Company · Ownership research

iBio, Inc. IBIO

CIK 0001420720 · CUSIP 451033708

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 451033708 (IBIO), not CUSIP 451033609 (IBIO), CUSIP 451033104 (IBIO), CUSIP 451033203 (IBIO), CUSIP 45107K102 (IBIO), and does not merge CUSIPs.

This page lists the top 20 of 55 rows by value; the complete set is available through the API.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	Affinity Asset Advisors, LLC CIK 1773195 · View history	$7.01M 4,007,881 shares	0.34%	+900.68K(+29.00%)Added	SEC filing ↗ Aug 13, 2026	▾
02	Cormorant Asset Management, LP CIK 1583977 · View history	$6.25M 3,570,000 shares	0.32%	+3.57MNew	SEC filing ↗ Aug 14, 2026	▾
03	SILVERARC CAPITAL MANAGEMENT, LLC CIK 1816307 · View history	$6.16M 3,520,490 shares	0.69%	+3.29M(+1,457.70%)Added	SEC filing ↗ Aug 13, 2026	▾
04	Vestal Point Capital, LP CIK 1974915 · View history	$4.55M 2,600,000 shares	0.11%	+2.60MNew	SEC filing ↗ Aug 14, 2026	▾
05	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · View history	$3.67M 2,098,151 shares	0.00%	+1.01M(+92.80%)Added	SEC filing ↗ Aug 13, 2026	▾
06	Frazier Life Sciences Management, L.P. CIK 1892134 · View history	$3.42M 1,953,467 shares	0.07%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2026	▾
07	Ensign Peak Advisors, Inc CIK 1454984 · View history	$3.21M 1,832,457 shares	0.01%	+1.83MNew	SEC filing ↗ Aug 14, 2026	▾
08	Woodline Partners LP CIK 1784547 · View history	$3.11M 1,776,547 shares	0.01%	+1.78MNew	SEC filing ↗ Aug 14, 2026	▾
09	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$2.89M 1,651,473 shares	0.00%	+101.62K(+6.60%)Added	SEC filing ↗ Aug 14, 2026	▾
10	CITADEL ADVISORS LLC CIK 1423053 · Amended · View history	$2.42M 1,384,029 shares	0.00%	+427.60K(+44.70%)Added	SEC filing ↗ Sep 2, 2026	▾
11	Balyasny Asset Management L.P. CIK 1218710 · View history	$2.05M 1,170,893 shares	0.00%	+159.94K(+15.80%)Added	SEC filing ↗ Aug 14, 2026	▾
12	BANK OF AMERICA CORP /DE/ CIK 70858 · View history	$1.96M 1,121,492 shares	0.00%	+831.08K(+286.20%)Added	SEC filing ↗ Aug 14, 2026	▾
13	Ikarian Capital, LLC CIK 1778253 · View history	$1.67M 957,062 shares	0.27%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2026	▾
14	Sio Capital Management, LLC CIK 1482416 · View history	$1.58M 904,268 shares	0.27%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2026	▾
15	MARSHALL WACE, LLP CIK 1318757 · View history	$1.58M 904,132 shares	0.00%	+283.53K(+45.70%)Added	SEC filing ↗ Aug 13, 2026	▾
16	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$876.65K 500,816 shares	0.00%	+113.25K(+29.20%)Added	SEC filing ↗ Aug 12, 2026	▾
17	Walleye Capital LLC CIK 1758720 · View history	$875.66K 500,375 shares	0.00%	+111.82K(+28.80%)Added	SEC filing ↗ Aug 3, 2026	▾
18	Squarepoint Ops LLC CIK 1642575 · View history	$873.03K 498,872 shares	0.00%	+498.87KNew	SEC filing ↗ Aug 14, 2026	▾
19	NOESIS CAPITAL MANGEMENT CORP CIK 1262677 · View history	$708.75K 405,000 shares	0.09%	+93.50K(+30.00%)Added	SEC filing ↗ Aug 4, 2026	▾
20	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$701.17K 400,667 shares	0.00%	-8.19K(-2.00%)Reduced	SEC filing ↗ Aug 14, 2026	▾

Showing 20 / 55 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

34,740,154

Not deduplicated across managers

Disclosed value

$60.80M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

iBio, Inc. · Q2 2026

Explore all 55 reporting institutions.

This page includes 20 of 55 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.