Security key
31573L204
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 284,937
- Total 13F value
- $269,614
- Share change
- +64,445
- SEC-reported price per share
- $0.95
- Number of holders
- 16
- Value change
- +$54,150
- Number of buys
- 8
- Number of sells
- 7
- Shares outstanding
- 8,400,120
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2026
Institutions
16
Top holders
10
FBLG full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q1 2026
FibroBiologics, Inc. SEC filings
FibroBiologics, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 31573L204
Recent filing periods:
Ownership snapshot
Top reported holders of FBLG - FibroBiologics, Inc. - Common Stock (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
Pete O'Heeron
Disclosed value leader
Pete O'Heeron
Comparable rows
15/15
Latest evidence
30 Jun 2026
13D/G
3/4/5
13F
Lead comparable stake: 18%
13D/G row: Pete O'Heeron
Showing 1-6 of 15 holder rows.
Quick read
Pete O'Heeron leads the comparable SEC ownership view at 18%.
15 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 Pete O'Heeron's linked filing trail.
Comparable ownership
Top 5
Pete O'Heeron
18%
ARMISTICE CAPITAL, LLC
10%
Michael F. Newlin
5.6%
Lind Global Fund III LP
5%
BlackRock, Inc.
2%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Pete O'Heeron |
13D/G
3/4/5
CHIEF EXECUTIVE OFFICER, Director
|
18%
|
$7,229,517
6,951,459 shares
|
$0 | 31 Jan 2024 |
| ARMISTICE CAPITAL, LLC |
13D/G
|
10%
|
$635,520
738,977 shares
|
$0 | 30 Jun 2026 |
| Michael F. Newlin |
13D/G
Mike Newlin
|
5.6%
|
$1,857,322
2,134,853 shares
|
$0 | 09 Aug 2024 |
| Lind Global Fund III LP |
13D/G
|
5%
|
$78,280
230,234 shares
|
$0 | 02 Apr 2026 |
| BlackRock, Inc. |
13D/G
13F
Company
|
2%
|
$467,209
750,898 shares
|
-$644,162 | 30 Jun 2025 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
0.81%
|
$89,318
67,665 shares
|
— | 31 Mar 2026 |
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 Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
16
Shares
284,937
Rows available
16
| 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 Q2 2026 vs Q1 2026 Across Filers
Q1 2026 holders
16
Q2 2026 holders
16
Holder diff
0
| Investor | Q1 2026 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend