Pfau Bruce

SEC source: 0001781412-25-000008 · form4-12122025_101217.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 189,909

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: 0001781412-25-000006 · form4-12092025_091201.xml · nonDerivative · entry 2

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 193,325

F2 · kind: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of December 9, 2025 (or earlier in the event of a change of control of ISG or such director's death or disability).

SEC source: 0001781412-25-000006 · form4-12092025_091201.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 172,630

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: 0001415889-25-021840 · form4-08142025_040801.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 175,419

F1 · kind: Represents a sale of shares of common stock to satisfy tax obligations.

SEC source: 0001415889-24-029284 · form4-12132024_041203.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 181,419

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: 0001415889-24-028875 · form4-12102024_101211.xml · nonDerivative · entry 3

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 184,834

F2 · kind: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of December 10, 2024 (or earlier in the event of a change of control of ISG or such director's death or disability).

SEC source: 0001415889-24-028875 · form4-12102024_101211.xml · nonDerivative · entry 2

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 151,232

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: 0001415889-24-028875 · form4-12102024_101211.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 153,052

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: 0001415889-24-027512 · form4-11222024_041101.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 155,840

F1 · kind: Represents a sale of shares of common stock to satisfy tax obligations.

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: 0001415889-23-016080 · 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: 0001415889-23-016080 · 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: 0001415889-23-016080 · 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: 0001415889-22-012386 · form4-12122022_091217.xml · nonDerivative · entry 2

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 142,943

F2 · 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: 0001415889-22-012386 · form4-12122022_091217.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 148,673

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: 0001415889-22-012239 · form4-12082022_091202.xml · nonDerivative · entry 2

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 152,747

F2 · 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: 0001415889-22-012239 · form4-12082022_091202.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 154,568

F1 · kind: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of December 06, 2022 (or earlier in the event of a change of control of ISG or such director's death or disability).

SEC source: 0001415889-22-009414 · form4-09062022_080901.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 130,667

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: 0001415889-22-006155 · form4-06062022_040627.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 132,704

F1 · shares: The sales were executed to satisfy tax obligations in connection with certain estate planning transactions.

F2 · price: Price reflected is the weighted-average purchase price for shares sold. The range of selling prices for the transactions reported was $6.62 to $6.68 per share. The reporting person undertakes to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.

SEC source: 0001415889-22-003126 · form4-03172022_010317.xml · nonDerivative · entry 3

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 146,264

F1 · shares: The purchase and sale were executed for tax and estate planning purposes in order to transfer the shares to a separate retirement account.

SEC source: 0001415889-22-003126 · form4-03172022_010317.xml · nonDerivative · entry 2

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 155,855

F1 · shares: The purchase and sale were executed for tax and estate planning purposes in order to transfer the shares to a separate retirement account.

F3 · price: Price reflected is the weighted-average purchase price for shares sold. The range of selling prices for the transactions reported was $7.02 to $7.08 per share. The reporting person undertakes to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.

SEC source: 0001415889-22-003126 · form4-03172022_010317.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 183,864

F1 · shares: The purchase and sale were executed for tax and estate planning purposes in order to transfer the shares to a separate retirement account.

F2 · price: Price reflected is the weighted-average purchase price for shares purchased. The range of purchase prices for the transactions reported was $6.72 to $6.97 per share. The reporting person undertakes to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.

SEC source: 0001415889-21-005805 · form4-12092021_011231.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 139,839

F1 · kind: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of December 07, 2021 (or earlier in the event of a change of control of ISG or such director's death or disability).

SEC source: 0001104659-20-134261 · tm2038242d3_4.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 124,234

F1 · security: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of December 08, 2020 (or earlier in the event of a change of control of ISG or such director's death or disability).

F1 · kind: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of December 08, 2020 (or earlier in the event of a change of control of ISG or such director's death or disability).

F1 · price: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of December 08, 2020 (or earlier in the event of a change of control of ISG or such director's death or disability).

SEC source: 0001104659-20-062610 · a4.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 89,313

F1 · security: Price reflected is the weighted-average purchase price for shares purchased. The range of purchase prices for the transactions reported was $2.0488 - $2.0949 per share. The reporting person undertakes to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.

F1 · price: Price reflected is the weighted-average purchase price for shares purchased. The range of purchase prices for the transactions reported was $2.0488 - $2.0949 per share. The reporting person undertakes to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each separate price.

SEC source: 0001104659-19-072285 · a4.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 79,313

F1 · security: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of December 10, 2019 (or earlier in the event of a change of control of ISG or such director's death or disability).

F1 · kind: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of December 10, 2019 (or earlier in the event of a change of control of ISG or such director's death or disability).

F1 · price: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of December 10, 2019 (or earlier in the event of a change of control of ISG or such director's death or disability).

SEC source: 0001104659-19-039073 · a4.xml · nonDerivative · entry 1

Pfau Bruce · CIK 0001781412 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,206

F1 · kind: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of July 1, 2019 (or earlier in the event of a change of control of ISG or such director's death or disability).

F1 · price: Grant of restricted stock units which vest in 3 equal installments on each of the first, second and third anniversaries of July 1, 2019 (or earlier in the event of a change of control of ISG or such director's death or disability).