Fuel Tech, Inc.
Fuel Tech, Inc. (FTEK) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · FTEK · as of Sep 30, 2025
Ownership Breakdown
52
Institutional Holders
▲ 14 vs Q2
$21.44M
Total Inst. Value
▲ $5.97M vs Q2
31.17M
Shares Outstanding
freeFloat 76.13%
7.15M
13F Shares Held
▲ 1.01M vs Q2
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
FTEK largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
GRACE & WHITE INC /NY industrial & commercial fans & blowers & air purifing equip | 1.49M | 4.83% | 4.83% | $4.48B | Oct 23, 2025 | ▼ 142.8K |
VANGUARD GROUP INC industrial & commercial fans & blowers & air purifing equip | 1.01M | 3.28% | 3.28% | $3.04B | Nov 7, 2025 | ▲ 72.9K |
RENAISSANCE TECHNOLOGIES LLC industrial & commercial fans & blowers & air purifing equip | 898.9K | 2.91% | 2.91% | $2.70B | Nov 13, 2025 | ▲ 46.5K |
GEODE CAPITAL MANAGEMENT, LLC industrial & commercial fans & blowers & air purifing equip | 523.8K | 1.70% | 1.70% | $1.57B | Nov 12, 2025 | ▲ 6.2K |
BLACKROCK, INC. industrial & commercial fans & blowers & air purifing equip | 410.4K | 1.33% | 1.33% | $1.23B | Nov 12, 2025 | ▼ 654 |
PEAPOD LANE CAPITAL LLC industrial & commercial fans & blowers & air purifing equip | 356.9K | 1.16% | 1.16% | $1.07B | Nov 10, 2025 | ▼ 310.6K |
EAM INVESTORS, LLC industrial & commercial fans & blowers & air purifing equip | 338.7K | 1.10% | 1.10% | $1.02B | Nov 14, 2025 | ▲ 54.8K |
US BANCORP \DE\ industrial & commercial fans & blowers & air purifing equip | 304.8K | 98.74% | 98.74% | $914.33M | Nov 12, 2025 | — held |
MERCURIA CAPITAL STRATEGIES, LLC industrial & commercial fans & blowers & air purifing equip | 240.0K | 77.75% | 77.75% | $720.00M | Nov 13, 2025 | NEW |
JANE STREET GROUP, LLC industrial & commercial fans & blowers & air purifing equip | 236.9K | 76.75% | 76.75% | $710.77M | Nov 14, 2025 | NEW |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
18
Increased
+747.9K shares13
New Positions
first time holders8
Decreased
−476.4K shares0
Sold Out
fully exitedNet shares change (top 50)
+271.5K
+747.9K / −476.4K
Net new holders
+23
13 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
FTEK insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
3
Buy transactions
0
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 |
|---|---|---|---|---|---|---|---|
BAILEY DOUGLAS G director | Jun 4, 2026 | Award | 15,000 | — | — | 15.0K | Form 4 ↗ |
Jones Sharon L director | Jun 4, 2026 | Award | 15,000 | — | — | 15.0K | Form 4 ↗ |
ZEITLER DENNIS L director | Jun 4, 2026 | Award | 15,000 | — | — | 15.0K | Form 4 ↗ |
Albrecht Ellen T Chief Financial Officer | Mar 24, 2026 | Award | 8,350 | — | — | 8.3K | Form 4 ↗ |
ARNONE VINCENT J President & CEO | Mar 24, 2026 | Award | 20,850 | — | — | 20.9K | Form 4 ↗ |
Cummings William E JR Senior Vice President, Sales | Mar 24, 2026 | Award | 6,250 | — | — | 6.3K | Form 4 ↗ |
ARNONE VINCENT J President & CEO | Mar 6, 2026 | Purchase | 10,000 | $1.24 | $12.4K | 549.5K | Form 4 ↗ |
BAILEY DOUGLAS G director | Jun 4, 2025 | Award | 15,000 | — | — | 15.0K | Form 4 ↗ |
Jones Sharon L director | Jun 4, 2025 | Sale | 12,627 | $1.67 | $21.0K | 84.0K | Form 4 ↗ |
Jones Sharon L director | Jun 4, 2025 | Award | 15,000 | — | — | 15.0K | 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
Fuel Tech, Inc. (FTEK) is primarily owned by institutional investors, who hold approximately 22.9% of total shares outstanding. Company insiders own approximately 23.87%, while retail and public investors account for the remaining 53.20%.
The largest institutional shareholder of Fuel Tech, Inc. is GRACE & WHITE INC /NY, holding approximately 1.49 million shares — equal to 4.83% of outstanding shares — as of September 30, 2025.
A total of 52 institutional investors currently hold FTEK stock, with a combined institutional value of approximately $21,436,903 as of the most recent 13F filing period.
Frequently asked questions
FTEK ownershipFuel Tech, Inc. (FTEK) is primarily owned by institutional investors, who hold approximately 22.9% of shares. The largest shareholder is GRACE & WHITE INC /NY with a 4.83% stake. Company insiders hold 23.87%. Data sourced from SEC Form 13F as of September 30, 2025.