Form 13-F position report

IBIO INC

Reported by VANGUARD GROUP INC

IBIO CUSIP 451033708 Manager CIK 0000102909

Reported 143,861 shares, unchanged from the prior quarter.

Reported value -81.0%; share count 0.0% vs. the prior quarter.

Unchanged
% of reported 13F value < 0.01% This manager · Q2 2025
Shares 143,861 Quarter-end amount reported
Reported value $109,766 Fair value at quarter end
Consecutive quarters held 5 Through Q2 2025

Reported position value by quarter

Reported position value by quarter

Each bar is a Form 13-F quarter-end snapshot. It does not show trades made within the quarter.

Reported position value by quarter
Date Holding Value
2024-06-30 75956
2024-09-30 79916
2024-12-31 179205
2025-03-31 578321
2025-06-30 109766
2025-09-30 226930
2025-12-31 1704478

Quarterly position history

How this manager's reported quarter-end position changed over time.

7 quarters
Quarterly reported position history for IBIO INC held by VANGUARD GROUP INC.
Quarter Activity Shares Change % of reported 13F Reported value Filed Source filing
Q4 2025 Added 883,149 +609,079 (222.2%) < 0.01% $1,704,478 2026-01-29
Q3 2025 Added 274,070 +130,209 (90.5%) < 0.01% $226,930 2025-11-07
Q2 2025 Unchanged 143,861 0 (0.0%) < 0.01% $109,766 2025-08-11
Q1 2025 Added 143,861 +70,716 (96.7%) < 0.01% $578,321 2025-05-09
Q4 2024 Added 73,145 +37,147 (103.2%) < 0.01% $179,205 2025-02-11
Q3 2024 Unchanged 35,998 0 (0.0%) < 0.01% $79,916 2024-11-13
Q2 2024 New 35,998 +35,998 (0.0%) < 0.01% $75,956 2024-08-13

Who else reported the position

40 managers reported IBIO INC for Q2 2025.

Managers reporting IBIO INC in Q2 2025.
Manager Activity Shares Change % of reported 13F Reported value Tenure
Lynx1 Capital Management LP Added 1,538,573 +676,294 0.34% $1,174,085 6 qtrs
Ikarian Capital LLC Unchanged 599,913 0 0.09% $457,794 6 qtrs
Opaleye Management Inc Unchanged 375,000 0 0.06% $285,000 6 qtrs
BOOTHBAY FUND MANAGEMENT LLC Unchanged 159,448 0 < 0.01% $121,675 5 qtrs
VANGUARD GROUP INC This report Unchanged 143,861 0 < 0.01% $109,766 5 qtrs
GEODE CAPITAL MANAGEMENT LLC Added 112,301 +9,692 < 0.01% $85,696 5 qtrs
ADAR1 Capital Management LLC New 54,819 +54,819 < 0.01% $41,832 6 qtrs
BlackRock Inc Unchanged 42,727 0 < 0.01% $32,605 4 qtrs
Virtu Financial LLC New 40,181 +40,181 < 0.01% $31,000 1 qtr
STATE STREET CORPORATION Unchanged 33,699 0 < 0.01% $25,716 2 qtrs
Premium adds each manager's conviction percentile across reporting peers.
Filing details and methodology As reported
Report period
June 30, 2025
Filed
August 11, 2025
Filing type
13F-HR
Position type
COM NEW

Voting authority reported

Sole
0
Shared
0
None
143,861

“None” means the manager reported no voting authority for those shares on non-routine matters. It does not disclose why and is not evidence of securities lending.

Form 13-F is a delayed quarter-end snapshot of disclosed long Section 13(f) securities. It can be filed up to 45 days after quarter end, excludes short positions and most non-U.S. securities, and does not reveal intra-quarter trading. For options, reported shares and value describe the underlying-share exposure; strike, expiry, premium, and written positions are not disclosed.