Keck Thomas

SEC source: 0001821978-26-000002 · wk-form4_1773788326.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,118

F1 · shares: Represents the number of shares of Class A Common Stock issued to the Reporting Person pursuant to an award of restricted stock units under the Issuer's 2020 Long Term Incentive Plan. The award vests in equal annual installments on each of February 14, 2027, 2028, 2029 and 2030, subject to the Reporting Person's continued employment through the applicable vesting date.

F1 · price: Represents the number of shares of Class A Common Stock issued to the Reporting Person pursuant to an award of restricted stock units under the Issuer's 2020 Long Term Incentive Plan. The award vests in equal annual installments on each of February 14, 2027, 2028, 2029 and 2030, subject to the Reporting Person's continued employment through the applicable vesting date.

SEC source: 0001193125-26-280948 · ownership.xml · derivative · entry 3

Keck Thomas · CIK 0001821978 · Portfolio Manager

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 871

Underlying: Class I Common Shares of Beneficial Intererest · 291 shares

Expires not disclosed

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

F1 · derivative.exercise_price: Each restricted share unit ("RSU") represents a contingent right to receive one Class I Common Shares of Beneficial Interest of the Issuer.

F2 · derivative.exercise_date: Reporting Person received a grant of RSUs from Stepstone Group LP under its Evergreen Fund Incentive Plan which vest in four substantially equal annual installments, and which commenced on February 14, 2026. Upon vesting, the Reporting Person directed the Class I Common Shares of Beneficial Interest to be issued into a trust where Reporting Person serves as trustee and beneficiary.

F2 · derivative.expiration_date: Reporting Person received a grant of RSUs from Stepstone Group LP under its Evergreen Fund Incentive Plan which vest in four substantially equal annual installments, and which commenced on February 14, 2026. Upon vesting, the Reporting Person directed the Class I Common Shares of Beneficial Interest to be issued into a trust where Reporting Person serves as trustee and beneficiary.

SEC source: 0001193125-26-280948 · ownership.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Portfolio Manager

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 291

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 restricted share unit ("RSU") represents a contingent right to receive one Class I Common Shares of Beneficial Interest of the Issuer.

F2 · price: Reporting Person received a grant of RSUs from Stepstone Group LP under its Evergreen Fund Incentive Plan which vest in four substantially equal annual installments, and which commenced on February 14, 2026. Upon vesting, the Reporting Person directed the Class I Common Shares of Beneficial Interest to be issued into a trust where Reporting Person serves as trustee and beneficiary.

SEC source: 0001821978-25-000003 · wk-form4_1759359220.xml · derivative · entry 7

Keck Thomas · CIK 0001821978 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Croft & Company LLC

Disclosed balance after: 30,623

Underlying: Class A Common Stock · 30,623 shares

Expires not disclosed

F2 · derivative.exercise_price: Class B Units of StepStone Group LP are exchangeable, on a one-for-one basis, for shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer will be automatically redeemed and cancelled.

F1 · kind: On September 30, 2025, the Reporting Person transferred 30,623 Class B Units of Stepstone Group LP, together with an equal number of shares of Class B Common Stock (collectively, the "Transferred Interest") to an entity (the "Transferee Entity") owned entirely by a trust established for the benefit of Reporting Person's immediate family (such transaction, the "Transfer"). Pursuant to the terms of the Transfer, the Reporting Person is required to retain the exclusive right to exercise or direct the exercise of voting control in respect of the Transferred Interests. Notwithstanding the foregoing, the Reporting Person disclaims all beneficial ownership of the Transferred Interests.

F1 · shares: On September 30, 2025, the Reporting Person transferred 30,623 Class B Units of Stepstone Group LP, together with an equal number of shares of Class B Common Stock (collectively, the "Transferred Interest") to an entity (the "Transferee Entity") owned entirely by a trust established for the benefit of Reporting Person's immediate family (such transaction, the "Transfer"). Pursuant to the terms of the Transfer, the Reporting Person is required to retain the exclusive right to exercise or direct the exercise of voting control in respect of the Transferred Interests. Notwithstanding the foregoing, the Reporting Person disclaims all beneficial ownership of the Transferred Interests.

F1 · price: On September 30, 2025, the Reporting Person transferred 30,623 Class B Units of Stepstone Group LP, together with an equal number of shares of Class B Common Stock (collectively, the "Transferred Interest") to an entity (the "Transferee Entity") owned entirely by a trust established for the benefit of Reporting Person's immediate family (such transaction, the "Transfer"). Pursuant to the terms of the Transfer, the Reporting Person is required to retain the exclusive right to exercise or direct the exercise of voting control in respect of the Transferred Interests. Notwithstanding the foregoing, the Reporting Person disclaims all beneficial ownership of the Transferred Interests.

F2 · derivative.exercise_date: Class B Units of StepStone Group LP are exchangeable, on a one-for-one basis, for shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer will be automatically redeemed and cancelled.

F2 · derivative.expiration_date: Class B Units of StepStone Group LP are exchangeable, on a one-for-one basis, for shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer will be automatically redeemed and cancelled.

SEC source: 0001821978-25-000003 · wk-form4_1759359220.xml · derivative · entry 6

Keck Thomas · CIK 0001821978 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 2,520,501

Underlying: Class A Common Stock · 30,623 shares

Expires not disclosed

F2 · derivative.exercise_price: Class B Units of StepStone Group LP are exchangeable, on a one-for-one basis, for shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer will be automatically redeemed and cancelled.

F1 · kind: On September 30, 2025, the Reporting Person transferred 30,623 Class B Units of Stepstone Group LP, together with an equal number of shares of Class B Common Stock (collectively, the "Transferred Interest") to an entity (the "Transferee Entity") owned entirely by a trust established for the benefit of Reporting Person's immediate family (such transaction, the "Transfer"). Pursuant to the terms of the Transfer, the Reporting Person is required to retain the exclusive right to exercise or direct the exercise of voting control in respect of the Transferred Interests. Notwithstanding the foregoing, the Reporting Person disclaims all beneficial ownership of the Transferred Interests.

F1 · shares: On September 30, 2025, the Reporting Person transferred 30,623 Class B Units of Stepstone Group LP, together with an equal number of shares of Class B Common Stock (collectively, the "Transferred Interest") to an entity (the "Transferee Entity") owned entirely by a trust established for the benefit of Reporting Person's immediate family (such transaction, the "Transfer"). Pursuant to the terms of the Transfer, the Reporting Person is required to retain the exclusive right to exercise or direct the exercise of voting control in respect of the Transferred Interests. Notwithstanding the foregoing, the Reporting Person disclaims all beneficial ownership of the Transferred Interests.

F1 · price: On September 30, 2025, the Reporting Person transferred 30,623 Class B Units of Stepstone Group LP, together with an equal number of shares of Class B Common Stock (collectively, the "Transferred Interest") to an entity (the "Transferee Entity") owned entirely by a trust established for the benefit of Reporting Person's immediate family (such transaction, the "Transfer"). Pursuant to the terms of the Transfer, the Reporting Person is required to retain the exclusive right to exercise or direct the exercise of voting control in respect of the Transferred Interests. Notwithstanding the foregoing, the Reporting Person disclaims all beneficial ownership of the Transferred Interests.

F2 · derivative.exercise_date: Class B Units of StepStone Group LP are exchangeable, on a one-for-one basis, for shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer will be automatically redeemed and cancelled.

F2 · derivative.expiration_date: Class B Units of StepStone Group LP are exchangeable, on a one-for-one basis, for shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer will be automatically redeemed and cancelled.

SEC source: 0001821978-25-000003 · wk-form4_1759359220.xml · nonDerivative · entry 2

Keck Thomas · CIK 0001821978 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Croft & Company LLC

Disclosed balance after: 30,623

F1 · kind: On September 30, 2025, the Reporting Person transferred 30,623 Class B Units of Stepstone Group LP, together with an equal number of shares of Class B Common Stock (collectively, the "Transferred Interest") to an entity (the "Transferee Entity") owned entirely by a trust established for the benefit of Reporting Person's immediate family (such transaction, the "Transfer"). Pursuant to the terms of the Transfer, the Reporting Person is required to retain the exclusive right to exercise or direct the exercise of voting control in respect of the Transferred Interests. Notwithstanding the foregoing, the Reporting Person disclaims all beneficial ownership of the Transferred Interests.

F1 · acquired: On September 30, 2025, the Reporting Person transferred 30,623 Class B Units of Stepstone Group LP, together with an equal number of shares of Class B Common Stock (collectively, the "Transferred Interest") to an entity (the "Transferee Entity") owned entirely by a trust established for the benefit of Reporting Person's immediate family (such transaction, the "Transfer"). Pursuant to the terms of the Transfer, the Reporting Person is required to retain the exclusive right to exercise or direct the exercise of voting control in respect of the Transferred Interests. Notwithstanding the foregoing, the Reporting Person disclaims all beneficial ownership of the Transferred Interests.

SEC source: 0001821978-25-000003 · wk-form4_1759359220.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 2,520,501

F1 · kind: On September 30, 2025, the Reporting Person transferred 30,623 Class B Units of Stepstone Group LP, together with an equal number of shares of Class B Common Stock (collectively, the "Transferred Interest") to an entity (the "Transferee Entity") owned entirely by a trust established for the benefit of Reporting Person's immediate family (such transaction, the "Transfer"). Pursuant to the terms of the Transfer, the Reporting Person is required to retain the exclusive right to exercise or direct the exercise of voting control in respect of the Transferred Interests. Notwithstanding the foregoing, the Reporting Person disclaims all beneficial ownership of the Transferred Interests.

F1 · acquired: On September 30, 2025, the Reporting Person transferred 30,623 Class B Units of Stepstone Group LP, together with an equal number of shares of Class B Common Stock (collectively, the "Transferred Interest") to an entity (the "Transferee Entity") owned entirely by a trust established for the benefit of Reporting Person's immediate family (such transaction, the "Transfer"). Pursuant to the terms of the Transfer, the Reporting Person is required to retain the exclusive right to exercise or direct the exercise of voting control in respect of the Transferred Interests. Notwithstanding the foregoing, the Reporting Person disclaims all beneficial ownership of the Transferred Interests.

SEC source: 0001796022-25-000029 · wk-form4_1742251918.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,966

F1 · shares: Represents the number of shares of Class A Common Stock issued to the Reporting Person pursuant to an award of restricted stock units under the Issuer's 2020 Long Term Incentive Plan. The award vests in equal annual installments on each of February 14, 2026, 2027, 2028 and 2029, subject to the Reporting Person's continued employment through the applicable vesting date.

F1 · price: Represents the number of shares of Class A Common Stock issued to the Reporting Person pursuant to an award of restricted stock units under the Issuer's 2020 Long Term Incentive Plan. The award vests in equal annual installments on each of February 14, 2026, 2027, 2028 and 2029, subject to the Reporting Person's continued employment through the applicable vesting date.

SEC source: 0001193125-26-280948 · ownership.xml · derivative · entry 2

Keck Thomas · CIK 0001821978 · Portfolio Manager

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,162

Underlying: Class I Common Shares of Beneficial Interest · 1,162 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted share unit ("RSU") represents a contingent right to receive one Class I Common Shares of Beneficial Interest of the Issuer.

F2 · kind: Reporting Person received a grant of RSUs from Stepstone Group LP under its Evergreen Fund Incentive Plan which vest in four substantially equal annual installments, and which commenced on February 14, 2026. Upon vesting, the Reporting Person directed the Class I Common Shares of Beneficial Interest to be issued into a trust where Reporting Person serves as trustee and beneficiary.

F2 · derivative.exercise_date: Reporting Person received a grant of RSUs from Stepstone Group LP under its Evergreen Fund Incentive Plan which vest in four substantially equal annual installments, and which commenced on February 14, 2026. Upon vesting, the Reporting Person directed the Class I Common Shares of Beneficial Interest to be issued into a trust where Reporting Person serves as trustee and beneficiary.

F2 · derivative.expiration_date: Reporting Person received a grant of RSUs from Stepstone Group LP under its Evergreen Fund Incentive Plan which vest in four substantially equal annual installments, and which commenced on February 14, 2026. Upon vesting, the Reporting Person directed the Class I Common Shares of Beneficial Interest to be issued into a trust where Reporting Person serves as trustee and beneficiary.

SEC source: 0001796022-25-000002 · wk-form4_1735854833.xml · derivative · entry 5

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 2,551,124

Underlying: Class A Common Stock · 50,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Class B Units of StepStone Group LP are exchangeable, on a one-for-one basis, for shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer will be automatically redeemed and cancelled.

F1 · price: Class B Units of StepStone Group LP are exchangeable, on a one-for-one basis, for shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer will be automatically redeemed and cancelled.

F1 · derivative.exercise_date: Class B Units of StepStone Group LP are exchangeable, on a one-for-one basis, for shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer will be automatically redeemed and cancelled.

F1 · derivative.expiration_date: Class B Units of StepStone Group LP are exchangeable, on a one-for-one basis, for shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer will be automatically redeemed and cancelled.

SEC source: 0001796022-25-000002 · wk-form4_1735854833.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 2,551,124

SEC source: 0000945621-24-000541 · form4.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Through the Thomas Keck and Antoinette Keck Trust

Disclosed balance after: 1,348,951.95

SEC source: 0001796022-24-000055 · wk-form4_1718227149.xml · nonDerivative · entry 3

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 100,750

F3 · price: The sales reported in this Form 4 were effected in multiple trades at prices ranging from $45.11 to $45.53. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-24-000055 · wk-form4_1718227149.xml · nonDerivative · entry 2

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 113,800

F2 · price: The sales reported in this Form 4 were effected in multiple trades at prices ranging from $45.00 to $45.10. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000945621-24-000515 · form4.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Through the Thomas Keck and Antoinette Keck Trust

Disclosed balance after: 899,850.15

SEC source: 0001796022-24-000055 · wk-form4_1718227149.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 118,739

F1 · price: The sales reported in this Form 4 were effected in multiple trades at prices ranging from $45.00 to $45.35. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0000945621-24-000502 · form4.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Through the Thomas Keck and Antoinette Keck Trust

Disclosed balance after: 750,000

SEC source: 0001796022-24-000051 · wk-form4_1717620230.xml · nonDerivative · entry 2

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 193,715

F2 · price: The sales reported in this Form 4 were effected in multiple trades at prices ranging from $45.00 to $45.04. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-24-000051 · wk-form4_1717620230.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 198,097

F1 · price: The sales reported in this Form 4 were effected in multiple trades at prices ranging from $45.00 to $45.14. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-24-000033 · wk-form4_1709079673.xml · nonDerivative · entry 2

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 200,750

F2 · price: This transaction was executed in multiple trades at prices ranging from $35.14 to $35.67. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-24-000033 · wk-form4_1709079673.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 204,444

F1 · price: This transaction was executed in multiple trades at prices ranging from $35.20 to $35.71. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-24-000029 · wk-form4_1708646705.xml · nonDerivative · entry 2

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 257,847

F2 · price: This transaction was executed in multiple trades at prices ranging from $35.03 to $35.85. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-24-000029 · wk-form4_1708646705.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 306,509

F1 · price: This transaction was executed in multiple trades at prices ranging from $35.00 to $35.21. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-24-000025 · wk-form4_1708121023.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,519

F1 · price: Represents the number of shares of Class A Common Stock issued to the Reporting Person pursuant to an award of restricted stock units under the Issuer's 2020 Long Term Incentive Plan. The award vests in equal annual installments on each of February 14, 2025, 2026, 2027 and 2028 subject to the Reporting Person's continued employment through the applicable vesting date.

SEC source: 0001796022-23-000014 · wf-form4_167598425795028.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 330,750

F1 · price: This transaction was executed pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $30.00 to $30.42. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-23-000004 · wf-form4_167572885269527.xml · nonDerivative · entry 3

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 348,972

F3 · price: This transaction was executed pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $30.00 to $30.27. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-23-000004 · wf-form4_167572885269527.xml · nonDerivative · entry 2

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 381,022

F2 · price: This transaction was executed pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $30.34 to $31.29. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-23-000004 · wf-form4_167572885269527.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 428,803

F1 · price: This transaction was executed pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $30.02 to $31.15. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-22-000060 · wf-form4_167106200619304.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 505,138

F1 · price: This transaction was executed pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $30.00 to $30.14. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-21-000114 · wf-form4_163970903075738.xml · derivative · entry 6

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 200,000

Underlying: Class A Common Stock · 450,000 shares

Expires not disclosed

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

F3 · derivative.exercise_price: The Class B Units of the Partnership are exchangeable, on a one-for-one basis, for shares of Class A Common Stock. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock will be automatically redeemed and cancelled.

F3 · price: The Class B Units of the Partnership are exchangeable, on a one-for-one basis, for shares of Class A Common Stock. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock will be automatically redeemed and cancelled.

F3 · derivative.exercise_date: The Class B Units of the Partnership are exchangeable, on a one-for-one basis, for shares of Class A Common Stock. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock will be automatically redeemed and cancelled.

F3 · derivative.expiration_date: The Class B Units of the Partnership are exchangeable, on a one-for-one basis, for shares of Class A Common Stock. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock will be automatically redeemed and cancelled.

SEC source: 0001796022-21-000114 · wf-form4_163970903075738.xml · nonDerivative · entry 2

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 200,000

F1 · kind: On December 15, 2021, the Reporting Person exchanged 450,000 Class B Units of StepStone Group LP (the "Partnership") for 450,000 shares of Class A Common Stock. In connection with the exchange, 450,000 shares of Class B Common Stock were automatically redeemed and cancelled.

SEC source: 0001796022-21-000114 · wf-form4_163970903075738.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 450,000

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: On December 15, 2021, the Reporting Person exchanged 450,000 Class B Units of StepStone Group LP (the "Partnership") for 450,000 shares of Class A Common Stock. In connection with the exchange, 450,000 shares of Class B Common Stock were automatically redeemed and cancelled.

F2 · shares: The Reporting Person entered into a lock-up agreement restricting the sale or transfer of securities of the Issuer in connection with a secondary offering of Class A Common Stock by certain selling stockholders of the Issuer. These securities remain subject to the restrictions of the lock-up agreement until the expiration of the lock-up period on February 13, 2022.

F3 · price: The Class B Units of the Partnership are exchangeable, on a one-for-one basis, for shares of Class A Common Stock. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock will be automatically redeemed and cancelled.

SEC source: 0001796022-22-000019 · wf-form5_164998165320614.xml · derivative · entry 5

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

Underlying: Class A Common Stock · 200,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Class B Units of StepStone Group LP are exchangeable, on a one-for-one basis, for shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer will be automatically redeemed and cancelled.

F2 · price: Class B Units of StepStone Group LP are exchangeable, on a one-for-one basis, for shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer will be automatically redeemed and cancelled.

F2 · derivative.exercise_date: Class B Units of StepStone Group LP are exchangeable, on a one-for-one basis, for shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer will be automatically redeemed and cancelled.

F2 · derivative.expiration_date: Class B Units of StepStone Group LP are exchangeable, on a one-for-one basis, for shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer will be automatically redeemed and cancelled.

SEC source: 0001796022-22-000019 · wf-form5_164998165320614.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

SEC source: 0001796022-21-000094 · wf-form4_163614938510440.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

F1 · price: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $46.25 to $47.78. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-21-000092 · wf-form4_163589761208888.xml · nonDerivative · entry 3

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 44,082

F3 · price: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $46.01 to $48.30. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-21-000092 · wf-form4_163589761208888.xml · nonDerivative · entry 2

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 87,679

F2 · price: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $46.59 to $47.79. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-21-000092 · wf-form4_163589761208888.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 150,230

F1 · price: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $46.55 to $47.90. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-21-000090 · wf-form4_163546255498788.xml · nonDerivative · entry 2

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 210,567

F2 · price: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $45.01 to $47.95. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-21-000090 · wf-form4_163546255498788.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 258,567

F1 · price: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $44.93 to $46.40. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-21-000088 · wf-form4_163529292613655.xml · nonDerivative · entry 3

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 288,332

F3 · price: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $44.31 to $46.38. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-21-000088 · wf-form4_163529292613655.xml · nonDerivative · entry 2

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 309,779

F2 · price: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $43.20 to $45.27. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-21-000088 · wf-form4_163529292613655.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 334,559

F1 · price: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $43.00 to $44.70. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-21-000082 · wf-form4_163486024640553.xml · nonDerivative · entry 3

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 352,611

F3 · price: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $43.01 to $43.39. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-21-000082 · wf-form4_163486024640553.xml · nonDerivative · entry 2

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 360,111

F2 · price: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $43.08 to $43.80. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-21-000082 · wf-form4_163486024640553.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 373,323

F1 · price: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $43.00 to $43.48. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-21-000077 · wf-form4_163460369138996.xml · nonDerivative · entry 3

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 379,223

F3 · price: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $43.00 to $43.14. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-21-000077 · wf-form4_163460369138996.xml · nonDerivative · entry 2

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 383,358

F2 · price: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $43.00 to $43.91. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-21-000077 · wf-form4_163460369138996.xml · nonDerivative · entry 1

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 397,300

F1 · price: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan in multiple trades at prices ranging from $43.00 to $43.09. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001796022-21-000070 · wf-form4_163339382404950.xml · derivative · entry 9

Keck Thomas · CIK 0001821978 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Old Salt Capital LLC

Disclosed balance after: 3,147,166

Underlying: Class A Common Stock · 3,147,166 shares

Expires not disclosed

F2 · derivative.exercise_price: The Class B Units of the Partnership are exchangeable, on a one-for-one basis, for shares of Class A Common Stock. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock are automatically redeemed and cancelled.

F2 · price: The Class B Units of the Partnership are exchangeable, on a one-for-one basis, for shares of Class A Common Stock. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock are automatically redeemed and cancelled.

F2 · derivative.exercise_date: The Class B Units of the Partnership are exchangeable, on a one-for-one basis, for shares of Class A Common Stock. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock are automatically redeemed and cancelled.

F2 · derivative.expiration_date: The Class B Units of the Partnership are exchangeable, on a one-for-one basis, for shares of Class A Common Stock. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock are automatically redeemed and cancelled.