Sec Form 4 Filing - DART KENNETH BRYAN @ iBio, Inc. - 2017-02-23

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

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person DART KENNETH BRYAN 2. Issuer Name and Ticker or Trading Symbol iBio, Inc. [ IBIO] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) P. O. BOX 31300 3. Date of Earliest Transaction (MM/DD/YY) 02/23/2017 (Street) GRAND CAYMAN, E9KY1-1206 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 Preferred Stock ( 1 ) 02/23/2017 P( 1 ) 1 A 1 I By Company ( 1 )

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other DART KENNETH BR YAN P. O. BOX 31300 GRAND CAYMAN, E9KY1-1206 X Signatures Kenneth B. Dart 02/27/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )On February 23, 2017, an entity indirectly owned 100% by Kenneth B. Dart ("the Affiliate") acquired one (1) share of the Issuer's Preferred Stock designated as iBio CMO Preferred Tracking Stock with a par value of $0.001 per share (the "Preferred Stock") in exchange for 29,990,000 units of limited liability company interests of iBio CMO LLC ("Units") held by the Affiliate. iBio CMO LLC is a subsidiary of the Issuer. The shares of the Preferred Stock are exchangeable for Units only after March 31, 2018 ("Mandatory Exchange"), or an event which triggers a change of control of iBio CMO LLC, or in connection with a winding up, liquidation or deemed liquidation (such as a merger) of the Issuer or iBio CMO. The Preferred Stock is not convertible into or exchangeable for any of the Issuer's securities. The Preferred Stock has no voting rights with respect to the Issuer.

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).

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