Flexible Solutions International, Inc.
Flexible Solutions International, Inc. (FSI) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · FSI · as of Mar 31, 2025
Ownership Breakdown
22
Institutional Holders
▲ 5 vs Q4
$5.83M
Total Inst. Value
▲ $1.85M vs Q4
12.74M
Shares Outstanding
freeFloat 63.45%
1.15M
13F Shares Held
▲ 52,059 vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
FSI largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
RENAISSANCE TECHNOLOGIES LLC miscellaneous chemical products | 390.6K | 3.10% | 3.10% | $1.97B | May 14, 2025 | ▲ 1.2K |
VANGUARD GROUP INC miscellaneous chemical products | 277.2K | 2.20% | 2.20% | $1.40B | May 9, 2025 | — held |
PERRITT CAPITAL MANAGEMENT INC miscellaneous chemical products | 110.0K | 87.39% | 87.39% | $555.50M | May 13, 2025 | ▼ 7.9K |
BRIDGEWAY CAPITAL MANAGEMENT, LLC miscellaneous chemical products | 81.6K | 64.83% | 64.83% | $412.12M | May 15, 2025 | ▼ 16.4K |
DIMENSIONAL FUND ADVISORS LP miscellaneous chemical products | 71.0K | 56.39% | 56.39% | $358.45M | May 13, 2025 | ▲ 18.5K |
EVERNEST FINANCIAL ADVISORS, LLC miscellaneous chemical products | 61.4K | 48.78% | 48.78% | $310.07M | May 12, 2025 | NEW |
CITADEL ADVISORS LLC miscellaneous chemical products | 31.8K | 25.28% | 25.28% | $160.72M | May 15, 2025 | ▲ 8.6K |
REGAL INVESTMENT ADVISORS LLC miscellaneous chemical products | 28.5K | 22.61% | 22.61% | $143.72M | May 12, 2025 | — held |
ESSEX INVESTMENT MANAGEMENT CO LLC miscellaneous chemical products | 26.6K | 21.10% | 21.10% | $134.13M | May 7, 2025 | NEW |
NEWEDGE ADVISORS, LLC miscellaneous chemical products | 18.3K | 14.55% | 14.55% | $92.49M | May 15, 2025 | ▼ 3.1K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
3
Increased
+28.3K shares8
New Positions
first time holders6
Decreased
−54.2K shares3
Sold Out
fully exitedNet shares change (top 50)
25.9K
+28.3K / −54.2K
Net new holders
+2
8 new / 3 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
FSI insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
0
Buy transactions
3
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Helina Robert Thomas director | Jan 19, 2026 | Award | 10,000 | $6.14 | $61.4K | 10.0K | Form 4 ↗ |
O BRIEN DANIEL B Chief Executive Officer | Feb 3, 2026 | Sale | 16,497 | $5.78 | $95.4K | 4.60M | Form 4 ↗ |
O BRIEN DANIEL B Chief Executive Officer | Feb 3, 2026 | Sale | 12,500 | $5.88 | $73.5K | 4.60M | Form 4 ↗ |
O BRIEN DANIEL B Chief Executive Officer | Jan 27, 2026 | Sale | 56,000 | $5.90 | $330.4K | 4.66M | Form 4 ↗ |
O BRIEN DANIEL B Chief Executive Officer | Jan 28, 2026 | Sale | 45,500 | $5.84 | $265.7K | 4.62M | Form 4 ↗ |
O BRIEN DANIEL B Chief Executive Officer | Nov 16, 2023 | Sale | 94,563 | $1.57 | $148.5K | 4.27M | Form 4 ↗ |
O BRIEN DANIEL B Chief Executive Officer | Jul 21, 2023 | Sale | 9,312 | $2.64 | $24.6K | 4.36M | Form 4 ↗ |
O BRIEN DANIEL B Chief Executive Officer | Jul 19, 2023 | Sale | 17,647 | $2.65 | $46.8K | 4.39M | Form 4 ↗ |
O BRIEN DANIEL B Chief Executive Officer | Jul 20, 2023 | Sale | 20,100 | $2.65 | $53.2K | 4.37M | Form 4 ↗ |
O BRIEN DANIEL B Chief Executive Officer | Jun 21, 2023 | Sale | 4,114 | $2.80 | $11.5K | 4.42M | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Flexible Solutions International, Inc. (FSI) is primarily owned by institutional investors, who hold approximately 9.1% of total shares outstanding. Company insiders own approximately 36.55%, while retail and public investors account for the remaining 54.39%.
The largest institutional shareholder of Flexible Solutions International, Inc. is RENAISSANCE TECHNOLOGIES LLC, holding approximately 390,645 shares — equal to 3.10% of outstanding shares — as of March 31, 2025.
A total of 22 institutional investors currently hold FSI stock, with a combined institutional value of approximately $5,830,452 as of the most recent 13F filing period.
Frequently asked questions
FSI ownershipFlexible Solutions International, Inc. (FSI) is primarily owned by institutional investors, who hold approximately 9.1% of shares. The largest shareholder is RENAISSANCE TECHNOLOGIES LLC with a 3.10% stake. Company insiders hold 36.55%. Data sourced from SEC Form 13F as of March 31, 2025.