STGW

SEC source: 0001104659-23-026195 · tm237946-4_4seq1.xml · nonDerivative · entry 2

Leveton Jay · CIK 0001876913 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 501,220

F2 · shares: Represents restricted shares of Class A Common Stock of the issuer awarded to the Reporting Person on February 23, 2023. The restricted shares will vest on March 31, 2026, subject to the achievement of Company financial performance targets and the Reporting Person's continued service through such date.

SEC source: 0001104659-23-026195 · tm237946-4_4seq1.xml · nonDerivative · entry 1

Leveton Jay · CIK 0001876913 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 369,498

F1 · shares: Represents restricted shares of Class A Common Stock of the issuer awarded to the Reporting Person on February 23, 2023. The restricted shares will vest on February 23, 2024, subject to the Reporting Person's continued service through such date.

SEC source: 0001104659-23-026194 · tm237946-2_4seq1.xml · nonDerivative · entry 2

Greene Ryan · CIK 0001876911 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 218,705

F2 · shares: Represents restricted shares of Class A Common Stock of the issuer awarded to the Reporting Person on February 23, 2023. The restricted shares will vest on March 31, 2026, subject to the achievement of Company financial performance targets and the Reporting Person's continued service through such date.

SEC source: 0001104659-23-026194 · tm237946-2_4seq1.xml · nonDerivative · entry 1

Greene Ryan · CIK 0001876911 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 168,560

F1 · shares: Represents restricted shares of Class A Common Stock of the issuer awarded to the Reporting Person on February 23, 2023. The restricted shares will vest on February 23, 2024, subject to the Reporting Person's continued service through such date.

SEC source: 0001104659-23-026193 · tm237946-1_4seq1.xml · nonDerivative · entry 3

DIMAGGIO VINCENZO · CIK 0001808306 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 179,717

F3 · shares: Represents restricted shares of Class A Common Stock of the issuer awarded to the Reporting Person on February 23, 2023. The restricted shares will vest in two increments, one-third on November 17, 2024 and two-thirds on November 17, 2025, subject to the Reporting Person's continued service through such dates.

SEC source: 0001104659-23-026193 · tm237946-1_4seq1.xml · nonDerivative · entry 2

DIMAGGIO VINCENZO · CIK 0001808306 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 165,183

F2 · shares: Represents restricted shares of Class A Common Stock of the issuer awarded to the Reporting Person on February 23, 2023. The restricted shares will vest on March 31, 2026, subject to the achievement of Company financial performance targets and the Reporting Person's continued service through such date.

SEC source: 0001104659-23-026193 · tm237946-1_4seq1.xml · nonDerivative · entry 1

DIMAGGIO VINCENZO · CIK 0001808306 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 142,291

F1 · shares: Represents restricted shares of Class A Common Stock of the issuer awarded to the Reporting Person on February 23, 2023. The restricted shares will vest on February 23, 2024, subject to the Reporting Person's continued service through such date.

SEC source: 0001104659-23-026921 · tm237946-3_4seq1.xml · nonDerivative · entry 2

Lanuto Frank P · CIK 0001443237 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 613,490

F2 · shares: Represents restricted shares of Class A Common Stock of the issuer awarded to the Reporting Person on February 23, 2023. The restricted shares will vest on March 31, 2026, subject to the achievement of Company financial performance targets and the Reporting Person's continued service through such date.

SEC source: 0001104659-23-026921 · tm237946-3_4seq1.xml · nonDerivative · entry 1

Lanuto Frank P · CIK 0001443237 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 477,225

F1 · shares: Represents restricted shares of Class A Common Stock of the issuer awarded to the Reporting Person on February 23, 2023. The restricted shares will vest on February 23, 2024, subject to the Reporting Person's continued service through such date.

SEC source: 0001104659-23-001593 · tm232295-3_4seq1.xml · nonDerivative · entry 1

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,562,640

F1 · shares: Represents shares withheld by the issuer to satisfy tax withholding requirements on the nonreportable vesting of restricted stock.

SEC source: 0001104659-23-001591 · tm232295-2_4seq1.xml · nonDerivative · entry 1

Lanuto Frank P · CIK 0001443237 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 402,732

F1 · shares: Represents shares withheld by the issuer to satisfy tax withholding requirements on the nonreportable vesting of restricted stock.

SEC source: 0001104659-23-001590 · tm232295-1_4seq1.xml · nonDerivative · entry 1

DIMAGGIO VINCENZO · CIK 0001808306 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 107,952

F1 · shares: Represents shares withheld by the issuer to satisfy tax withholding requirements on the nonreportable vesting of restricted stock.

SEC source: 0001104659-23-026919 · tm237946d7_4a.xml · nonDerivative · entry 1

Lanuto Frank P · CIK 0001443237 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 404,732

F1 · shares: Represents shares withheld by the issuer to satisfy tax withholding requirements on the nonreportable vesting of restricted stock.

F2 · shares: On January 5, 2023, the reporting person filed a Form 4 that incorrectly stated the number of shares withheld by the issuer. This amendment corrects the number of shares withheld and the number of shares beneficially owned following the reported transaction.

F2 · balance_after: On January 5, 2023, the reporting person filed a Form 4 that incorrectly stated the number of shares withheld by the issuer. This amendment corrects the number of shares withheld and the number of shares beneficially owned following the reported transaction.

SEC source: 0001104659-23-000471 · tm2233403-2_4seq1.xml · derivative · entry 4

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 160,909,058

Underlying: Class A Common Stock · 3,466,624 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 Reporting Person is the controlling person of Stagwell Media LP ("Stagwell Media"). Stagwell Media directly holds 160,909,058 shares of Class C Common Stock of the Issuer. Stagwell Media is the manager of Stagwell Friends and Family LLC ("Stagwell Friends and Family"), which directly holds zero shares of Class C Common Stock of the Issuer following the reported transaction. The shares of Class C Common Stock are voting-only shares that have no economic interest in the Issuer and are not registered or listed shares. The holder of Class C Common Stock may, at its option, exchange its Class C Common Stock, together with its corresponding economic interest in a wholly-owned subsidiary of the Issuer (collectively, a "Paired Equity Interest"), for shares of Class A Common Stock on a one-for-one basis (i.e., one Paired Equity Interest for one share of Class A Common Stock).

F5 · derivative.exercise_price: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F4 · derivative.exercise_date: The Reporting Person is the controlling person of Stagwell Media LP ("Stagwell Media"). Stagwell Media directly holds 160,909,058 shares of Class C Common Stock of the Issuer. Stagwell Media is the manager of Stagwell Friends and Family LLC ("Stagwell Friends and Family"), which directly holds zero shares of Class C Common Stock of the Issuer following the reported transaction. The shares of Class C Common Stock are voting-only shares that have no economic interest in the Issuer and are not registered or listed shares. The holder of Class C Common Stock may, at its option, exchange its Class C Common Stock, together with its corresponding economic interest in a wholly-owned subsidiary of the Issuer (collectively, a "Paired Equity Interest"), for shares of Class A Common Stock on a one-for-one basis (i.e., one Paired Equity Interest for one share of Class A Common Stock).

F5 · derivative.exercise_date: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F6 · derivative.expiration_date: The right of any holder of the Class C Common Stock to exchange such shares for Class A Common Stock is not subject to an expiration date.

F4 · ownership.nature: The Reporting Person is the controlling person of Stagwell Media LP ("Stagwell Media"). Stagwell Media directly holds 160,909,058 shares of Class C Common Stock of the Issuer. Stagwell Media is the manager of Stagwell Friends and Family LLC ("Stagwell Friends and Family"), which directly holds zero shares of Class C Common Stock of the Issuer following the reported transaction. The shares of Class C Common Stock are voting-only shares that have no economic interest in the Issuer and are not registered or listed shares. The holder of Class C Common Stock may, at its option, exchange its Class C Common Stock, together with its corresponding economic interest in a wholly-owned subsidiary of the Issuer (collectively, a "Paired Equity Interest"), for shares of Class A Common Stock on a one-for-one basis (i.e., one Paired Equity Interest for one share of Class A Common Stock).

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001104659-23-000471 · tm2233403-2_4seq1.xml · nonDerivative · entry 2

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 26,502,414

F1 · kind: On December 31, 2022, Stagwell Media and Stagwell Friends and Family (each as defined and discussed in footnote 4 hereto) exchanged 3,466,624 Paired Equity Interests (as defined and discussed in footnote 4 hereto) for an equal number of shares of Class A Common Stock of the Issuer and distributed such shares to certain of their limited partners and members for no consideration.

F2 · ownership.nature: The Reporting Person is the controlling person of The Stagwell Group LLC ("Stagwell Group"). Stagwell Group directly holds 130,000 shares of Class A Common Stock of the Issuer. Stagwell Group is the manager of Stagwell Agency Holdings LLC, which directly holds 26,372,414 shares of Class A Common Stock of the Issuer. Amounts reported also reflect an aggregate of 3,466,624 shares of Class A Common Stock of the Issuer acquired upon the exchange of an equal number of Paired Equity Interests by Stagwell Media and Stagwell Friends and Family and distributed to limited partners and members of Stagwell Media and Stagwell Friends and Family for no consideration.

F3 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001104659-23-000471 · tm2233403-2_4seq1.xml · nonDerivative · entry 1

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 29,969,038

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: On December 31, 2022, Stagwell Media and Stagwell Friends and Family (each as defined and discussed in footnote 4 hereto) exchanged 3,466,624 Paired Equity Interests (as defined and discussed in footnote 4 hereto) for an equal number of shares of Class A Common Stock of the Issuer and distributed such shares to certain of their limited partners and members for no consideration.

F2 · ownership.nature: The Reporting Person is the controlling person of The Stagwell Group LLC ("Stagwell Group"). Stagwell Group directly holds 130,000 shares of Class A Common Stock of the Issuer. Stagwell Group is the manager of Stagwell Agency Holdings LLC, which directly holds 26,372,414 shares of Class A Common Stock of the Issuer. Amounts reported also reflect an aggregate of 3,466,624 shares of Class A Common Stock of the Issuer acquired upon the exchange of an equal number of Paired Equity Interests by Stagwell Media and Stagwell Friends and Family and distributed to limited partners and members of Stagwell Media and Stagwell Friends and Family for no consideration.

F3 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001104659-22-131399 · tm2233403-1_4seq1.xml · derivative · entry 4

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 164,375,682

Underlying: Class A Common Stock · 25,553 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 Reporting Person is the controlling person of Stagwell Media LP ("Stagwell Media"). Stagwell Media directly holds 160,909,058 shares of Class C Common Stock of the Issuer. Stagwell Media is the manager of Stagwell Friends and Family LLC ("Stagwell Friends and Family"), which directly holds 3,466,624 shares of Class C Common Stock of the Issuer. The shares of Class C Common Stock are voting-only shares that have no economic interest in the Issuer and are not registered or listed shares. The holder of Class C Common Stock may, at its option, exchange its Class C Common Stock, together with its corresponding economic interest in a wholly-owned subsidiary of the Issuer (collectively, a "Paired Equity Interest"), for shares of Class A Common Stock on a one-for-one basis (i.e., one Paired Equity Interest for one share of Class A Common Stock).

F5 · derivative.exercise_price: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F4 · derivative.exercise_date: The Reporting Person is the controlling person of Stagwell Media LP ("Stagwell Media"). Stagwell Media directly holds 160,909,058 shares of Class C Common Stock of the Issuer. Stagwell Media is the manager of Stagwell Friends and Family LLC ("Stagwell Friends and Family"), which directly holds 3,466,624 shares of Class C Common Stock of the Issuer. The shares of Class C Common Stock are voting-only shares that have no economic interest in the Issuer and are not registered or listed shares. The holder of Class C Common Stock may, at its option, exchange its Class C Common Stock, together with its corresponding economic interest in a wholly-owned subsidiary of the Issuer (collectively, a "Paired Equity Interest"), for shares of Class A Common Stock on a one-for-one basis (i.e., one Paired Equity Interest for one share of Class A Common Stock).

F5 · derivative.exercise_date: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F6 · derivative.expiration_date: The right of any holder of the Class C Common Stock to exchange such shares for Class A Common Stock is not subject to an expiration date.

F4 · ownership.nature: The Reporting Person is the controlling person of Stagwell Media LP ("Stagwell Media"). Stagwell Media directly holds 160,909,058 shares of Class C Common Stock of the Issuer. Stagwell Media is the manager of Stagwell Friends and Family LLC ("Stagwell Friends and Family"), which directly holds 3,466,624 shares of Class C Common Stock of the Issuer. The shares of Class C Common Stock are voting-only shares that have no economic interest in the Issuer and are not registered or listed shares. The holder of Class C Common Stock may, at its option, exchange its Class C Common Stock, together with its corresponding economic interest in a wholly-owned subsidiary of the Issuer (collectively, a "Paired Equity Interest"), for shares of Class A Common Stock on a one-for-one basis (i.e., one Paired Equity Interest for one share of Class A Common Stock).

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001104659-22-131399 · tm2233403-1_4seq1.xml · nonDerivative · entry 2

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 26,502,414

F1 · kind: On September 30, 2022, Stagwell Media and Stagwell Friends and Family (each as defined and discussed in footnote 4 hereto) exchanged 25,553 Paired Equity Interests (as defined and discussed in footnote 4 hereto) for an equal number of shares of Class A Common Stock of the Issuer and distributed such shares to certain of their limited partners and members for no consideration.

F2 · ownership.nature: The Reporting Person is the controlling person of The Stagwell Group LLC ("Stagwell Group"). Stagwell Group directly holds 130,000 shares of Class A Common Stock of the Issuer. Stagwell Group is the manager of Stagwell Agency Holdings LLC, which directly holds 26,372,414 shares of Class A Common Stock of the Issuer. Amounts reported also reflect an aggregate of 25,553 shares of Class A Common Stock of the Issuer acquired upon the exchange of an equal number of Paired Equity Interests by Stagwell Media and Stagwell Friends and Family and distributed to limited partners and members of Stagwell Media and Stagwell Friends and Family for no consideration.

F3 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001104659-22-131399 · tm2233403-1_4seq1.xml · nonDerivative · entry 1

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 26,527,967

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: On September 30, 2022, Stagwell Media and Stagwell Friends and Family (each as defined and discussed in footnote 4 hereto) exchanged 25,553 Paired Equity Interests (as defined and discussed in footnote 4 hereto) for an equal number of shares of Class A Common Stock of the Issuer and distributed such shares to certain of their limited partners and members for no consideration.

F2 · ownership.nature: The Reporting Person is the controlling person of The Stagwell Group LLC ("Stagwell Group"). Stagwell Group directly holds 130,000 shares of Class A Common Stock of the Issuer. Stagwell Group is the manager of Stagwell Agency Holdings LLC, which directly holds 26,372,414 shares of Class A Common Stock of the Issuer. Amounts reported also reflect an aggregate of 25,553 shares of Class A Common Stock of the Issuer acquired upon the exchange of an equal number of Paired Equity Interests by Stagwell Media and Stagwell Friends and Family and distributed to limited partners and members of Stagwell Media and Stagwell Friends and Family for no consideration.

F3 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001104659-22-097554 · tm2224994-1_4seq1.xml · derivative · entry 4

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 164,401,235

Underlying: Class A Common Stock · 25,553 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 Reporting Person is the controlling person of Stagwell Media LP ("Stagwell Media"). Stagwell Media directly holds 160,909,058 shares of Class C Common Stock of the Issuer. Stagwell Media is the manager of Stagwell Friends and Family LLC ("Stagwell Friends and Family"), which directly holds 3,492,177 shares of Class C Common Stock of the Issuer. The shares of Class C Common Stock are voting-only shares that have no economic interest in the Issuer and are not registered or listed shares. The holder of Class C Common Stock may, at its option, exchange its Class C Common Stock, together with its corresponding economic interest in a wholly-owned subsidiary of the Issuer (collectively, a "Paired Equity Interest"), for shares of Class A Common Stock on a one-for-one basis (i.e., one Paired Equity Interest for one share of Class A Common Stock).

F5 · derivative.exercise_price: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F4 · derivative.exercise_date: The Reporting Person is the controlling person of Stagwell Media LP ("Stagwell Media"). Stagwell Media directly holds 160,909,058 shares of Class C Common Stock of the Issuer. Stagwell Media is the manager of Stagwell Friends and Family LLC ("Stagwell Friends and Family"), which directly holds 3,492,177 shares of Class C Common Stock of the Issuer. The shares of Class C Common Stock are voting-only shares that have no economic interest in the Issuer and are not registered or listed shares. The holder of Class C Common Stock may, at its option, exchange its Class C Common Stock, together with its corresponding economic interest in a wholly-owned subsidiary of the Issuer (collectively, a "Paired Equity Interest"), for shares of Class A Common Stock on a one-for-one basis (i.e., one Paired Equity Interest for one share of Class A Common Stock).

F5 · derivative.exercise_date: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F6 · derivative.expiration_date: The right of any holder of the Class C Common Stock to exchange such shares for Class A Common Stock is not subject to an expiration date.

F4 · ownership.nature: The Reporting Person is the controlling person of Stagwell Media LP ("Stagwell Media"). Stagwell Media directly holds 160,909,058 shares of Class C Common Stock of the Issuer. Stagwell Media is the manager of Stagwell Friends and Family LLC ("Stagwell Friends and Family"), which directly holds 3,492,177 shares of Class C Common Stock of the Issuer. The shares of Class C Common Stock are voting-only shares that have no economic interest in the Issuer and are not registered or listed shares. The holder of Class C Common Stock may, at its option, exchange its Class C Common Stock, together with its corresponding economic interest in a wholly-owned subsidiary of the Issuer (collectively, a "Paired Equity Interest"), for shares of Class A Common Stock on a one-for-one basis (i.e., one Paired Equity Interest for one share of Class A Common Stock).

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001104659-22-097554 · tm2224994-1_4seq1.xml · nonDerivative · entry 2

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 26,502,414

F1 · kind: On August 31, 2022, Stagwell Media and Stagwell Friends and Family (each as defined and discussed in footnote 4 hereto) exchanged 25,553 Paired Equity Interests (as defined and discussed in footnote 4 hereto) for an equal number of shares of Class A Common Stock of the Issuer and distributed such shares to certain of their limited partners and members for no consideration.

F2 · ownership.nature: The Reporting Person is the controlling person of The Stagwell Group LLC ("Stagwell Group"). Stagwell Group directly holds 130,000 shares of Class A Common Stock of the Issuer. Stagwell Group is the manager of Stagwell Agency Holdings LLC, which directly holds 26,372,414 shares of Class A Common Stock of the Issuer. Amounts reported also reflect an aggregate of 25,553 shares of Class A Common Stock of the Issuer acquired upon the exchange of an equal number of Paired Equity Interests by Stagwell Media and Stagwell Friends and Family and distributed to limited partners and members of Stagwell Media and Stagwell Friends and Family for no consideration.

F3 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001104659-22-097554 · tm2224994-1_4seq1.xml · nonDerivative · entry 1

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 26,527,967

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: On August 31, 2022, Stagwell Media and Stagwell Friends and Family (each as defined and discussed in footnote 4 hereto) exchanged 25,553 Paired Equity Interests (as defined and discussed in footnote 4 hereto) for an equal number of shares of Class A Common Stock of the Issuer and distributed such shares to certain of their limited partners and members for no consideration.

F2 · ownership.nature: The Reporting Person is the controlling person of The Stagwell Group LLC ("Stagwell Group"). Stagwell Group directly holds 130,000 shares of Class A Common Stock of the Issuer. Stagwell Group is the manager of Stagwell Agency Holdings LLC, which directly holds 26,372,414 shares of Class A Common Stock of the Issuer. Amounts reported also reflect an aggregate of 25,553 shares of Class A Common Stock of the Issuer acquired upon the exchange of an equal number of Paired Equity Interests by Stagwell Media and Stagwell Friends and Family and distributed to limited partners and members of Stagwell Media and Stagwell Friends and Family for no consideration.

F3 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001104659-22-092285 · tm2223711-6_4seq1.xml · nonDerivative · entry 3

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,755,847

F4 · shares: Represents 593,031 restricted shares of Class A Common Stock of the Issuer awarded to the Reporting Person on August 15, 2022. The restricted shares will vest on March 31, 2025, subject to the achievement of financial performance targets and the Reporting Person's continued service through such date.

SEC source: 0001104659-22-092284 · tm2223711-5_4seq1.xml · nonDerivative · entry 1

McElligott Peter · CIK 0001917834 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,940

F1 · shares: Represents 22,379 restricted shares of Class A Common Stock of the Issuer awarded to the Reporting Person on August 15, 2022. The restricted shares will vest on March 31, 2025, subject to the achievement of financial performance targets and the Reporting Person's continued service through such date.

SEC source: 0001104659-22-092283 · tm2223711-4_4seq1.xml · nonDerivative · entry 1

Leveton Jay · CIK 0001876913 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 278,655

F1 · shares: Represents 144,861 restricted shares of Class A Common Stock of the Issuer awarded to the Reporting Person on August 15, 2022. The restricted shares will vest on March 31, 2025, subject to the achievement of financial performance targets and the Reporting Person's continued service through such date.

SEC source: 0001104659-22-092282 · tm2223711-3_4seq1.xml · nonDerivative · entry 1

Lanuto Frank P · CIK 0001443237 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 457,855

F1 · shares: Represents 149,857 restricted shares of Class A Common Stock of the Issuer awarded to the Reporting Person on August 15, 2022. The restricted shares will vest on March 31, 2025, subject to the achievement of financial performance targets and the Reporting Person's continued service through such date.

SEC source: 0001104659-22-092281 · tm2223711-2_4seq1.xml · nonDerivative · entry 1

Greene Ryan · CIK 0001876911 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 102,744

F1 · shares: Represents 55,148 restricted shares of Class A Common Stock of the Issuer awarded to the Reporting Person on August 15, 2022. The restricted shares will vest on March 31, 2025, subject to the achievement of financial performance targets and the Reporting Person's continued service through such date.

SEC source: 0001104659-22-092278 · tm2223711-1_4seq1.xml · nonDerivative · entry 1

DIMAGGIO VINCENZO · CIK 0001808306 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 122,102

F1 · shares: Represents 27,694 restricted shares of Class A Common Stock of the Issuer awarded to the Reporting Person on August 15, 2022. The restricted shares will vest on March 31, 2025, subject to the achievement of financial performance targets and the Reporting Person's continued service through such date.

SEC source: 0001104659-22-072031 · tm2218678-6_4seq1.xml · nonDerivative · entry 1

SLATER RODNEY E · CIK 0001231982 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,008

F1 · shares: The reporting person was awarded shares of restricted stock (Class A Common Stock) as a component of non-employee director compensation. The shares of restricted stock will vest in full on the first anniversary of the date of grant.

SEC source: 0001104659-22-072032 · tm2218678-7_4seq1.xml · nonDerivative · entry 1

Vaughan Brandt A. · CIK 0001877331 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,508

F1 · shares: The reporting person was awarded shares of restricted stock (Class A Common Stock) as a component of non-employee director compensation. The shares of restricted stock will vest in full on the first anniversary of the date of grant.

SEC source: 0001104659-22-072030 · tm2218678-5_4seq1.xml · nonDerivative · entry 1

SIMON IRWIN D · CIK 0000922748 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 134,219

F1 · shares: The reporting person was awarded shares of restricted stock (Class A Common Stock) as a component of non-employee director compensation. The shares of restricted stock will vest in full on the first anniversary of the date of grant.

SEC source: 0001104659-22-072029 · tm2218678-4_4seq1.xml · nonDerivative · entry 1

Samaha Eli · CIK 0001877589 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,008

F1 · shares: The reporting person was awarded shares of restricted stock (Class A Common Stock) as a component of non-employee director compensation. The shares of restricted stock will vest in full on the first anniversary of the date of grant.

SEC source: 0001104659-22-072028 · tm2218678-3_4seq1.xml · nonDerivative · entry 1

ROGERS DESIREE G · CIK 0001182862 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 118,226

F1 · shares: The reporting person was awarded shares of restricted stock (Class A Common Stock) as a component of non-employee director compensation. The shares of restricted stock will vest in full on the first anniversary of the date of grant.

SEC source: 0001104659-22-072027 · tm2218678-2_4seq1.xml · nonDerivative · entry 1

Oosterman Wade · CIK 0001587270 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 104,264

F1 · shares: The reporting person was awarded restricted stock units as a component of non-employee director compensation. Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. The restricted stock units will vest in full on the first anniversary of the date of grant.

SEC source: 0001104659-22-072026 · tm2218678-1_4seq1.xml · nonDerivative · entry 1

BARSHEFSKY CHARLENE · CIK 0001145766 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 119,264

F1 · shares: The reporting person was awarded shares of restricted stock (Class A Common Stock) as a component of non-employee director compensation. The shares of restricted stock will vest in full on the first anniversary of the date of grant.

SEC source: 0001104659-22-092285 · tm2223711-6_4seq1.xml · derivative · entry 4

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 164,426,788

Underlying: Class A Common Stock · 388,122 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.

F5 · derivative.exercise_price: The Reporting Person is the controlling person of Stagwell Media LP ("Stagwell Media"). Stagwell Media directly holds 160,909,058 shares of Class C Common Stock of the Issuer. Stagwell Media is the manager of Stagwell Friends and Family LLC ("Stagwell Friends and Family"), which directly holds 3,517,730 shares of Class C Common Stock of the Issuer. The shares of Class C Common Stock are voting-only shares that have no economic interest in the Issuer and are not registered or listed shares. The holder of Class C Common Stock may, at its option, exchange its Class C Common Stock, together with its corresponding economic interest in a wholly-owned subsidiary of the Issuer (collectively, a "Paired Equity Interest"), for shares of Class A Common Stock on a one-for-one basis (i.e., one Paired Equity Interest for one share of Class A Common Stock).

F6 · derivative.exercise_price: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F5 · derivative.exercise_date: The Reporting Person is the controlling person of Stagwell Media LP ("Stagwell Media"). Stagwell Media directly holds 160,909,058 shares of Class C Common Stock of the Issuer. Stagwell Media is the manager of Stagwell Friends and Family LLC ("Stagwell Friends and Family"), which directly holds 3,517,730 shares of Class C Common Stock of the Issuer. The shares of Class C Common Stock are voting-only shares that have no economic interest in the Issuer and are not registered or listed shares. The holder of Class C Common Stock may, at its option, exchange its Class C Common Stock, together with its corresponding economic interest in a wholly-owned subsidiary of the Issuer (collectively, a "Paired Equity Interest"), for shares of Class A Common Stock on a one-for-one basis (i.e., one Paired Equity Interest for one share of Class A Common Stock).

F6 · derivative.exercise_date: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F7 · derivative.expiration_date: The right of any holder of the Class C Common Stock to exchange such shares for Class A Common Stock is not subject to an expiration date.

F5 · ownership.nature: The Reporting Person is the controlling person of Stagwell Media LP ("Stagwell Media"). Stagwell Media directly holds 160,909,058 shares of Class C Common Stock of the Issuer. Stagwell Media is the manager of Stagwell Friends and Family LLC ("Stagwell Friends and Family"), which directly holds 3,517,730 shares of Class C Common Stock of the Issuer. The shares of Class C Common Stock are voting-only shares that have no economic interest in the Issuer and are not registered or listed shares. The holder of Class C Common Stock may, at its option, exchange its Class C Common Stock, together with its corresponding economic interest in a wholly-owned subsidiary of the Issuer (collectively, a "Paired Equity Interest"), for shares of Class A Common Stock on a one-for-one basis (i.e., one Paired Equity Interest for one share of Class A Common Stock).

F6 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001104659-22-092285 · tm2223711-6_4seq1.xml · nonDerivative · entry 2

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 26,502,414

F1 · kind: On June 9, 2022, Stagwell Media and Stagwell Friends and Family (each as defined and discussed in footnote 4 hereto) exchanged 388,122 Paired Equity Interests (as defined and discussed in footnote 4 hereto) for an equal number of shares of Class A Common Stock of the Issuer and distributed such shares to certain of their limited partners and members for no consideration.

F2 · ownership.nature: The Reporting Person is the controlling person of The Stagwell Group LLC ("Stagwell Group"). Stagwell Group directly holds 130,000 shares of Class A Common Stock of the Issuer. Stagwell Group is the manager of Stagwell Agency Holdings LLC, which directly holds 26,372,414 shares of Class A Common Stock of the Issuer. Amounts reported also reflect an aggregate of 388,122 shares of Class A Common Stock of the Issuer acquired upon the exchange of an equal number of Paired Equity Interests by Stagwell Media and Stagwell Friends and Family and distributed to limited partners and members of Stagwell Media and Stagwell Friends and Family for no consideration.

F3 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001104659-22-092285 · tm2223711-6_4seq1.xml · nonDerivative · entry 1

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 26,890,536

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: On June 9, 2022, Stagwell Media and Stagwell Friends and Family (each as defined and discussed in footnote 4 hereto) exchanged 388,122 Paired Equity Interests (as defined and discussed in footnote 4 hereto) for an equal number of shares of Class A Common Stock of the Issuer and distributed such shares to certain of their limited partners and members for no consideration.

F2 · ownership.nature: The Reporting Person is the controlling person of The Stagwell Group LLC ("Stagwell Group"). Stagwell Group directly holds 130,000 shares of Class A Common Stock of the Issuer. Stagwell Group is the manager of Stagwell Agency Holdings LLC, which directly holds 26,372,414 shares of Class A Common Stock of the Issuer. Amounts reported also reflect an aggregate of 388,122 shares of Class A Common Stock of the Issuer acquired upon the exchange of an equal number of Paired Equity Interests by Stagwell Media and Stagwell Friends and Family and distributed to limited partners and members of Stagwell Media and Stagwell Friends and Family for no consideration.

F3 · ownership.nature: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001104659-22-059617 · tm2215459-1_4seq1.xml · nonDerivative · entry 3

Samaha Eli · CIK 0001877589 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 6,397,662

F3 · price: The purchase price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $6.78 to $6.90, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

F4 · ownership.nature: These shares are held by funds managed by Madison Avenue Partners, LP. The Reporting Person is the managing partner of Madison Avenue Partners, LP. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein. The filing of this statement shall not be deemed an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise, the Reporting Person is the beneficial ownership of such securities.

SEC source: 0001104659-22-059617 · tm2215459-1_4seq1.xml · nonDerivative · entry 2

Samaha Eli · CIK 0001877589 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 6,347,662

F2 · price: The purchase price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $6.855 to $7.05, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

F4 · ownership.nature: These shares are held by funds managed by Madison Avenue Partners, LP. The Reporting Person is the managing partner of Madison Avenue Partners, LP. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein. The filing of this statement shall not be deemed an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise, the Reporting Person is the beneficial ownership of such securities.

SEC source: 0001104659-22-059617 · tm2215459-1_4seq1.xml · nonDerivative · entry 1

Samaha Eli · CIK 0001877589 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 5,790,816

F1 · price: The purchase price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $6.61 to $6.80, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote.

F4 · ownership.nature: These shares are held by funds managed by Madison Avenue Partners, LP. The Reporting Person is the managing partner of Madison Avenue Partners, LP. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein. The filing of this statement shall not be deemed an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise, the Reporting Person is the beneficial ownership of such securities.

SEC source: 0001104659-22-029503 · tm228179d5_4.xml · nonDerivative · entry 1

DIMAGGIO VINCENZO · CIK 0001808306 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 94,408

F1 · shares: Represents 8,272 restricted shares of Class A Common Stock of the Issuer awarded to the Reporting Person on February 28, 2022. The restricted shares will vest on February 28, 2023, subject to the Reporting Person's continued service through such date.

SEC source: 0001104659-22-029502 · tm228179d4_4.xml · nonDerivative · entry 1

Greene Ryan · CIK 0001876911 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,596

F1 · shares: Represents 6,596 restricted shares of Class A Common Stock of the Issuer awarded to the Reporting Person on February 28, 2022. The restricted shares will vest on February 28, 2023, subject to the Reporting Person's continued service through such date.

SEC source: 0001104659-22-029501 · tm228179d3_4.xml · nonDerivative · entry 1

Lanuto Frank P · CIK 0001443237 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 307,998

F1 · shares: Represents 21,875 restricted shares of Class A Common Stock of the Issuer awarded to the Reporting Person on February 28, 2022. The restricted shares will vest on February 28, 2023, subject to the Reporting Person's continued service through such date.

SEC source: 0001104659-22-029500 · tm228179d2_4.xml · nonDerivative · entry 1

Leveton Jay · CIK 0001876913 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,794

F1 · shares: Represents 47,794 restricted shares of Class A Common Stock of the Issuer awarded to the Reporting Person on February 28, 2022. The restricted shares will vest on February 28, 2023, subject to the Reporting Person's continued service through such date.

SEC source: 0001104659-22-029499 · tm228179d1_4.xml · nonDerivative · entry 1

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,162,816

F1 · shares: Represents 161,765 restricted shares of Class A Common Stock of the Issuer awarded to the Reporting Person on February 28, 2022. The restricted shares will vest in full on February 28, 2023, subject to the Reporting Person's continued service through such date.

SEC source: 0001104659-22-012160 · tm225617-1_4seq1.xml · derivative · entry 4

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 164,814,910

Underlying: Class A Common Stock · 15,155,141 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 Reporting Person is the controlling person of Stagwell Media LP ("Stagwell Media"). Stagwell Media directly holds 160,909,058 shares of Class C common stock if the Issuer. Stagwell Media is the manager of Stagwell Friends and Family LLC, which directly holds 3,905,852 shares of Class C Common Stock of the Issuer. The Class C Common Stock are voting-only shares that have no economic interest in the Issuer and are not registered or listed shares. The holder of Class C Common Stock may, at its option, exchange its Class C Common Stock, together with its corresponding economic interest in a wholly-owned subsidiary of the Issuer (collectively, a "Paired Equity Interest"), for Class A Common Stock on a one-for-one basis (i.e., one Paired Equity Interest for one share of Class A Common Stock).

F3 · derivative.exercise_date: The Reporting Person is the controlling person of Stagwell Media LP ("Stagwell Media"). Stagwell Media directly holds 160,909,058 shares of Class C common stock if the Issuer. Stagwell Media is the manager of Stagwell Friends and Family LLC, which directly holds 3,905,852 shares of Class C Common Stock of the Issuer. The Class C Common Stock are voting-only shares that have no economic interest in the Issuer and are not registered or listed shares. The holder of Class C Common Stock may, at its option, exchange its Class C Common Stock, together with its corresponding economic interest in a wholly-owned subsidiary of the Issuer (collectively, a "Paired Equity Interest"), for Class A Common Stock on a one-for-one basis (i.e., one Paired Equity Interest for one share of Class A Common Stock).

F4 · derivative.expiration_date: The right of any holder of Class C Common Stock to exchange such shares for Class A Common Stock is not subject to an expiration date.

F3 · ownership.nature: The Reporting Person is the controlling person of Stagwell Media LP ("Stagwell Media"). Stagwell Media directly holds 160,909,058 shares of Class C common stock if the Issuer. Stagwell Media is the manager of Stagwell Friends and Family LLC, which directly holds 3,905,852 shares of Class C Common Stock of the Issuer. The Class C Common Stock are voting-only shares that have no economic interest in the Issuer and are not registered or listed shares. The holder of Class C Common Stock may, at its option, exchange its Class C Common Stock, together with its corresponding economic interest in a wholly-owned subsidiary of the Issuer (collectively, a "Paired Equity Interest"), for Class A Common Stock on a one-for-one basis (i.e., one Paired Equity Interest for one share of Class A Common Stock).

SEC source: 0001104659-22-012160 · tm225617-1_4seq1.xml · nonDerivative · entry 2

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 26,502,414

F2 · kind: Pro rata distributions from Stagwell Media and Stagwell Friends and Family.

F1 · ownership.nature: The Reporting Person is the controlling person of The Stagwell Group LLC ("Stagwell"). Stagwell directly holds 130,000 shares of Class A Common Sock of the Issuer. Stagwell is the manager of Stagwell Agency Holdings LLC, which directly holds 26,372,414 shares of Class A Common Stock of the Issuer. The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001104659-22-012160 · tm225617-1_4seq1.xml · nonDerivative · entry 1

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 41,657,555

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: The Reporting Person is the controlling person of The Stagwell Group LLC ("Stagwell"). Stagwell directly holds 130,000 shares of Class A Common Sock of the Issuer. Stagwell is the manager of Stagwell Agency Holdings LLC, which directly holds 26,372,414 shares of Class A Common Stock of the Issuer. The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F1 · ownership.nature: The Reporting Person is the controlling person of The Stagwell Group LLC ("Stagwell"). Stagwell directly holds 130,000 shares of Class A Common Sock of the Issuer. Stagwell is the manager of Stagwell Agency Holdings LLC, which directly holds 26,372,414 shares of Class A Common Stock of the Issuer. The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

SEC source: 0001104659-21-150087 · tm2135558-1_4seq1.xml · derivative · entry 1

Penn Mark Jeffery · CIK 0001771735 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,500,000

Underlying: Class A Common Stock · 1,500,000 shares

Expires 2026-12-14

F1 · security: Stock Appreciation Rights (SARS) granted December 14, 2021 to the reporting person vest and are exercisable in three equal installments (each consisting of 500,000 underlying shares of Class A Common Stock) on each of the first three (3) anniversaries of the grant date, and expire on the fifth anniversary of the grant date. The grant of 1,312,000 of the SARS is subject to approval by the Issuer's stockholders of amendments to its Amended and Restated 2016 Stock Incentive Plan.

F1 · derivative.exercise_date: Stock Appreciation Rights (SARS) granted December 14, 2021 to the reporting person vest and are exercisable in three equal installments (each consisting of 500,000 underlying shares of Class A Common Stock) on each of the first three (3) anniversaries of the grant date, and expire on the fifth anniversary of the grant date. The grant of 1,312,000 of the SARS is subject to approval by the Issuer's stockholders of amendments to its Amended and Restated 2016 Stock Incentive Plan.