LMB

SEC source: 0001628280-22-014889 · wf-form4_165299311302015.xml · nonDerivative · entry 1

McCann Michael M · CIK 0001760470 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 68,733

F1 · price: The price reported represents a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.87 to $6.31 per share. The Reporting Persons undertake to provide to the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

SEC source: 0001628280-22-014760 · wf-form4_165290484299144.xml · nonDerivative · entry 2

McCann Michael M · CIK 0001760470 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,833

F2 · price: The price reported represents a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.98 to $6.21 per share. The Reporting Persons undertake to provide to the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

SEC source: 0001628280-22-014760 · wf-form4_165290484299144.xml · nonDerivative · entry 1

McCann Michael M · CIK 0001760470 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,445

F1 · price: The price reported represents a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.82 to $5.86 per share. The Reporting Persons undertake to provide to the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

SEC source: 0001628280-22-008220 · wf-form4_164908860850465.xml · nonDerivative · entry 1

McCann Michael M · CIK 0001760470 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,945

F1 · price: The price reported represents a weighted average price. These shares were purchased in multiple transactions at prices ranging from $7.08 to $7.21 per share. The Reporting Persons undertake to provide to the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

SEC source: 0001628280-22-007841 · wf-form4_164866586061199.xml · nonDerivative · entry 1

Young Norbert W. · CIK 0001679800 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,699

SEC source: 0001628280-22-007574 · wf-form4_164857713405728.xml · nonDerivative · entry 1

Krzeminski Laurel J · CIK 0001493187 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,599

F1 · price: The price reported represents a weighted average price. These shares were purchased in multiple transactions at prices ranging from $6.80 to $6.85 per share. The Reporting Persons undertake to provide to the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

SEC source: 0001628280-22-007843 · wf-form4_164866608264142.xml · nonDerivative · entry 1

Brooks Jayme L. · CIK 0001447591 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By The Brooks Family Trust

Disclosed balance after: 2,170

F1 · ownership.nature: Shares held by the Brooks Family Trust. The reporting person and her spouse are trustees of the Brooks Family Trust. The Reporting Person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein, and the inclusion of these securities in this report will not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.

SEC source: 0001628280-22-007441 · wf-form4_164849810889752.xml · nonDerivative · entry 1

Bacon Charles A. III · CIK 0001679798 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 440,275

SEC source: 0001104659-22-037505 · tm2210307-1_4seq1.xml · nonDerivative · entry 2

Horowitz Joshua · CIK 0001612424 · Director

Palm Management (US) LLC · CIK 0001726497 · Director

Palm Global Small Cap Master Fund LP · CIK 0001726444 · Director

Palmer Bradley C · CIK 0001726523 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Palm Global Small Cap Master Fund LP

Disclosed balance after: 243,520

F5 · price: The price reported represents a weighted average price. These shares were purchased in multiple transactions at prices ranging from $6.70 to $6.94 per share. The Reporting Persons undertake to provide to the Company, any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

F1 · balance_after: The reported shares are owned directly by Palm Global Small Cap Master Fund LP (the "Fund"). Palm Management (US) LLC ("Palm Management"), as the investment manager of the Fund, may be deemed to be a beneficial owner of the shares of common stock disclosed as directly owned by the Fund. Due to his positions with the Fund and Palm Management, Mr. Joshua S. Horowitz may be deemed to be a beneficial owner of the shares of common stock disclosed as directly owned by the Fund. Due to his position with Palm Management, Mr. Bradley C. Palmer may be deemed to be a beneficial owner of the shares of common stock disclosed as directly owned by the Fund. Messrs. Palmer and Horowitz disclaim beneficial ownership of these shares except to the extent of their respective pecuniary interest therein.

SEC source: 0001104659-22-037505 · tm2210307-1_4seq1.xml · nonDerivative · entry 1

Horowitz Joshua · CIK 0001612424 · Director

Palm Management (US) LLC · CIK 0001726497 · Director

Palm Global Small Cap Master Fund LP · CIK 0001726444 · Director

Palmer Bradley C · CIK 0001726523 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Palm Global Small Cap Master Fund LP

Disclosed balance after: 234,631

F1 · balance_after: The reported shares are owned directly by Palm Global Small Cap Master Fund LP (the "Fund"). Palm Management (US) LLC ("Palm Management"), as the investment manager of the Fund, may be deemed to be a beneficial owner of the shares of common stock disclosed as directly owned by the Fund. Due to his positions with the Fund and Palm Management, Mr. Joshua S. Horowitz may be deemed to be a beneficial owner of the shares of common stock disclosed as directly owned by the Fund. Due to his position with Palm Management, Mr. Bradley C. Palmer may be deemed to be a beneficial owner of the shares of common stock disclosed as directly owned by the Fund. Messrs. Palmer and Horowitz disclaim beneficial ownership of these shares except to the extent of their respective pecuniary interest therein.

SEC source: 0001628280-22-000230 · wf-form4_164133693939305.xml · derivative · entry 4

ALVARADO LINDA G · CIK 0001122788 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,010

Underlying: Common Stock · 8,876 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Limbach Holdings, Inc. (the "Company") common stock, exempt under Rule 16b-3.

F3 · derivative.exercise_date: This award of RSUs was granted on 01/01/2022. The RSUs are scheduled to cliff vest on January 1, 2023.

F3 · derivative.expiration_date: This award of RSUs was granted on 01/01/2022. The RSUs are scheduled to cliff vest on January 1, 2023.

SEC source: 0001628280-22-000230 · wf-form4_164133693939305.xml · derivative · entry 3

ALVARADO LINDA G · CIK 0001122788 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,134

Underlying: Common Stock · 374 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Limbach Holdings, Inc. (the "Company") common stock, exempt under Rule 16b-3.

F2 · derivative.exercise_date: This award of RSUs was granted on 09/1/2021. The award is subject to service-based vesting conditions and vests 14.92% on January 1, 2022 and 42.54% on each of January 1, 2023 and January 1, 2024, subject to continued service through the applicable vesting date.

F2 · derivative.expiration_date: This award of RSUs was granted on 09/1/2021. The award is subject to service-based vesting conditions and vests 14.92% on January 1, 2022 and 42.54% on each of January 1, 2023 and January 1, 2024, subject to continued service through the applicable vesting date.

SEC source: 0001628280-22-000230 · wf-form4_164133693939305.xml · nonDerivative · entry 2

ALVARADO LINDA G · CIK 0001122788 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,473

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: 0001628280-22-000224 · wf-form4_164133678765837.xml · derivative · entry 10

McCann Michael M · CIK 0001760470 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,081

Underlying: Common Stock · 16,469 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Company's common stock, exempt under Rule 16b-3.

F7 · derivative.exercise_date: This award of RSUs was granted on 1/1/2022. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2023, January 1, 2024 and January 1, 2025, subject to continued employment through the applicable vesting date. The amounts reported above (related to this grant) do not include performance-based RSUs, if any, that may be earned by the reporting person but for which the Compensation Committee has not yet determined the achievement of the applicable performance goals. Any such RSU's will be reported on a Form 4 within two business days of the date of such determination.

F7 · derivative.expiration_date: This award of RSUs was granted on 1/1/2022. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2023, January 1, 2024 and January 1, 2025, subject to continued employment through the applicable vesting date. The amounts reported above (related to this grant) do not include performance-based RSUs, if any, that may be earned by the reporting person but for which the Compensation Committee has not yet determined the achievement of the applicable performance goals. Any such RSU's will be reported on a Form 4 within two business days of the date of such determination.

SEC source: 0001628280-22-000224 · wf-form4_164133678765837.xml · derivative · entry 9

McCann Michael M · CIK 0001760470 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,612

Underlying: Common Stock · 3,889 shares

Expires not disclosed

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_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Company's common stock, exempt under Rule 16b-3.

F6 · derivative.exercise_date: This award of RSUs was granted on 1/1/2021. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2022, January 1, 2023 and January 1, 2024, subject to continued employment through the applicable vesting date. The amounts reported above (related to this grant) do not include performance-based RSUs, if any, that may be earned by the reporting person but for which the Compensation Committee has not yet determined the achievement of the applicable performance goals. Any such RSU's will be reported on a Form 4 within two business days of the date of such determination.

F6 · derivative.expiration_date: This award of RSUs was granted on 1/1/2021. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2022, January 1, 2023 and January 1, 2024, subject to continued employment through the applicable vesting date. The amounts reported above (related to this grant) do not include performance-based RSUs, if any, that may be earned by the reporting person but for which the Compensation Committee has not yet determined the achievement of the applicable performance goals. Any such RSU's will be reported on a Form 4 within two business days of the date of such determination.

SEC source: 0001628280-22-000224 · wf-form4_164133678765837.xml · derivative · entry 8

McCann Michael M · CIK 0001760470 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,501

Underlying: Common Stock · 2,500 shares

Expires not disclosed

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_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Company's common stock, exempt under Rule 16b-3.

F5 · derivative.exercise_date: This award of RSUs was granted on 05/11/2020. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2021, January 1, 2022 and January 1, 2023, subject to continued employment through the applicable vesting date.

F5 · derivative.expiration_date: This award of RSUs was granted on 05/11/2020. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2021, January 1, 2022 and January 1, 2023, subject to continued employment through the applicable vesting date.

SEC source: 0001628280-22-000224 · wf-form4_164133678765837.xml · derivative · entry 7

McCann Michael M · CIK 0001760470 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,001

Underlying: Common Stock · 3,333 shares

Expires not disclosed

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_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Company's common stock, exempt under Rule 16b-3.

F4 · derivative.exercise_date: This award of RSUs was granted on 01/01/2020. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2021, January 1, 2022 and January 1, 2023, subject to continued employment through the applicable vesting date. The amounts reported above (related to this grant) do not include performance-based RSUs, if any, that may be earned by the reporting person but for which the Compensation Committee has not yet determined the achievement of the applicable performance goals. Any such RSUs will be reported on a Form 4 within two business days of the date of such determination.

F4 · derivative.expiration_date: This award of RSUs was granted on 01/01/2020. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2021, January 1, 2022 and January 1, 2023, subject to continued employment through the applicable vesting date. The amounts reported above (related to this grant) do not include performance-based RSUs, if any, that may be earned by the reporting person but for which the Compensation Committee has not yet determined the achievement of the applicable performance goals. Any such RSUs will be reported on a Form 4 within two business days of the date of such determination.

SEC source: 0001628280-22-000224 · wf-form4_164133678765837.xml · derivative · entry 6

McCann Michael M · CIK 0001760470 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,334

Underlying: Common Stock · 4,000 shares

Expires not disclosed

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_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Company's common stock, exempt under Rule 16b-3.

F3 · derivative.exercise_date: This award of RSUs was granted on 02/27/2019. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2020, January 1, 2021 and January 1, 2022, subject to continued service through the applicable vesting date.

F3 · derivative.expiration_date: This award of RSUs was granted on 02/27/2019. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2020, January 1, 2021 and January 1, 2022, subject to continued service through the applicable vesting date.

SEC source: 0001628280-22-000224 · wf-form4_164133678765837.xml · nonDerivative · entry 5

McCann Michael M · CIK 0001760470 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 63,400

F1 · balance_after: Reflect the withholding of 3,413 shares by Limbach Holdings, Inc. (the "Company") to satisfy tax withholding requirements not previously reported. Such transaction was exempt from Section 16(b) pursuant to Rule 16b-3.

SEC source: 0001628280-22-000224 · wf-form4_164133678765837.xml · nonDerivative · entry 4

McCann Michael M · CIK 0001760470 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,471

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: Reflect the withholding of 3,413 shares by Limbach Holdings, Inc. (the "Company") to satisfy tax withholding requirements not previously reported. Such transaction was exempt from Section 16(b) pursuant to Rule 16b-3.

SEC source: 0001628280-22-000224 · wf-form4_164133678765837.xml · nonDerivative · entry 3

McCann Michael M · CIK 0001760470 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 63,582

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: Reflect the withholding of 3,413 shares by Limbach Holdings, Inc. (the "Company") to satisfy tax withholding requirements not previously reported. Such transaction was exempt from Section 16(b) pursuant to Rule 16b-3.

SEC source: 0001628280-22-000224 · wf-form4_164133678765837.xml · nonDerivative · entry 2

McCann Michael M · CIK 0001760470 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,082

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: Reflect the withholding of 3,413 shares by Limbach Holdings, Inc. (the "Company") to satisfy tax withholding requirements not previously reported. Such transaction was exempt from Section 16(b) pursuant to Rule 16b-3.

SEC source: 0001628280-22-000224 · wf-form4_164133678765837.xml · nonDerivative · entry 1

McCann Michael M · CIK 0001760470 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,749

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: Reflect the withholding of 3,413 shares by Limbach Holdings, Inc. (the "Company") to satisfy tax withholding requirements not previously reported. Such transaction was exempt from Section 16(b) pursuant to Rule 16b-3.

SEC source: 0001628280-22-000226 · wf-form4_164133683378855.xml · derivative · entry 7

McNally Michael F · CIK 0001667559 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,077

Underlying: Common Stock · 8,876 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Limbach Holdings, Inc. (the "Company") common stock, exempt under Rule 16b-3.

F5 · derivative.exercise_date: This award of RSUs was granted on 01/01/2022. The RSUs are scheduled to cliff vest on January 1, 2023.

F5 · derivative.expiration_date: This award of RSUs was granted on 01/01/2022. The RSUs are scheduled to cliff vest on January 1, 2023.

SEC source: 0001628280-22-000226 · wf-form4_164133683378855.xml · derivative · entry 6

McNally Michael F · CIK 0001667559 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,201

Underlying: Common Stock · 1,066 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Limbach Holdings, Inc. (the "Company") common stock, exempt under Rule 16b-3.

F4 · derivative.exercise_date: This award of RSUs was granted on 01/1/2021. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2022, January 1, 2023 and January 1, 2024, subject to continued service through the applicable vesting date

F4 · derivative.expiration_date: This award of RSUs was granted on 01/1/2021. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2022, January 1, 2023 and January 1, 2024, subject to continued service through the applicable vesting date

SEC source: 0001628280-22-000226 · wf-form4_164133683378855.xml · derivative · entry 5

McNally Michael F · CIK 0001667559 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,267

Underlying: Common Stock · 1,067 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Limbach Holdings, Inc. (the "Company") common stock, exempt under Rule 16b-3.

F3 · derivative.exercise_date: This award of RSUs was granted on 01/01/2020. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2021, January 1, 2022 and January 1, 2023, subject to continued service through the applicable vesting date.

F3 · derivative.expiration_date: This award of RSUs was granted on 01/01/2020. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2021, January 1, 2022 and January 1, 2023, subject to continued service through the applicable vesting date.

SEC source: 0001628280-22-000226 · wf-form4_164133683378855.xml · derivative · entry 4

McNally Michael F · CIK 0001667559 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,334

Underlying: Common Stock · 1,067 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Limbach Holdings, Inc. (the "Company") common stock, exempt under Rule 16b-3.

F2 · derivative.exercise_date: This award of RSUs was granted on 02/27/2019. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2020, January 1, 2021 and January 1, 2022, subject to continued service through the applicable vesting date.

F2 · derivative.expiration_date: This award of RSUs was granted on 02/27/2019. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2020, January 1, 2021 and January 1, 2022, subject to continued service through the applicable vesting date.

SEC source: 0001628280-22-000226 · wf-form4_164133683378855.xml · nonDerivative · entry 3

McNally Michael F · CIK 0001667559 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,499

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: 0001628280-22-000226 · wf-form4_164133683378855.xml · nonDerivative · entry 2

McNally Michael F · CIK 0001667559 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,433

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: 0001628280-22-000226 · wf-form4_164133683378855.xml · nonDerivative · entry 1

McNally Michael F · CIK 0001667559 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,366

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: 0001628280-22-000284 · wf-form4_164134938422329.xml · derivative · entry 6

Horowitz Joshua · CIK 0001612424 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,077

Underlying: Common Stock · 8,876 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Limbach Holdings, Inc. (the "Company") common stock, exempt under Rule 16b-3.

F4 · derivative.exercise_date: This award of RSUs was granted on 01/01/2022. The RSUs are scheduled to cliff vest on January 1, 2023.

F4 · derivative.expiration_date: This award of RSUs was granted on 01/01/2022. The RSUs are scheduled to cliff vest on January 1, 2023.

SEC source: 0001628280-22-000284 · wf-form4_164134938422329.xml · derivative · entry 5

Horowitz Joshua · CIK 0001612424 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,201

Underlying: Common Stock · 1,066 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Limbach Holdings, Inc. (the "Company") common stock, exempt under Rule 16b-3.

F3 · derivative.exercise_date: This award of RSUs was granted on 01/01/2021. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2022, January 1, 2023 and January 1, 2024, subject to continued service through the applicable vesting date.

F3 · derivative.expiration_date: This award of RSUs was granted on 01/01/2021. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2022, January 1, 2023 and January 1, 2024, subject to continued service through the applicable vesting date.

SEC source: 0001628280-22-000284 · wf-form4_164134938422329.xml · derivative · entry 4

Horowitz Joshua · CIK 0001612424 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,267

Underlying: Common Stock · 1,067 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Limbach Holdings, Inc. (the "Company") common stock, exempt under Rule 16b-3.

F2 · derivative.exercise_date: This award of RSU's was granted on 04/03/2020. The award is subject to service-based vesting conditions and vests 27.241732% on January 1, 2021 and 36.379134% on each of January 1, 2022 and January 1, 2023, subject to continued service through the applicable vesting date.

F2 · derivative.expiration_date: This award of RSU's was granted on 04/03/2020. The award is subject to service-based vesting conditions and vests 27.241732% on January 1, 2021 and 36.379134% on each of January 1, 2022 and January 1, 2023, subject to continued service through the applicable vesting date.

SEC source: 0001628280-22-000284 · wf-form4_164134938422329.xml · nonDerivative · entry 2

Horowitz Joshua · CIK 0001612424 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,932

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: 0001628280-22-000284 · wf-form4_164134938422329.xml · nonDerivative · entry 1

Horowitz Joshua · CIK 0001612424 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,866

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: 0001628280-22-000229 · wf-form4_164133690388891.xml · derivative · entry 9

Brooks Jayme L. · CIK 0001447591 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,894

Underlying: Common Stock · 10,893 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Company's common stock, exempt under Rule 16b-3.

F6 · derivative.exercise_date: This award of RSUs was granted on 1/1/2022. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2023, January 1, 2024 and January 1, 2025, subject to continued employment through the applicable vesting date. The amounts reported above (related to this grant) do not include performance-based RSUs, if any, that may be earned by the reporting person but for which the Compensation Committee has not yet determined the achievement of the applicable performance goals. Any such RSU's will be reported on a Form 4 within two business days of the date of such determination.

F6 · derivative.expiration_date: This award of RSUs was granted on 1/1/2022. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2023, January 1, 2024 and January 1, 2025, subject to continued employment through the applicable vesting date. The amounts reported above (related to this grant) do not include performance-based RSUs, if any, that may be earned by the reporting person but for which the Compensation Committee has not yet determined the achievement of the applicable performance goals. Any such RSU's will be reported on a Form 4 within two business days of the date of such determination.

SEC source: 0001628280-22-000229 · wf-form4_164133690388891.xml · derivative · entry 8

Brooks Jayme L. · CIK 0001447591 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,001

Underlying: Common Stock · 3,333 shares

Expires not disclosed

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_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Company's common stock, exempt under Rule 16b-3.

F5 · derivative.exercise_date: This award of RSUs was granted on 1/1/2021. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2022, January 1, 2023 and January 1, 2024, subject to continued employment through the applicable vesting date. The amounts reported above (related to this grant) do not include performance-based RSUs, if any, that may be earned by the reporting person but for which the Compensation Committee has not yet determined the achievement of the applicable performance goals. Any such RSU's will be reported on a Form 4 within two business days of the date of such determination.

F5 · derivative.expiration_date: This award of RSUs was granted on 1/1/2021. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2022, January 1, 2023 and January 1, 2024, subject to continued employment through the applicable vesting date. The amounts reported above (related to this grant) do not include performance-based RSUs, if any, that may be earned by the reporting person but for which the Compensation Committee has not yet determined the achievement of the applicable performance goals. Any such RSU's will be reported on a Form 4 within two business days of the date of such determination.

SEC source: 0001628280-22-000229 · wf-form4_164133690388891.xml · derivative · entry 7

Brooks Jayme L. · CIK 0001447591 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,334

Underlying: Common Stock · 3,333 shares

Expires not disclosed

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_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Company's common stock, exempt under Rule 16b-3.

F4 · derivative.exercise_date: This award of RSUs was granted on 01/01/2020. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2021, January 1, 2022 and January 1, 2023, subject to continued employment through the applicable vesting date. The amounts reported above (related to this grant) do not include performance-based RSUs, if any, that may be earned by the reporting person but for which the Compensation Committee has not yet determined the achievement of the applicable performance goals. Any such RSUs will be reported on a Form 4 within two business days of the date of such determination.

F4 · derivative.expiration_date: This award of RSUs was granted on 01/01/2020. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2021, January 1, 2022 and January 1, 2023, subject to continued employment through the applicable vesting date. The amounts reported above (related to this grant) do not include performance-based RSUs, if any, that may be earned by the reporting person but for which the Compensation Committee has not yet determined the achievement of the applicable performance goals. Any such RSUs will be reported on a Form 4 within two business days of the date of such determination.

SEC source: 0001628280-22-000229 · wf-form4_164133690388891.xml · nonDerivative · entry 5

Brooks Jayme L. · CIK 0001447591 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,027

F1 · balance_after: Reflect the withholding of 2,169 shares by Limbach Holdings, Inc. (the "Company") to satisfy tax withholding requirements not previously reported. Such transaction was exempt from Section 16(b) pursuant to Rule 16b-3.

SEC source: 0001628280-22-000229 · wf-form4_164133690388891.xml · nonDerivative · entry 4

Brooks Jayme L. · CIK 0001447591 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,871

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: Reflect the withholding of 2,169 shares by Limbach Holdings, Inc. (the "Company") to satisfy tax withholding requirements not previously reported. Such transaction was exempt from Section 16(b) pursuant to Rule 16b-3.

SEC source: 0001628280-22-000229 · wf-form4_164133690388891.xml · nonDerivative · entry 3

Brooks Jayme L. · CIK 0001447591 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,538

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: Reflect the withholding of 2,169 shares by Limbach Holdings, Inc. (the "Company") to satisfy tax withholding requirements not previously reported. Such transaction was exempt from Section 16(b) pursuant to Rule 16b-3.

SEC source: 0001628280-22-000227 · wf-form4_164133685655968.xml · derivative · entry 7

Young Norbert W. · CIK 0001679800 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,077

Underlying: Common Stock · 8,876 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Limbach Holdings, Inc. (the "Company") common stock, exempt under Rule 16b-3.

F5 · derivative.exercise_date: This award of RSUs was granted on 01/01/2022. The RSUs are scheduled to cliff vest on January 1, 2023.

F5 · derivative.expiration_date: This award of RSUs was granted on 01/01/2022. The RSUs are scheduled to cliff vest on January 1, 2023.

SEC source: 0001628280-22-000227 · wf-form4_164133685655968.xml · derivative · entry 6

Young Norbert W. · CIK 0001679800 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,201

Underlying: Common Stock · 1,066 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Limbach Holdings, Inc. (the "Company") common stock, exempt under Rule 16b-3.

F4 · derivative.exercise_date: This award of RSUs was granted on 01/01/2021. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2022, January 1, 2023 and January 1, 2024, subject to continued service through the applicable vesting date.

F4 · derivative.expiration_date: This award of RSUs was granted on 01/01/2021. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2022, January 1, 2023 and January 1, 2024, subject to continued service through the applicable vesting date.

SEC source: 0001628280-22-000227 · wf-form4_164133685655968.xml · derivative · entry 5

Young Norbert W. · CIK 0001679800 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,267

Underlying: Common Stock · 1,067 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Limbach Holdings, Inc. (the "Company") common stock, exempt under Rule 16b-3.

F3 · derivative.exercise_date: This award of RSUs was granted on 01/01/2020. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2021, January 1, 2022 and January 1, 2023, subject to continued service through the applicable vesting date.

F3 · derivative.expiration_date: This award of RSUs was granted on 01/01/2020. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2021, January 1, 2022 and January 1, 2023, subject to continued service through the applicable vesting date.

SEC source: 0001628280-22-000227 · wf-form4_164133685655968.xml · derivative · entry 4

Young Norbert W. · CIK 0001679800 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,334

Underlying: Common Stock · 1,067 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Limbach Holdings, Inc. (the "Company") common stock, exempt under Rule 16b-3.

F2 · derivative.exercise_date: This award of RSUs was granted on 02/27/2019. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2020, January 1, 2021 and January 1, 2022, subject to continued service through the applicable vesting date.

F2 · derivative.expiration_date: This award of RSUs was granted on 02/27/2019. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2020, January 1, 2021 and January 1, 2022, subject to continued service through the applicable vesting date.

SEC source: 0001628280-22-000227 · wf-form4_164133685655968.xml · nonDerivative · entry 3

Young Norbert W. · CIK 0001679800 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,699

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: 0001628280-22-000227 · wf-form4_164133685655968.xml · nonDerivative · entry 2

Young Norbert W. · CIK 0001679800 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,633

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: 0001628280-22-000227 · wf-form4_164133685655968.xml · nonDerivative · entry 1

Young Norbert W. · CIK 0001679800 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,566

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: 0001628280-22-000225 · wf-form4_164133680631710.xml · derivative · entry 9

PRATT GORDON G · CIK 0001409889 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,077

Underlying: Common Stock · 8,876 shares

Expires not disclosed

F3 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Limbach Holdings, Inc. (the "Company") common stock, exempt under Rule 16b-3.

F7 · derivative.exercise_date: This award of RSUs was granted on 01/01/2022. The RSUs are scheduled to cliff vest on January 1, 2023.

F7 · derivative.expiration_date: This award of RSUs was granted on 01/01/2022. The RSUs are scheduled to cliff vest on January 1, 2023.

SEC source: 0001628280-22-000225 · wf-form4_164133680631710.xml · derivative · entry 8

PRATT GORDON G · CIK 0001409889 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,201

Underlying: Common Stock · 1,066 shares

Expires not disclosed

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.

F3 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Limbach Holdings, Inc. (the "Company") common stock, exempt under Rule 16b-3.

F6 · derivative.exercise_date: This award of RSUs was granted on 01/1/2021. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2022, January 1, 2023 and January 1, 2024, subject to continued service through the applicable vesting date.

F6 · derivative.expiration_date: This award of RSUs was granted on 01/1/2021. The award is subject to service-based vesting conditions and vests in equal annual installments on each of January 1, 2022, January 1, 2023 and January 1, 2024, subject to continued service through the applicable vesting date.