STGW

SEC source: 0001104659-23-093928 · tm2324290d1_4seq1.xml · nonDerivative · entry 1

McElligott Peter · CIK 0001917834 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 120,489

SEC source: 0001104659-23-082818 · tm2321788-1_4seq1.xml · derivative · entry 5

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,000,000

Underlying: Class A Common Stock · 500,000 shares

Expires 2024-03-18

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 · shares: Represents the exercise of Stock Appreciation Rights (SARs) and settlement in shares of Class A Common Stock.

F4 · derivative.exercise_date: The SARs vested in equal installments on March 18, 2020, March 18, 2021 and March 18, 2022.

SEC source: 0001104659-23-082818 · tm2321788-1_4seq1.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,540,493

F2 · shares: Represents shares withheld by the issuer to satisfy tax withholding requirements on the reported exercise and settlement of SARs.

SEC source: 0001104659-23-082818 · tm2321788-1_4seq1.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,684,224

F1 · shares: Represents the exercise of Stock Appreciation Rights (SARs) and settlement in shares of Class A Common Stock.

SEC source: 0001104659-23-082818 · tm2321788-1_4seq1.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,817,924

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 · shares: Represents the exercise of Stock Appreciation Rights (SARs) and settlement in shares of Class A Common Stock.

SEC source: 0001104659-23-077277 · tm2320396-1_4seq1.xml · derivative · entry 8

Lanuto Frank P · CIK 0001443237 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 225,000 shares

Expires 2024-06-10

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 · shares: Represents the exercise of Stock Appreciation Rights (SARs) and settlement in shares of Class A Common Stock.

F3 · derivative.exercise_date: The SARs vested in equal installments on 06/10/2020, 06/10/2021 and 06/10/2022.

SEC source: 0001104659-23-077277 · tm2320396-1_4seq1.xml · derivative · entry 7

Lanuto Frank P · CIK 0001443237 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 225,000 shares

Expires 2024-06-10

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 · shares: Represents the exercise of Stock Appreciation Rights (SARs) and settlement in shares of Class A Common Stock.

F3 · derivative.exercise_date: The SARs vested in equal installments on 06/10/2020, 06/10/2021 and 06/10/2022.

SEC source: 0001104659-23-077277 · tm2320396-1_4seq1.xml · nonDerivative · entry 6

Lanuto Frank P · CIK 0001443237 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 705,745

F2 · shares: Represents shares withheld by the issuer to satisfy tax withholding requirements on the reported exercise and settlement of SARs.

SEC source: 0001104659-23-077277 · tm2320396-1_4seq1.xml · nonDerivative · entry 5

Lanuto Frank P · CIK 0001443237 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 744,798

F1 · shares: Represents the exercise of Stock Appreciation Rights (SARs) and settlement in shares of Class A Common Stock.

SEC source: 0001104659-23-077277 · tm2320396-1_4seq1.xml · nonDerivative · entry 4

Lanuto Frank P · CIK 0001443237 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 895,603

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 · shares: Represents the exercise of Stock Appreciation Rights (SARs) and settlement in shares of Class A Common Stock.

SEC source: 0001104659-23-077277 · tm2320396-1_4seq1.xml · nonDerivative · entry 3

Lanuto Frank P · CIK 0001443237 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 670,603

F2 · shares: Represents shares withheld by the issuer to satisfy tax withholding requirements on the reported exercise and settlement of SARs.

SEC source: 0001104659-23-077277 · tm2320396-1_4seq1.xml · nonDerivative · entry 2

Lanuto Frank P · CIK 0001443237 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 742,835

F1 · shares: Represents the exercise of Stock Appreciation Rights (SARs) and settlement in shares of Class A Common Stock.

SEC source: 0001104659-23-077277 · tm2320396-1_4seq1.xml · nonDerivative · entry 1

Lanuto Frank P · CIK 0001443237 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 830,604

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 · shares: Represents the exercise of Stock Appreciation Rights (SARs) and settlement in shares of Class A Common Stock.

SEC source: 0001104659-23-072391 · tm2318971-7_4seq1.xml · nonDerivative · entry 2

SIMON IRWIN D · CIK 0000922748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 145,630

F2 · shares: Represents shares withheld by the issuer to satisfy tax withholding requirements on the nonreportable vesting of restricted stock.

SEC source: 0001104659-23-072391 · tm2318971-7_4seq1.xml · nonDerivative · entry 1

SIMON IRWIN D · CIK 0000922748 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 153,159

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: 0001104659-23-072390 · tm2318971-6_4seq1.xml · nonDerivative · entry 2

ROGERS DESIREE G · CIK 0001182862 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,055

F2 · shares: Represents shares withheld by the issuer to satisfy tax withholding requirements on the nonreportable vesting of restricted stock.

SEC source: 0001104659-23-072390 · tm2318971-6_4seq1.xml · nonDerivative · entry 1

ROGERS DESIREE G · CIK 0001182862 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 137,166

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: 0001104659-23-072389 · tm2318971-5_4seq1.xml · nonDerivative · entry 1

Vaughan Brandt A. · CIK 0001877331 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,448

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: 0001104659-23-072388 · tm2318971-4_4seq1.xml · nonDerivative · entry 1

SLATER RODNEY E · CIK 0001231982 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,948

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: 0001104659-23-072387 · tm2318971-3_4seq1.xml · nonDerivative · entry 1

Samaha Eli · CIK 0001877589 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,948

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: 0001104659-23-072386 · tm2318971-2_4seq1.xml · nonDerivative · entry 1

Oosterman Wade · CIK 0001587270 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 123,204

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: 0001104659-23-072385 · tm2318971-1_4seq1.xml · nonDerivative · entry 1

BARSHEFSKY CHARLENE · CIK 0001145766 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 138,204

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: 0001104659-24-013467 · tm245550-1_5seq1.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 130,000

F5 · kind: On May 15, 2023, Agency Holdings distributed 14,067,837 shares of Class A Common Stock of the Issuer to certain limited partners of Stagwell Media for no consideration. Following such distribution, Agency Holdings directly held zero shares of Class A Common Stock of the Issuer.

F2 · ownership.nature: The Reporting Person is the controlling person of The Stagwell Group LLC ("Stagwell Group"). Stagwell Group is the general partner and manager of Stagwell Media and is the manager of Stagwell Agency Holdings LLC ("Agency Holdings"), which is a subsidiary of Stagwell Media. As of December 31, 2023, Stagwell Group directly held 130,000 shares of Class A Common Stock of the Issuer, and each of Stagwell Media and Agency Holdings directly held zero shares of Class A Common Stock of the Issuer.

F3 · ownership.nature: Amounts reported in rows 1 and 2 of column 5 also reflect (i) the aggregate of 9,260,317 shares of Class A Common Stock of the Issuer acquired by Stagwell Media upon the exchange of an equal number of Paired Equity Interests and distributed on May 10, 2023 to certain limited partners of Stagwell Media for no consideration, as discussed in footnote 1 hereto, and (ii) the aggregate of 14,067,837 shares of Class A Common Stock of the Issuer distributed on May 15, 2023 to certain limited partners of Stagwell Media by Agency Holdings for no consideration, as discussed in footnote 5 hereto.

F4 · 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: 0001104659-23-060843 · tm2315800-1_4seq1.xml · nonDerivative · entry 1

McElligott Peter · CIK 0001917834 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,989

F1 · shares: The purchase price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.675 to $5.6752, 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 range set forth in this footnote.

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 $5.675 to $5.6752, 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 range set forth in this footnote.

SEC source: 0001104659-23-058492 · tm2315340-1_4seq1.xml · nonDerivative · entry 1

DIMAGGIO VINCENZO · CIK 0001808306 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 181,383

SEC source: 0001104659-24-013467 · tm245550-1_5seq1.xml · derivative · entry 5

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 151,648,741

Underlying: Class A Common Stock · 9,260,317 shares

Expires not disclosed

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

F1 · derivative.exercise_price: On May 10, 2023, Stagwell Media LP ("Stagwell Media") exchanged 9,260,317 Paired Equity Interests (as defined and discussed in footnote 6 hereto) for an equal number of shares of Class A Common Stock of the Issuer and distributed such shares to certain of its limited partners for no consideration. Following such distribution, Stagwell Media directly held zero shares of Class A Common Stock of the Issuer.

F6 · derivative.exercise_price: Held by Stagwell Media. 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: Held by Stagwell Media. 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).

F7 · derivative.exercise_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.

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.

F4 · 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.

F6 · ownership.nature: Held by Stagwell Media. 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).

SEC source: 0001104659-24-013467 · tm245550-1_5seq1.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 14,197,837

F1 · kind: On May 10, 2023, Stagwell Media LP ("Stagwell Media") exchanged 9,260,317 Paired Equity Interests (as defined and discussed in footnote 6 hereto) for an equal number of shares of Class A Common Stock of the Issuer and distributed such shares to certain of its limited partners for no consideration. Following such distribution, Stagwell Media directly held zero shares of Class A Common Stock of the Issuer.

F2 · ownership.nature: The Reporting Person is the controlling person of The Stagwell Group LLC ("Stagwell Group"). Stagwell Group is the general partner and manager of Stagwell Media and is the manager of Stagwell Agency Holdings LLC ("Agency Holdings"), which is a subsidiary of Stagwell Media. As of December 31, 2023, Stagwell Group directly held 130,000 shares of Class A Common Stock of the Issuer, and each of Stagwell Media and Agency Holdings directly held zero shares of Class A Common Stock of the Issuer.

F3 · ownership.nature: Amounts reported in rows 1 and 2 of column 5 also reflect (i) the aggregate of 9,260,317 shares of Class A Common Stock of the Issuer acquired by Stagwell Media upon the exchange of an equal number of Paired Equity Interests and distributed on May 10, 2023 to certain limited partners of Stagwell Media for no consideration, as discussed in footnote 1 hereto, and (ii) the aggregate of 14,067,837 shares of Class A Common Stock of the Issuer distributed on May 15, 2023 to certain limited partners of Stagwell Media by Agency Holdings for no consideration, as discussed in footnote 5 hereto.

F4 · 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: 0001104659-24-013467 · tm245550-1_5seq1.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 23,458,154

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 May 10, 2023, Stagwell Media LP ("Stagwell Media") exchanged 9,260,317 Paired Equity Interests (as defined and discussed in footnote 6 hereto) for an equal number of shares of Class A Common Stock of the Issuer and distributed such shares to certain of its limited partners for no consideration. Following such distribution, Stagwell Media directly held zero shares of Class A Common Stock of the Issuer.

F2 · ownership.nature: The Reporting Person is the controlling person of The Stagwell Group LLC ("Stagwell Group"). Stagwell Group is the general partner and manager of Stagwell Media and is the manager of Stagwell Agency Holdings LLC ("Agency Holdings"), which is a subsidiary of Stagwell Media. As of December 31, 2023, Stagwell Group directly held 130,000 shares of Class A Common Stock of the Issuer, and each of Stagwell Media and Agency Holdings directly held zero shares of Class A Common Stock of the Issuer.

F3 · ownership.nature: Amounts reported in rows 1 and 2 of column 5 also reflect (i) the aggregate of 9,260,317 shares of Class A Common Stock of the Issuer acquired by Stagwell Media upon the exchange of an equal number of Paired Equity Interests and distributed on May 10, 2023 to certain limited partners of Stagwell Media for no consideration, as discussed in footnote 1 hereto, and (ii) the aggregate of 14,067,837 shares of Class A Common Stock of the Issuer distributed on May 15, 2023 to certain limited partners of Stagwell Media by Agency Holdings for no consideration, as discussed in footnote 5 hereto.

F4 · 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: 0000899243-23-012577 · doc4.xml · nonDerivative · entry 2

AlpInvest GA Secondary C.V. · CIK 0001976479 · Former 10% holder

AG Secondary C.V. · CIK 0001976283 · 10% owner

APSS Secondary C.V. · CIK 0001976321 · 10% owner

AJ Secondary C.V. · CIK 0001976587 · 10% owner

AP Fondo Secondaries II C.V. · CIK 0001976316 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F1 · kind: Each of AlpInvest Partners US Secondary Investments 2016 I C.V., AlpInvest PEP Secondary 2017 C.V., AlpInvest Secondaries Fund VI C.V., AlpInvest Secondaries Fund (Euro) VI C.V., GGG US Secondary 2017 C.V., AlpInvest GA Secondary C.V., AG Secondary C.V., APSS Secondary C.V., AJ Secondary C.V. and AP Fondo Secondaries II C.V. (collectively, the "AlpInvest Funds" and, together with AlpInvest Partners B.V., the "Reporting Persons") are limited partners of Stagwell Media LP (the "Limited Partnership"). As of April 30, 2023, the Reporting Persons have the right to cause Stagwell Media LP to make a distribution-in-kind of shares of Class A Common Stock of Stagwell Inc (the "Issuer"). Such right does not expire. The number of shares that would be delivered upon exercise of such right is determined by, among other things, the trading price of shares of Class A Common Stock of Stagwell Inc.

F2 · kind: On May 8, 2023, the AlpInvest Funds directed the Limited Partnership to make a partial distribution in kind of 23,328,154 shares of Class A Common Stock (the "Distributed Shares") held by the Limited Partnership. On May 9, 2023, the AlpInvest Funds entered into a Share Repurchase Agreement with the Issuer (the "Share Repurchase Agreement"). Pursuant to the Share Repurchase Agreement, the Issuer agreed to repurchase the Distributed Shares from the AlpInvest Funds at a price of $6.43 per share, for total proceeds of $150,000,030.22. The AlpInvest Funds and the Limited Partnership have agreed that, for purposes of the Limited Partnership Agreement of the Limited Partnership (the "LPA") and determining the amount of distributions that the AlpInvest Funds continue to have the right to receive under the LPA, the Distributed Shares are valued at that same price.

F2 · shares: On May 8, 2023, the AlpInvest Funds directed the Limited Partnership to make a partial distribution in kind of 23,328,154 shares of Class A Common Stock (the "Distributed Shares") held by the Limited Partnership. On May 9, 2023, the AlpInvest Funds entered into a Share Repurchase Agreement with the Issuer (the "Share Repurchase Agreement"). Pursuant to the Share Repurchase Agreement, the Issuer agreed to repurchase the Distributed Shares from the AlpInvest Funds at a price of $6.43 per share, for total proceeds of $150,000,030.22. The AlpInvest Funds and the Limited Partnership have agreed that, for purposes of the Limited Partnership Agreement of the Limited Partnership (the "LPA") and determining the amount of distributions that the AlpInvest Funds continue to have the right to receive under the LPA, the Distributed Shares are valued at that same price.

F1 · balance_after: Each of AlpInvest Partners US Secondary Investments 2016 I C.V., AlpInvest PEP Secondary 2017 C.V., AlpInvest Secondaries Fund VI C.V., AlpInvest Secondaries Fund (Euro) VI C.V., GGG US Secondary 2017 C.V., AlpInvest GA Secondary C.V., AG Secondary C.V., APSS Secondary C.V., AJ Secondary C.V. and AP Fondo Secondaries II C.V. (collectively, the "AlpInvest Funds" and, together with AlpInvest Partners B.V., the "Reporting Persons") are limited partners of Stagwell Media LP (the "Limited Partnership"). As of April 30, 2023, the Reporting Persons have the right to cause Stagwell Media LP to make a distribution-in-kind of shares of Class A Common Stock of Stagwell Inc (the "Issuer"). Such right does not expire. The number of shares that would be delivered upon exercise of such right is determined by, among other things, the trading price of shares of Class A Common Stock of Stagwell Inc.

F3 · ownership.nature: Consists of 7,897,045 shares distributed to and sold to the Issuer by AlpInvest Partners US Secondary Investments 2016 I C.V, 2,824,653 shares distributed to and sold to the Issuer by AlpInvest PEP Secondary 2017 C.V., 9,305,931shares distributed to and sold to the Issuer by AlpInvest Secondaries Fund VI C.V., 1,229,268 shares distributed to and sold to the Issuer by AlpInvest Secondaries Fund (Euro) VI C.V., 470,406 shares distributed to and sold to the Issuer by GGG US Secondary 2017 C.V., 118,628 shares distributed to and sold to the Issuer by AlpInvest GA Secondary C.V., 838,743 shares distributed to and sold to the Issuer by AG Secondary C.V., 215,233 shares distributed to and sold to the Issuer by APSS Secondary C.V., 126,477 shares distributed to and sold to the Issuer by AJ Secondary C.V., and 301,770 shares distributed to and sold to the Issuer by AP Fondo Secondaries II C.V.

F4 · ownership.nature: AlpInvest Partners Secondary Investments 2016 I B.V. is the general partner of AlpInvest Partners US Secondary Investments 2016 I C.V. AlpInvest PEP GP B.V. is the general partner of AlpInvest PEP Secondary 2017 C.V. AlpInvest SF VI B.V. is the general partner of each of AlpInvest Secondaries Fund VI C.V. and AlpInvest Secondaries Fund (Euro) VI C.V. AlpInvest GGG B.V. is the general partner of GGG US Secondary 2017 C.V. AlpInvest GA B.V. is the general partner of AlpInvest GA Secondary C.V. AlpInvest G GP, B.V. is the general partner of AG Secondary C.V. AlpInvest PSS GP B.V. is the general partner of APSS Secondary C.V. AlpInvest J GP B.V. is the general partner of AJ Secondary C.V.

F5 · ownership.nature: (cont'd) AlpInvest Fondo B.V. is the general partner of AP Fondo Secondaries II C.V. AlpInvest Partners B.V. is the managing director of each of AlpInvest Partners Secondary Investments 2016 I B.V., AlpInvest PEP GP B.V., AlpInvest SF VI B.V., AlpInvest GGG B.V., AlpInvest GA B.V., AlpInvest G GP, B.V., AlpInvest PSS GP B.V., AlpInvest J GP B.V., AlpInvest Fondo B.V. (collectively, the "General Partners"). Due to this relationship, AlpInvest Partners B.V. may be deemed to exercise voting and dispositive power with respect to securities held by the AlpInvest Funds. Each of the Reporting Persons and General Partners disclaims beneficial ownership of securities owned by the AlpInvest Funds except to the extent of its pecuniary interest therein.

SEC source: 0000899243-23-012564 · doc4.xml · nonDerivative · entry 2

AlpInvest Partners B.V. · CIK 0001512910 · Former 10% holder

AlpInvest Partners US Secondary Investments 2016 I C.V. · CIK 0001976220 · 10% owner

AlpInvest PEP Secondary 2017 C.V. · CIK 0001976232 · 10% owner

AlpInvest Secondaries Fund VI C.V. · CIK 0001976263 · 10% owner

AlpInvest Secondaries Fund (Euro) VI C.V. · CIK 0001976275 · 10% owner

GGG US Secondary 2017 C.V. · CIK 0001976394 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F1 · kind: Each of AlpInvest Partners US Secondary Investments 2016 I C.V., AlpInvest PEP Secondary 2017 C.V., AlpInvest Secondaries Fund VI C.V., AlpInvest Secondaries Fund (Euro) VI C.V., GGG US Secondary 2017 C.V., AlpInvest GA Secondary C.V., AG Secondary C.V., APSS Secondary C.V., AJ Secondary C.V., and AP Fondo Secondaries II C.V. (collectively, the "AlpInvest Funds" and, together with AlpInvest Partners B.V., the "Reporting Persons") are limited partners of Stagwell Media LP (the "Limited Partnership"). As of April 30, 2023, the Reporting Persons have the right to cause Stagwell Media LP to make a distribution-in-kind of shares of Class A Common Stock of Stagwell Inc (the "Issuer"). Such right does not expire. The number of shares that would be delivered upon exercise of such right is determined by, among other things, the trading price of shares of Class A Common Stock of Stagwell Inc.

F2 · kind: On May 8, 2023, the AlpInvest Funds directed the Limited Partnership to make a partial distribution in kind of 23,328,154 shares of Class A Common Stock (the "Distributed Shares") held by the Limited Partnership. On May 9, 2023, the AlpInvest Funds entered into a Share Repurchase Agreement with the Issuer (the "Share Repurchase Agreement"). Pursuant to the Share Repurchase Agreement, the Issuer agreed to repurchase the Distributed Shares from the AlpInvest Funds at a price of $6.43 per share, for total proceeds of $150,000,030.22. The AlpInvest Funds and the Limited Partnership have agreed that, for purposes of the Limited Partnership Agreement of the Limited Partnership (the "LPA") and determining the amount of distributions that the AlpInvest Funds continue to have the right to receive under the LPA, the Distributed Shares are valued at that same price.

F2 · shares: On May 8, 2023, the AlpInvest Funds directed the Limited Partnership to make a partial distribution in kind of 23,328,154 shares of Class A Common Stock (the "Distributed Shares") held by the Limited Partnership. On May 9, 2023, the AlpInvest Funds entered into a Share Repurchase Agreement with the Issuer (the "Share Repurchase Agreement"). Pursuant to the Share Repurchase Agreement, the Issuer agreed to repurchase the Distributed Shares from the AlpInvest Funds at a price of $6.43 per share, for total proceeds of $150,000,030.22. The AlpInvest Funds and the Limited Partnership have agreed that, for purposes of the Limited Partnership Agreement of the Limited Partnership (the "LPA") and determining the amount of distributions that the AlpInvest Funds continue to have the right to receive under the LPA, the Distributed Shares are valued at that same price.

F1 · balance_after: Each of AlpInvest Partners US Secondary Investments 2016 I C.V., AlpInvest PEP Secondary 2017 C.V., AlpInvest Secondaries Fund VI C.V., AlpInvest Secondaries Fund (Euro) VI C.V., GGG US Secondary 2017 C.V., AlpInvest GA Secondary C.V., AG Secondary C.V., APSS Secondary C.V., AJ Secondary C.V., and AP Fondo Secondaries II C.V. (collectively, the "AlpInvest Funds" and, together with AlpInvest Partners B.V., the "Reporting Persons") are limited partners of Stagwell Media LP (the "Limited Partnership"). As of April 30, 2023, the Reporting Persons have the right to cause Stagwell Media LP to make a distribution-in-kind of shares of Class A Common Stock of Stagwell Inc (the "Issuer"). Such right does not expire. The number of shares that would be delivered upon exercise of such right is determined by, among other things, the trading price of shares of Class A Common Stock of Stagwell Inc.

F3 · ownership.nature: Consists of 7,897,045 shares distributed to and sold to the Issuer by AlpInvest Partners US Secondary Investments 2016 I C.V, 2,824,653 shares distributed to and sold to the Issuer by AlpInvest PEP Secondary 2017 C.V., 9,305,931shares distributed to and sold to the Issuer by AlpInvest Secondaries Fund VI C.V., 1,229,268 shares distributed to and sold to the Issuer by AlpInvest Secondaries Fund (Euro) VI C.V., 470,406 shares distributed to and sold to the Issuer by GGG US Secondary 2017 C.V., 118,628 shares distributed to and sold to the Issuer by AlpInvest GA Secondary C.V., 838,743 shares distributed to and sold to the Issuer by AG Secondary C.V., 215,233 shares distributed to and sold to the Issuer by APSS Secondary C.V., 126,477 shares distributed to and sold to the Issuer by AJ Secondary C.V., and 301,770 shares distributed to and sold to the Issuer by AP Fondo Secondaries II C.V.

F4 · ownership.nature: AlpInvest Partners Secondary Investments 2016 I B.V. is the general partner of AlpInvest Partners US Secondary Investments 2016 I C.V. AlpInvest PEP GP B.V. is the general partner of AlpInvest PEP Secondary 2017 C.V. AlpInvest SF VI B.V. is the general partner of each of AlpInvest Secondaries Fund VI C.V. and AlpInvest Secondaries Fund (Euro) VI C.V. AlpInvest GGG B.V. is the general partner of GGG US Secondary 2017 C.V. AlpInvest GA B.V. is the general partner of AlpInvest GA Secondary C.V. AlpInvest G GP, B.V. is the general partner of AG Secondary C.V. AlpInvest PSS GP B.V. is the general partner of APSS Secondary C.V. AlpInvest J GP B.V. is the general partner of AJ Secondary C.V.

F5 · ownership.nature: (cont'd) AlpInvest Fondo B.V. is the general partner of AP Fondo Secondaries II C.V. AlpInvest Partners B.V. is the managing director of each of AlpInvest Partners Secondary Investments 2016 I B.V., AlpInvest PEP GP B.V., AlpInvest SF VI B.V., AlpInvest GGG B.V., AlpInvest GA B.V., AlpInvest G GP, B.V., AlpInvest PSS GP B.V., AlpInvest J GP B.V., AlpInvest Fondo B.V. (collectively, the "General Partners"). Due to this relationship, AlpInvest Partners B.V. may be deemed to exercise voting and dispositive power with respect to securities held by the AlpInvest Funds. Each of the Reporting Persons and General Partners disclaims beneficial ownership of securities owned by the AlpInvest Funds except to the extent of its pecuniary interest therein.

SEC source: 0000899243-23-012577 · doc4.xml · nonDerivative · entry 1

AlpInvest GA Secondary C.V. · CIK 0001976479 · Former 10% holder

AG Secondary C.V. · CIK 0001976283 · 10% owner

APSS Secondary C.V. · CIK 0001976321 · 10% owner

AJ Secondary C.V. · CIK 0001976587 · 10% owner

AP Fondo Secondaries II C.V. · CIK 0001976316 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F1 · kind: Each of AlpInvest Partners US Secondary Investments 2016 I C.V., AlpInvest PEP Secondary 2017 C.V., AlpInvest Secondaries Fund VI C.V., AlpInvest Secondaries Fund (Euro) VI C.V., GGG US Secondary 2017 C.V., AlpInvest GA Secondary C.V., AG Secondary C.V., APSS Secondary C.V., AJ Secondary C.V. and AP Fondo Secondaries II C.V. (collectively, the "AlpInvest Funds" and, together with AlpInvest Partners B.V., the "Reporting Persons") are limited partners of Stagwell Media LP (the "Limited Partnership"). As of April 30, 2023, the Reporting Persons have the right to cause Stagwell Media LP to make a distribution-in-kind of shares of Class A Common Stock of Stagwell Inc (the "Issuer"). Such right does not expire. The number of shares that would be delivered upon exercise of such right is determined by, among other things, the trading price of shares of Class A Common Stock of Stagwell Inc.

F2 · kind: On May 8, 2023, the AlpInvest Funds directed the Limited Partnership to make a partial distribution in kind of 23,328,154 shares of Class A Common Stock (the "Distributed Shares") held by the Limited Partnership. On May 9, 2023, the AlpInvest Funds entered into a Share Repurchase Agreement with the Issuer (the "Share Repurchase Agreement"). Pursuant to the Share Repurchase Agreement, the Issuer agreed to repurchase the Distributed Shares from the AlpInvest Funds at a price of $6.43 per share, for total proceeds of $150,000,030.22. The AlpInvest Funds and the Limited Partnership have agreed that, for purposes of the Limited Partnership Agreement of the Limited Partnership (the "LPA") and determining the amount of distributions that the AlpInvest Funds continue to have the right to receive under the LPA, the Distributed Shares are valued at that same price.

F2 · shares: On May 8, 2023, the AlpInvest Funds directed the Limited Partnership to make a partial distribution in kind of 23,328,154 shares of Class A Common Stock (the "Distributed Shares") held by the Limited Partnership. On May 9, 2023, the AlpInvest Funds entered into a Share Repurchase Agreement with the Issuer (the "Share Repurchase Agreement"). Pursuant to the Share Repurchase Agreement, the Issuer agreed to repurchase the Distributed Shares from the AlpInvest Funds at a price of $6.43 per share, for total proceeds of $150,000,030.22. The AlpInvest Funds and the Limited Partnership have agreed that, for purposes of the Limited Partnership Agreement of the Limited Partnership (the "LPA") and determining the amount of distributions that the AlpInvest Funds continue to have the right to receive under the LPA, the Distributed Shares are valued at that same price.

F1 · balance_after: Each of AlpInvest Partners US Secondary Investments 2016 I C.V., AlpInvest PEP Secondary 2017 C.V., AlpInvest Secondaries Fund VI C.V., AlpInvest Secondaries Fund (Euro) VI C.V., GGG US Secondary 2017 C.V., AlpInvest GA Secondary C.V., AG Secondary C.V., APSS Secondary C.V., AJ Secondary C.V. and AP Fondo Secondaries II C.V. (collectively, the "AlpInvest Funds" and, together with AlpInvest Partners B.V., the "Reporting Persons") are limited partners of Stagwell Media LP (the "Limited Partnership"). As of April 30, 2023, the Reporting Persons have the right to cause Stagwell Media LP to make a distribution-in-kind of shares of Class A Common Stock of Stagwell Inc (the "Issuer"). Such right does not expire. The number of shares that would be delivered upon exercise of such right is determined by, among other things, the trading price of shares of Class A Common Stock of Stagwell Inc.

F3 · ownership.nature: Consists of 7,897,045 shares distributed to and sold to the Issuer by AlpInvest Partners US Secondary Investments 2016 I C.V, 2,824,653 shares distributed to and sold to the Issuer by AlpInvest PEP Secondary 2017 C.V., 9,305,931shares distributed to and sold to the Issuer by AlpInvest Secondaries Fund VI C.V., 1,229,268 shares distributed to and sold to the Issuer by AlpInvest Secondaries Fund (Euro) VI C.V., 470,406 shares distributed to and sold to the Issuer by GGG US Secondary 2017 C.V., 118,628 shares distributed to and sold to the Issuer by AlpInvest GA Secondary C.V., 838,743 shares distributed to and sold to the Issuer by AG Secondary C.V., 215,233 shares distributed to and sold to the Issuer by APSS Secondary C.V., 126,477 shares distributed to and sold to the Issuer by AJ Secondary C.V., and 301,770 shares distributed to and sold to the Issuer by AP Fondo Secondaries II C.V.

F4 · ownership.nature: AlpInvest Partners Secondary Investments 2016 I B.V. is the general partner of AlpInvest Partners US Secondary Investments 2016 I C.V. AlpInvest PEP GP B.V. is the general partner of AlpInvest PEP Secondary 2017 C.V. AlpInvest SF VI B.V. is the general partner of each of AlpInvest Secondaries Fund VI C.V. and AlpInvest Secondaries Fund (Euro) VI C.V. AlpInvest GGG B.V. is the general partner of GGG US Secondary 2017 C.V. AlpInvest GA B.V. is the general partner of AlpInvest GA Secondary C.V. AlpInvest G GP, B.V. is the general partner of AG Secondary C.V. AlpInvest PSS GP B.V. is the general partner of APSS Secondary C.V. AlpInvest J GP B.V. is the general partner of AJ Secondary C.V.

F5 · ownership.nature: (cont'd) AlpInvest Fondo B.V. is the general partner of AP Fondo Secondaries II C.V. AlpInvest Partners B.V. is the managing director of each of AlpInvest Partners Secondary Investments 2016 I B.V., AlpInvest PEP GP B.V., AlpInvest SF VI B.V., AlpInvest GGG B.V., AlpInvest GA B.V., AlpInvest G GP, B.V., AlpInvest PSS GP B.V., AlpInvest J GP B.V., AlpInvest Fondo B.V. (collectively, the "General Partners"). Due to this relationship, AlpInvest Partners B.V. may be deemed to exercise voting and dispositive power with respect to securities held by the AlpInvest Funds. Each of the Reporting Persons and General Partners disclaims beneficial ownership of securities owned by the AlpInvest Funds except to the extent of its pecuniary interest therein.

SEC source: 0000899243-23-012564 · doc4.xml · nonDerivative · entry 1

AlpInvest Partners B.V. · CIK 0001512910 · Former 10% holder

AlpInvest Partners US Secondary Investments 2016 I C.V. · CIK 0001976220 · 10% owner

AlpInvest PEP Secondary 2017 C.V. · CIK 0001976232 · 10% owner

AlpInvest Secondaries Fund VI C.V. · CIK 0001976263 · 10% owner

AlpInvest Secondaries Fund (Euro) VI C.V. · CIK 0001976275 · 10% owner

GGG US Secondary 2017 C.V. · CIK 0001976394 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F1 · kind: Each of AlpInvest Partners US Secondary Investments 2016 I C.V., AlpInvest PEP Secondary 2017 C.V., AlpInvest Secondaries Fund VI C.V., AlpInvest Secondaries Fund (Euro) VI C.V., GGG US Secondary 2017 C.V., AlpInvest GA Secondary C.V., AG Secondary C.V., APSS Secondary C.V., AJ Secondary C.V., and AP Fondo Secondaries II C.V. (collectively, the "AlpInvest Funds" and, together with AlpInvest Partners B.V., the "Reporting Persons") are limited partners of Stagwell Media LP (the "Limited Partnership"). As of April 30, 2023, the Reporting Persons have the right to cause Stagwell Media LP to make a distribution-in-kind of shares of Class A Common Stock of Stagwell Inc (the "Issuer"). Such right does not expire. The number of shares that would be delivered upon exercise of such right is determined by, among other things, the trading price of shares of Class A Common Stock of Stagwell Inc.

F2 · kind: On May 8, 2023, the AlpInvest Funds directed the Limited Partnership to make a partial distribution in kind of 23,328,154 shares of Class A Common Stock (the "Distributed Shares") held by the Limited Partnership. On May 9, 2023, the AlpInvest Funds entered into a Share Repurchase Agreement with the Issuer (the "Share Repurchase Agreement"). Pursuant to the Share Repurchase Agreement, the Issuer agreed to repurchase the Distributed Shares from the AlpInvest Funds at a price of $6.43 per share, for total proceeds of $150,000,030.22. The AlpInvest Funds and the Limited Partnership have agreed that, for purposes of the Limited Partnership Agreement of the Limited Partnership (the "LPA") and determining the amount of distributions that the AlpInvest Funds continue to have the right to receive under the LPA, the Distributed Shares are valued at that same price.

F2 · shares: On May 8, 2023, the AlpInvest Funds directed the Limited Partnership to make a partial distribution in kind of 23,328,154 shares of Class A Common Stock (the "Distributed Shares") held by the Limited Partnership. On May 9, 2023, the AlpInvest Funds entered into a Share Repurchase Agreement with the Issuer (the "Share Repurchase Agreement"). Pursuant to the Share Repurchase Agreement, the Issuer agreed to repurchase the Distributed Shares from the AlpInvest Funds at a price of $6.43 per share, for total proceeds of $150,000,030.22. The AlpInvest Funds and the Limited Partnership have agreed that, for purposes of the Limited Partnership Agreement of the Limited Partnership (the "LPA") and determining the amount of distributions that the AlpInvest Funds continue to have the right to receive under the LPA, the Distributed Shares are valued at that same price.

F1 · balance_after: Each of AlpInvest Partners US Secondary Investments 2016 I C.V., AlpInvest PEP Secondary 2017 C.V., AlpInvest Secondaries Fund VI C.V., AlpInvest Secondaries Fund (Euro) VI C.V., GGG US Secondary 2017 C.V., AlpInvest GA Secondary C.V., AG Secondary C.V., APSS Secondary C.V., AJ Secondary C.V., and AP Fondo Secondaries II C.V. (collectively, the "AlpInvest Funds" and, together with AlpInvest Partners B.V., the "Reporting Persons") are limited partners of Stagwell Media LP (the "Limited Partnership"). As of April 30, 2023, the Reporting Persons have the right to cause Stagwell Media LP to make a distribution-in-kind of shares of Class A Common Stock of Stagwell Inc (the "Issuer"). Such right does not expire. The number of shares that would be delivered upon exercise of such right is determined by, among other things, the trading price of shares of Class A Common Stock of Stagwell Inc.

F3 · ownership.nature: Consists of 7,897,045 shares distributed to and sold to the Issuer by AlpInvest Partners US Secondary Investments 2016 I C.V, 2,824,653 shares distributed to and sold to the Issuer by AlpInvest PEP Secondary 2017 C.V., 9,305,931shares distributed to and sold to the Issuer by AlpInvest Secondaries Fund VI C.V., 1,229,268 shares distributed to and sold to the Issuer by AlpInvest Secondaries Fund (Euro) VI C.V., 470,406 shares distributed to and sold to the Issuer by GGG US Secondary 2017 C.V., 118,628 shares distributed to and sold to the Issuer by AlpInvest GA Secondary C.V., 838,743 shares distributed to and sold to the Issuer by AG Secondary C.V., 215,233 shares distributed to and sold to the Issuer by APSS Secondary C.V., 126,477 shares distributed to and sold to the Issuer by AJ Secondary C.V., and 301,770 shares distributed to and sold to the Issuer by AP Fondo Secondaries II C.V.

F4 · ownership.nature: AlpInvest Partners Secondary Investments 2016 I B.V. is the general partner of AlpInvest Partners US Secondary Investments 2016 I C.V. AlpInvest PEP GP B.V. is the general partner of AlpInvest PEP Secondary 2017 C.V. AlpInvest SF VI B.V. is the general partner of each of AlpInvest Secondaries Fund VI C.V. and AlpInvest Secondaries Fund (Euro) VI C.V. AlpInvest GGG B.V. is the general partner of GGG US Secondary 2017 C.V. AlpInvest GA B.V. is the general partner of AlpInvest GA Secondary C.V. AlpInvest G GP, B.V. is the general partner of AG Secondary C.V. AlpInvest PSS GP B.V. is the general partner of APSS Secondary C.V. AlpInvest J GP B.V. is the general partner of AJ Secondary C.V.

F5 · ownership.nature: (cont'd) AlpInvest Fondo B.V. is the general partner of AP Fondo Secondaries II C.V. AlpInvest Partners B.V. is the managing director of each of AlpInvest Partners Secondary Investments 2016 I B.V., AlpInvest PEP GP B.V., AlpInvest SF VI B.V., AlpInvest GGG B.V., AlpInvest GA B.V., AlpInvest G GP, B.V., AlpInvest PSS GP B.V., AlpInvest J GP B.V., AlpInvest Fondo B.V. (collectively, the "General Partners"). Due to this relationship, AlpInvest Partners B.V. may be deemed to exercise voting and dispositive power with respect to securities held by the AlpInvest Funds. Each of the Reporting Persons and General Partners disclaims beneficial ownership of securities owned by the AlpInvest Funds except to the extent of its pecuniary interest therein.

SEC source: 0001104659-23-035617 · tm2310293-1_4seq1.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 14,197,837

F1 · price: The reported securities were sold by Stagwell Agency Holdings LLC pursuant to the exercise in part of the option to purchase additional shares of Class A Common Stock of the Issuer granted to the underwriter in an underwritten public offering (the "Secondary Offering"). This amount represents the $6.75 secondary public offering price per share of Class A Common Stock of the Issuer, less the underwriting discount of $0.320625 per share sold in the Secondary Offering.

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 14,067,837 shares of Class A Common Stock of the Issuer following the reported transaction. 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: 0000895345-23-000211 · form4.xml · nonDerivative · entry 1

Gross Bradley J. · CIK 0001447253 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 16,980,553

F1 · ownership.nature: The Reporting Person is a managing director of Goldman, Sachs & Co. ("Goldman Sachs"). Goldman Sachs is a subsidiary of The Goldman Sachs Group, Inc. ("GS Group"). GS Group is the direct owner of BSPI, which directly holds 14,009,731 shares of Class A Common Stock of the Issuer, and Bridge Street Opportunity Advisors, L.L.C. ("Bridge Street") is the general partner of each of SB Employee Fund, which directly holds 2,094,924 shares of Class A Common Stock of the Issuer, and SB Employee Fund Offshore, which directly holds 742,565 shares of Class A Common Stock of the Issuer. Goldman Sachs beneficially owns directly and GS Group may be deemed to beneficially own indirectly 133,333 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.

SEC source: 0000895345-23-000212 · form4.xml · nonDerivative · entry 1

GOLDMAN SACHS GROUP INC · CIK 0000886982 · 10% owner

GOLDMAN SACHS & CO. LLC · CIK 0000769993 · 10% owner

Broad Street Principal Investments, L.L.C. · CIK 0001575993 · 10% owner

StoneBridge 2017, L.P. · CIK 0001698772 · 10% owner

StoneBridge 2017 Offshore, L.P. · CIK 0001698770 · 10% owner

Bridge Street Opportunity Advisors, L.L.C. · CIK 0001615636 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Foonotes

Disclosed balance after: 16,980,553

F1 · ownership.nature: This statement is being filed by The Goldman Sachs Group, Inc. ("GS Group"), Goldman, Sachs & Co. LLC ("Goldman Sachs"), Broad Street Principal Investments, L.L.C. ("BSPI"), StoneBridge 2017, L.P. ("SB Employee Fund"), StoneBridge 2017 Offshore, L.P. ("SB Employee Fund Offshore," and together with SB Employee Fund, the "Employee Funds") and Bridge Street Opportunity Advisors, L.L.C ("Bridge Street"). Goldman Sachs is a subsidiary of GS Group. Goldman Sachs is the manager of BSPI and Bridge Street and the investment manager of the Employee Funds. GS Group is the direct owner of Bridge Street. Bridge Street is the general partner of each Employee Fund.

F2 · ownership.nature: Because of the relationship by and between GS Group, Goldman Sachs, BSPI and the Employee Funds, GS Group and Goldman Sachs may be deemed (for purposes of Rule 13d-3(a) and Rule 16a-1(a) only and not for any other applicable purpose) to beneficially own an aggregate of 16,980,553 shares of Class A Common Stock, consisting of (i) 14,009,731 shares of Class A Common Stock directly held by BSPI, (ii) 2,094,924 shares of Class A Common Stock directly held by SB Employee Fund, (iii) 742,565 shares of Class A Common Stock directly held by SB Employee Fund Offshore and (iv) 133,333 shares of Class A Common Stock of the Issuer held directly by Goldman Sachs.

SEC source: 0001104659-23-032289 · tm239523-2_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: 14,502,414

F1 · price: The reported securities were sold by Stagwell Agency Holdings LLC in an underwritten public offering (the "Secondary Offering"). This amount represents the $6.75 secondary public offering price per share of Class A Common Stock of the Issuer, less the underwriting discount of $0.320625 per share sold in the Secondary Offering.

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 14,372,414 shares of Class A Common Stock of the Issuer following the reported transaction. 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: 0000895345-23-000202 · form4.xml · nonDerivative · entry 1

Gross Bradley J. · CIK 0001447253 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 17,099,784

F1 · ownership.nature: The Reporting Person is a managing director of Goldman, Sachs & Co. ("Goldman Sachs"). Goldman Sachs is a subsidiary of The Goldman Sachs Group, Inc. ("GS Group"). GS Group is the direct owner of BSPI, which directly holds 14,094,157 shares of Class A Common Stock of the Issuer, and Bridge Street Opportunity Advisors, L.L.C. ("Bridge Street") is the general partner of each of SB Employee Fund, which directly holds 425,953 shares of Class A Common Stock of the Issuer, and SB Employee Fund Offshore, which directly holds 2,428,636 shares of Class A Common Stock of the Issuer. Goldman Sachs beneficially owns directly and GS Group may be deemed to beneficially own indirectly 151,038 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.

SEC source: 0000895345-23-000203 · form4.xml · nonDerivative · entry 1

GOLDMAN SACHS GROUP INC · CIK 0000886982 · 10% owner

GOLDMAN SACHS & CO. LLC · CIK 0000769993 · 10% owner

Broad Street Principal Investments, L.L.C. · CIK 0001575993 · 10% owner

StoneBridge 2017, L.P. · CIK 0001698772 · 10% owner

StoneBridge 2017 Offshore, L.P. · CIK 0001698770 · 10% owner

Bridge Street Opportunity Advisors, L.L.C. · CIK 0001615636 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Foonotes

Disclosed balance after: 17,099,784

F1 · ownership.nature: This statement is being filed by The Goldman Sachs Group, Inc. ("GS Group"), Goldman, Sachs & Co. LLC ("Goldman Sachs"), Broad Street Principal Investments, L.L.C. ("BSPI"), StoneBridge 2017, L.P. ("SB Employee Fund"), StoneBridge 2017 Offshore, L.P. ("SB Employee Fund Offshore," and together with SB Employee Fund, the "Employee Funds") and Bridge Street Opportunity Advisors, L.L.C ("Bridge Street"). Goldman Sachs is a subsidiary of GS Group. Goldman Sachs is the manager of BSPI and Bridge Street and the investment manager of the Employee Funds. GS Group is the direct owner of Bridge Street. Bridge Street is the general partner of each Employee Fund.

F2 · ownership.nature: Because of the relationship by and between GS Group, Goldman Sachs, BSPI and the Employee Funds, GS Group and Goldman Sachs may be deemed (for purposes of Rule 13d-3(a) and Rule 16a-1(a) only and not for any other applicable purpose) to beneficially own an aggregate of 17,099,784 shares of Class A Common Stock, consisting of (i) 14,094,157 shares of Class A Common Stock directly held by BSPI, (ii) 2,428,636 shares of Class A Common Stock directly held by SB Employee Fund Offshore, (iii) 425,953 shares of Class A Common Stock directly held by SB Employee Fund and (iv) Goldman Sachs beneficially owns directly and GS Group may be deemed to beneficially own indirectly 151,038 shares of Class A Common Stock of the Issuer.

SEC source: 0001104659-23-032340 · tm239523-3_4seq1.xml · nonDerivative · entry 2

Samaha Eli · CIK 0001877589 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 7,147,662

F1 · price: The reported securities were purchased by funds managed by Madison Avenue Partners, LP in an underwritten public offering at $6.75 per share.

F2 · 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 owner of such securities.

SEC source: 0001104659-23-028098 · tm238359-3_4seq1.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 225,000

Underlying: Class A Common Stock · 225,000 shares

Expires 2028-03-01

F3 · security: Stock Appreciation Rights (SARS) granted March 1, 2023 to the Reporting Person vest and are exercisable in three equal installments (each consisting of 75,000 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.

F3 · derivative.exercise_date: Stock Appreciation Rights (SARS) granted March 1, 2023 to the Reporting Person vest and are exercisable in three equal installments (each consisting of 75,000 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.

SEC source: 0001104659-23-028102 · tm238359-6_4seq1.xml · nonDerivative · entry 1

Leveton Jay · CIK 0001876913 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 484,285

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

SEC source: 0001104659-23-028101 · tm238359-5_4seq1.xml · nonDerivative · entry 1

Greene Ryan · CIK 0001876911 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 216,370

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

SEC source: 0001104659-23-028100 · tm238359-4_4seq1.xml · nonDerivative · entry 1

McElligott Peter · CIK 0001917834 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,564

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

SEC source: 0001104659-23-028098 · tm238359-3_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: 2,317,924

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

SEC source: 0001104659-23-028097 · tm238359-2_4seq1.xml · nonDerivative · entry 1

Lanuto Frank P · CIK 0001443237 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 605,604

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

SEC source: 0001104659-23-028096 · tm238359-1_4seq1.xml · nonDerivative · entry 1

DIMAGGIO VINCENZO · CIK 0001808306 · SVP, Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 176,383

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

SEC source: 0001104659-23-026197 · tm237946-6_4seq1.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,381,579

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: 0001104659-23-026197 · tm237946-6_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: 1,740,591

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: 0001104659-23-026196 · tm237946-5_4seq1.xml · nonDerivative · entry 2

McElligott Peter · CIK 0001917834 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 118,719

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: 0001104659-23-026196 · tm237946-5_4seq1.xml · nonDerivative · entry 1

McElligott Peter · CIK 0001917834 · General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 98,370

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.