FSI · AMEX · Chemicals - Specialty

Flexible Solutions International (FSI)

Makes polyaspartate polymers, specialty fertilizers, and confidential food ingredients.

$6.00
vs last close+0.05 (+0.84%)

13F · 13D/G · Form 4

Institutions9.07%1.16M shares
30 holders · as of Jun 30, 2026
Insiders35.98%4.60M shares
1 holder · as of Feb 11, 2026
Strategic holders35.68%4.56M shares
1 holder · as of Apr 27, 2022
Other19.27%2.46M shares
remainder

12.77M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing

13F · 13D/G · Form 4

HolderStakeSharesDate
Daniel B. O'BrienInsider
35.98%4.60Mfiled Feb 11, 2026
Lygos, Inc.Strategic
35.68%4.56Mfiled Apr 27, 2022
Comprehensive Financial Planning, Inc.Institution
9.85%1.26Mfiled Jan 24, 2025
Renaissance Technologies LLCInstitution
2.58%329,751as of Jun 30, 2026
Vanguard Capital Management LLCInstitution
2.21%282,117as of Jun 30, 2026
Dimensional Fund Advisors LPInstitution
0.75%96,116as of Jun 30, 2026
North Star Investment Management Corp.Institution
0.70%90,000as of Jun 30, 2026
Beartown Capital Management, LLCInstitution
0.59%74,754as of Jun 30, 2026
Regal Investment Advisors LLCInstitution
0.34%43,185as of Jun 30, 2026
Citadel Advisors LLCInstitution
0.33%41,514as of Jun 30, 2026
Sentinus, LLCInstitution
0.24%30,300as of Jun 30, 2026
Essex Investment Management Co LLCInstitution
0.20%26,180as of Jun 30, 2026
BlackRock, Inc.Institution
0.20%25,244as of Jun 30, 2026
James Investment Research IncInstitution
0.14%18,300as of Jun 30, 2026
Newedge Advisors, LLCInstitution
0.14%18,300as of Jun 30, 2026
Crestwood Advisors Group LLCInstitution
0.12%15,292as of Jun 30, 2026
Quantinno Capital Management LPInstitution
0.12%15,292as of Jun 30, 2026
Strait & Sound Wealth Management LLCInstitution
0.11%14,228as of Jun 30, 2026
XTX Topco LtdInstitution
0.09%11,225as of Jun 30, 2026
Vanguard Fiduciary Trust CoInstitution
0.05%6,714as of Jun 30, 2026
Covestor LtdInstitution
0.05%6,162as of Jun 30, 2026
Founders Capital ManagementInstitution
0.05%6,000as of Jun 30, 2026
Federation Des Caisses Desjardins du QuebecInstitution
0.02%2,525as of Jun 30, 2026
Morgan StanleyInstitution
0.01%1,344as of Jun 30, 2026
Wells Fargo & Company/MNInstitution
0.01%1,245as of Jun 30, 2026

13F, as of Jun 30, 2026

30 holders · 1.16M shares · 3 new positions · 9 increased · 9 reduced · 4 closed

HolderShares% outstandingChg q/qFiled
Renaissance Technologies LLC329.8K2.58%−11.2KAug 13, 2026
Vanguard Capital Management LLC282.1K2.21%+4.0KAug 13, 2026
Dimensional Fund Advisors LP96.1K0.75%+3.8KAug 11, 2026
North Star Investment Management Corp.90.0K0.70%0Jul 28, 2026
Beartown Capital Management, LLC74.8K0.59%0Aug 14, 2026
Regal Investment Advisors LLC43.2K0.34%0Aug 14, 2026
Citadel Advisors LLC41.5K0.33%+4.3KSep 2, 2026
Sentinus, LLC30.3K0.24%+11.6KAug 11, 2026

13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Daniel B. O'Brien36.10%4.60M13DFeb 11, 2026
Comprehensive Financial Planning, Inc.10.10%1.26M13GJan 24, 2025

Form 4

Latest trades

Nothing filed in the last 12 months.

House and Senate disclosures

Not reported.