III

SEC source: 0001415889-24-020620 · form4-08022024_040802.xml · nonDerivative · entry 2

Sherrick Michael A. · CIK 0001989706 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 317,348

F2 · kind: Represents deemed disposition of shares of common stock to the Issuer as a result of withholding of shares of common stock to satisfy tax withholding obligations in connection with vesting of RSUs issued in accordance with Rule 16b-3.

SEC source: 0001415889-24-020620 · form4-08022024_040802.xml · nonDerivative · entry 1

Sherrick Michael A. · CIK 0001989706 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 323,322

F1 · kind: Represents restricted stock units (RSUs) granted to the reporting person pursuant to the Information Services Group, Inc. Amended and Restated 2007 Equity and Incentive Award Plan, which will vest 100% on the first anniversary of August 1, 2025.

SEC source: 0001415889-24-015493 · form4-06042024_110626.xml · derivative · entry 3

CONNORS MICHAEL P · CIK 0001249201 · Director · CHAIRMAN & CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 571,429

Underlying: Common Stock · 571,429 shares

Expires 2027-06-03

F3 · derivative.exercise_price: Represents a grant of RSUs that may be earned based on achievement of certain market price goals, which will be measured at the average closing price of the issuer's common stock over the forty five-day period prior to and including the third anniversary of the date of grant. 50% of the number of RSUs reported above will be earned if the measured market price is $6.00, 75% of the RSUs will be earned if the measured market price is $7.00 and 100% of the RSUs will be earned if the measured market price is $8.00 or above, with interpolation of the number of earned RSUs between these share price points. In addition, if the measured market price meets or exceeds $8.00 at any time before and including the third anniversary of the award, 100% of the RSUs will be earned. Unearned RSUs will be cancelled. Market price goals are subject to adjustment for stock splits and certain other corporate events. Once determined, any such earned RSUs will be fully vested.

F3 · derivative.exercise_date: Represents a grant of RSUs that may be earned based on achievement of certain market price goals, which will be measured at the average closing price of the issuer's common stock over the forty five-day period prior to and including the third anniversary of the date of grant. 50% of the number of RSUs reported above will be earned if the measured market price is $6.00, 75% of the RSUs will be earned if the measured market price is $7.00 and 100% of the RSUs will be earned if the measured market price is $8.00 or above, with interpolation of the number of earned RSUs between these share price points. In addition, if the measured market price meets or exceeds $8.00 at any time before and including the third anniversary of the award, 100% of the RSUs will be earned. Unearned RSUs will be cancelled. Market price goals are subject to adjustment for stock splits and certain other corporate events. Once determined, any such earned RSUs will be fully vested.

SEC source: 0001415889-24-015493 · form4-06042024_110626.xml · nonDerivative · entry 2

CONNORS MICHAEL P · CIK 0001249201 · Director · CHAIRMAN & CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,490,218

F2 · kind: Represents restricted stock units (RSUs) granted to the reporting person pursuant to the Information Services Group, Inc. Amended and Restated 2007 Equity and Incentive Award Plan, which will vest in 4 equal installments on each of the first, second, third and fourth anniversaries of June 1, 2024.

SEC source: 0001415889-24-015491 · form4-06042024_110618.xml · derivative · entry 3

Lavieri Todd D. · CIK 0001760914 · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,683

Underlying: Common Stock · 39,683 shares

Expires 2028-06-01

F3 · derivative.exercise_price: Represents a grant of RSUs that may be earned based on the achievement of market price goals, which will be measured as the average closing price of issuer's common stock over any ten consecutive trading day period beginning with the first anniversary of the award. 100% of the number of RSUs will be earned if the measured market price is $6.00 or above. If this measured market price is not achieved by the fourth anniversary of the award, these RSUs will be forfeited. Market price goals are subject to adjustment for stock splits and certain other corporate events. Once determined, any such earned RSUs will be fully vested.

F3 · derivative.exercise_date: Represents a grant of RSUs that may be earned based on the achievement of market price goals, which will be measured as the average closing price of issuer's common stock over any ten consecutive trading day period beginning with the first anniversary of the award. 100% of the number of RSUs will be earned if the measured market price is $6.00 or above. If this measured market price is not achieved by the fourth anniversary of the award, these RSUs will be forfeited. Market price goals are subject to adjustment for stock splits and certain other corporate events. Once determined, any such earned RSUs will be fully vested.

SEC source: 0001415889-24-015491 · form4-06042024_110618.xml · nonDerivative · entry 2

Lavieri Todd D. · CIK 0001760914 · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,080,725

F2 · kind: Represents restricted stock units (RSUs) granted to the reporting person pursuant to the Information Services Group, Inc. Amended and Restated 2007 Equity and Incentive Award Plan, which will vest in 4 equal installments on each of the first, second, third and fourth anniversaries of June 1, 2024.

SEC source: 0001415889-24-015492 · form4-06042024_110645.xml · derivative · entry 2

Sherrick Michael A. · CIK 0001989706 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,778

Underlying: Common Stock · 27,778 shares

Expires 2028-06-03

F2 · security: Represents a grant of RSUs that may be earned based on the achievement of market price goals, which will be measured as the average closing price of issuer's common stock over any ten consecutive trading day period beginning with the first anniversary of the award. 100% of the number of RSUs will be earned if the measured market price is $6.00 or above. If this measured market price is not achieved by the fourth anniversary of the award, these RSUs will be forfeited. Market price goals are subject to adjustment for stock splits and certain other corporate events. Once determined, any such earned RSUs will be fully vested.

F2 · derivative.exercise_price: Represents a grant of RSUs that may be earned based on the achievement of market price goals, which will be measured as the average closing price of issuer's common stock over any ten consecutive trading day period beginning with the first anniversary of the award. 100% of the number of RSUs will be earned if the measured market price is $6.00 or above. If this measured market price is not achieved by the fourth anniversary of the award, these RSUs will be forfeited. Market price goals are subject to adjustment for stock splits and certain other corporate events. Once determined, any such earned RSUs will be fully vested.

F2 · derivative.exercise_date: Represents a grant of RSUs that may be earned based on the achievement of market price goals, which will be measured as the average closing price of issuer's common stock over any ten consecutive trading day period beginning with the first anniversary of the award. 100% of the number of RSUs will be earned if the measured market price is $6.00 or above. If this measured market price is not achieved by the fourth anniversary of the award, these RSUs will be forfeited. Market price goals are subject to adjustment for stock splits and certain other corporate events. Once determined, any such earned RSUs will be fully vested.

SEC source: 0001415889-24-015492 · form4-06042024_110645.xml · nonDerivative · entry 1

Sherrick Michael A. · CIK 0001989706 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 293,111

F1 · kind: Represents restricted stock units (RSUs) granted to the reporting person pursuant to the Information Services Group, Inc. Amended and Restated 2007 Equity and Incentive Award Plan, which will vest in 4 equal installments on each of the first, second, third and fourth anniversaries of June 1, 2024.

SEC source: 0001415889-24-015490 · form4-06042024_110641.xml · derivative · entry 3

Kucinski Thomas S. · CIK 0001708533 · EVP, CHIEF HR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,905

Underlying: Common Stock · 11,905 shares

Expires 2028-06-03

F3 · derivative.exercise_price: Represents a grant of RSUs that may be earned based on the achievement of market price goals, which will be measured as the average closing price of issuer's common stock over any ten consecutive trading day period beginning with the first anniversary of the award. 100% of the number of RSUs will be earned if the measured market price is $6.00 or above. If this measured market price is not achieved by the fourth anniversary of the award, these RSUs will be forfeited. Market price goals are subject to adjustment for stock splits and certain other corporate events. Once determined, any such earned RSUs will be fully vested.

F3 · derivative.exercise_date: Represents a grant of RSUs that may be earned based on the achievement of market price goals, which will be measured as the average closing price of issuer's common stock over any ten consecutive trading day period beginning with the first anniversary of the award. 100% of the number of RSUs will be earned if the measured market price is $6.00 or above. If this measured market price is not achieved by the fourth anniversary of the award, these RSUs will be forfeited. Market price goals are subject to adjustment for stock splits and certain other corporate events. Once determined, any such earned RSUs will be fully vested.

SEC source: 0001415889-24-015490 · form4-06042024_110641.xml · nonDerivative · entry 2

Kucinski Thomas S. · CIK 0001708533 · EVP, CHIEF HR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 301,301

F2 · kind: Represents restricted stock units (RSUs) granted to the reporting person pursuant to the Information Services Group, Inc. Amended and Restated 2007 Equity and Incentive Award Plan, which will vest in 4 equal installments on each of the first, second, third and fourth anniversaries of June 1, 2024.

SEC source: 0001415889-24-015493 · form4-06042024_110626.xml · nonDerivative · entry 1

CONNORS MICHAEL P · CIK 0001249201 · Director · CHAIRMAN & CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,331,488

F1 · kind: Represents deemed disposition of shares of common stock to the Issuer as a result of withholding of shares of common stock to satisfy tax withholding obligations in connection with vesting of RSUs issued in accordance with Rule 16b-3.

SEC source: 0001415889-24-015491 · form4-06042024_110618.xml · nonDerivative · entry 1

Lavieri Todd D. · CIK 0001760914 · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 961,677

F1 · kind: Represents deemed disposition of shares of common stock to the Issuer as a result of withholding of shares of common stock to satisfy tax withholding obligations in connection with vesting of RSUs issued in accordance with Rule 16b-3.

SEC source: 0001415889-24-015490 · form4-06042024_110641.xml · nonDerivative · entry 1

Kucinski Thomas S. · CIK 0001708533 · EVP, CHIEF HR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 265,587

F1 · kind: Represents deemed disposition of shares of common stock to the Issuer as a result of withholding of shares of common stock to satisfy tax withholding obligations in connection with vesting of RSUs issued in accordance with Rule 16b-3.

SEC source: 0001415889-24-013734 · form4-05202024_040508.xml · nonDerivative · entry 1

Lavieri Todd D. · CIK 0001760914 · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 982,645

F1 · balance_after: Includes 935 shares acquired under the Information Services Group, Inc. Amended and Restated 2007 Employee Stock Purchase Plan.

SEC source: 0001415889-24-009983 · form4-04032024_040401.xml · nonDerivative · entry 1

Kucinski Thomas S. · CIK 0001708533 · EVP, CHIEF HR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 272,509

F1 · kind: Represents deemed disposition of shares of common stock to the Issuer as a result of withholding of shares of common stock to satisfy tax withholding obligations in connection with vesting of restricted stock units issued in accordance with Rule 16b-3.

F2 · balance_after: Includes 241 shares acquired under the Information Services Group, Inc. Amended and Restated 2007 Employee Stock Purchase Plan.

SEC source: 0001415889-24-008482 · form4-03192024_040311.xml · nonDerivative · entry 2

CONNORS MICHAEL P · CIK 0001249201 · Director · CHAIRMAN & CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,370,448

F2 · kind: Represents deemed disposition of shares of common stock to the Issuer as a result of withholding of shares of common stock to satisfy tax withholding obligation in connection with vesting of restricted stock units issued in accordance with Rule 16b-3.

SEC source: 0001415889-24-008482 · form4-03192024_040311.xml · nonDerivative · entry 1

CONNORS MICHAEL P · CIK 0001249201 · Director · CHAIRMAN & CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,411,048

F1 · kind: Represents restricted stock units (RSUs) granted to the reporting pursuant to the Information Services Group, Inc. Amended and Restated 2007 Equity and Incentive Award Plan, which will vest 100% on March 15, 2025.

SEC source: 0001415889-24-008484 · form4-03192024_040315.xml · nonDerivative · entry 1

Kucinski Thomas S. · CIK 0001708533 · EVP, CHIEF HR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 275,397

F1 · kind: Represent restricted stock units (RSUs) granted to the reporting person pursuant to the Information Service Group, Inc. Amended and Restated 2007 Equity and Incentive Award Plan, which will vest 100% on March 15, 2025.

F2 · balance_after: Includes 428 shares acquired under the Information Services Group, Inc. Amended and Restated 2007 Employee Stock Purchase Plan

SEC source: 0001415889-24-008483 · form4-03192024_040313.xml · nonDerivative · entry 2

Lavieri Todd D. · CIK 0001760914 · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 965,710

F3 · kind: Represents deemed disposition of shares of common stock to the Issuer as a result of withholding of shares of common stock to satisfy tax withholding obligations in connection with vesting of restricted stock units issued in accordance with Rule 16b-3.

SEC source: 0001415889-24-008483 · form4-03192024_040313.xml · nonDerivative · entry 1

Lavieri Todd D. · CIK 0001760914 · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 980,232

F1 · kind: Represent restricted stock units (RSUs) granted to the reporting person pursuant to the Information Service Group, Inc. Amended and Restated 2007 Equity and Incentive Award Plan, which will vest 100% on March 15, 2025.

F2 · balance_after: Includes 1,664 shares acquired under the Information Services Group, Inc. Amended and Restated 2007 Employee Stock Purchase Plan.

SEC source: 0001415889-23-016824 · form4-12212023_041202.xml · nonDerivative · entry 1

WAITE DONALD C III · CIK 0001204026 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 566,445

F1 · kind: Represents dividend reinvestment through a personal brokerage account.

SEC source: 0001415889-23-016409 · form4-12132023_101240.xml · nonDerivative · entry 1

HOBBS GERALD S · CIK 0001262377 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 549,772

F1 · kind: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of December 12, 2023 (or earlier in the event of a change of control of ISG or such director's death or disability).

SEC source: 0001415889-23-016406 · form4-12132023_101226.xml · nonDerivative · entry 1

BUDNICK NEIL G · CIK 0001237567 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 319,074

F1 · kind: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of December 12, 2023 (or earlier in the event of a change of control of ISG or such director's death or disability).

SEC source: 0001415889-23-016413 · form4-12132023_101213.xml · nonDerivative · entry 1

RAINA KALPANA · CIK 0001229271 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 415,056

F1 · kind: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of December 12, 2023 (or earlier in the event of a change of control of ISG or such director's death or disability).

SEC source: 0001415889-23-016415 · form4-12132023_101216.xml · nonDerivative · entry 1

WAITE DONALD C III · CIK 0001204026 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 564,213

F1 · kind: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of December 12, 2023 (or earlier in the event of a change of control of ISG or such director's death or disability).

SEC source: 0001415889-23-016418 · form4-12132023_101208.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 163,532

F1 · kind: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of December 12, 2023 (or earlier in the event of a change of control of ISG or such director's death or disability).

SEC source: 0001415889-23-016411 · form4-12132023_101255.xml · nonDerivative · entry 2

Putur Christine · CIK 0001603246 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 300,437

F2 · kind: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of December 12, 2023 (or earlier in the event of a change of control of ISG or such director's death or disability).

SEC source: 0001415889-23-016411 · form4-12132023_101255.xml · nonDerivative · entry 1

Putur Christine · CIK 0001603246 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 271,163

F1 · kind: Represents a sale of shares of common stock to satisfy tax obligations in connection with vesting of restricted stock units and deferred receipt of the related shares of common stock.

SEC source: 0001415889-23-016078 · form4-12082023_101258.xml · nonDerivative · entry 3

BUDNICK NEIL G · CIK 0001237567 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 289,800

F1 · kind: Represents a sale of shares of common stock to satisfy tax obligations in connection with vesting of restricted stock units and deferred receipt of the related shares of common stock.

SEC source: 0001415889-23-016083 · form4-12082023_101200.xml · nonDerivative · entry 3

RAINA KALPANA · CIK 0001229271 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 385,782

F1 · kind: Represents a sale of shares of common stock to satisfy tax obligations in connection with vesting of restricted stock units and deferred receipt of the related shares of common stock.

SEC source: 0001415889-23-016080 · form4-12082023_101229.xml · nonDerivative · entry 3

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,258

F1 · kind: Represents a sale of shares of common stock to satisfy tax obligations in connection with vesting of restricted stock units and deferred receipt of the related shares of common stock.

SEC source: 0001415889-23-016078 · form4-12082023_101258.xml · nonDerivative · entry 2

BUDNICK NEIL G · CIK 0001237567 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 292,362

F1 · kind: Represents a sale of shares of common stock to satisfy tax obligations in connection with vesting of restricted stock units and deferred receipt of the related shares of common stock.

SEC source: 0001415889-23-016083 · form4-12082023_101200.xml · nonDerivative · entry 2

RAINA KALPANA · CIK 0001229271 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 390,439

F1 · kind: Represents a sale of shares of common stock to satisfy tax obligations in connection with vesting of restricted stock units and deferred receipt of the related shares of common stock.

SEC source: 0001415889-23-016080 · form4-12082023_101229.xml · nonDerivative · entry 2

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 138,333

F1 · kind: Represents a sale of shares of common stock to satisfy tax obligations in connection with vesting of restricted stock units and deferred receipt of the related shares of common stock.

SEC source: 0001415889-23-016078 · form4-12082023_101258.xml · nonDerivative · entry 1

BUDNICK NEIL G · CIK 0001237567 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 293,507

F1 · kind: Represents a sale of shares of common stock to satisfy tax obligations in connection with vesting of restricted stock units and deferred receipt of the related shares of common stock.

SEC source: 0001415889-23-016083 · form4-12082023_101200.xml · nonDerivative · entry 1

RAINA KALPANA · CIK 0001229271 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 392,520

F1 · kind: Represents a sale of shares of common stock to satisfy tax obligations in connection with vesting of restricted stock units and deferred receipt of the related shares of common stock.

SEC source: 0001415889-23-016080 · form4-12082023_101229.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 140,154

F1 · kind: Represents a sale of shares of common stock to satisfy tax obligations in connection with vesting of restricted stock units and deferred receipt of the related shares of common stock.

SEC source: 0001415889-23-014875 · form4-11082023_011152.xml · nonDerivative · entry 1

WAITE DONALD C III · CIK 0001204026 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 534,939

F1 · kind: Represents dividend reinvestment through a personal brokerage account.

SEC source: 0001415889-23-013024 · form4-09062023_050901.xml · nonDerivative · entry 2

CONNORS MICHAEL P · CIK 0001249201 · Director · CHAIRMAN & CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,164,134

F2 · kind: Sale is pursuant to a written stock selling plan in accordance with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, which was previously disclosed in the Issuer's Current Report on Form 8-K filed on March 21, 2023.

SEC source: 0001415889-23-013024 · form4-09062023_050901.xml · nonDerivative · entry 1

CONNORS MICHAEL P · CIK 0001249201 · Director · CHAIRMAN & CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,167,822

F1 · kind: Represents deemed disposition of shares of common stock to the Issuer as a result of withholding of shares of common stock to satisfy tax withholding obligations in connection with vesting of RSUs issued in accordance with Rule 16b-3.

SEC source: 0001415889-23-013027 · form4-09062023_050909.xml · nonDerivative · entry 1

Lavieri Todd D. · CIK 0001760914 · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 867,457

F1 · kind: Represents deemed disposition of shares of common stock to the Issuer as a result of withholding of shares of common stock to satisfy tax withholding obligations in connection with vesting of RSUs issued in accordance with Rule 16b-3.

SEC source: 0001415889-23-013026 · form4-09062023_050905.xml · nonDerivative · entry 1

Kucinski Thomas S. · CIK 0001708533 · EVP, CHIEF HR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 260,154

F1 · kind: Represents deemed disposition of shares of common stock to the Issuer as a result of withholding of shares of common stock to satisfy tax withholding obligations in connection with vesting of RSUs issued in accordance with Rule 16b-3.

SEC source: 0001415889-23-013025 · form4-09062023_050903.xml · derivative · entry 4

Sherrick Michael A. · CIK 0001989706 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,191

Underlying: Common Stock · 17,191 shares

Expires 2027-09-01

F4 · derivative.exercise_price: Represents a grant of RSUs that may be earned based on the achievement of market price goals, which will be measured at the average closing price of ISGs common stock over any ten consecutive trading day period beginning with the first anniversary of the award. 100% of the number of RSUs will be earned if the measured market price is $7.00 or above. If this measured market price is not achieved by the fourth anniversary of the award, these RSUs will be forfeited.

F4 · derivative.exercise_date: Represents a grant of RSUs that may be earned based on the achievement of market price goals, which will be measured at the average closing price of ISGs common stock over any ten consecutive trading day period beginning with the first anniversary of the award. 100% of the number of RSUs will be earned if the measured market price is $7.00 or above. If this measured market price is not achieved by the fourth anniversary of the award, these RSUs will be forfeited.

SEC source: 0001415889-23-013025 · form4-09062023_050903.xml · nonDerivative · entry 3

Sherrick Michael A. · CIK 0001989706 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 209,778

F3 · kind: Represents restricted stock units (RSUs)granted to the reporting person pursuant to the Information Services Group, Inc. Amended and Restated 2007 Equity and Incentive Award Plan, which will vest on September 1, 2024.

SEC source: 0001415889-23-013025 · form4-09062023_050903.xml · nonDerivative · entry 2

Sherrick Michael A. · CIK 0001989706 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 190,132

F2 · kind: Represents restricted stock units (RSUs)granted to the reporting person pursuant to the Information Services Group, Inc. Amended and Restated 2007 Equity and Incentive Award Plan, which will vest on of September 1, 2026.

SEC source: 0001415889-23-013025 · form4-09062023_050903.xml · nonDerivative · entry 1

Sherrick Michael A. · CIK 0001989706 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,132

F1 · kind: Represents restricted stock units (RSUs)granted to the reporting person pursuant to the Information Services Group, Inc. Amended and Restated 2007 Equity and Incentive Award Plan, which will vest in 4 equal installments on each of the first, second, third and fourth anniversaries of September 1, 2023.

SEC source: 0001415889-23-012839 · form4-08312023_040810.xml · nonDerivative · entry 3

Lavieri Todd D. · CIK 0001760914 · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 886,721

SEC source: 0001415889-23-012839 · form4-08312023_040810.xml · nonDerivative · entry 2

Lavieri Todd D. · CIK 0001760914 · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 901,721

SEC source: 0001415889-23-012806 · form4-08302023_090857.xml · nonDerivative · entry 2

CONNORS MICHAEL P · CIK 0001249201 · Director · CHAIRMAN & CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,213,042

F1 · kind: Sale is pursuant to a written stock selling plan in accordance with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended, which was previously disclosed in the Issuer's Current Report on Form 8-K filed on March 21, 2023.

SEC source: 0001415889-23-012839 · form4-08312023_040810.xml · nonDerivative · entry 1

Lavieri Todd D. · CIK 0001760914 · VICE CHAIRMAN

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 911,721