CHIN DEAN A

SEC source: 0001225208-21-013513 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,905

F1 · shares: Dividend equivalent rights (DERs) accrued on the restricted stock units granted under the 2006 Equity Incentive Plan. DERs vest in the same manner as the restricted stock units to which they relate. Each DER is the economic equivalent of one share of ABM common stock.

F2 · balance_after: Includes 9,703 unvested Restricted Stock Units (RSUs) and DERs relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-21-012376 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,865

F1 · balance_after: Includes 9,663 unvested Restricted Stock Units (RSUs) and Dividend Equivalent Rights relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-21-011159 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,655

F1 · shares: Dividend equivalent rights (DERs) accrued on the restricted stock units granted under the 2006 Equity Incentive Plan. DERs vest in the same manner as the restricted stock units to which they relate. Each DER is the economic equivalent of one share of ABM common stock.

F2 · balance_after: Includes 10,772 unvested Restricted Stock Units (RSUs) and DERs relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-21-010703 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,595

F1 · balance_after: Includes 10,712 unvested Restricted Stock Units and Dividend Equivalent Rights relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-21-007601 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,049

F1 · shares: Dividend equivalent rights (DERs) accrued on the restricted stock units granted under the 2006 Equity Incentive Plan. DERs vest in the same manner as the restricted stock units to which they relate. Each DER is the economic equivalent of one share of ABM common stock.

F2 · balance_after: Includes 14,376 unvested RSUs and Dividend Equivalent Rights relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-21-005400 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,999

F1 · balance_after: Includes 14,325 unvested Restricted Stock Units (RSUs) and Dividend Equivalent Rights relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-21-001653 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,853

F1 · shares: Dividend equivalent rights (DERs) accrued on the restricted stock units granted under the 2006 Equity Incentive Plan. DERs vest in the same manner as the restricted stock units to which they relate. Each DER is the economic equivalent of one share of ABM common stock.

F2 · balance_after: Includes 14,318 unvested RSUs and Dividend Equivalent Rights relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-21-000770 · doc4.xml · nonDerivative · entry 6

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,797

F5 · shares: Represents common stock withheld by the Issuer to cover tax withholding obligations arising from the vesting of performance shares and TSR performance shares.

F6 · balance_after: Includes 14,261 unvested RSUs and Dividend Equivalent Rights relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-21-000770 · doc4.xml · nonDerivative · entry 5

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,274

F2 · shares: Represents common stock withheld by the Issuer to cover tax withholding obligations arising from the vesting of a previous grant of restricted stock units.

SEC source: 0001225208-21-000770 · doc4.xml · nonDerivative · entry 4

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,126

F4 · shares: Represents the number of shares earned in connection with TSR performance shares previously granted on 1/10/2018, based on TSR performance in the 3-year period beginning 11/1/2017 and ended 10/31/2020 as compared to the S&PSmallCap 600 Index. Such TSR performance shares vested on 1/10/2021.

SEC source: 0001225208-21-000770 · doc4.xml · nonDerivative · entry 3

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,879

F3 · shares: Represents the number of shares earned in connection with performance shares previously granted on 1/10/2018, based on achievement of certain targets in the period ended 10/31/2020. Such performance shares vested on 1/10/2021.

SEC source: 0001225208-21-000770 · doc4.xml · nonDerivative · entry 2

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,065

F2 · shares: Represents common stock withheld by the Issuer to cover tax withholding obligations arising from the vesting of a previous grant of restricted stock units.

SEC source: 0001225208-21-000770 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,989

F1 · shares: Restricted stock units (RSUs) granted under the 2006 Equity Incentive Plan, representing a contingent right to receive shares of common stock. Units vest in three equal annual installments beginning a year from the grant date, and will settle in shares of common stock. Dividend equivalent rights (DERs) will accrue.

SEC source: 0001225208-20-013097 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP, Interim CFO & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,137

F1 · shares: Dividend equivalent rights (DERs) accrued on the restricted stock units granted under the 2006 Equity Incentive Plan. DERs vest in the same manner as the restricted stock units to which they relate. Each DER is the economic equivalent of one share of ABM common stock.

F2 · balance_after: Includes 14,260 unvested RSUs and DERs relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-20-011574 · doc4.xml · nonDerivative · entry 2

CHIN DEAN A · CIK 0001492719 · SVP, Interim CFO & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,063

F1 · balance_after: Includes 14,186 unvested RSUs and Dividend Equivalent Rights related to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-20-011574 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP, Interim CFO & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,925

SEC source: 0001225208-20-010284 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP, Interim CFO & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,228

F1 · shares: Dividend equivalent rights (DERs) accrued on restricted stock units and earned but not yet vested performance shares granted under the 2006 Equity Incentive Plan. DERs vest in the same manner as the restricted stock units or earned performance shares to which they relate. Each DER is the economic equivalent of one share of ABM common stock.

F2 · balance_after: Includes 15,699 unvested RSUs and 530 performance shares earned but not vested with respect to TSR performance shares granted on 9/11/2017. Such RSUs and performance shares include DERs.

SEC source: 0001225208-20-009993 · doc4.xml · derivative · entry 3

CHIN DEAN A · CIK 0001492719 · SVP, Interim CFO & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,717 shares

Expires 2020-09-06

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.

F3 · security: Stock options granted under the 2006 Equity Incentive Plan.

F1 · kind: The exercise of stock options and corresponding sale of shares reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 24, 2020.

F4 · derivative.exercise_date: 25% exercisable on 9/6/2014 and 25% on the anniversary date of the following three years.

SEC source: 0001225208-20-009993 · doc4.xml · nonDerivative · entry 2

CHIN DEAN A · CIK 0001492719 · SVP, Interim CFO & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,183

F1 · kind: The exercise of stock options and corresponding sale of shares reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 24, 2020.

F2 · balance_after: Includes 15,655 unvested RSUs and 527 performance shares earned but not vested with respect to TSR performance shares granted on 9/11/2017. Such RSUs and performance shares include Dividend Equivalent Rights.

SEC source: 0001225208-20-009993 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP, Interim CFO & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,900

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 · kind: The exercise of stock options and corresponding sale of shares reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 24, 2020.

SEC source: 0001225208-20-009792 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,183

F1 · shares: Restricted stock units (RSUs) granted under the 2006 Equity Incentive Plan, representing a contingent right to receive shares of common stock. Units vest in two equal annual installments beginning a year from the grant date, and will settle in shares of common stock. Dividend equivalent rights (DERs) will accrue.

F2 · balance_after: Includes 15,655 unvested RSUs and 527 performance shares earned but not vested with respect to TSR performance shares granted on 9/11/2017. Such RSUs and performance shares include DERs.

SEC source: 0001225208-20-007194 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,956

F1 · shares: Dividend equivalent rights (DERs) accrued on restricted stock units and earned but not yet vested performance shares granted under the 2006 Equity Incentive Plan. DERs vest in the same manner as the restricted stock units or earned performance shares to which they relate. Each DER is the economic equivalent of one share of ABM common stock.

F2 · balance_after: Includes 8,428 unvested RSUs and 527 performance shares earned but not vested with respect to TSR performance shares granted on 9/11/2017. Such RSUs and performance shares include DERs.

SEC source: 0001225208-20-001753 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,906

F1 · shares: Dividend equivalent rights (DERs) accrued on the restricted stock units granted under the 2006 Equity Incentive Plan. DERs vest in the same manner as the restricted stock units to which they relate. Each DER is the economic equivalent of one share of ABM common stock.

F2 · balance_after: Includes 8,380 unvested RSUs, 524 performance shares earned but not vested with respect to TSR performance shares granted on 9/11/2017. Such RSUs and performance shares include Dividend Equivalent Rights.

SEC source: 0001225208-20-000753 · doc4.xml · nonDerivative · entry 2

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,867

F2 · balance_after: Includes 8,343 unvested RSUs, 522 performance shares earned but not vested with respect to TSR performance shares granted on 9/11/2017, and Dividend Equivalent Rights related to such RSUs and performance shares, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-20-000753 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,629

F1 · shares: Restricted stock units (RSUs) granted under the 2006 Equity Incentive Plan, representing a contingent right to receive shares of common stock. Units vest in three equal annual installments beginning a year from the grant date, and will settle in shares of common stock. Dividend equivalent rights (DERs) will accrue.

SEC source: 0001225208-20-000713 · doc4.xml · nonDerivative · entry 2

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,150

F2 · shares: Represents the number of shares earned in connection with TSR performance shares previously granted on 9/11/2017, based on TSR performance in the 3-year period ended 10/31/2019 as compared to the S&P SmallCap 600 Index. Such TSR performance shares vest on 9/11/2020.

F3 · balance_after: Includes 7,901 unvested RSUs and Dividend Equivalent Rights (DERs) related to the RSUs, adjusted to reflect the cumulative effect of fractional shares, 3,174 performance shares earned but not vested with respect to performance shares granted on 1/10/2017, 522 performance shares earned but not vested with respect to TSR performance shares granted on 9/11/2017, and DERs related thereto.

SEC source: 0001225208-20-000713 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,628

F1 · shares: Represents the number of shares earned in connection with performance shares previously granted on 1/10/2017, based on achievement of certain targets in the period ending 10/31/2019. These performance shares vest on 1/10/2020.

SEC source: 0001225208-19-014224 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,454

F1 · shares: Dividend equivalent rights (DERs) accrued on the restricted stock units granted under the 2006 Equity Incentive Plan. DERs vest in the same manner as the restricted stock units to which they relate. Each DER is the economic equivalent of one share of ABM common stock.

F2 · balance_after: Includes 7,901 unvested RSUs and DERs relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-19-012614 · doc4.xml · nonDerivative · entry 4

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,416

F4 · balance_after: Includes 7,863 unvested RSUs and DERs relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-19-012614 · doc4.xml · nonDerivative · entry 3

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,872

F3 · shares: Dividend equivalent rights (DERs) accrued on earned TSR-performance shares under the 2006 Equity Incentive Plan. Each DER is the economic equivalent of one share of ABM common stock.

SEC source: 0001225208-19-012446 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,072

F1 · balance_after: Includes 7,863 unvested RSUs and DERs relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-19-012297 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,684

SEC source: 0001225208-19-011033 · doc4.xml · nonDerivative · entry 2

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,647

F2 · kind: The sale of shares reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person.

F3 · balance_after: Includes 10,621 unvested RSUs and DERs relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-19-011033 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,976

F1 · shares: Dividend equivalent rights (DERs) accrued on the restricted stock units granted under the 2006 Equity Incentive Plan. DERs vest in the same manner as the restricted stock units to which they relate. Each DER is the economic equivalent of one share of ABM common stock.

SEC source: 0001144204-19-024609 · tv521119_4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,936

F1 · shares: Dividend equivalent rights (DERs) accrued on the restricted stock units granted under the 2006 Equity Incentive Plan. DERs vest in the same manner as the restricted stock units to which they relate. Each DER is the economic equivalent of one share of ABM common stock.

F2 · balance_after: Includes 10,566 unvested RSUs and DERs relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-19-007348 · doc4.xml · derivative · entry 3

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 5,791 shares

Expires 2019-10-11

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 · security: Stock options granted under the 2006 Equity Incentive Plan.

F1 · kind: The exercise of stock options and sale of shares reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person.

F5 · derivative.exercise_date: 25% exercisable on 10/11/2013 and 25% on the anniversary date of the following three years.

SEC source: 0001225208-19-007348 · doc4.xml · nonDerivative · entry 2

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,886

F1 · kind: The exercise of stock options and sale of shares reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.32 to $37.67, inclusive. The reporting person undertakes to provide ABM Industries Incorporated, any security holder of ABM Industries Incorporated, 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 footnote 2 of this Form 4.

F3 · balance_after: Includes 10,516 unvested RSUs and DERs relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-19-007348 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,644

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 · kind: The exercise of stock options and sale of shares reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person.

SEC source: 0001225208-19-003312 · doc4.xml · nonDerivative · entry 2

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,853

F2 · balance_after: Includes 10,516 unvested RSUs and DERs relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001225208-19-003312 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,978

F1 · shares: Dividend equivalent rights (DERs) accrued on earned performance shares under the 2006 Equity Incentive Plan. Each DER is the economic equivalent of one share of ABM common stock.

SEC source: 0001225208-19-001922 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,760

F1 · shares: Dividend equivalent rights (DERs) accrued on the restricted stock units granted under the 2006 Equity Incentive Plan. DERs vest in the same manner as the restricted stock units to which they relate. Each DER is the economic equivalent of one share of ABM common stock.

F2 · balance_after: Includes 10,516 unvested RSUs and DERs relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001567619-19-001178 · doc1.xml · nonDerivative · entry 2

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,716

F2 · balance_after: Includes 10,472 unvested RSUs and DERs relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001567619-19-001178 · doc1.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,187

F1 · shares: Represents the number of shares of common stock earned in connection with performance shares previously granted on 1/12/2016, based on achievement of certain targets in the period ended 10/31/2018. These performance shares vested on 1/12/2019.

SEC source: 0001567619-19-001050 · doc1.xml · nonDerivative · entry 2

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,062

F2 · balance_after: Includes 10,472 unvested RSUs and DERs relating to the unvested RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001567619-19-001050 · doc1.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,876

F1 · shares: Restricted stock units (RSUs) granted under the 2006 Equity Incentive Plan, representing a contingent right to receive shares of common stock. Units vest 50% on the second anniversary of the grant date and 50% on the fourth anniversary of the grant date, and will settle in shares of common stock. Dividend equivalent rights (DERs) will accrue.

SEC source: 0001225208-19-012614 · doc4.xml · nonDerivative · entry 2

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,828

F2 · shares: Represents the number of shares earned in connection with TSR performance shares previously granted on 9/12/2016, based on TSR performance in the 3-year period ended 10/31/2018 as compared to the S&P SmallCap 600 Index. Such TSR performance shares vested on 9/12/2019. Inadvertently, these TSR performance shares were not reported at the time they were earned (12/21/2018).

SEC source: 0001225208-19-012614 · doc4.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,072

F1 · shares: Represents the number of shares earned in connection with performance shares previously granted on 1/12/2016, based on achievement of certain targets in the period ended 10/31/2018. Inadvertently, these performance shares were not reported at the time they were earned (12/21/2018), but were reported on a subsequent Form 4 disclosing their vesting and payout on 1/12/2019. As a result, none of these performance shares are being added to the reporting person's beneficial ownership total in this Form 4 to avoid double-counting.

SEC source: 0001567619-18-007168 · doc1.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,979

F1 · kind: All sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan entered into by reporting person.

F2 · balance_after: Includes 9,881 RSUs and DERs relating to the RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001567619-18-005279 · doc1.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,003

F1 · shares: Dividend equivalent rights (DERs) accrued on the restricted stock units granted under the 2006 Equity Incentive Plan. DERs vest in the same manner as the restricted stock units to which they relate. Each DER is the economic equivalent of one share of ABM common stock.

F2 · balance_after: Includes 9,881 RSUs and DERs relating to the RSUs, adjusted to reflect the cumulative effect of fractional shares.

SEC source: 0001567619-18-004227 · doc1.xml · nonDerivative · entry 1

CHIN DEAN A · CIK 0001492719 · SVP - Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,949

F1 · kind: All sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan entered into by reporting person.

F2 · balance_after: Includes 9,827 RSUs, adjusted to reflect the cumulative effect of fractional shares, and DERs related thereto.