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 35 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	Lynx1 Capital Management LP CIK 1910456 · View history	$3.47M 862,279 shares	1.24%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2025	▾
02	Ikarian Capital, LLC CIK 1778253 · View history	$2.41M 599,913 shares	0.79%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2025	▾
03	Opaleye Management Inc. CIK 1595855 · View history	$1.51M 375,000 shares	0.34%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2025	▾
04	BOOTHBAY FUND MANAGEMENT, LLC CIK 1549230 · View history	$640.98K 159,448 shares	0.02%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2025	▾
05	VANGUARD GROUP INC CIK 102909 · View history	$578.32K 143,861 shares	0.00%	+70.72K(+96.70%)Added	SEC filing ↗ May 9, 2025	▾
06	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$412.49K 102,609 shares	0.00%	+18.81K(+22.40%)Added	SEC filing ↗ May 13, 2025	▾
07	IRIDIAN ASSET MANAGEMENT LLC/CT CIK 1033427 · View history	$233.98K 58,205 shares	0.07%	+58.20KNew	SEC filing ↗ Apr 30, 2025	▾
08	Cubist Systematic Strategies, LLC CIK 1603465 · View history	$223.51K 55,600 shares	0.00%	+55.60KNew	SEC filing ↗ May 15, 2025	▾
09	BlackRock, Inc. CIK 2012383 · View history	$171.76K 42,727 shares	0.00%	+37.15K(+666.50%)Added	SEC filing ↗ May 2, 2025	▾
10	STATE STREET CORP CIK 93751 · View history	$135.47K 33,699 shares	0.00%	+33.70KNew	SEC filing ↗ May 15, 2025	▾
11	SUSQUEHANNA INTERNATIONAL GROUP, LLP CIK 1446194 · View history	$130.30K 32,413 shares	0.00%	+32.41KNew	SEC filing ↗ May 14, 2025	▾
12	Quadrature Capital Ltd CIK 1651424 · View history	$115.69K 28,850 shares	0.00%	+28.85KNew	SEC filing ↗ May 13, 2025	▾
13	UBS Group AG CIK 1610520 · View history	$104.08K 25,890 shares	0.00%	+24.99K(+2,779.90%)Added	SEC filing ↗ May 13, 2025	▾
14	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$97.08K 24,150 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ May 13, 2025	▾
15	NORTHERN TRUST CORP CIK 73124 · View history	$92.64K 23,044 shares	0.00%	+12.88K(+126.70%)Added	SEC filing ↗ May 13, 2025	▾
16	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$54.21K 13,484 shares	0.00%	+13.48KNew	SEC filing ↗ May 15, 2025	▾
17	MORGAN STANLEY CIK 895421 · View history	$15.18K 3,775 shares	0.00%	+3.73K(+7,764.60%)Added	SEC filing ↗ May 15, 2025	▾
18	ROYAL BANK OF CANADA CIK 1000275 · Amended · View history	$4.00K 1,000 shares	0.00%	+992(+12,400.00%)Added	SEC filing ↗ May 15, 2025	▾
19	SBI Securities Co., Ltd. CIK 1851815 · View history	$1.61K 400 shares	0.00%	+133(+49.80%)Added	SEC filing ↗ May 2, 2025	▾
20	OSAIC HOLDINGS, INC. CIK 1677044 · View history	$1.42K 353 shares	0.00%	+297(+530.40%)Added	SEC filing ↗ May 12, 2025	▾

Showing 20 / 35 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

2,587,200

Not deduplicated across managers

Disclosed value

$10.40M

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. · Q1 2025

Explore all 35 reporting institutions.

This page includes 20 of 35 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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Sources, coverage & how to read this data

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.