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Flexible Solutions Intl Inc (FSI)

CUSIP: 33938T104 | NYSE | Basic Materials · Specialty Chemicals | Micro Cap | 90 institutional holders

Quarters

Q3 2026Q2 2026Q1 2026Q4 2025Q3 2025
CompareDetailedHistoricalFundsOptionsShort Interest13D/13GPeersTargetingTrading SummaryProfile

Beneficial Ownership — 13D / 13G

Full history →

5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.

HolderShares% of ClassChangeEvent Datevs 13F
13D/ADaniel B. O'Brien4,595,15636.1%New 5%+ stakeJan 27, 2026No 13F filer matched
13D/ADaniel B. O'Brien4,595,156
36.1% of class · Jan 27, 2026New 5%+ stake
No 13F filer matched

Institutional Holders — Q3 2026

Dimensional Fund Advisors LP94,486
0.0% of portfolio›$567.9K
North Star Investment Management Corp.90,000
0.0% of portfolio›$540.9K
OpenArc Corporate Advisory, LLC45,400
0.0% of portfolio›$272.9K
Essex Investment Management Co LLC26,180
0.0% of portfolio›$157.3K
James Investment Research, Inc.18,300
0.0% of portfolio›$110.0K
Covestor Ltd6,162
0.1% of portfolio›$37.0K
Fortitude Family Office, LLC909
0.0% of portfolio›$5.5K
SBI Securities Co., Ltd.12
0.0% of portfolio›$72
StyleTurnoverLocationFiled
Dimensional Fund Advisors LP
94,486$567.9K0.0%IndexLowAustin, TX2026-11-04
North Star Investment Management Corp.
90,000$540.9K0.0%ValueLowChicago, IL2026-10-27
OpenArc Corporate Advisory, LLC
45,400$272.9K0.0%CoreLowAtlanta, GA2026-10-21
Essex Investment Management Co LLC
26,180$157.3K0.0%GrowthMediumBoston, MA2026-10-19
James Investment Research, Inc.
18,300$110.0K0.0%GARPLowAlpha, OH2026-10-22
Covestor Ltd
6,162$37.0K0.1%ValueHighLondon, United Kingdom2026-10-30
Fortitude Family Office, LLC
909$5.5K0.0%ETFMediumScottsdale, AZ2026-10-14
SBI Securities Co., Ltd.
12$720.0%GrowthLowTokyo, Mexico2026-10-22