StubHub (STUB) legal chief sells shares not under 10b5-1 plan

Rhea-AI Filing Summary

StubHub Holdings, Inc. (STUB) reported that Executive Vice Chairman & Chief Legal Officer Mark Streams sold shares of Class A Common Stock in three open-market or private transactions. On August 24, 2026, he sold 150,000 shares at a weighted average price of $6.7646 per share, with individual trades between $6.7500 and $6.7950. On August 25, 2026, he sold 10,176 shares at a weighted average price of $6.8446, with trades between $6.8400 and $6.8450. On August 21, 2026, he sold 6,500 shares at $6.93 per share. All sales were reported as direct ownership, and the filing indicates these transactions were not made pursuant to a Rule 10b5-1 trading plan.

Insider Trade Summary

Net Seller: 166,676 shares

Net Sell 3 txns

Insider Streams Mark

Role See Remarks

Sold 166,676 shs ($1.13M)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F2	10,176	$6.8446	$70K
Sale	Class A Common Stock F1	150,000	$6.7646	$1.01M
Sale	Class A Common Stock	6,500	$6.93	$45K

Holdings After Transaction: Class A Common Stock — 1,394,046 shares (Direct)

Footnotes (2)

1. F1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.7500 to $6.7950. The reporting person undertakes to provide 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 sold at each separate price within the ranges set forth in footnotes (1) and (2) to this Form 4.
2. F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.8400 to $6.8450.

Key Figures

Shares sold August 21, 2026: 6,500 shares Shares sold August 24, 2026: 150,000 shares Price range August 24, 2026: $6.7500–$6.7950 per share +3 more

6 metrics

Shares sold August 21, 2026 6,500 shares Sale of Class A Common Stock at $6.93 per share

Shares sold August 24, 2026 150,000 shares Sale of Class A Common Stock at weighted average $6.7646 per share

Price range August 24, 2026 $6.7500–$6.7950 per share Multiple transactions; weighted average $6.7646

Shares sold August 25, 2026 10,176 shares Sale of Class A Common Stock at weighted average $6.8446 per share

Price range August 25, 2026 $6.8400–$6.8450 per share Multiple transactions; weighted average $6.8446

Total shares sold in filing 166,676 shares Net-sell activity across three transactions

Key Terms

weighted average price, open market or private transaction, Rule 10b5-1

3 terms

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

open market or private transaction financial

"transaction_code_description: Sale in open market or private transaction"

Rule 10b5-1 regulatory

"The filing’s Rule 10b5-1 checkbox is marked false"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

What insider transactions did STUB report for Mark Streams in this Form 4?

The Form 4 reports that Mark Streams sold a total of 166,676 shares of StubHub Holdings, Inc. Class A Common Stock in three transactions on August 21, 24, and 25, 2026, all coded as open market or private sales (S) under direct ownership.

At what prices did Mark Streams sell STUB Class A Common Stock?

On August 21, 2026, shares were sold at $6.93 per share. On August 24, 2026, the weighted average price was $6.7646, with trades from $6.7500 to $6.7950. On August 25, 2026, the weighted average price was $6.8446, with trades from $6.8400 to $6.8450.

How many STUB shares did Mark Streams sell on each reported date?

Mark Streams sold 6,500 shares on August 21, 2026, 150,000 shares on August 24, 2026, and 10,176 shares on August 25, 2026, all involving StubHub Holdings, Inc. Class A Common Stock.

Were Mark Streams’ STUB share sales made under a Rule 10b5-1 trading plan?

No. The filing’s Rule 10b5-1 checkbox is marked false, indicating the reported transactions were not affirmed as being made pursuant to a Rule 10b5-1 trading plan or other pre-arranged trading arrangement.

What type of ownership did Mark Streams report for these STUB transactions?

All three transactions were reported under direct ownership of StubHub Holdings, Inc. Class A Common Stock, coded as D for ownership type in the Form 4 data.

What is the overall direction of insider activity for Mark Streams in this STUB filing?

The filing shows only sales of StubHub Holdings, Inc. Class A Common Stock. There were three sale transactions totaling 166,676 shares, with no reported purchases, exercises, or gifts in this Form 4.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/25/2026 - 06:02 PM Accepted by SEC EDGAR 08/25/2026 - 06:01 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Streams Mark

(Last) (First) (Middle)

C/O STUBHUB HOLDINGS, INC.

175 GREENWICH STREET, 59TH FLOOR

(Street)

NEW YORK NEW YORK 10007

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
StubHub Holdings, Inc. [ STUB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	See Remarks

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/21/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	08/21/2026		S		6,500	D	$6.93	1,554,222	D
Class A Common Stock	08/24/2026		S		150,000	D	$6.7646(1)	1,404,222	D
Class A Common Stock	08/25/2026		S		10,176	D	$6.8446(2)	1,394,046	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.7500 to $6.7950. The reporting person undertakes to provide 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 sold at each separate price within the ranges set forth in footnotes (1) and (2) to this Form 4.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $6.8400 to $6.8450.

Remarks:

Executive Vice Chairman & Chief Legal Officer

	/s/ Mark Streams	08/25/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)