Skip to main content
FBLG logo

FBLG · FibroBiologics, Inc.

Track FBLG — free
$1.71 -0.24 (-12.16%)
Market Cap
$12.98M
Shares
6.66M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 15
Total Value: $270,016
Total Shares: 284,837

Institutional Ownership Trend

10 quarters

Holder Concentration

Across 15 13F filers · Δ vs Mar 31, 2026
Top Holder
38.2%
Mar 2024 → Jun 2026 · range 20.7% – 43.6%
+7.5 pts
Top 5
85.3%
Mar 2024 → Jun 2026 · range 55.2% – 86.4%
−1.1 pts
Top 10
99.0%
Mar 2024 → Jun 2026 · range 75.5% – 99.6%
−0.6 pts
HHI
2,128
Mar 2024 → Jun 2026 · range 930 – 2,297
Moderately concentrated+198

Quarterly Activity

vs Mar 31, 2026
New
2
Increased
5
Decreased
4
Sold Out
4
Unchanged
4
Holder count: -2
Institutional value: -7.0%
Shares held: +29.5%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 15 of 15
Export CSV
Holder Value (USD) % of 13F Shares Open
Key facts CIK 1958777 CUSIP 31573L204 13F (30d) 16 filings 16 filers Visit website Investor relations