SCL

SEC source: 0001127602-25-005773 · form4.xml · nonDerivative · entry 3

Moriarty Sean Thomas · CIK 0001716333 · VP & GM Surfactants

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,969.9285

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 · price: Each performance share represents a contingent right to receive one share of Stepan Company common stock. The performance shares vested upon the certification of Stepan Company achieving certain performance goals for the performance period ended December 31, 2024.

F4 · balance_after: Includes exempt acquisitions under Rule 16a-11 pursuant to dividend reinvestments since the date of the reporting person's last report.

F5 · balance_after: Includes exempt acquisitions under Rule 16b-3(c) and Rule 16b-3(d) since the date of the reporting person's last report.

SEC source: 0001127602-25-005771 · form4.xml · derivative · entry 6

Keiper Jason Scott · CIK 0001780101 · VP & Chief Tech & Sust Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,079 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 performance share represents a contingent right to receive one share of Stepan Company common stock. The performance shares vested upon the certification of Stepan Company achieving certain performance goals for the performance period ended December 31, 2024.

F3 · price: Each performance share represents a contingent right to receive one share of Stepan Company common stock. The performance shares vested upon the certification of Stepan Company achieving certain performance goals for the performance period ended December 31, 2024.

F3 · derivative.exercise_date: Each performance share represents a contingent right to receive one share of Stepan Company common stock. The performance shares vested upon the certification of Stepan Company achieving certain performance goals for the performance period ended December 31, 2024.

F3 · derivative.expiration_date: Each performance share represents a contingent right to receive one share of Stepan Company common stock. The performance shares vested upon the certification of Stepan Company achieving certain performance goals for the performance period ended December 31, 2024.

SEC source: 0001127602-25-005771 · form4.xml · nonDerivative · entry 3

Keiper Jason Scott · CIK 0001780101 · VP & Chief Tech & Sust Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,821.6774

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 · kind: Each performance share represents a contingent right to receive one share of Stepan Company common stock. The performance shares vested upon the certification of Stepan Company achieving certain performance goals for the performance period ended December 31, 2024.

F3 · price: Each performance share represents a contingent right to receive one share of Stepan Company common stock. The performance shares vested upon the certification of Stepan Company achieving certain performance goals for the performance period ended December 31, 2024.

F4 · balance_after: Includes exempt acquisitions under Rule 16b-3(c) and Rule 16b-3(d) since the date of the reporting person's last report.

F5 · balance_after: Includes exempt acquisitions under Rule 16a-11 pursuant to dividend reinvestments since the date of the reporting person's last report.

SEC source: 0001127602-25-005769 · form4.xml · derivative · entry 5

Hinrichsen Samuel S · CIK 0002043570 · VP & Interim CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 180 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 performance share represents a contingent right to receive one share of Stepan Company common stock. The performance shares vested upon the certification of Stepan Company achieving certain performance goals for the performance period ended December 31, 2024.

F3 · price: Each performance share represents a contingent right to receive one share of Stepan Company common stock. The performance shares vested upon the certification of Stepan Company achieving certain performance goals for the performance period ended December 31, 2024.

F3 · derivative.exercise_date: Each performance share represents a contingent right to receive one share of Stepan Company common stock. The performance shares vested upon the certification of Stepan Company achieving certain performance goals for the performance period ended December 31, 2024.

F3 · derivative.expiration_date: Each performance share represents a contingent right to receive one share of Stepan Company common stock. The performance shares vested upon the certification of Stepan Company achieving certain performance goals for the performance period ended December 31, 2024.

SEC source: 0001127602-25-005769 · form4.xml · nonDerivative · entry 3

Hinrichsen Samuel S · CIK 0002043570 · VP & Interim CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 432.825

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 · price: Each performance share represents a contingent right to receive one share of Stepan Company common stock. The performance shares vested upon the certification of Stepan Company achieving certain performance goals for the performance period ended December 31, 2024.

F4 · balance_after: Includes exempt acquisitions under Rule 16b-3(c) and Rule 16b-3(d) since the date of the reporting person's last report.

SEC source: 0001127602-25-005767 · form4.xml · derivative · entry 7

Kabbes David · CIK 0001632859 · VP GC & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,157 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 performance share represents a contingent right to receive one share of Stepan Company common stock. The performance shares vested upon the certification of Stepan Company achieving certain performance goals for the performance period ended December 31, 2024.

F1 · price: Each performance share represents a contingent right to receive one share of Stepan Company common stock. The performance shares vested upon the certification of Stepan Company achieving certain performance goals for the performance period ended December 31, 2024.

F1 · derivative.exercise_date: Each performance share represents a contingent right to receive one share of Stepan Company common stock. The performance shares vested upon the certification of Stepan Company achieving certain performance goals for the performance period ended December 31, 2024.

F1 · derivative.expiration_date: Each performance share represents a contingent right to receive one share of Stepan Company common stock. The performance shares vested upon the certification of Stepan Company achieving certain performance goals for the performance period ended December 31, 2024.

SEC source: 0001127602-25-005767 · form4.xml · nonDerivative · entry 3

Kabbes David · CIK 0001632859 · VP GC & Secretary

10b5-1 filing: No plan indicated

Ownership: Indirect · By DGK Living Trust

Disclosed balance after: 12,004.8917

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 · price: Each performance share represents a contingent right to receive one share of Stepan Company common stock. The performance shares vested upon the certification of Stepan Company achieving certain performance goals for the performance period ended December 31, 2024.

F2 · balance_after: Includes exempt acquisitions under Rule 16a-11 pursuant to dividend reinvestments since the date of the reporting person's last report.

F3 · balance_after: Reflects a transfer of 1056 shares from the reporting person's spouse's account to the reporting person's account.

SEC source: 0001127602-25-005783 · form4.xml · derivative · entry 10

Stepan Richard Finn · CIK 0001839533 · V.P. and Gen'l. Mgr., Polymers

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 341

Underlying: Restricted Stock Units · 341 shares

Expires 2026-02-14

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.

F5 · derivative.exercise_price: Each restrited stock unit ("RSU") represents a contingent right to receive one share of Stepan Company common stock.

F6 · derivative.exercise_date: Vests ratably over three years beginning on the date shown.

SEC source: 0001127602-25-005783 · form4.xml · nonDerivative · entry 2

Stepan Richard Finn · CIK 0001839533 · V.P. and Gen'l. Mgr., Polymers

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 218,332

F2 · kind: Withholding of shares to satisfy tax liability on the vesting of RSUs.

SEC source: 0001127602-25-005783 · form4.xml · nonDerivative · entry 1

Stepan Richard Finn · CIK 0001839533 · V.P. and Gen'l. Mgr., Polymers

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 218,450

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 restricted stock units ("RSUs") were settled in shares of common stock per the terms of the award.

SEC source: 0001127602-25-005775 · form4.xml · derivative · entry 6

Rojo Luis · CIK 0001738439 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 683

Underlying: Restricted Stock Units · 682 shares

Expires 2026-02-14

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.

F7 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Stepan Company common stock.

F8 · derivative.exercise_date: Vests ratably over three years beginning on the date shown.

SEC source: 0001127602-25-005775 · form4.xml · nonDerivative · entry 2

Rojo Luis · CIK 0001738439 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,561.901

F2 · kind: Withholding of shares to satisfy tax liability on the vesting of RSUs.

SEC source: 0001127602-25-005775 · form4.xml · nonDerivative · entry 1

Rojo Luis · CIK 0001738439 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,797.901

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 restricted stock units ("RSUs") were settled in shares of common stock per the terms of the award.

SEC source: 0001127602-25-005773 · form4.xml · derivative · entry 6

Moriarty Sean Thomas · CIK 0001716333 · VP & GM Surfactants

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 455

Underlying: Restricted Stock Units · 455 shares

Expires 2026-02-14

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.

F8 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Stepan Company common stock.

F9 · derivative.exercise_date: Vests ratably over three years beginning on the date shown.

SEC source: 0001127602-25-005773 · form4.xml · nonDerivative · entry 2

Moriarty Sean Thomas · CIK 0001716333 · VP & GM Surfactants

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,032.9285

F2 · kind: Withholding of shares to satisfy tax liability on the vesting of RSUs.

SEC source: 0001127602-25-005773 · form4.xml · nonDerivative · entry 1

Moriarty Sean Thomas · CIK 0001716333 · VP & GM Surfactants

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,190.9285

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 restricted stock units ("RSUs") were settled in shares of common stock per the terms of the award.

SEC source: 0001127602-25-005771 · form4.xml · derivative · entry 5

Keiper Jason Scott · CIK 0001780101 · VP & Chief Tech & Sust Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 266

Underlying: Restricted Stock Units · 265 shares

Expires 2026-02-14

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.

F6 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Stepan Company common stock.

F7 · derivative.exercise_date: Vests ratably over three years beginning on the date shown.

SEC source: 0001127602-25-005771 · form4.xml · nonDerivative · entry 2

Keiper Jason Scott · CIK 0001780101 · VP & Chief Tech & Sust Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,852.6774

F2 · kind: Withholding of shares to satisfy tax liability on the vesting of RSUs.

SEC source: 0001127602-25-005771 · form4.xml · nonDerivative · entry 1

Keiper Jason Scott · CIK 0001780101 · VP & Chief Tech & Sust Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,944.6774

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 restricted stock units ("RSUs") were settled in shares of common stock per the terms of the award.

SEC source: 0001127602-25-005769 · form4.xml · derivative · entry 4

Hinrichsen Samuel S · CIK 0002043570 · VP & Interim CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46

Underlying: Restricted Stock Units · 45 shares

Expires 2026-02-14

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.

F5 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Stepan Company common stock.

F1 · kind: The restricted stock units ("RSUs") were settled in shares of common stock per the terms of the award.

F6 · derivative.exercise_date: Vests ratably over three years beginning on the date shown.

SEC source: 0001127602-25-005769 · form4.xml · nonDerivative · entry 2

Hinrichsen Samuel S · CIK 0002043570 · VP & Interim CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 270.825

F2 · kind: Withholding of shares to satisfy tax liability on the vesting of RSUs.

SEC source: 0001127602-25-005769 · form4.xml · nonDerivative · entry 1

Hinrichsen Samuel S · CIK 0002043570 · VP & Interim CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 286.825

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 restricted stock units ("RSUs") were settled in shares of common stock per the terms of the award.

SEC source: 0001127602-25-005767 · form4.xml · derivative · entry 6

Kabbes David · CIK 0001632859 · VP GC & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 455

Underlying: Restricted Stock Units · 455 shares

Expires 2026-02-14

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

F4 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Stepan Company common stock.

F5 · derivative.exercise_date: Vests ratably over three years beginning on the date shown.

SEC source: 0001127602-25-005767 · form4.xml · nonDerivative · entry 2

Kabbes David · CIK 0001632859 · VP GC & Secretary

10b5-1 filing: No plan indicated

Ownership: Indirect · By DGK Living Trust

Disclosed balance after: 10,067.8917

SEC source: 0001127602-25-005767 · form4.xml · nonDerivative · entry 1

Kabbes David · CIK 0001632859 · VP GC & Secretary

10b5-1 filing: No plan indicated

Ownership: Indirect · By DGK Living Trust

Disclosed balance after: 10,225.8917

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: 0001127602-25-005326 · form4.xml · nonDerivative · entry 1

STEPAN F QUINN JR · CIK 0001229289 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 153,209.446

F1 · kind: Withholding of shares to satisfy the tax liability on the distribution of deferred performance shares, which were previously reported as directly held by the reporting person.

SEC source: 0001127602-25-003060 · form4.xml · derivative · entry 2

STEPAN F QUINN JR · CIK 0001229289 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,404.923

Underlying: Common Stock · 14,992.577 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 · security: Share Units are acquired under the Management Incentive Plan (As Amended and Restated Effective January 1, 2015) ("MIP"), a nonqualified deferred compensation plan which allows MIP participants to elect to defer all or a portion of their deferred compensation into accounts pursuant to MIP provisions.

F4 · derivative.exercise_price: Share Units convert on a one-for-one basis into Common Stock.

F1 · price: Each share unit was the economic equivalent of one share of Stepan Company common stock. On January 31, 2025, 14,992.577 of the reporting person's share units were settled for an equal number of shares of Stepan Company common stock.

F5 · derivative.exercise_date: Share Units are generally payable at end of employment, unless otherwise elected.

F5 · derivative.expiration_date: Share Units are generally payable at end of employment, unless otherwise elected.

F2 · balance_after: Includes exempt acquisitions under Rule 16a-11 pursuant to dividend reinvestments since the date of the reporting person's last report.

SEC source: 0001127602-25-003060 · form4.xml · nonDerivative · entry 1

STEPAN F QUINN JR · CIK 0001229289 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 243,510.717

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 · price: Each share unit was the economic equivalent of one share of Stepan Company common stock. On January 31, 2025, 14,992.577 of the reporting person's share units were settled for an equal number of shares of Stepan Company common stock.

F2 · balance_after: Includes exempt acquisitions under Rule 16a-11 pursuant to dividend reinvestments since the date of the reporting person's last report.

SEC source: 0001127602-25-000418 · form4.xml · derivative · entry 3

Hinrichsen Samuel S · CIK 0002043570 · VP & Interim CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Restricted Stock Units · 60 shares

Expires 2024-12-31

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

F4 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Stepan Company common stock.

F5 · derivative.exercise_date: Vests ratably over three years beginning on the date shown.

F6 · balance_after: Reflects a correction to the previously reported RSU balance. As a result of an administrative error, the reporting person's previous report overstated the number of RSUs held by 120 RSUs.

SEC source: 0001127602-25-000418 · form4.xml · nonDerivative · entry 2

Hinrichsen Samuel S · CIK 0002043570 · VP & Interim CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 238.134

F2 · kind: Withholding of shares to satisfy tax liability on the vesting of RSUs.

F3 · balance_after: Includes exempt acquisitions under Rule 16b-3(c) and Rule 16b-3(d) since the date of the reporting person's last report.

SEC source: 0001127602-25-000418 · form4.xml · nonDerivative · entry 1

Hinrichsen Samuel S · CIK 0002043570 · VP & Interim CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 256.134

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 restricted stock units ("RSUs") were settled in shares of common stock per the terms of the award.

SEC source: 0001127602-24-027427 · form4.xml · nonDerivative · entry 1

STEPAN F QUINN JR · CIK 0001229289 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,741

F1 · ownership.direct: Joint Tenancy with Spouse.

SEC source: 0001127602-24-027061 · form4.xml · derivative · entry 2

Haire Robert Joseph · CIK 0001976755 · EVP, Supply Chain

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,783

Underlying: Restricted Stock Units · 3,783 shares

Expires 2026-12-31

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Stepan Company common stock.

F3 · derivative.exercise_date: Vest ratably over two years beginning on the date shown.

SEC source: 0001127602-24-027052 · form4.xml · derivative · entry 6

Rojo Luis · CIK 0001738439 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,304

Underlying: Common Stock · 6,304 shares

Expires not disclosed

F6 · derivative.exercise_price: Each performance share represents a contingent right to receive one share of Stepan Company common stock.

F7 · derivative.exercise_date: The performance shares vest upon Stepan Company achieving certain performance goals for the performance period ending December 31, 2027.

F7 · derivative.expiration_date: The performance shares vest upon Stepan Company achieving certain performance goals for the performance period ending December 31, 2027.

SEC source: 0001127602-24-027052 · form4.xml · derivative · entry 5

Rojo Luis · CIK 0001738439 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,304

Underlying: Common Stock · 6,304 shares

Expires not disclosed

F6 · derivative.exercise_price: Each performance share represents a contingent right to receive one share of Stepan Company common stock.

F7 · derivative.exercise_date: The performance shares vest upon Stepan Company achieving certain performance goals for the performance period ending December 31, 2027.

F7 · derivative.expiration_date: The performance shares vest upon Stepan Company achieving certain performance goals for the performance period ending December 31, 2027.

SEC source: 0001127602-24-027052 · form4.xml · derivative · entry 4

Rojo Luis · CIK 0001738439 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,609

Underlying: Restricted Stock Units · 12,609 shares

Expires 2027-12-31

F4 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Stepan Company common stock.

F5 · derivative.exercise_date: Vests ratably over three years beginning on the date shown.

SEC source: 0001127602-24-026849 · form4.xml · nonDerivative · entry 3

STEPAN F QUINN JR · CIK 0001229289 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Family Trust IV

Disclosed balance after: 87,500

F2 · ownership.nature: The Reporting Person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for the purpose of Section 16 or for any other purpose.

SEC source: 0001127602-24-026849 · form4.xml · nonDerivative · entry 2

STEPAN F QUINN JR · CIK 0001229289 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,241

F1 · ownership.direct: Joint Tenancy with Spouse.

SEC source: 0001127602-24-026849 · form4.xml · nonDerivative · entry 1

STEPAN F QUINN JR · CIK 0001229289 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,741

F1 · ownership.direct: Joint Tenancy with Spouse.

SEC source: 0001127602-24-025761 · form4.xml · derivative · entry 4

Kabbes David · CIK 0001632859 · VP GC & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 508

Underlying: Restricted Stock Units · 254 shares

Expires 2026-10-16

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

F4 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Stepan Company common stock.

SEC source: 0001127602-24-025761 · form4.xml · nonDerivative · entry 2

Kabbes David · CIK 0001632859 · VP GC & Secretary

10b5-1 filing: No plan indicated

Ownership: Indirect · By DGK Living Trust

Disclosed balance after: 8,714.8917

F2 · kind: Withholding of shares to satisfy tax liability on the vesting of RSUs.

F3 · balance_after: Includes exempt acquisitions under Rule 16a-11 pursuant to dividend reinvestments since the date of the reporting person's last report.

SEC source: 0001127602-24-025761 · form4.xml · nonDerivative · entry 1

Kabbes David · CIK 0001632859 · VP GC & Secretary

10b5-1 filing: No plan indicated

Ownership: Indirect · By DGK Living Trust

Disclosed balance after: 8,789.8917

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 restricted stock units ("RSUs") were settled in shares of common stock per the terms of the award.

SEC source: 0001127602-24-022233 · form4.xml · nonDerivative · entry 1

Kabbes David · CIK 0001632859 · VP GC & Secretary

10b5-1 filing: No plan indicated

Ownership: Indirect · By Spouse

Disclosed balance after: 1,056

SEC source: 0001127602-24-015327 · form4.xml · derivative · entry 1

WEHMER EDWARD J · CIK 0001244290 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,945

Underlying: Common Stock · 1,396 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Stock Award represents the right to receive one share of issuer common stock.

F2 · derivative.exercise_date: Stock Awards are payable in shares pursuant to the director's election either following separation from service or after a specified age.

F2 · derivative.expiration_date: Stock Awards are payable in shares pursuant to the director's election either following separation from service or after a specified age.

SEC source: 0001127602-24-015324 · form4.xml · nonDerivative · entry 1

STEPAN F QUINN JR · CIK 0001229289 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 226,434.861

F1 · balance_after: Reflects the transfer of 22,916 shares from the reporting person's individual account to a joint account since the date of the reporting person's last report.

F2 · balance_after: Includes exempt acquisitions under Rule 16a-11 pursuant to dividend reinvestments since the date of the reporting person's last report.

SEC source: 0001127602-24-015286 · form4.xml · nonDerivative · entry 1

REED JAN STERN · CIK 0001124181 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,411

SEC source: 0001127602-24-015216 · form4.xml · nonDerivative · entry 1

Delgado Joaquin · CIK 0001465913 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,571

SEC source: 0001127602-24-015220 · form4.xml · nonDerivative · entry 1

Lewis Susan · CIK 0002012576 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,396

SEC source: 0001127602-24-015213 · form4.xml · nonDerivative · entry 1

Dearth Randall S. · CIK 0001418244 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,606

SEC source: 0001127602-24-015210 · form4.xml · derivative · entry 1

Burgess Lorinda · CIK 0001843912 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,396

Underlying: Common Stock · 1,396 shares

Expires not disclosed

F1 · derivative.exercise_price: Each stock award represents the right to receive one share of issuer common stock.

F2 · derivative.exercise_date: Deferred stock awards are payable in shares pursuant to the director's election either following separation from service or after a specified age.

F2 · derivative.expiration_date: Deferred stock awards are payable in shares pursuant to the director's election either following separation from service or after a specified age.