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FibroBiologics, Inc.

FBLG
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001958777

No open-market purchases or sales by FibroBiologics, Inc. insiders were filed in the last 90 days; 16 institutions reported holding it in 13F filings for Q2 2026, worth $269.6K in total; no superinvestor holds it.

13F holders, Q4 2025

Institutional positions in FibroBiologics, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
46
−9 vs. Q3 2025
Shares held
4.42M
−975.7K (−18.1%) vs. Q3 2025
Total value
$993.8K
−$1.94M (−66.1%) vs. Q3 2025
New holders
6
8 more added
Sold out
15
7 more reduced

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting FBLG on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2025: 46 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 0 institutionsQ1 2024: 17 institutionsQ2 2024: 50 institutionsQ3 2024: 61 institutionsQ4 2024: 64 institutionsQ1 2025: 65 institutionsQ2 2025: 59 institutionsQ3 2025: 55 institutionsQ4 2025: 46 institutionsQ1 2026: 17 institutionsQ2 2026: 16 institutions
Value heldQ4 2025: $993.8K
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $0Q1 2024: $5.18MQ2 2024: $17.2MQ3 2024: $16.8MQ4 2024: $11.9MQ1 2025: $5.81MQ2 2025: $3.75MQ3 2025: $2.93MQ4 2025: $993.8KQ1 2026: $291.1KQ2 2026: $269.6K
Institutions holding FBLG and their total value by quarter
QuarterHoldersValue
Q2 202616$269.6K
Q1 202617$291.1K
Q4 202546$993.8K
Q3 202555$2.93M
Q2 202559$3.75M
Q1 202565$5.81M
Q4 202464$11.9M
Q3 202461$16.8M
Q2 202450$17.2M
Q1 202417$5.18M
Q4 20230$0
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding FibroBiologics, Inc.; share changes are against Q3 2025.

Institutions holding FBLG in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc1,216,341$273.7K0.00%−17,440−1.4%Reduced
BlackRock, Inc.482,401$108.5K0.00%+42,628+9.7%Added
Geode Capital Management, LLC348,761$78.5K0.00%+59,813+20.7%Added
Cascade Financial Partners, LLC314,581$70.7K0.01%+16,500+5.5%Added
Millennium Management LLC288,496$64.9K0.00%−157,712−35.3%Reduced
Renaissance Technologies LLC231,600$52.1K0.00%+171,800+287.3%Added
Jane Street Group, LLC149,763$33.7K0.00%+149,763New
AMG National Trust Bank138,960$31.3K0.00%+138,960New
UBS Group AG120,770$27.2K0.00%+43,336+56.0%Added
State Street Corp111,300$25.0K0.00%00.0%Unchanged
Optivise Advisory Services LLC110,100$24.8K0.01%00.0%Unchanged
Requisite Capital Management, LLC109,713$24.7K0.00%00.0%Unchanged
Wiley Bros.-Aintree Capital, LLC100,000$22.5K0.00%00.0%Unchanged
Cerity Partners LLC93,919$21.1K0.00%−32,000−25.4%Reduced
American Institute for Advanced Investment Management, LLP88,206$19.8K0.01%00.0%Unchanged
Saxon Interests, Inc.57,000$12.8K0.00%+15,786+38.3%Added
Bank of America Corp48,176$10.8K0.00%+10.0%Added
Northern Trust Corp47,674$10.7K0.00%00.0%Unchanged
RMR Wealth Builders38,360$8.63K0.00%00.0%Unchanged
XTX Topco Ltd37,919$8.53K0.00%+37,919New
Concurrent Investment Advisors, LLC35,283$7.93K0.00%00.0%Unchanged
DRW Securities, LLC33,348$7.50K0.00%+33,348New
Ethos Financial Group, LLC24,424$5.49K0.00%00.0%Unchanged
Raymond James Financial Inc18,642$4.19K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)18,109$4.07K0.00%+1,147+6.8%Added
Cetera Investment Advisers18,006$4.05K0.00%00.0%Unchanged
GWM Advisors LLC16,906$3.80K0.00%00.0%Unchanged
Qube Research & Technologies Ltd16,836$3.79K0.00%−13,130−43.8%Reduced
Flaharty Asset Management, LLC14,702$3.31K0.00%00.0%Unchanged
Cahaba Wealth Management, Inc.14,702$3.31K0.00%00.0%Unchanged
Point72 Asset Management, L.P.14,476$3.26K0.00%+14,476New
Skopos Labs, Inc.11,500$2.88K0.00%00.0%Unchanged
Goldman Sachs Group Inc10,468$2.35K0.00%00.0%Unchanged
Global Assets Advisory, LLC10,450$2.35K0.00%−250−2.3%Reduced
CWA Asset Management Group, LLC10,000$2.25K0.00%00.0%Unchanged
Advisor Group Holdings, Inc.6,000$1.32K0.00%−2,000−25.0%Reduced
Islay Capital Management, LLC3,391$7630.00%00.0%Unchanged
Grove Bank & Trust2,000$4500.00%00.0%Unchanged
Disciplined Equity Management, Inc.1,000$4180.00%+1,000New
BNP Paribas Arbitrage, SA1,306$2940.00%00.0%Unchanged
Allworth Financial LP261$590.00%00.0%Unchanged
Wells Fargo & Company200$450.00%00.0%Unchanged
Optiver Holding B.V.26$60.00%00.0%Unchanged
Deutsche Bank AG18$40.00%00.0%Unchanged
Royal Bank of Canada1,842$00.00%−168−8.4%Reduced
Barclays PLC1$00.00%00.0%Unchanged
Yorkville Advisors Global, LP0$00.00%−509,787−100.0%Sold out
Landscape Capital Management, L.L.C.0$00.00%−350,000−100.0%Sold out
GTS Securities LLC0$00.00%−308,661−100.0%Sold out
Citadel Advisors LLC0$00.00%−211,139−100.0%Sold out
HRT Financial LP0$00.00%−44,145−100.0%Sold out
LPL Financial LLC0$00.00%−17,570−100.0%Sold out
Runnymede Capital Advisors, Inc.0$00.00%−10,000−100.0%Sold out
FMR LLC0$00.00%−1,200−100.0%Sold out
EverSource Wealth Advisors, LLC0$00.00%−52−100.0%Sold out
Morgan Stanley0$00.00%−13−100.0%Sold out
True Wealth Design, LLC0$00.00%−10−100.0%Sold out
SRS Capital Advisors, Inc.0$00.00%−2−100.0%Sold out
IFP Advisors, Inc0$00.00%−2−100.0%Sold out
CWM, LLC0$00.00%−259−100.0%Sold out
Luminus Management LLC0$00.00%−26,629−100.0%Sold out