StubHub (STUB) director Eric Baker converts Series M preferred into 55,048 Class A shares

Rhea-AI Filing Summary

StubHub Holdings director and officer Eric Howard Baker reported a conversion of preferred stock into common shares. Family trusts converted 1,000 shares of Series M redeemable preferred stock into 55,048 shares of Class A common stock pursuant to the terms in StubHub’s Certificate of Designation.

After this automatic conversion, Baker is shown holding 55,048 Class A shares indirectly through family trusts, 34,370 Class A shares indirectly through the Eric H. Baker Family Foundation, and 12,114,944 Class A shares directly.

Insider Trade Summary

1,000 shares exercised/converted

Mixed 4 txns

Insider Baker Eric Howard

Role See Remarks

Type	Security	Shares	Price	Value
Conversion	Series M Redeemable Preferred Stock	1,000	$0.00	--
Conversion	Class A Common Stock	55,048	$0.00	--
holding	Class A Common Stock	--	--	--
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Series M Redeemable Preferred Stock — 0 shares (Indirect, Held by family trusts); Class A Common Stock — 55,048 shares (Indirect, Held by family trusts); Class A Common Stock — 12,114,944 shares (Direct)

Footnotes (1)

1. [object Object]

Form 4 Insider Transactions: What Each Field Means →

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^*

Baker Eric Howard

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/17/2026

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	03/17/2026		C		55,048	A	(1)	55,048	I	Held by family trusts
Class A Common Stock								12,114,944	D
Class A Common Stock								34,370	I	Held by the Eric H. Baker Family Foundation

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
Series M Redeemable Preferred Stock	(1)	03/17/2026		C			1,000	(1)	(1)	Class A Common Stock	55,048	$0	0	I	Held by family trusts

Explanation of Responses:

1. Each share of Series M redeemable preferred stock automatically converted into shares of Class A common stock of the Issuer, pursuant to the terms as specified in the Issuer's Certificate of Designation.

Remarks:

Founder, Chairman and Chief Executive Officer

	/s/ Elizabeth Lynch, as Attorney-in-Fact for Eric H. Baker	03/19/2026
	** 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)

FAQ

What insider transaction did StubHub (STUB) director Eric Howard Baker report?

Eric Howard Baker reported a conversion of preferred into common stock. Family trusts converted 1,000 Series M redeemable preferred shares into 55,048 Class A common shares, as specified in StubHub’s Certificate of Designation, with no open-market buying or selling disclosed.

How many StubHub (STUB) shares were received in the reported conversion?

Family trusts associated with Eric Howard Baker received 55,048 shares of Class A common stock. These shares resulted from the automatic conversion of 1,000 shares of Series M redeemable preferred stock into StubHub Class A common stock under preset terms.

What are Eric Howard Baker’s StubHub (STUB) holdings after this Form 4?

Following the reported transactions, Eric Howard Baker holds 12,114,944 Class A shares directly, plus 55,048 Class A shares indirectly via family trusts and 34,370 Class A shares indirectly via the Eric H. Baker Family Foundation, according to the ownership lines in the filing.

Was the StubHub (STUB) transaction an open-market buy or sell?

No open-market buy or sell was reported. The Form 4 shows a conversion of Series M redeemable preferred stock into Class A common stock with a stated per-share transaction price of $0.0000, rather than a market purchase or sale.

Who holds the indirectly owned StubHub (STUB) shares for Eric Howard Baker?

The Form 4 shows indirect ownership through related entities. 55,048 Class A shares are held by family trusts, and 34,370 Class A shares are held by the Eric H. Baker Family Foundation, in addition to his separate direct Class A holdings.