Security key
451033708
iBio, Inc. - Common Stock, par value $0.001 per share (IBIO)
CUSIP: 451033708
Q1 2023 13F Holders as of 31 Mar 2023
- Security type / class
- Equity / Common Stock, par value $0.001 per share
- Total 13F shares
- 8
- Total 13F value
- $17
- Share change
- +8
- SEC-reported price per share
- $2.12
- Number of holders
- 1
- Value change
- +$17
- Number of buys
- 1
- Shares outstanding
- 64,277,140
Holder snapshot
5 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2023
Institutions
1
Top holders
1
IBIO full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
iBio, Inc. SEC filings
iBio, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 451033708
Recent filing periods:
Ownership snapshot
Top reported holders of IBIO - iBio, Inc. - Common Stock, par value $0.001 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
SABBY MANAGEMENT, LLC
Disclosed value leader
SABBY MANAGEMENT, LLC
Comparable rows
0/15
Latest evidence
31 Dec 2022
13F
3/4/5
Highest disclosed value: $217,956
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
SABBY MANAGEMENT, LLC has the largest disclosed position value at $218K.
0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens SABBY MANAGEMENT, LLC's linked filing trail.
Disclosed position value
Top 5
SABBY MANAGEMENT, LLC
$218K
VANGUARD GROUP INC
$211.4K
RENAISSANCE TECHNOLOGIES LLC
$170K
BlackRock Finance, Inc.
$119.7K
Randy Joe Maddux
$72.2K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| SABBY MANAGEMENT, LLC |
13F
Company
|
—
denominator unverified
|
$217,956
490,451 shares
|
— | 31 Dec 2022 |
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$211,354
475,593 shares
|
— | 31 Dec 2022 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
—
denominator unverified
|
$170,000
381,595 shares
|
— | 31 Dec 2022 |
| BlackRock Finance, Inc. |
13F
Company
|
—
denominator unverified
|
$119,721
269,400 shares
|
— | 31 Dec 2022 |
| Randy Joe Maddux |
3/4/5
Chief Operating Officer
|
—
denominator unverified
|
$72,151
271,757 shares
|
— | 07 Dec 2021 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
Company
|
—
denominator unverified
|
$59,926
134,846 shares
|
— | 31 Dec 2022 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
1
Shares
8
Rows available
1
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2023 vs Q2 2026 Across Filers
Q2 2026 holders
55
Q1 2023 holders
1
Holder diff
-54
| Investor | Q2 2026 Shares | Q1 2023 Shares | Share Diff | Share Chg % | Q2 2026 value | Q1 2023 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend