# FUEL TECH INC COM COM

FUEL TECH INC COM COM is a security (CUSIP 359523107) tracked across SEC portfolio filings. 49 institutional managers reported $12.9M on Form 13F as of 2026-06-30; 3 registered fund positions totaling $664K via N-PORT as of 2026-05-31.

## Summary

- Issuer: FUEL TECH INC COM
- Class: COM
- CUSIP: 359523107
- Asset category: EC
- 13F holders: 49
- 13F value: $12.9M
- 13F period: 2026-06-30
- N-PORT fund positions: 3
- N-PORT value: $664K
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 49 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [GRACE & WHITE INC /NY](https://search.stillhousedata.com/firm/110761) | NY, NY | $3.4M | 1,541,307 |
| [Peapod Lane Capital LLC](https://search.stillhousedata.com/firm/159963) | Bedford Hills, NY | $1.8M | 820,592 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $1.8M | 1,126,003 |
| [RENAISSANCE TECHNOLOGIES LLC](https://search.stillhousedata.com/firm/106661) | NEW YORK, NY | $1.7M | 1,407,806 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $650K | 532,808 |
| BlackRock, Inc. | New York, NY | $501K | 410,364 |
| US BANCORP \\DE\\ | MINNEAPOLIS, MN | $372K | 304,776 |
| [TWO SIGMA INVESTMENTS, LP](https://search.stillhousedata.com/firm/137137) | New York, NY | $290K | 238,079 |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $270K | 221,399 |
| Marquette Asset Management, LLC | MINNEAPOLIS, MN | $244K | 110,509 |
| WOLVERINE TRADING, LLC | CHICAGO, IL | $218K | — |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $207K | 140,092 |
| [THOMPSON DAVIS & CO., INC.](https://search.stillhousedata.com/firm/41353) | RICHMOND, VA | $190K | 85,800 |
| [Beartown Capital Management, LLC](https://search.stillhousedata.com/firm/289341) | HUNTINGTON WOODS, MI | $179K | 146,689 |
| [ESSEX INVESTMENT MANAGEMENT CO LLC](https://search.stillhousedata.com/firm/109962) | BOSTON, MA | $171K | 77,159 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [Fidelity Nasdaq Composite Index ETF](https://search.stillhousedata.com/fund/S000006011) | Fidelity Commonwealth Trust | $350K | 0.32% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $313K | 0.04% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $1K | 0.00% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/359523107.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.