Elizabeth Stoner joins iBio (IBIO) board and files initial Form 3

Rhea-AI Filing Summary

iBio, Inc. filed an initial ownership report for director Elizabeth Stoner on Form 3. This filing establishes her status as a board member under SEC reporting rules but does not list any stock or option transactions. It is an administrative disclosure that begins her ongoing insider reporting obligations.

Key Figures

Buy transactions reported: 0 Sell transactions reported: 0 Derivative transactions reported: 0

3 metrics

Buy transactions reported 0 Form 3 transaction summary

Sell transactions reported 0 Form 3 transaction summary

Derivative transactions reported 0 Form 3 derivative transaction count

Key Terms

Form 3, director, insider reporting obligations

3 terms

Form 3 regulatory

"filed an initial ownership report for director Elizabeth Stoner on Form 3"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

director financial

"Elizabeth Stoner is a director of iBio, Inc."

insider reporting obligations regulatory

"begins her ongoing insider reporting obligations"

Understanding Insider Trading Forms →

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
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1. Name and Address of Reporting Person^*

Stoner Elizabeth

(Last) (First) (Middle)

C/O IBIO, INC.,

11750 SORRENTO VALLEY ROAD, SUITE 200

(Street)

SAN DIEGO CALIFORNIA 92121

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
05/07/2026

3. Issuer Name and Ticker or Trading Symbol
iBio, Inc. [ IBIO ]

3a. Foreign Trading Symbol

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

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

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

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

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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

Exhibit 24- Power of Attorney

No securities are beneficially owned.

	/s/ Marc Banjak, Attorney-in-fact	05/15/2026
	** 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 5 (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 3: SEC 1473 (03-26)

FAQ

What does the iBio (IBIO) Form 3 filing for Elizabeth Stoner show?

The Form 3 shows that Elizabeth Stoner is a director of iBio, Inc. It is an initial ownership report and does not list any buying or selling activity or derivative positions in this filing.

Does the iBio (IBIO) Form 3 indicate that Elizabeth Stoner bought or sold shares?

No, this Form 3 reports no transactions for Elizabeth Stoner. All transaction-related counts, including buys, sells, exercises, gifts, and restructurings, appear as zero in the summary fields provided.

What role does Elizabeth Stoner have at iBio (IBIO) according to the Form 3?

According to the Form 3, Elizabeth Stoner is identified as a director of iBio, Inc. She is not listed as an officer or a ten percent owner, indicating her position is specifically on the board.

Why is a Form 3 filing for iBio (IBIO) important to investors?

A Form 3 is important because it starts an insider’s disclosure record. Once filed, any future trades or grants involving that insider generally appear on Forms 4 or 5, improving transparency around insider holdings.

Does the iBio (IBIO) Form 3 include any derivative securities for Elizabeth Stoner?

No, the derivative summary is empty in this Form 3. That means the filing does not list any options, warrants, or other derivative positions for Elizabeth Stoner as part of this initial ownership report.