Notice of Proposed Sale · 144

StubHub Holdings, Inc.

STUBNYSEEQUITYCurrent

Notice of Proposed Sale

Filed Aug 17, 2026Accepted Aug 17, 2026, 4:24 PM EDTFiling CIK 1885900Accession 0001968582-26-000844

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Structured filing — 144

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Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.

Proposed-sale notice

Issuer: STUBHUB HOLDINGS INC
Issuer CIK: 0001337634
SEC file number: 001-42846
Phone: 888-977-5364
Person for whose account securities are to be sold: Mark Streams
Relationships to issuer: Officer, Director
Street: 175 Greenwich Street, 59th Floor
City: New York
State / country code: NY
Postal code: 10007

Securities proposed for sale

Securities proposed for sale · 1 reported row
Security	Proposed units	Aggregate market value	Units outstanding	Approximate sale date	Exchange	Broker / market maker
Class A Common	334,746	2,647,841	357,339,966	08/17/2026	NYSE	J.P. Morgan Securities LLC

Broker / market maker — proposed row 1, entry 1

Name: J.P. Morgan Securities LLC
Street: 270 Park Avenue
Street (continued): 10th Floor
City: New York
State / country code: NY
Postal code: 10017

Acquisition of securities to be sold

Acquisition of securities to be sold · 4 reported rows
Security	Acquired	Nature of acquisition	Acquired from	Amount acquired	Gift transaction	Payment date	Nature of payment
Class A Common	12/04/2020	Stock Option Exercise	Issuer	328,777	N	06/29/2026	Cash
Class A Common	12/16/2025	RSU Vest	Issuer	1,991	N	12/16/2025	NA
Class A Common	01/13/2026	RSU Vest	Issuer	1,989	N	01/13/2026	NA
Class A Common	02/10/2026	RSU Vest	Issuer	1,989	N	02/10/2026	NA

Sales reported in the preceding three months

Sales reported in the preceding three months · 5 reported rows
Seller	Security	Sale date	Amount sold	Gross proceeds
Mark Streams	Class A Common	06/29/2026	300	3,900
Mark Streams	Class A Common	06/30/2026	18,167	236,751
Mark Streams	Class A Common	07/01/2026	3,002	39,026
Mark Streams	Class A Common	07/06/2026	28,531	371,402
Mark Streams	Class A Common	07/07/2026	400	5,603

Seller — prior-sale row 1, entry 1

Name: Mark Streams
Street: 175 Greenwich Street, 59th Floor
City: New York
State / country code: NY
Postal code: 10007

Seller — prior-sale row 2, entry 1

Name: Mark Streams
Street: 175 Greenwich Street, 59th Floor
City: New York
State / country code: NY
Postal code: 10007

Seller — prior-sale row 3, entry 1

Name: Mark Streams
Street: 175 Greenwich Street, 59th Floor
City: New York
State / country code: NY
Postal code: 10007

Seller — prior-sale row 4, entry 1

Name: Mark Streams
Street: 175 Greenwich Street, 59th Floor
City: New York
State / country code: NY
Postal code: 10007

Seller — prior-sale row 5, entry 1

Name: Mark Streams
Street: 175 Greenwich Street, 59th Floor
City: New York
State / country code: NY
Postal code: 10007

Prior-sale reporting

Nothing to report for the preceding three months: N

Notice signature

Notice date: 08/17/2026
Signed: /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Mark Streams

Company context

StubHub is a leading global ticketing marketplace for live events. Through StubHub and its international brand viagogo, the company services customers in over 200 countries and territories, supporting over 30 languages and accepting payments in over 45 currencies - from sports to music, comedy to dance, festivals to theater. StubHub offers a safe and convenient way to buy or sell tickets to live events across the world for memorable live experiences.

Current securities

STUBNYSE · EQUITY · Current

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