STEP

SEC source: 0001796022-22-000063 · wf-form4_167123393692600.xml · nonDerivative · entry 1

Park David Y · CIK 0001822773 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,231

F1 · price: This transaction was effected in multiple trades at prices ranging from $27.35 to $27.43. 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: 0001796022-22-000058 · wf-form4_166812451604380.xml · nonDerivative · entry 3

Lim James · CIK 0001543577 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sanctuary Bay LLC

Disclosed balance after: 6,913,886

F3 · price: The sales reported in this Form 4 were effected in multiple trades at prices ranging from $29.77 to $31.18. 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: 0001796022-22-000058 · wf-form4_166812451604380.xml · nonDerivative · entry 2

Lim James · CIK 0001543577 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sanctuary Bay LLC

Disclosed balance after: 7,349,886

F2 · price: The sales reported in this Form 4 were effected in multiple trades at prices ranging from $28.85 to $29.66. 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: 0001796022-22-000058 · wf-form4_166812451604380.xml · nonDerivative · entry 1

Lim James · CIK 0001543577 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sanctuary Bay LLC

Disclosed balance after: 7,383,886

F1 · price: The sales reported in this Form 4 were effected in multiple trades at prices ranging from $29.39 to $29.97. 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: 0001796022-22-000049 · wf-form4_166483277293837.xml · nonDerivative · entry 1

Park David Y · CIK 0001822773 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,231

F1 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the release of 7,825 vested restricted stock units on September 30, 2022.

SEC source: 0001796022-22-000046 · wf-form4_166328326242007.xml · nonDerivative · entry 1

Brown Valerie Gay · CIK 0001855387 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,049

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 as compensation for the Reporting Person's service on the Issuer's board of directors. The award vests in full on the earlier of the first anniversary of the grant date or the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service to the Issuer.

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 as compensation for the Reporting Person's service on the Issuer's board of directors. The award vests in full on the earlier of the first anniversary of the grant date or the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service to the Issuer.

SEC source: 0001796022-22-000047 · wf-form4_166328333478199.xml · nonDerivative · entry 1

Hoffmeister David F · CIK 0001305975 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,036

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 as compensation for the Reporting Person's service on the Issuer's board of directors. The award vests in full on the earlier of the first anniversary of the grant date or the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service to the Issuer.

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 as compensation for the Reporting Person's service on the Issuer's board of directors. The award vests in full on the earlier of the first anniversary of the grant date or the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service to the Issuer.

SEC source: 0001796022-22-000043 · wf-form4_166328161307812.xml · nonDerivative · entry 1

Raymond Anne L · CIK 0001822576 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,993

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 as compensation for the Reporting Person's service on the Issuer's board of directors. The award vests in full on the earlier of the first anniversary of the grant date or the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service to the Issuer.

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 as compensation for the Reporting Person's service on the Issuer's board of directors. The award vests in full on the earlier of the first anniversary of the grant date or the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service to the Issuer.

SEC source: 0001796022-22-000013 · wf-form4_164505179206123.xml · nonDerivative · entry 1

McCabe Michael I · CIK 0001822880 · Director · Head of Strategy · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,905

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, 2023, 2024, 2025 and 2026, 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, 2023, 2024, 2025 and 2026, subject to the Reporting Person's continued employment through the applicable vesting date.

SEC source: 0001796022-22-000017 · wf-form4_164505213705959.xml · nonDerivative · entry 1

Park David Y · CIK 0001822773 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,111

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, 2023, 2024, 2025 and 2026, 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, 2023, 2024, 2025 and 2026, subject to the Reporting Person's continued employment through the applicable vesting date.

SEC source: 0001796022-22-000016 · wf-form4_164505205543340.xml · nonDerivative · entry 1

Ment Jason P · CIK 0001822643 · See remarks · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 76,761

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, 2023, 2024, 2025 and 2026, 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, 2023, 2024, 2025 and 2026, subject to the Reporting Person's continued employment through the applicable vesting date.

SEC source: 0001796022-22-000015 · wf-form4_164505195339032.xml · nonDerivative · entry 1

Randel Johnny D · CIK 0001821981 · Chief Financial Officer · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,205

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, 2023, 2024, 2025 and 2026, 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, 2023, 2024, 2025 and 2026, subject to the Reporting Person's continued employment through the applicable vesting date.

SEC source: 0001796022-22-000014 · wf-form4_164505188282810.xml · nonDerivative · entry 1

Hart Scott W · CIK 0001821974 · Director · Chief Executive Officer · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,191

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, 2023, 2024, 2025 and 2026, 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, 2023, 2024, 2025 and 2026, subject to the Reporting Person's continued employment through the applicable vesting date.

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: 0001394221-21-000002 · primary_doc.xml · derivative · entry 4

ARG Private Equity, LLC · CIK 0001585937 · 10% owner

ARGO Holdings, LLC · CIK 0001394221 · 10% owner

KAISER GEORGE B · CIK 0001163432 · 10% owner

Mitchell Steven R · CIK 0001610279 · Director · 10% owner

Waldo Robert · CIK 0001728668 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,662,708

Underlying: Class A Common Stock · 1,330,336 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.

F4 · derivative.exercise_price: The Class B Units 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 November 18, 2021, the Reporting Person exchanged 1,330,336 Class B Units of StepStone Group LP for 1,330,336 shares of Class A Common Stock. In connection with the exchange, 1,330,336 shares of Class B Common Stock were automatically redeemed and cancelled.

F4 · price: The Class B Units 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.

F4 · derivative.exercise_date: The Class B Units 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.

F4 · derivative.expiration_date: The Class B Units 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 · ownership.direct: 27,500 of the Class A Common Stock securities are held of record by Steven R. Mitchell. Each of ARG Private Equity, LLC, ARGO Holdings, LLC, George Kaiser and Robert A. Waldo disclaims beneficial ownership of these securities to the extent it or he does not have a pecuniary interest therein. 25,000 of the Class A Common Stock securities are held of record by Robert A. Waldo. Each of ARG Private Equity, LLC, ARGO Holdings, LLC, George Kaiser and Steven R. Mitchell disclaims beneficial ownership of these securities to the extent it or he does not have a pecuniary interest therein.

F3 · ownership.direct: The remaining securities are held of record by ARGO Holdings, LLC. ARGO Holdings, LLC is managed by ARG Private Equity, LLC Steven R. Mitchell has a derivative interest in ARG Private Equity, LLC. Robert A. Waldo is a manager and Vice President of ARG Private Equity, LLC and has a derivative interest therein. George B. Kaiser is the sole member of ARG Private Equity, LLC. Each of Steven R. Mitchell, Robert A. Waldo and George B. Kaiser disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities and Exchange Act of 1934, as amended, except to the extent of his pecuniary interest therein, if any.

SEC source: 0001394221-21-000002 · primary_doc.xml · nonDerivative · entry 3

ARG Private Equity, LLC · CIK 0001585937 · 10% owner

ARGO Holdings, LLC · CIK 0001394221 · 10% owner

KAISER GEORGE B · CIK 0001163432 · 10% owner

Mitchell Steven R · CIK 0001610279 · Director · 10% owner

Waldo Robert · CIK 0001728668 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,500

F5 · kind: On November 18, 2021, the Reporting Person sold shares of Class A Common Stock in a secondary offering of Class A Common Stock by certain selling stockholders of the Issuer.

F2 · ownership.direct: 27,500 of the Class A Common Stock securities are held of record by Steven R. Mitchell. Each of ARG Private Equity, LLC, ARGO Holdings, LLC, George Kaiser and Robert A. Waldo disclaims beneficial ownership of these securities to the extent it or he does not have a pecuniary interest therein. 25,000 of the Class A Common Stock securities are held of record by Robert A. Waldo. Each of ARG Private Equity, LLC, ARGO Holdings, LLC, George Kaiser and Steven R. Mitchell disclaims beneficial ownership of these securities to the extent it or he does not have a pecuniary interest therein.

F3 · ownership.direct: The remaining securities are held of record by ARGO Holdings, LLC. ARGO Holdings, LLC is managed by ARG Private Equity, LLC Steven R. Mitchell has a derivative interest in ARG Private Equity, LLC. Robert A. Waldo is a manager and Vice President of ARG Private Equity, LLC and has a derivative interest therein. George B. Kaiser is the sole member of ARG Private Equity, LLC. Each of Steven R. Mitchell, Robert A. Waldo and George B. Kaiser disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities and Exchange Act of 1934, as amended, except to the extent of his pecuniary interest therein, if any.

SEC source: 0001394221-21-000002 · primary_doc.xml · nonDerivative · entry 2

ARG Private Equity, LLC · CIK 0001585937 · 10% owner

ARGO Holdings, LLC · CIK 0001394221 · 10% owner

KAISER GEORGE B · CIK 0001163432 · 10% owner

Mitchell Steven R · CIK 0001610279 · Director · 10% owner

Waldo Robert · CIK 0001728668 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,382,836

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 November 18, 2021, the Reporting Person exchanged 1,330,336 Class B Units of StepStone Group LP for 1,330,336 shares of Class A Common Stock. In connection with the exchange, 1,330,336 shares of Class B Common Stock were automatically redeemed and cancelled.

F4 · price: The Class B Units 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 · ownership.direct: 27,500 of the Class A Common Stock securities are held of record by Steven R. Mitchell. Each of ARG Private Equity, LLC, ARGO Holdings, LLC, George Kaiser and Robert A. Waldo disclaims beneficial ownership of these securities to the extent it or he does not have a pecuniary interest therein. 25,000 of the Class A Common Stock securities are held of record by Robert A. Waldo. Each of ARG Private Equity, LLC, ARGO Holdings, LLC, George Kaiser and Steven R. Mitchell disclaims beneficial ownership of these securities to the extent it or he does not have a pecuniary interest therein.

F3 · ownership.direct: The remaining securities are held of record by ARGO Holdings, LLC. ARGO Holdings, LLC is managed by ARG Private Equity, LLC Steven R. Mitchell has a derivative interest in ARG Private Equity, LLC. Robert A. Waldo is a manager and Vice President of ARG Private Equity, LLC and has a derivative interest therein. George B. Kaiser is the sole member of ARG Private Equity, LLC. Each of Steven R. Mitchell, Robert A. Waldo and George B. Kaiser disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities and Exchange Act of 1934, as amended, except to the extent of his pecuniary interest therein, if any.

SEC source: 0001394221-21-000002 · primary_doc.xml · nonDerivative · entry 1

ARG Private Equity, LLC · CIK 0001585937 · 10% owner

ARGO Holdings, LLC · CIK 0001394221 · 10% owner

KAISER GEORGE B · CIK 0001163432 · 10% owner

Mitchell Steven R · CIK 0001610279 · Director · 10% owner

Waldo Robert · CIK 0001728668 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,662,708

F1 · kind: On November 18, 2021, the Reporting Person exchanged 1,330,336 Class B Units of StepStone Group LP for 1,330,336 shares of Class A Common Stock. In connection with the exchange, 1,330,336 shares of Class B Common Stock were automatically redeemed and cancelled.

F2 · ownership.direct: 27,500 of the Class A Common Stock securities are held of record by Steven R. Mitchell. Each of ARG Private Equity, LLC, ARGO Holdings, LLC, George Kaiser and Robert A. Waldo disclaims beneficial ownership of these securities to the extent it or he does not have a pecuniary interest therein. 25,000 of the Class A Common Stock securities are held of record by Robert A. Waldo. Each of ARG Private Equity, LLC, ARGO Holdings, LLC, George Kaiser and Steven R. Mitchell disclaims beneficial ownership of these securities to the extent it or he does not have a pecuniary interest therein.

F3 · ownership.direct: The remaining securities are held of record by ARGO Holdings, LLC. ARGO Holdings, LLC is managed by ARG Private Equity, LLC Steven R. Mitchell has a derivative interest in ARG Private Equity, LLC. Robert A. Waldo is a manager and Vice President of ARG Private Equity, LLC and has a derivative interest therein. George B. Kaiser is the sole member of ARG Private Equity, LLC. Each of Steven R. Mitchell, Robert A. Waldo and George B. Kaiser disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities and Exchange Act of 1934, as amended, except to the extent of his pecuniary interest therein, if any.

SEC source: 0001796022-21-000111 · wf-form4_163762114918779.xml · derivative · entry 8

McCabe Michael I · CIK 0001822880 · Director · Head of Strategy · See remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 1,187,416

Underlying: Class A Common Stock · 332,584 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.

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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer are automatically redeemed and cancelled.

F1 · kind: On November 18, 2021, the Reporting Person exchanged 332,584 Class B Units of StepStone Group LP (the "Partnership") held directly for 332,584 shares of Class A Common Stock and 332,584 Class B Units of the Partnership held by a trust for 332,584 shares of Class A common stock. In connection with each exchange, 332,584 shares of Class B Common Stock were 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer are automatically redeemed and cancelled.

SEC source: 0001796022-21-000111 · wf-form4_163762114918779.xml · derivative · entry 7

McCabe Michael I · CIK 0001822880 · Director · Head of Strategy · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,406,142

Underlying: Class A Common Stock · 332,584 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.

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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer are automatically redeemed and cancelled.

F1 · kind: On November 18, 2021, the Reporting Person exchanged 332,584 Class B Units of StepStone Group LP (the "Partnership") held directly for 332,584 shares of Class A Common Stock and 332,584 Class B Units of the Partnership held by a trust for 332,584 shares of Class A common stock. In connection with each exchange, 332,584 shares of Class B Common Stock were 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer are automatically redeemed and cancelled.

SEC source: 0001796022-21-000111 · wf-form4_163762114918779.xml · nonDerivative · entry 6

McCabe Michael I · CIK 0001822880 · Director · Head of Strategy · See remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

F3 · kind: On November 18, 2021, the Reporting Person sold shares of Class A Common Stock in a secondary offering of Class A Common Stock by certain selling stockholders of the Issuer.

SEC source: 0001796022-21-000111 · wf-form4_163762114918779.xml · nonDerivative · entry 5

McCabe Michael I · CIK 0001822880 · Director · Head of Strategy · See remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 332,584

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 November 18, 2021, the Reporting Person exchanged 332,584 Class B Units of StepStone Group LP (the "Partnership") held directly for 332,584 shares of Class A Common Stock and 332,584 Class B Units of the Partnership held by a trust for 332,584 shares of Class A common stock. In connection with each exchange, 332,584 shares of Class B Common Stock were 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer are automatically redeemed and cancelled.

SEC source: 0001796022-21-000111 · wf-form4_163762114918779.xml · nonDerivative · entry 4

McCabe Michael I · CIK 0001822880 · Director · Head of Strategy · See remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 1,187,416

F1 · kind: On November 18, 2021, the Reporting Person exchanged 332,584 Class B Units of StepStone Group LP (the "Partnership") held directly for 332,584 shares of Class A Common Stock and 332,584 Class B Units of the Partnership held by a trust for 332,584 shares of Class A common stock. In connection with each exchange, 332,584 shares of Class B Common Stock were automatically redeemed and cancelled.

SEC source: 0001796022-21-000111 · wf-form4_163762114918779.xml · nonDerivative · entry 3

McCabe Michael I · CIK 0001822880 · Director · Head of Strategy · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F3 · kind: On November 18, 2021, the Reporting Person sold shares of Class A Common Stock in a secondary offering of Class A Common Stock by certain selling stockholders of the Issuer.

SEC source: 0001796022-21-000111 · wf-form4_163762114918779.xml · nonDerivative · entry 2

McCabe Michael I · CIK 0001822880 · Director · Head of Strategy · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 332,584

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 November 18, 2021, the Reporting Person exchanged 332,584 Class B Units of StepStone Group LP (the "Partnership") held directly for 332,584 shares of Class A Common Stock and 332,584 Class B Units of the Partnership held by a trust for 332,584 shares of Class A common stock. In connection with each exchange, 332,584 shares of Class B Common Stock were 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer are automatically redeemed and cancelled.

SEC source: 0001796022-21-000111 · wf-form4_163762114918779.xml · nonDerivative · entry 1

McCabe Michael I · CIK 0001822880 · Director · Head of Strategy · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,406,142

F1 · kind: On November 18, 2021, the Reporting Person exchanged 332,584 Class B Units of StepStone Group LP (the "Partnership") held directly for 332,584 shares of Class A Common Stock and 332,584 Class B Units of the Partnership held by a trust for 332,584 shares of Class A common stock. In connection with each exchange, 332,584 shares of Class B Common Stock were automatically redeemed and cancelled.

SEC source: 0001796022-21-000112 · wf-form4_163762135859440.xml · nonDerivative · entry 1

Lim James · CIK 0001543577 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sanctuary Bay LLC

Disclosed balance after: 7,413,886

F1 · kind: On November 18, 2021, the Reporting Person sold shares of Class A Common Stock in a secondary offering of Class A Common Stock by certain selling stockholders of the Issuer.

SEC source: 0001796022-21-000110 · wf-form4_163762089319433.xml · derivative · entry 4

Randel Johnny D · CIK 0001821981 · Chief Financial Officer · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,126,593

Underlying: Class A Common Stock · 133,033 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.

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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer are automatically redeemed and cancelled.

F1 · kind: On November 18, 2021, the Reporting Person exchanged 133,033 Class B Units of StepStone Group LP (the "Partnership") for 133,033 shares of Class A Common Stock. In connection with the exchange, 133,033 shares of Class B Common Stock were 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer are automatically redeemed and cancelled.

SEC source: 0001796022-21-000110 · wf-form4_163762089319433.xml · nonDerivative · entry 3

Randel Johnny D · CIK 0001821981 · Chief Financial Officer · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,300

F3 · kind: On November 18, 2021, the Reporting Person sold shares of Class A Common Stock in a secondary offering of Class A Common Stock by certain selling stockholders of the Issuer.

SEC source: 0001796022-21-000110 · wf-form4_163762089319433.xml · nonDerivative · entry 2

Randel Johnny D · CIK 0001821981 · Chief Financial Officer · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 164,333

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 November 18, 2021, the Reporting Person exchanged 133,033 Class B Units of StepStone Group LP (the "Partnership") for 133,033 shares of Class A Common Stock. In connection with the exchange, 133,033 shares of Class B Common Stock were 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer are automatically redeemed and cancelled.

SEC source: 0001796022-21-000110 · wf-form4_163762089319433.xml · nonDerivative · entry 1

Randel Johnny D · CIK 0001821981 · Chief Financial Officer · See remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,126,593

F1 · kind: On November 18, 2021, the Reporting Person exchanged 133,033 Class B Units of StepStone Group LP (the "Partnership") for 133,033 shares of Class A Common Stock. In connection with the exchange, 133,033 shares of Class B Common Stock were automatically redeemed and cancelled.

SEC source: 0001796022-21-000109 · wf-form4_163762082205165.xml · derivative · entry 5

Hart Scott W · CIK 0001821974 · Director · Co-Chief Executive Officer · See remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 3,041,291

Underlying: Class A Common Stock · 66,517 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.

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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer are automatically redeemed and cancelled.

F1 · kind: On November 18, 2021, the Reporting Person exchanged 66,517 Class B Units of StepStone Group LP (the "Partnership") for 66,517 shares of Class A Common Stock. In connection with the exchange, 66,517 shares of Class B Common Stock were 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer are automatically redeemed and cancelled.

SEC source: 0001796022-21-000109 · wf-form4_163762082205165.xml · nonDerivative · entry 3

Hart Scott W · CIK 0001821974 · Director · Co-Chief Executive Officer · See remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

F3 · kind: On November 18, 2021, the Reporting Person sold shares of Class A Common Stock in a secondary offering of Class A Common Stock by certain selling stockholders of the Issuer.

SEC source: 0001796022-21-000109 · wf-form4_163762082205165.xml · nonDerivative · entry 2

Hart Scott W · CIK 0001821974 · Director · Co-Chief Executive Officer · See remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 66,517

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 November 18, 2021, the Reporting Person exchanged 66,517 Class B Units of StepStone Group LP (the "Partnership") for 66,517 shares of Class A Common Stock. In connection with the exchange, 66,517 shares of Class B Common Stock were 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer are automatically redeemed and cancelled.

SEC source: 0001796022-21-000109 · wf-form4_163762082205165.xml · nonDerivative · entry 1

Hart Scott W · CIK 0001821974 · Director · Co-Chief Executive Officer · See remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 3,041,291

F1 · kind: On November 18, 2021, the Reporting Person exchanged 66,517 Class B Units of StepStone Group LP (the "Partnership") for 66,517 shares of Class A Common Stock. In connection with the exchange, 66,517 shares of Class B Common Stock were automatically redeemed and cancelled.

SEC source: 0001796022-21-000108 · wf-form4_163762071871244.xml · derivative · entry 4

Brem Monte M · CIK 0001822443 · Director · See remarks · See remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By MMAR HNL, LLC

Disclosed balance after: 2,905,953

Underlying: Class A Common Stock · 863,616 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.

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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer are automatically redeemed and cancelled.

F1 · kind: On November 18, 2021, the Reporting Person exchanged 863,616 Class B Units of StepStone Group LP (the "Partnership") for 863,616 shares of Class A Common Stock. In connection with the exchange, 863,616 shares of Class B Common Stock were 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer are automatically redeemed and cancelled.

SEC source: 0001796022-21-000108 · wf-form4_163762071871244.xml · nonDerivative · entry 3

Brem Monte M · CIK 0001822443 · Director · See remarks · See remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By MMAR HNL, LLC

Disclosed balance after: 0

F3 · kind: On November 18, 2021, the Reporting Person sold shares of Class A Common Stock in a secondary offering of Class A Common Stock by certain selling stockholders of the Issuer.

SEC source: 0001796022-21-000108 · wf-form4_163762071871244.xml · nonDerivative · entry 2

Brem Monte M · CIK 0001822443 · Director · See remarks · See remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By MMAR HNL, LLC

Disclosed balance after: 863,616

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 November 18, 2021, the Reporting Person exchanged 863,616 Class B Units of StepStone Group LP (the "Partnership") for 863,616 shares of Class A Common Stock. In connection with the exchange, 863,616 shares of Class B Common Stock were 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 of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer are automatically redeemed and cancelled.

SEC source: 0001796022-21-000108 · wf-form4_163762071871244.xml · nonDerivative · entry 1

Brem Monte M · CIK 0001822443 · Director · See remarks · See remarks

10b5-1 filing: Not disclosed

Ownership: Indirect · By MMAR HNL, LLC

Disclosed balance after: 2,905,953

F1 · kind: On November 18, 2021, the Reporting Person exchanged 863,616 Class B Units of StepStone Group LP (the "Partnership") for 863,616 shares of Class A Common Stock. In connection with the exchange, 863,616 shares of Class B Common Stock were automatically redeemed and cancelled.

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: 0001728668-21-000002 · primary_doc.xml · nonDerivative · entry 1

Waldo Robert · CIK 0001728668 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,018,044

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2 · price: The reporting person undertakes to provide to StepStone Group Inc., any security holder of StepStone Group Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (3) to this Form 4.

F3 · price: The price reported in Column 4 is a weighted price. The shares were sold in multiple transactions at prices ranging from $45.11 to 45.76, inclusive.

F4 · ownership.direct: 25,000 of the Class A Common Stock securities are held of record by the reporting person, who is a member of a "group" with ARG Private Equity, LLC, Argo Holdings, LLC (f/k/a Argonaut Holdings, L.L.C.), Sanford Energy, Inc., George Kaiser, and Steven R. Mitchell.

F5 · ownership.direct: The remaining securities are held of record by Argo Holdings, LLC. Argo Holdings, LLC is managed by ARG Private Equity, LLC. Steven R. Mitchell has a derivative interest in ARG Private Equity, LLC. Robert A. Waldo is a manager and Vice President of ARG Private Equity, LLC and has a derivative interest therein. George B. Kaiser is the sole member of ARG Private Equity, LLC. Each of Steven R. Mitchell, Robert A. Waldo and George B. Kaiser disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities and Exchange Act of 1934, as amended, except to the extent of his pecuniary interest therein, if any.