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FBLG FIBROBIOLOGICS INC

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COM (common), issuer CIK 1958777

15 managers (17 13F filers) reported a position in FBLG shares at 2026-03-31, 220,680 shares in all. 14 filers opened a position and 0 filers sold out during the quarter.

Managers
15
13F filers
17
New
14
Added
0
Reduced
0
Sold out
0
Shares held by filers
220,680

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
VANGUARD GROUP INCgroup of 3 filers holding74,581$98.4KnewTimeline
Fund Evaluation Group, LLC51,794$68.4K<0.01%new13F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC29,609$39.1K<0.01%new13F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.24,647$32.5K<0.01%new13F-HRTimelineGroup
Cascade Financial Partners, LLC16,428$21.7K<0.01%new13F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC15,997$21.1K<0.01%new13F-HRTimeline
UBS Group AGin group UBS Group AG5,721$7.55K<0.01%new13F-HRTimelineGroup
NewEdge Advisors, LLC845$1.11K<0.01%new13F-HR/ATimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…460$607<0.01%new13F-HRTimelineGroup
ISLAY CAPITAL MANAGEMENT, LLC169$223<0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.154$203<0.01%new13F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS66$87<0.01%new13F-HRTimelineGroup
Allworth Financial LP13$18<0.01%new13F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN10$13<0.01%new13F-HR/ATimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA186$00%new13F-HRTimelineGroupValue filed as zero, left out of ratios.