SEC source: 0001179110-20-003570 · edgar.xml · nonDerivative · entry 2

CHEN MICAH · CIK 0001733678 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,260

F2 · shares: Represents shares of the Issuer's Common Stock withheld for tax withholding purposes in connection with the vesting of the performance-based restricted stock units referenced in footnote (1).

F3 · balance_after: Includes 281 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan on December 31, 2019.

SEC source: 0001179110-20-003573 · edgar.xml · nonDerivative · entry 1

McLaughlin Stacy B. · CIK 0001601038 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,341

F1 · shares: Represents performance-based restricted stock units previously granted to the Reporting Person by the Issuer on March 6, 2018. The performance conditions applicable to the award were determined to have been satisfied by the Issuer's Compensation Committee on March 2, 2020, resulting in the immediate vesting of the restricted stock units as to 7,010 shares of Common Stock.

F2 · balance_after: Includes an aggregate of 706 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 366 shares on June 30, 2019 and 340 shares on December 31, 2019.

SEC source: 0001179110-20-003571 · edgar.xml · nonDerivative · entry 1

Chow Daniel · CIK 0001452377 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,873

F1 · shares: Represents performance-based restricted stock units previously granted to the Reporting Person by the Issuer on March 6, 2018. The performance conditions applicable to the award were determined to have been satisfied by the Issuer's Compensation Committee on March 2, 2020, resulting in the immediate vesting of the restricted stock units as to 8,760 shares of Common Stock.

F2 · balance_after: Includes 889 shares of restricted stock that vest on October 31, 2020.

SEC source: 0001179110-20-003576 · edgar.xml · nonDerivative · entry 1

BIEBER MICHAEL A · CIK 0001270606 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,080

F1 · shares: Represents performance-based restricted stock units previously granted to the Reporting Person by the Issuer on March 6, 2018. The performance conditions applicable to the award were determined to have been satisfied by the Issuer's Compensation Committee on March 2, 2020, resulting in the immediate vesting of the restricted stock units as to 33,300 shares of Common Stock.

F2 · balance_after: Includes an aggregate of 711 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 430 shares on June 30, 2019 and 281 shares on December 31, 2019.

SEC source: 0001179110-20-003572 · edgar.xml · nonDerivative · entry 1

WHITELAW PAUL MILTON · CIK 0001733724 · SVP, Business Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,471

F1 · shares: Represents performance-based restricted stock units previously granted to the Reporting Person by the Issuer on March 6, 2018. The performance conditions applicable to the award were determined to have been satisfied by the Issuer's Compensation Committee on March 2, 2020, resulting in the immediate vesting of the restricted stock units as to 7,010 shares of Common Stock.

F2 · balance_after: Includes (i) 444 shares of restricted stock that vest on October 31, 2020 and (ii) an aggregate of 272 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 128 shares on June 30, 2019 and 144 shares on December 31, 2019.

SEC source: 0001179110-20-003575 · edgar.xml · nonDerivative · entry 1

Brisbin Thomas Donald · CIK 0001395188 · Director · Chief Executive Officer · Chairman of the Board

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 252,554

F1 · shares: Represents performance-based restricted stock units previously granted to the Reporting Person by the Issuer on March 6, 2018. The performance conditions applicable to the award were determined to have been satisfied by the Issuer's Compensation Committee on March 2, 2020, resulting in the immediate vesting of the restricted stock units as to 49,070 shares of Common Stock.

F2 · balance_after: Includes an aggregate of 711 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 430 shares on June 30, 2019 and 281 shares on December 31, 2019.

SEC source: 0001179110-20-003570 · edgar.xml · nonDerivative · entry 1

CHEN MICAH · CIK 0001733678 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,791

F1 · shares: Represents performance-based restricted stock units previously granted to the Reporting Person by the Issuer on March 6, 2018. The performance conditions applicable to the award were determined to have been satisfied by the Issuer's Compensation Committee on March 2, 2020, resulting in the immediate vesting of the restricted stock units as to 7,010 shares of Common Stock.

F3 · balance_after: Includes 281 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan on December 31, 2019.

SEC source: 0001179110-20-000025 · edgar.xml · nonDerivative · entry 2

Chow Daniel · CIK 0001452377 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,110

F2 · balance_after: Includes (i) 889 shares of restricted stock that vest on March 8, 2020 and (ii) 889 shares of restricted stock that vest on October 31, 2020.

SEC source: 0001179110-20-000025 · edgar.xml · nonDerivative · entry 1

Chow Daniel · CIK 0001452377 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,110

F1 · balance_after: Represents shares of the Issuer's Common Stock withheld for tax withholding purposes in connection with the vesting of restricted stock on October 31, 2019, which restricted stock was granted on October 31, 2017.

SEC source: 0001179110-20-000668 · edgar.xml · nonDerivative · entry 1

WHITELAW PAUL MILTON · CIK 0001733724 · SVP, Business Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,189

F1 · shares: Represents shares of the Issuer's Common Stock withheld for tax withholding purposes in connection with the vesting of restricted stock on October 31, 2019, which restricted stock was granted on October 21, 2017.

F2 · balance_after: Includes (i) 444 shares of restricted stock that vest on March 8, 2020, (ii) 444 shares of restricted stock that vest on October 31, 2020 and (iii) an aggregate of 1,164 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 225 shares on December 31, 2016, 229 shares on June 30, 2017, 225 shares on December 31, 2017, 355 shares on June 30, 2018 and 130 shares on December 31, 2018.

SEC source: 0001179110-19-008070 · edgar.xml · derivative · entry 3

RENKEN KEITH · CIK 0001251079 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 5,000 shares

Expires 2021-06-06

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001179110-19-008070 · edgar.xml · nonDerivative · entry 1

RENKEN KEITH · CIK 0001251079 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,310

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes (i) 491 shares of restricted stock that vest on June 8, 2020, (ii) 1,657 shares of restricted stock that vest in two substantially equal installments on each of June 13, 2020 and June 13, 2021 and (iii) 2,168 shares of restricted stock that vest in two substantially equal installments on each of June 13, 2020 and June 13, 2021.

SEC source: 0001179110-19-007767 · edgar.xml · nonDerivative · entry 1

Cohen Steven A · CIK 0001640413 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,310

F1 · shares: The shares of restricted stock vest in two equal installments on each of June 13, 2020 and June 13, 2021.

F2 · balance_after: Includes 1,657 shares of restricted stock that vest in two substantially equal installments on each of June 13, 2020 and June 13, 2021.

SEC source: 0001179110-19-007766 · edgar.xml · nonDerivative · entry 1

Shahidehpour Mohammad · CIK 0001640436 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,310

F1 · shares: The shares of restricted stock vest in two equal installments on each of June 13, 2020 and June 13, 2021.

F2 · balance_after: Includes 1,657 shares of restricted stock that vest in two substantially equal installments on each of June 13, 2020 and June 13, 2021.

SEC source: 0001179110-19-007765 · edgar.xml · nonDerivative · entry 1

McEachern Douglas James · CIK 0001463193 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,810

F1 · shares: The shares of restricted stock vest in two equal installments on each of June 13, 2020 and June 13, 2021.

F2 · balance_after: Includes (i) 491 shares of restricted stock that vest on June 8, 2020 and (ii) 1,657 shares of restricted stock that vest in two substantially equal installments on each of June 13, 2020 and June 13, 2021.

SEC source: 0001179110-19-007763 · edgar.xml · nonDerivative · entry 1

RENKEN KEITH · CIK 0001251079 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,310

F1 · shares: The shares of restricted stock vest in two equal installments on each of June 13, 2020 and June 13, 2021

F2 · balance_after: Includes (i) 491 shares of restricted stock that vest on June 8, 2020 and (ii) 1,657 shares of restricted stock that vest in two substantially equal installments on each of June 13, 2020 and June 13, 2021.

SEC source: 0001179110-19-007761 · edgar.xml · nonDerivative · entry 1

McGinn Dennis V · CIK 0001701806 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,589

F1 · shares: The shares of restricted stock vest in two equal installments on each of June 13, 2020 and June 13, 2021.

F2 · balance_after: Includes (i) 491 shares of restricted stock that vest on June 8, 2020 and (ii) 1,965 shares of restricted stock that vest in two substantially equal installments on each of June 13, 2020 and June 13, 2021.

SEC source: 0001179110-19-007769 · edgar.xml · nonDerivative · entry 1

CONWAY ROBERT · CIK 0001774243 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,168

F1 · shares: The shares of restricted stock vest in two equal installments on each of June 13, 2020 and June 13, 2021.

SEC source: 0001179110-19-007768 · edgar.xml · nonDerivative · entry 1

COY DEBRA · CIK 0001733776 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,451

F1 · shares: The shares of restricted stock vest in two equal installments on each of June 13, 2020 and June 13, 2021.

F2 · balance_after: Includes 2,189 shares of restricted stock that vest in two substantially equal installments on each of June 13, 2020 and June 13, 2021.

SEC source: 0001179110-19-007764 · edgar.xml · nonDerivative · entry 1

Holdsworth Raymond W Jr · CIK 0001385711 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,122

F1 · shares: The shares of restricted stock vest in two equal installments on each of June 13, 2020 and June 13, 2021.

F2 · balance_after: Includes (i) 491 shares of restricted stock that vest on June 8, 2020 and (ii) 1,657 shares of restricted stock that vest in two substantially installments on each of June 13, 2020 and June 13, 2021.

SEC source: 0001179110-19-007517 · edgar.xml · nonDerivative · entry 2

WHITELAW PAUL MILTON · CIK 0001733724 · SVP, Business Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,342

F2 · price: The price reported in Column 4 is weighted average price. These shares were sold in multiple transactions at prices ranging from $31.50-$31.57, inclusive. The reporting person undertakes to provide to Willdan Group, Inc., any security holder of Willdan Group, 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 above.

F3 · balance_after: Includes (i) 444 shares of restricted stock that vest on March 8, 2020, (ii) 889 shares of restricted stock that vest in two substantially equal installments on each of October 31, 2019 and October 31, 2020 and (iii) an aggregate of 1,164 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 225 shares on December 31, 2016, 229 shares on June 30, 2017, 225 shares on December 31, 2017, 355 shares on June 30, 2018 and 130 shares on December 31, 2018.

SEC source: 0001179110-19-007517 · edgar.xml · nonDerivative · entry 1

WHITELAW PAUL MILTON · CIK 0001733724 · SVP, Business Development

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,121

F1 · price: The price reported in Column 4 is weighted average price. These shares were sold in multiple transactions at prices ranging from $31.96-$31.975, inclusive. The reporting person undertakes to provide to Willdan Group, Inc., any security holder of Willdan Group, 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 above.

F3 · balance_after: Includes (i) 444 shares of restricted stock that vest on March 8, 2020, (ii) 889 shares of restricted stock that vest in two substantially equal installments on each of October 31, 2019 and October 31, 2020 and (iii) an aggregate of 1,164 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 225 shares on December 31, 2016, 229 shares on June 30, 2017, 225 shares on December 31, 2017, 355 shares on June 30, 2018 and 130 shares on December 31, 2018.

SEC source: 0001179110-19-007356 · edgar.xml · derivative · entry 3

Brisbin Thomas Donald · CIK 0001395188 · Director · Chief Executive Officer · Chairman of the Board

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,663 shares

Expires 2019-06-08

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001179110-19-007356 · edgar.xml · nonDerivative · entry 2

Brisbin Thomas Donald · CIK 0001395188 · Director · Chief Executive Officer · Chairman of the Board

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 202,773

F1 · price: The price reported in Column 4 is weighted average price. These shares were sold in multiple transactions at prices ranging from $32.02-$32.52, inclusive. The reporting person undertakes to provide to Willdan Group, Inc., any security holder of Willdan Group, 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 above.

SEC source: 0001179110-19-007356 · edgar.xml · nonDerivative · entry 1

Brisbin Thomas Donald · CIK 0001395188 · Director · Chief Executive Officer · Chairman of the Board

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 211,474

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001179110-19-006731 · edgar.xml · derivative · entry 6

Brisbin Thomas Donald · CIK 0001395188 · Director · Chief Executive Officer · Chairman of the Board

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 25,666 shares

Expires 2019-06-08

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001179110-19-006731 · edgar.xml · nonDerivative · entry 4

Brisbin Thomas Donald · CIK 0001395188 · Director · Chief Executive Officer · Chairman of the Board

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 194,811

F2 · price: The price reported in Column 4 is weighted average price. These shares were sold in multiple transactions at prices ranging from $35.00-$35.46, inclusive. The reporting person undertakes to provide to Willdan Group, Inc., any security holder of Willdan Group, 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 above.

F1 · balance_after: Includes an aggregate of 3,248 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 1,320 shares on December 31, 2016, 638 shares on June 30, 2017, 337 shares on December 31, 2017, 630 shares on June 30, 2018 and 323 shares on December 31, 2018.

SEC source: 0001179110-19-006731 · edgar.xml · nonDerivative · entry 3

Brisbin Thomas Donald · CIK 0001395188 · Director · Chief Executive Officer · Chairman of the Board

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 220,477

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes an aggregate of 3,248 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 1,320 shares on December 31, 2016, 638 shares on June 30, 2017, 337 shares on December 31, 2017, 630 shares on June 30, 2018 and 323 shares on December 31, 2018.

SEC source: 0001179110-19-006731 · edgar.xml · derivative · entry 5

Brisbin Thomas Donald · CIK 0001395188 · Director · Chief Executive Officer · Chairman of the Board

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,671 shares

Expires 2019-06-08

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001179110-19-006731 · edgar.xml · nonDerivative · entry 2

Brisbin Thomas Donald · CIK 0001395188 · Director · Chief Executive Officer · Chairman of the Board

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 194,811

F1 · balance_after: Includes an aggregate of 3,248 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 1,320 shares on December 31, 2016, 638 shares on June 30, 2017, 337 shares on December 31, 2017, 630 shares on June 30, 2018 and 323 shares on December 31, 2018.

SEC source: 0001179110-19-006731 · edgar.xml · nonDerivative · entry 1

Brisbin Thomas Donald · CIK 0001395188 · Director · Chief Executive Officer · Chairman of the Board

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 202,482

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes an aggregate of 3,248 shares of Common Stock purchased under the Amended and Restated Willdan Group, Inc. 2006 Employee Stock Purchase Plan, including 1,320 shares on December 31, 2016, 638 shares on June 30, 2017, 337 shares on December 31, 2017, 630 shares on June 30, 2018 and 323 shares on December 31, 2018.

SEC source: 0001179110-19-005661 · edgar.xml · nonDerivative · entry 1

Chow Daniel · CIK 0001452377 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,415

F1 · shares: Represents shares of the Issuer's Common Stock withheld for tax withholding purposes in connection with the vesting of restricted stock on May 5, 2019, which restricted stock was granted on May 5, 2016.

F2 · balance_after: Includes (i) 889 shares of restricted stock that vest on March 8, 2020 and (ii) 1,778 shares of restricted stock that vest in two substantially equal installments on each of October 31, 2019 and October 31, 2020.