SEG

SEC source: 0001415889-24-029982 · form4-12202024_051206.xml · nonDerivative · entry 1

Digilio Monica S · CIK 0001753207 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,410

F1 · shares: The common stock was granted under the Seaport Entertainment Group Inc. 2024 Equity Incentive Plan, pursuant to the Seaport Entertainment Group Inc. Independent Director Compensation Program.

SEC source: 0001415889-24-029980 · form4-12202024_051202.xml · nonDerivative · entry 1

Hirsh David Z. · CIK 0001848554 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,410

F1 · shares: The common stock was granted under the Seaport Entertainment Group Inc. 2024 Equity Incentive Plan, pursuant to the Seaport Entertainment Group Inc. Independent Director Compensation Program.

SEC source: 0001415889-24-025535 · form4-10222024_111047.xml · derivative · entry 2

Massaro Anthony F · CIK 0002028523 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · Not disclosed shares

Expires not disclosed

F1 · kind: On October 17, 2024, the Issuer announced the completion of its previously announced rights offering relating to its transferable subscription rights. Each subscription right included an over-subscription privilege entitling the holder to subscribe for additional shares in the event such holder exercised all of its subscription rights and any shares of Common Stock were not purchased by other holders of subscription rights. On October 18, 2024, the Issuer provided final share allocations to all shareholders, and, as a result of the rights offering, the reporting person received 19 shares of Common Stock on October 18, 2024.

F1 · derivative.expiration_date: On October 17, 2024, the Issuer announced the completion of its previously announced rights offering relating to its transferable subscription rights. Each subscription right included an over-subscription privilege entitling the holder to subscribe for additional shares in the event such holder exercised all of its subscription rights and any shares of Common Stock were not purchased by other holders of subscription rights. On October 18, 2024, the Issuer provided final share allocations to all shareholders, and, as a result of the rights offering, the reporting person received 19 shares of Common Stock on October 18, 2024.

F1 · derivative.underlying_shares: On October 17, 2024, the Issuer announced the completion of its previously announced rights offering relating to its transferable subscription rights. Each subscription right included an over-subscription privilege entitling the holder to subscribe for additional shares in the event such holder exercised all of its subscription rights and any shares of Common Stock were not purchased by other holders of subscription rights. On October 18, 2024, the Issuer provided final share allocations to all shareholders, and, as a result of the rights offering, the reporting person received 19 shares of Common Stock on October 18, 2024.

SEC source: 0001415889-24-025535 · form4-10222024_111047.xml · nonDerivative · entry 1

Massaro Anthony F · CIK 0002028523 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33

F1 · kind: On October 17, 2024, the Issuer announced the completion of its previously announced rights offering relating to its transferable subscription rights. Each subscription right included an over-subscription privilege entitling the holder to subscribe for additional shares in the event such holder exercised all of its subscription rights and any shares of Common Stock were not purchased by other holders of subscription rights. On October 18, 2024, the Issuer provided final share allocations to all shareholders, and, as a result of the rights offering, the reporting person received 19 shares of Common Stock on October 18, 2024.

F2 · balance_after: On July 31, 2024, Howard Hughes Holdings Inc. ("HHH") completed a pro rata spin-off distribution (the "Distribution") of all of its shares of common stock of the Issuer to the holders of record of HHH common stock as of the close of business on July 29, 2024 (the "Record Date"). Includes 14 shares of the Issuer's common stock received in connection with the Distribution in respect of shares of HHH common stock held as of the Record Date.

SEC source: 0001415889-24-025519 · form4-10222024_081000.xml · nonDerivative · entry 1

Crawford Michael Anthony · CIK 0001816348 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 520

F1 · shares: The common stock was granted under the Seaport Entertainment Group Inc. 2024 Equity Incentive Plan, pursuant to the Seaport Entertainment Group Inc. Independent Director Compensation Program.

SEC source: 0001415889-24-025517 · form4-10222024_081039.xml · nonDerivative · entry 1

Hirsh David Z. · CIK 0001848554 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 520

F1 · shares: The common stock was granted under the Seaport Entertainment Group Inc. 2024 Equity Incentive Plan, pursuant to the Seaport Entertainment Group Inc. Independent Director Compensation Program.

SEC source: 0001415889-24-025515 · form4-10222024_081018.xml · nonDerivative · entry 1

Digilio Monica S · CIK 0001753207 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 520

F1 · shares: The common stock was granted under the Seaport Entertainment Group Inc. 2024 Equity Incentive Plan, pursuant to the Seaport Entertainment Group Inc. Independent Director Compensation Program.

SEC source: 0000950170-24-116422 · ownership.xml · derivative · entry 2

Pershing Square Capital Management, L.P. · CIK 0001336528 · Director · 10% owner

PERSHING SQUARE HOLDCO, L.P. · CIK 0002026053 · Director · 10% owner

Pershing Square Holdco GP, LLC · CIK 0002027508 · Director · 10% owner

PS Holdco GP Managing Member LLC · CIK 0002027456 · Director · 10% owner

ACKMAN WILLIAM A · CIK 0001056513 · Director · 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

Underlying: Common Stock, par value $0.01 per share · Not disclosed shares

Expires not disclosed

F5 · kind: On October 17, 2024, the Issuer announced the completion of its previously announced rights offering relating to its transferable subscription rights. Each subscription right included an over-subscription privilege entitling the holder to subscribe for additional shares in the event such holder exercised all of its subscription rights and any shares of Common Stock were not purchased by other holders of subscription rights. On October 18, 2024, the Issuer provided final share allocations to all shareholders, and, as a result of the rights offering, the Pershing Square Affiliated Funds received an aggregate of 2,929,107 shares of Common Stock on October 18, 2024.

F5 · derivative.expiration_date: On October 17, 2024, the Issuer announced the completion of its previously announced rights offering relating to its transferable subscription rights. Each subscription right included an over-subscription privilege entitling the holder to subscribe for additional shares in the event such holder exercised all of its subscription rights and any shares of Common Stock were not purchased by other holders of subscription rights. On October 18, 2024, the Issuer provided final share allocations to all shareholders, and, as a result of the rights offering, the Pershing Square Affiliated Funds received an aggregate of 2,929,107 shares of Common Stock on October 18, 2024.

F5 · derivative.underlying_shares: On October 17, 2024, the Issuer announced the completion of its previously announced rights offering relating to its transferable subscription rights. Each subscription right included an over-subscription privilege entitling the holder to subscribe for additional shares in the event such holder exercised all of its subscription rights and any shares of Common Stock were not purchased by other holders of subscription rights. On October 18, 2024, the Issuer provided final share allocations to all shareholders, and, as a result of the rights offering, the Pershing Square Affiliated Funds received an aggregate of 2,929,107 shares of Common Stock on October 18, 2024.

F1 · ownership.nature: In addition to Pershing Square Capital Management, L.P., a Delaware limited partnership ("PSCM"), this Form 4 is being filed jointly by Pershing Square Holdco, L.P., a Delaware limited partnership ("PS Holdco"), Pershing Square Holdco GP, LLC, a Delaware limited liability company ("PS Holdco GP"), PS Holdco GP Managing Member, LLC, a Delaware limited liability company ("ManagementCo"), and William A. Ackman, a citizen of the United States of America (collectively, the "Reporting Persons"), each of whom has the same business address as PSCM and may be deemed to beneficially own the securities reported on this Form 4 (the "Subject Securities").

F2 · ownership.nature: PSCM advises the accounts of Pershing Square, L.P., a Delaware limited partnership ("PSLP"), Pershing Square International, Ltd., a Cayman Islands exempted company ("PSI"), and Pershing Square Holdings, Ltd., a limited liability company incorporated in Guernsey ("PSH" and together with PSLP and PSI, the "Pershing Square Affiliated Funds").

F3 · ownership.nature: (A) PSCM, as the investment adviser to the Pershing Square Affiliated Funds, (B) PS Holdco, as the indirect 100% holding company of PSCM, (C) PS Holdco GP, as the sole general partner of PS Holdco and (D) ManagementCo, as the sole member of PS Holdco GP, may each be deemed to be the beneficial owner of the Subject Securities for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934 (the "Exchange Act"). By virtue of Mr. Ackman's position as (i) the Chief Executive Officer of PSCM, (ii) a director of PS Holdco GP and (iii) a member of ManagementCo, Mr. Ackman may be deemed to be the beneficial owner of the Subject Securities for purposes of Rule 16a-1(a) under the Exchange Act. Each of the Reporting Persons disclaims any beneficial ownership of any of the Subject Securities, except to the extent of any pecuniary interest therein.

F4 · ownership.nature: Anthony F. Massaro, a member of the board of directors of the Issuer of the Subject Securities, was appointed to that board as a representative of PSCM, the other Reporting Persons and the Pershing Square Affiliated Funds. As a result, each of those persons are directors by deputization for purposes of Section 16 of the Exchange Act.

SEC source: 0000950170-24-116422 · ownership.xml · nonDerivative · entry 1

Pershing Square Capital Management, L.P. · CIK 0001336528 · Director · 10% owner

PERSHING SQUARE HOLDCO, L.P. · CIK 0002026053 · Director · 10% owner

Pershing Square Holdco GP, LLC · CIK 0002027508 · Director · 10% owner

PS Holdco GP Managing Member LLC · CIK 0002027456 · Director · 10% owner

ACKMAN WILLIAM A · CIK 0001056513 · Director · 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: 5,023,780

F5 · kind: On October 17, 2024, the Issuer announced the completion of its previously announced rights offering relating to its transferable subscription rights. Each subscription right included an over-subscription privilege entitling the holder to subscribe for additional shares in the event such holder exercised all of its subscription rights and any shares of Common Stock were not purchased by other holders of subscription rights. On October 18, 2024, the Issuer provided final share allocations to all shareholders, and, as a result of the rights offering, the Pershing Square Affiliated Funds received an aggregate of 2,929,107 shares of Common Stock on October 18, 2024.

F1 · ownership.nature: In addition to Pershing Square Capital Management, L.P., a Delaware limited partnership ("PSCM"), this Form 4 is being filed jointly by Pershing Square Holdco, L.P., a Delaware limited partnership ("PS Holdco"), Pershing Square Holdco GP, LLC, a Delaware limited liability company ("PS Holdco GP"), PS Holdco GP Managing Member, LLC, a Delaware limited liability company ("ManagementCo"), and William A. Ackman, a citizen of the United States of America (collectively, the "Reporting Persons"), each of whom has the same business address as PSCM and may be deemed to beneficially own the securities reported on this Form 4 (the "Subject Securities").

F2 · ownership.nature: PSCM advises the accounts of Pershing Square, L.P., a Delaware limited partnership ("PSLP"), Pershing Square International, Ltd., a Cayman Islands exempted company ("PSI"), and Pershing Square Holdings, Ltd., a limited liability company incorporated in Guernsey ("PSH" and together with PSLP and PSI, the "Pershing Square Affiliated Funds").

F3 · ownership.nature: (A) PSCM, as the investment adviser to the Pershing Square Affiliated Funds, (B) PS Holdco, as the indirect 100% holding company of PSCM, (C) PS Holdco GP, as the sole general partner of PS Holdco and (D) ManagementCo, as the sole member of PS Holdco GP, may each be deemed to be the beneficial owner of the Subject Securities for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934 (the "Exchange Act"). By virtue of Mr. Ackman's position as (i) the Chief Executive Officer of PSCM, (ii) a director of PS Holdco GP and (iii) a member of ManagementCo, Mr. Ackman may be deemed to be the beneficial owner of the Subject Securities for purposes of Rule 16a-1(a) under the Exchange Act. Each of the Reporting Persons disclaims any beneficial ownership of any of the Subject Securities, except to the extent of any pecuniary interest therein.

F4 · ownership.nature: Anthony F. Massaro, a member of the board of directors of the Issuer of the Subject Securities, was appointed to that board as a representative of PSCM, the other Reporting Persons and the Pershing Square Affiliated Funds. As a result, each of those persons are directors by deputization for purposes of Section 16 of the Exchange Act.

SEC source: 0001415889-24-023463 · form4-09162024_100931.xml · nonDerivative · entry 1

PARTRIDGE MATTHEW MORRIS · CIK 0001663789 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,466

F1 · date: On July 31, 2024 (the "Distribution Date"), Howard Hughes Holdings Inc. ("HHH") completed a pro rata spin-off distribution (the "Distribution") of all of its shares of common stock of the Issuer to the holders of record of HHH common stock as of the close of business on July 29, 2024 (the "Record Date"). In connection with the Distribution, pursuant to the terms of the Employee Matters Agreement, dated as of July 31, 2024, by and between HHH and the Issuer (the "EMA"), all outstanding equity awards with respect to HHH common stock held by the Reporting Person were equitably adjusted and converted into equity awards with respect to the Issuer's common stock, with such equitable adjustments determined based on (i) the volume weighted average per-share price of HHH common stock for the three trading-day period ending on the Distribution Date and (ii) the volume weighted average per-share price of SEG common stock for the thirty trading-day period following the Distribution Date.

F2 · shares: Represents the grant of shares of restricted stock of SEG upon the conversion of restricted stock of HHH held by the Reporting Person as of July 31, 2024 in connection with the Distribution, in accordance with the terms of the EMA. The shares of SEG restricted stock were granted pursuant to the Seaport Entertainment Group Inc. 2024 Equity Incentive Plan in a manner intended to preserve the aggregate intrinsic value of the awards, on generally the same terms and conditions (including vesting schedules) as applicable to the corresponding shares of restricted stock of HHH. The shares of restricted stock of SEG vest annually in three substantially equal annual installments beginning on April 1, 2025, subject to the Reporting Person's continued service with the Issuer or its subsidiaries through such date.

F2 · price: Represents the grant of shares of restricted stock of SEG upon the conversion of restricted stock of HHH held by the Reporting Person as of July 31, 2024 in connection with the Distribution, in accordance with the terms of the EMA. The shares of SEG restricted stock were granted pursuant to the Seaport Entertainment Group Inc. 2024 Equity Incentive Plan in a manner intended to preserve the aggregate intrinsic value of the awards, on generally the same terms and conditions (including vesting schedules) as applicable to the corresponding shares of restricted stock of HHH. The shares of restricted stock of SEG vest annually in three substantially equal annual installments beginning on April 1, 2025, subject to the Reporting Person's continued service with the Issuer or its subsidiaries through such date.

SEC source: 0001415889-24-023462 · form4-09162024_100944.xml · nonDerivative · entry 1

Nikodemus Anton D. · CIK 0001996902 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 200,814

F1 · date: On July 31, 2024 (the "Distribution Date"), Howard Hughes Holdings Inc. ("HHH") completed a pro rata spin-off distribution (the "Distribution") of all of its shares of common stock of the Issuer to the holders of record of HHH common stock as of the close of business on July 29, 2024 (the "Record Date"). In connection with the Distribution, pursuant to the terms of the Employee Matters Agreement, dated as of July 31, 2024, by and between HHH and the Issuer (the "EMA"), all outstanding equity awards with respect to HHH common stock held by the Reporting Person were equitably adjusted and converted into equity awards with respect to the Issuer's common stock, with such equitable adjustments determined based on (i) the volume weighted average per-share price of HHH common stock for the three trading-day period ending on the Distribution Date and (ii) the volume weighted average per-share price of SEG common stock for the thirty trading-day period following the Distribution Date.

F2 · shares: Represents the grant of shares of restricted stock of SEG upon the conversion of restricted stock of HHH held by the Reporting Person as of July 31, 2024 in connection with the Distribution, in accordance with the terms of the EMA. The shares of SEG restricted stock were granted pursuant to the Seaport Entertainment Group Inc. 2024 Equity Incentive Plan in a manner intended to preserve the aggregate intrinsic value of the awards, on generally the same terms and conditions (including vesting schedules) as applicable to the corresponding shares of restricted stock of HHH. The shares of restricted stock of SEG vest annually in three substantially equal annual installments beginning on December 29, 2024, subject to the Reporting Person's continued service with the Issuer or its subsidiaries through such date.

F2 · price: Represents the grant of shares of restricted stock of SEG upon the conversion of restricted stock of HHH held by the Reporting Person as of July 31, 2024 in connection with the Distribution, in accordance with the terms of the EMA. The shares of SEG restricted stock were granted pursuant to the Seaport Entertainment Group Inc. 2024 Equity Incentive Plan in a manner intended to preserve the aggregate intrinsic value of the awards, on generally the same terms and conditions (including vesting schedules) as applicable to the corresponding shares of restricted stock of HHH. The shares of restricted stock of SEG vest annually in three substantially equal annual installments beginning on December 29, 2024, subject to the Reporting Person's continued service with the Issuer or its subsidiaries through such date.

SEC source: 0001415889-24-021050 · form4-08092024_080859.xml · nonDerivative · entry 1

Elaiwat Lenah · CIK 0002027972 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,303

F1 · shares: Represents restricted stock units ("RSUs") granted to the Reporting Person pursuant to the Issuer's 2024 Equity Incentive Plan (the "Plan"). Each RSU represents a contingent right to receive one share of the Issuer's common stock. 1,138 RSUs vest on August 1, 2025 and 6,165 RSUs vest in three substantially equal annual installments beginning on August 1, 2025, subject to the Reporting Person's continued service with the Issuer or its subsidiaries through such date.

SEC source: 0001415889-24-021046 · form4-08092024_080845.xml · nonDerivative · entry 1

PARTRIDGE MATTHEW MORRIS · CIK 0001663789 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,143

F1 · shares: Represents restricted stock units ("RSUs") granted to the Reporting Person pursuant to the Issuer's 2024 Equity Incentive Plan (the "Plan"). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest in three substantially equal installments beginning on August 1, 2025, subject to the Reporting Person's continued service with the Issuer or its subsidiaries through such date.

SEC source: 0001415889-24-021049 · form4-08092024_080831.xml · nonDerivative · entry 1

Fato Luciana · CIK 0001615708 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,062

F1 · shares: Represents restricted stock units ("RSUs") granted to the Reporting Person pursuant to the Issuer's 2024 Equity Incentive Plan (the "Plan"). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest in three substantially equal installments beginning on August 1, 2025, subject to the Reporting Person's continued service with the Issuer or its subsidiaries through such date.

SEC source: 0001415889-24-021045 · form4-08092024_080857.xml · derivative · entry 3

Nikodemus Anton D. · CIK 0001996902 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 241,546

Underlying: Common Stock · 241,546 shares

Expires 2034-08-07

SEC source: 0001415889-24-021045 · form4-08092024_080857.xml · derivative · entry 2

Nikodemus Anton D. · CIK 0001996902 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 206,016

Underlying: Common Stock · 206,016 shares

Expires 2034-08-07

SEC source: 0001415889-24-021045 · form4-08092024_080857.xml · nonDerivative · entry 1

Nikodemus Anton D. · CIK 0001996902 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,455

F1 · shares: Represents restricted stock units ("RSUs") granted to the Reporting Person pursuant to the Issuer's 2024 Equity Incentive Plan (the "Plan"). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest on August 1, 2029 , subject to the Reporting Person's continued service with the Issuer or its subsidiaries through such date.

SEC source: 0001104659-24-085354 · tm2420678-1_4seq1.xml · nonDerivative · entry 2

Howard Hughes Holdings Inc. · CIK 0001981792 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F3 · kind: In connection with the Spin-Off, on July 31, 2024 the Reporting Person effected a pro rata distribution of all of the Issuer's outstanding shares of common stock to its stockholders of record as of July 29, 2024.

F2 · shares: Amount adjusted to reflect the reclassification and conversion of all outstanding shares of common stock of the Issuer into an aggregate of 5,521,884 shares of the Issuer's common stock prior to the Spin-Off on July 31, 2024.

SEC source: 0001104659-24-085354 · tm2420678-1_4seq1.xml · nonDerivative · entry 1

Howard Hughes Holdings Inc. · CIK 0001981792 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,521,884

F1 · kind: In connection with certain restructuring transactions to effectuate the separation of the Issuer from the Reporting Person (the "Spin-Off"), the Issuer issued additional shares to certain wholly-owned subsidiaries of the Reporting Person in consideration for the contribution of certain assets, and such shares were subsequently transferred to the Reporting Person prior to the Spin-Off.

F2 · shares: Amount adjusted to reflect the reclassification and conversion of all outstanding shares of common stock of the Issuer into an aggregate of 5,521,884 shares of the Issuer's common stock prior to the Spin-Off on July 31, 2024.

F2 · balance_after: Amount adjusted to reflect the reclassification and conversion of all outstanding shares of common stock of the Issuer into an aggregate of 5,521,884 shares of the Issuer's common stock prior to the Spin-Off on July 31, 2024.