Fuel Tech, Inc. (FTEK) Ownership
FTEK ownership summary
as of October 18, 2026- Institutions
- 23.7% of shares outstanding
- Insiders
- 23.32% of shares outstanding
- Shares outstanding
- 31.2M
- Float
- 23.7M shares available to trade
- Short interest
- 0.73% 207K shares short
- Days to cover
- 0.92 short interest down 42.9% vs prior month
- Institutions 23.70%
- Insiders 23.32%
- Other investors 52.98%
FTEK top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Grace & White Inc | 4.94% | 1.5M | $2.2M | — | June 30, 2026 |
| 2 | Renaissance Technologies Corp | 3.53% | 1.1M | $1.5M | −305,400 (−21.7%) | June 30, 2026 |
| 3 | Vanguard Capital Management, LLC | 3.22% | 1.0M | $1.4M | +17,703 (+1.8%) | June 30, 2026 |
| 4 | Peapod Lane Capital LLC | 2.63% | 821K | $1.1M | +341,750 (+71.4%) | June 30, 2026 |
| 5 | Geode Capital Management, LLC | 1.68% | 523K | $732,176 | −9,825 (−1.8%) | June 30, 2026 |
| 6 | BlackRock Inc | 1.59% | 496K | $695,090 | +86,129 (+21.0%) | June 30, 2026 |
| 7 | U.S. Bancorp | 0.98% | 305K | $426,686 | — | June 30, 2026 |
| 8 | GSA Capital Partners LLP | 0.95% | 295K | $413,197 | +48,889 (+19.9%) | June 30, 2026 |
| 9 | Two Sigma Investments LLC | 0.54% | 168K | $235,840 | −69,622 (−29.2%) | June 30, 2026 |
| 10 | Beartown Capital Management, LLC | 0.47% | 147K | $205,365 | — | June 30, 2026 |
| 11 | Vanguard Fiduciary Trust Co | 0.43% | 133K | $186,843 | +954 (+0.7%) | June 30, 2026 |
| 12 | State Street Corp | 0.39% | 122K | $170,584 | — | June 30, 2026 |
| 13 | Marquette Asset Management Inc. | 0.35% | 111K | $154,713 | +110,509 (0.0%) | June 30, 2026 |
| 14 | Jane Street Group LLC | 0.35% | 109K | $153,276 | +38,686 (+54.6%) | June 30, 2026 |
| 15 | Thompson Davis & Co Inc | 0.27% | 86K | $120,120 | +85,800 (0.0%) | June 30, 2026 |
| 16 | Essex Investment Management Company, LLC | 0.25% | 77K | $108,023 | −91 (−0.1%) | June 30, 2026 |
| 17 | Northern Trust Corp | 0.19% | 60K | $84,466 | +28,898 (+91.9%) | June 30, 2026 |
| 18 | Sentinus, LLC | 0.13% | 40K | $56,000 | +40,000 (0.0%) | June 30, 2026 |
| 19 | Susquehanna International Group, LLP | 0.12% | 36K | $50,254 | −104,196 (−74.4%) | June 30, 2026 |
| 20 | LexAurum Advisors, LLC | 0.06% | 20K | $28,224 | +6,000 (+42.4%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 11 holders added 805K shares and 5 cut 489K.
FTEK top mutual fund and ETF holders
14 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 2.34% | 732K | $1.0M | — | August 31, 2026 |
| 2 | Fidelity Nasdaq Composite ETF | 0.76% | 238K | $332,829 | — | September 30, 2026 |
| 3 | Fidelity Extended Market Index | 0.40% | 124K | $173,621 | −666 (−0.5%) | August 31, 2026 |
| 4 | iShares Micro-Cap ETF | 0.25% | 77K | $107,895 | −532 (−0.7%) | September 30, 2026 |
| 5 | Fidelity Total Market Index | 0.22% | 69K | $95,921 | — | August 31, 2026 |
| 6 | Fidelity Series Total Market Index | 0.11% | 33K | $46,490 | — | August 31, 2026 |
| 7 | Vanguard Balanced Index Inv | 0.06% | 19K | $26,120 | — | August 31, 2026 |
| 8 | Fidelity Nasdaq Composite Index | 0.02% | 6,633 | $9,286 | — | August 31, 2026 |
| 9 | Vanguard U.S. Eq Idx £ Acc | 0.02% | 5,500 | $7,700 | — | August 31, 2026 |
| 10 | 1290 VT Micro Cap K | 0.02% | 5,343 | $7,480 | — | August 31, 2026 |
| 11 | Dimensional International Core Eq Acc | 0.01% | 4,099 | $5,739 | — | August 31, 2026 |
| 12 | Dimensional World Allc 60/40 GBP Acc | 0.01% | 3,833 | $5,366 | — | August 31, 2026 |
| 13 | Dimensional Global Core Equity USD Acc | 0.01% | 3,659 | $5,123 | — | August 31, 2026 |
| 14 | Dimensional World Equity GBP Acc | 0.01% | 1,837 | $2,572 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
FTEK insider transactions
latest 1| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-06 | Vincent J Arnone | Buy | $1.24 | 10,000 | $12,400 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
FTEK shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns FTEK
Institutional investors own 23.7% of Fuel Tech's shares and insiders 23.32%. The largest holder is Grace & White Inc with 4.94% of the shares (1.5M), as of June 30, 2026. Among the top 20 institutions, 11 added shares and 5 reduced their stake in the latest filings. Short interest is 0.73% of the float, or 0.92 days of average trading volume. The share count rose 36.1% since 2014.
Related: FTEK analyst forecast, FTEK key metrics. See the FTEK stock overview for the latest quote and news.
FTEK ownership FAQ
Who owns the most Fuel Tech stock?
The largest shareholders of Fuel Tech are Grace & White Inc (4.94%), Renaissance Technologies Corp (3.53%), Vanguard Capital Management, LLC (3.22%), Peapod Lane Capital LLC (2.63%), Geode Capital Management, LLC (1.68%).
What percentage of Fuel Tech is owned by institutions?
Institutions hold 23.7% of Fuel Tech's shares outstanding; insiders hold 23.32%.
Which funds own Fuel Tech?
The largest fund holders of Fuel Tech are Vanguard MStar Total Stk Mkt Idx Invest (2.34%), Fidelity Nasdaq Composite ETF (0.76%), Fidelity Extended Market Index (0.40%), iShares Micro-Cap ETF (0.25%), Fidelity Total Market Index (0.22%).
What is Fuel Tech's short interest?
207K shares of Fuel Tech were sold short, 0.73% of the float; at the average daily volume it would take 0.92 days to cover.
Are insiders buying or selling Fuel Tech?
Of the latest 1 reported insider transactions in Fuel Tech (since March 6, 2026), 1 were purchases and 0 were sales.
How many shares of Fuel Tech are outstanding?
Fuel Tech has 31.2M shares outstanding, of which 23.7M are in the public float.