Flexible Solutions IntlFSI
13F holders, Q4 2025 (December 31)At the end of Q4 2025, 30 institutions reported holding Flexible Solutions Intl Inc. (FSI) in their 13F filings, up 2 from Q3 2025. 6 opened new positions and 5 sold out. The largest holders were Renaissance Technologies ($2.2M), Vanguard Group Inc. ($1.9M) and Perritt Capital Management Inc ($728K). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Flexible Solutions Intl Inc.
- CUSIP
- 33938T104
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 6 | $1.3M |
| Exits | 5 | $268K |
All 13F filers, Q3 2025 → Q4 2025: 289,076 shares bought and 47,176 shares sold, net +241,900 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 30 holders
| Renaissance Technologies | 0.00% | Reduce -4.9% | 333,194 | $2.2M |
| Vanguard Group Inc. | 0.00% | No change | 284,869 | $1.9M |
| Perritt Capital Management Inc | 1.22% | Add +0.6% | 108,200 | $728K |
| Rothschild Wealth LLC | 0.07% | New | 108,200 | $728K |
| Dimensional Fund Advisors LP | 0.00% | Add +7.9% | 86,830 | $584K |
| Beartown Capital Management, LLC | 0.39% | — | 74,754 | $503K |
| Informed Momentum Co LLC | 0.05% | No change | 69,175 | $465K |
| Marshall Wace, LLP | 0.00% | Add +14.8% | 59,696 | $401K |
| O'shaughnessy Asset Management, LLC | 0.00% | Add +179.3% | 59,524 | $400K |
| Sei Investments Co. | 0.00% | New | 42,024 | $283K |
| Ritholtz Wealth Management | 0.01% | Add +270.3% | 41,882 | $282K |
| Regal Investment Advisors LLC | 0.01% | Add +22.8% | 34,960 | $235K |
| Citadel Advisors | 0.00% | New | 34,825 | $234K |
| Essex Investment Management Co. LLC | 0.03% | No change | 26,252 | $177K |
| James Investment Research, Inc. | 0.01% | No change | 18,300 | $123K |
| NewEdge Advisors, LLC | 0.00% | Reduce -0.1% | 18,300 | $123K |
| BlackRock, Inc. | 0.00% | Reduce -11.2% | 18,194 | $122K |
| Strait & Sound Wealth Management LLC | 0.03% | Add +15.8% | 11,728 | $79K |
| XTX Topco Ltd | 0.00% | New | 11,611 | $78K |
| Covestor Ltd | 0.02% | No change | 6,162 | $41K |
| Founders Capital Management | 0.02% | No change | 5,000 | $34K |
| Federation des caisses Desjardins du Quebec | 0.00% | No change | 2,525 | $17K |
| Wells Fargo & Company | 0.00% | No change | 1,245 | $8K |
| 1 North Wealth Services LLC | 0.00% | No change | 700 | $5K |
| UBS Group AG | 0.00% | Add +2431.6% | 481 | $3K |
| Tower Research Capital LLC (TRC) | 0.00% | New | 422 | $3K |
| Osaic Holdings, Inc. | 0.00% | No change | 400 | $3K |
| JPMorgan Chase & Co. | 0.00% | New | 18 | $121 |
| SBI Securities Co., Ltd. | 0.00% | No change | 12 | $81 |
| Citigroup Inc. | 0.00% | No change | 1 | $7 |
"% of holder's portfolio" is FSI's weight in each manager's 13F, not the share of Flexible Solutions Intl Inc. the manager owns.