iBio, Inc. received an amended Schedule 13G filing showing that Logos Global Management LP and affiliated entities report beneficial ownership of 1,500,000 shares of iBio common stock. This stake represents 4.6% of the outstanding common shares, based on 32,540,942 shares outstanding as of January 30, 2026, as cited from iBio’s Form S-3.
The filing attributes the same 1,500,000-share, 4.6% position to Logos Global Management LP, Logos Global Management GP LLC, Logos Global Master Fund LP, Logos GP LLC, and Arsani William, with shared voting and dispositive power over all reported shares and no sole power. The reporting persons state the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of iBio. They also jointly file while expressly disclaiming group status and beneficial ownership beyond their pecuniary interest.
Positive
None.
Negative
None.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 1)
iBio, Inc.
(Name of Issuer)
Common Stock
(Title of Class of Securities)
451033708
(CUSIP Number)
12/31/2025
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)
SCHEDULE 13G
CUSIP No.
451033708
1
Names of Reporting Persons
Logos Global Management LP
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
1,500,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,500,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,500,000.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
4.6 %
12
Type of Reporting Person (See Instructions)
IA, PN
Comment for Type of Reporting Person: Percentage calculated based on 32,540,942 shares of Common Stock outstanding on January 30, 2026, as reported in the registration statement on Form S-3 filed by the Issuer January 30, 2026.
SCHEDULE 13G
CUSIP No.
451033708
1
Names of Reporting Persons
Logos Global Management GP LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
1,500,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,500,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,500,000.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
4.6 %
12
Type of Reporting Person (See Instructions)
HC, OO
Comment for Type of Reporting Person: Percentage calculated based on 32,540,942 shares of Common Stock outstanding on January 30, 2026, as reported in the registration statement on Form S-3 filed by the Issuer January 30, 2026.
SCHEDULE 13G
CUSIP No.
451033708
1
Names of Reporting Persons
Logos Global Master Fund LP
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
1,500,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,500,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,500,000.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
4.6 %
12
Type of Reporting Person (See Instructions)
PN
Comment for Type of Reporting Person: Percentage calculated based on 32,540,942 shares of Common Stock outstanding on January 30, 2026, as reported in the registration statement on Form S-3 filed by the Issuer January 30, 2026.
SCHEDULE 13G
CUSIP No.
451033708
1
Names of Reporting Persons
Logos GP LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
1,500,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,500,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,500,000.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
4.6 %
12
Type of Reporting Person (See Instructions)
HC, OO
Comment for Type of Reporting Person: Percentage calculated based on 32,540,942 shares of Common Stock outstanding on January 30, 2026, as reported in the registration statement on Form S-3 filed by the Issuer January 30, 2026.
SCHEDULE 13G
CUSIP No.
451033708
1
Names of Reporting Persons
William Arsani
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
UNITED STATES
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
1,500,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,500,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,500,000.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
4.6 %
12
Type of Reporting Person (See Instructions)
HC, IN
Comment for Type of Reporting Person: Percentage calculated based on 32,540,942 shares of Common Stock outstanding on January 30, 2026, as reported in the registration statement on Form S-3 filed by the Issuer January 30, 2026.
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
iBio, Inc.
(b)
Address of issuer's principal executive offices:
11750 Sorrento Valley Road, Suite 200, San Diego, CA 92121
Item 2.
(a)
Name of person filing:
Logos Global Management LP ("Logos Global")
Logos Global Management GP LLC ("Logos Global GP")
Logos Global Master Fund LP ("Global Fund")
Logos GP LLC ("Logos GP")
Arsani William
Logos Global is the investment adviser to investment funds, including Global Fund. Logos Global GP is the general partner of Logos Global. Logos GP is the general partner of Global Fund. Dr. William is a control person of Logos Global, Logos Global GP and Logos GP.
The reporting persons are filing this statement jointly but not as members of a group, and they expressly disclaim membership in a group. Each reporting person disclaims beneficial ownership of Common Stock except to the extent of that person's pecuniary interest therein. In addition, the filing of this Schedule 13G on behalf of the Global Fund should not be construed as an admission that it is, and it disclaims that it is, a beneficial owner, as defined in Rule 13d-3 under the Act, of any Common Stock covered by this Schedule 13G.
(b)
Address or principal business office or, if none, residence:
One Letterman Drive, Building C, Suite C3-350, San Francisco, California 94129
(c)
Citizenship:
See Item 4 of the cover sheet for each reporting person.
(d)
Title of class of securities:
Common Stock
(e)
CUSIP No.:
451033708
Item 3.
If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)
Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)
Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)
Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)
Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)
An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)
An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)
A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)
A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)
A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)
A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
(k)
Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.
Ownership
(a)
Amount beneficially owned:
Logos Global: 1,500,000
Logos Global GP: 1,500,000
Global Fund: 1,500,000
Logos GP: 1,500,000
Arsani William: 1,500,000
(b)
Percent of class:
Logos Global: 4.6%
Logos Global GP: 4.6%
Global Fund: 4.6%
Logos GP: 4.6%
Arsani William: 4.6%
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
Logos Global: 0
Logos Global GP: 0
Global Fund: 0
Logos GP: 0
Arsani William: 0
(ii) Shared power to vote or to direct the vote:
Logos Global: 1,500,000
Logos Global GP: 1,500,000
Global Fund: 1,500,000
Logos GP: 1,500,000
Arsani William: 1,500,000
(iii) Sole power to dispose or to direct the disposition of:
Logos Global: 0
Logos Global GP: 0
Global Fund: 0
Logos GP: 0
Arsani William: 0
(iv) Shared power to dispose or to direct the disposition of:
Logos Global: 1,500,000
Logos Global GP: 1,500,000
Global Fund: 1,500,000
Logos GP: 1,500,000
Arsani William: 1,500,000
Item 5.
Ownership of 5 Percent or Less of a Class.
Ownership of 5 percent or less of a class
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
Not Applicable
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
Not Applicable
Item 8.
Identification and Classification of Members of the Group.
Not Applicable
Item 9.
Notice of Dissolution of Group.
Not Applicable
Item 10.
Certifications:
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
Logos Global Management LP
Signature:
/s/ Arsani William
Name/Title:
Managing Partner
Date:
02/13/2026
Logos Global Management GP LLC
Signature:
/s/ Arsani William
Name/Title:
Managing Member
Date:
02/13/2026
Logos Global Master Fund LP
Signature:
/s/ Arsani William
Name/Title:
Managing Member of Logos GP LLC, General Partner of Logos Global Master Fund LP
Date:
02/13/2026
Logos GP LLC
Signature:
/s/ Arsani William
Name/Title:
Managing Member
Date:
02/13/2026
William Arsani
Signature:
/s/ Arsani William
Name/Title:
Reporting person
Date:
02/13/2026
Exhibit Information
EXHIBIT 99.1-AGREEMENT REGARDING JOINT FILING OF STATEMENT ON SCHEDULE 13D OR 13G
What ownership stake in iBio (IBIO) does Logos Global report in this Schedule 13G/A?
Logos Global and related entities report beneficial ownership of 1,500,000 iBio common shares, or 4.6% of the class. This percentage is based on 32,540,942 shares outstanding as of January 30, 2026, cited from iBio’s Form S-3.
Who are the reporting persons in the iBio (IBIO) Schedule 13G/A amendment?
The reporting persons are Logos Global Management LP, Logos Global Management GP LLC, Logos Global Master Fund LP, Logos GP LLC, and Arsani William. They file jointly but expressly disclaim forming a group and limit beneficial ownership to their pecuniary interests.
How much voting power over iBio (IBIO) shares do the Logos entities report?
Each reporting person reports 0 shares with sole voting power and 1,500,000 shares with shared voting power. They likewise report no sole dispositive power and shared dispositive power over the same 1,500,000 iBio common shares.
On what share count is the 4.6% iBio (IBIO) ownership calculation based?
The 4.6% ownership figure is calculated using 32,540,942 iBio common shares outstanding as of January 30, 2026. This outstanding share count is referenced from iBio’s registration statement on Form S-3 filed on that date.
Does the iBio (IBIO) Schedule 13G/A indicate an attempt to influence control of the company?
The reporting persons certify the securities were acquired and are held in the ordinary course of business and not for changing or influencing control. They also state the holdings are not in connection with any transaction seeking such control, aside from limited nomination-related activities.
What is the date of the event triggering this iBio (IBIO) Schedule 13G/A filing?
The date of the event requiring the filing is listed as December 31, 2025. The signatures on the amended Schedule 13G are dated February 13, 2026, when the reporting persons certified the accuracy of the ownership information provided.
