Who owns FuelCell Energy (FCELB)
Which tracked institutional funds hold FCELB, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See FCELB company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on FCELB is one-sided between 2026-Q1 and 2026-Q2: 107 added or opened and 13 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
FCELB’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes FCELB more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in FCELB divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 214 tracked filers holding FCELB, 152 increased or opened the position and 66 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in FCELB between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 49
- Encompass Capital Advisors LLC$49M
- Anatole Investment Management Ltd$42M
- Driehaus Capital Management LLC$37M
- Baird Financial Group, Inc.$31M
- JANE STREET GROUP, LLC$31M
- TUDOR INVESTMENT CORP ET AL$14M
Full exits 8
- ACADIAN ASSET MANAGEMENT LLC$4M
- MARSHALL WACE, LLP$3M
- Connor, Clark & Lunn Investment Management Ltd.$1M
- MIRABELLA FINANCIAL SERVICES LLP$1M
- Squarepoint Ops LLC$805K
- GSA CAPITAL PARTNERS LLP$785K
Largest adds
- BlackRock, Inc.$148M
- STATE STREET CORP$76M
- VANGUARD CAPITAL MANAGEMENT LLC$70M
- Legal & General Group Plc$68M
- TWO SIGMA INVESTMENTS, LP$66M
- GEODE CAPITAL MANAGEMENT, LLC$47M
Largest trims
- CenterBook Partners LP$3M
- Qube Research & Technologies Ltd$996K
- Jump Financial, LLC$690K
- BNP PARIBAS FINANCIAL MARKETS$454K
- Engineers Gate Manager LP$279K
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 4,311,575 | $155M | 11.3% | 2026-Q2 |
| Legal & General Group Plc trimmed | 2,419,645 | $87M | 6.3% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 2,332,924 | $84M | 6.1% | 2026-Q2 |
| STATE STREET CORP added | 2,143,908 | $77M | 5.6% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 2,061,353 | $74M | 5.4% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,408,580 | $51M | 3.7% | 2026-Q2 |
| Encompass Capital Advisors LLC new | 1,365,900 | $49M | 3.6% | 2026-Q2 |
| UBS Group AG added | 1,274,341 | $46M | 3.3% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 1,272,500 | $46M | 3.3% | 2026-Q2 |
| Anatole Investment Management Ltd new | 1,165,501 | $42M | 3.1% | 2026-Q2 |
| Driehaus Capital Management LLC new | 1,014,687 | $37M | 2.7% | 2026-Q2 |
| Invesco Ltd. trimmed | 982,042 | $35M | 2.6% | 2026-Q2 |
| Baird Financial Group, Inc. new | 866,244 | $31M | 2.3% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 859,595 | $31M | 2.3% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 852,881 | $31M | 2.2% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 746,879 | $27M | 2.0% | 2026-Q2 |
| Trexquant Investment LP added | 739,400 | $27M | 1.9% | 2026-Q2 |
| GROUP ONE TRADING LLC added | 696,353 | $25M | 1.8% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 643,838 | $23M | 1.7% | 2026-Q2 |
| Point72 Asset Management, L.P. added | 621,095 | $22M | 1.6% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 505,082 | $18M | 1.3% | 2026-Q2 |
| BANK OF MONTREAL /CAN/ added | 460,538 | $17M | 1.2% | 2026-Q2 |
| MORGAN STANLEY added | 450,750 | $16M | 1.2% | 2026-Q2 |
| NORTHERN TRUST CORP added | 430,826 | $16M | 1.1% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 395,874 | $14M | 1.0% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL new | 391,831 | $14M | 1.0% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 377,836 | $13M | 1.0% | 2026-Q2 |
| FMR LLC added | 370,614 | $13M | 1.0% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 357,106 | $11M | 0.8% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 348,899 | $13M | 0.9% | 2026-Q2 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ new | 327,068 | $12M | 0.9% | 2026-Q2 |
| PANAGORA ASSET MANAGEMENT INC added | 319,232 | $11M | 0.8% | 2026-Q2 |
| FEDERATED HERMES, INC. trimmed | 309,368 | $11M | 0.8% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC added | 286,275 | $10M | 0.8% | 2026-Q2 |
| Walleye Trading LLC added | 252,693 | $9M | 0.7% | 2026-Q2 |
| Tidal Investments LLC added | 244,049 | $9M | 0.6% | 2026-Q2 |
| Nuveen, LLC added | 220,251 | $8M | 0.6% | 2026-Q2 |
| Defiance ETFs, LLC added | 206,279 | $7M | 0.5% | 2026-Q2 |
| Zurcher Kantonalbank (Zurich Cantonalbank) added | 190,508 | $7M | 0.5% | 2026-Q2 |
| Mitsubishi UFJ Asset Management Co., Ltd. new | 180,023 | $6M | 0.5% | 2026-Q2 |
| Informed Momentum Co LLC new | 178,858 | $6M | 0.5% | 2026-Q2 |
| Bank of New York Mellon Corp added | 169,233 | $6M | 0.4% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 160,776 | $6M | 0.4% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 142,135 | $5M | 0.4% | 2026-Q2 |
| Lighthouse Investment Partners, LLC added | 141,800 | $5M | 0.4% | 2026-Q2 |
| SIMPLEX TRADING, LLC added | 138,054 | $5M | 0.4% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC new | 131,537 | $5M | 0.3% | 2026-Q2 |
| ARDSLEY ADVISORY PARTNERS LP added | 120,000 | $4M | 0.3% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 119,307 | $4M | 0.3% | 2026-Q2 |
| CenterBook Partners LP trimmed | 107,687 | $4M | 0.3% | 2026-Q2 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. new | 105,377 | $4M | 0.3% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 98,480 | $4M | 0.3% | 2026-Q2 |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC | 94,736 | $3M | 0.2% | 2026-Q2 |
| XTX Topco Ltd added | 88,187 | $3M | 0.2% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 86,859 | $3M | 0.2% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 85,795 | $3M | 0.2% | 2026-Q2 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC new | 84,982 | $3M | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 84,127 | $3M | 0.2% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 81,829 | $3M | 0.2% | 2026-Q2 |
| Qube Research & Technologies Ltd trimmed | 80,760 | $3M | 0.2% | 2026-Q2 |
| REX Advisers, LLC new | 75,900 | $3M | 0.2% | 2026-Q2 |
| LPL Financial LLC added | 75,573 | $3M | 0.2% | 2026-Q2 |
| DEUTSCHE BANK AG\ trimmed | 73,805 | $3M | 0.2% | 2026-Q2 |
| Brevan Howard Capital Management LP trimmed | 68,189 | $2M | 0.2% | 2026-Q2 |
| Quinn Opportunity Partners LLC new | 67,000 | $2M | 0.2% | 2026-Q2 |
| Scientech Research LLC added | 59,756 | $2M | 0.2% | 2026-Q2 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 57,000 | $2M | 0.1% | 2026-Q2 |
| Caitong International Asset Management Co., Ltd added | 53,490 | $2M | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 51,971 | $2M | 0.1% | 2026-Q2 |
| Alight Capital Management LP new | 50,000 | $2M | 0.1% | 2026-Q2 |
| CITIGROUP INC trimmed | 46,296 | $2M | 0.1% | 2026-Q2 |
| SEI INVESTMENTS CO trimmed | 45,059 | $2M | 0.1% | 2026-Q2 |
| COMMONWEALTH EQUITY SERVICES, LLC trimmed | 44,434 | $2M | 0.1% | 2026-Q2 |
| ALGERT GLOBAL LLC added | 42,890 | $2M | 0.1% | 2026-Q2 |
| Walleye Capital LLC trimmed | 42,462 | $2M | 0.1% | 2026-Q2 |
| Caption Management, LLC new | 42,000 | $2M | 0.1% | 2026-Q2 |
| D. E. Shaw & Co., Inc. new | 38,127 | $1M | 0.1% | 2026-Q2 |
| BARCLAYS PLC trimmed | 34,629 | $1M | 0.1% | 2026-Q2 |
| KINGSWOOD WEALTH ADVISORS, LLC new | 33,932 | $1M | 0.1% | 2026-Q2 |
| Entropy Technologies, LP trimmed | 32,469 | $1M | 0.1% | 2026-Q2 |
| MetLife Investment Management, LLC added | 31,816 | $1M | 0.1% | 2026-Q2 |
| ExodusPoint Capital Management, LP trimmed | 30,757 | $1M | 0.1% | 2026-Q2 |
| Susquehanna Portfolio Strategies, LLC trimmed | 29,814 | $1M | 0.1% | 2026-Q2 |
| CANADA PENSION PLAN INVESTMENT BOARD trimmed | 28,600 | $1M | 0.1% | 2026-Q2 |
| Cinctive Capital Management LP new | 28,258 | $1M | 0.1% | 2026-Q2 |
| Aventail Capital Group, LP new | 25,492 | $918K | 0.1% | 2026-Q2 |
| Jump Financial, LLC trimmed | 24,300 | $875K | 0.1% | 2026-Q2 |
| Centiva Capital, LP trimmed | 24,070 | $867K | 0.1% | 2026-Q2 |
| OSAIC HOLDINGS, INC. added | 23,971 | $863K | 0.1% | 2026-Q2 |
| Maven Securities LTD new | 23,249 | $837K | 0.1% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC trimmed | 22,828 | $822K | 0.1% | 2026-Q2 |
| Kingsview Wealth Management, LLC new | 21,681 | $781K | 0.1% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 21,223 | $764K | 0.1% | 2026-Q2 |
| Headlands Technologies LLC new | 20,380 | $734K | 0.1% | 2026-Q2 |
| Vanguard Global Advisers, LLC added | 20,247 | $729K | 0.1% | 2026-Q2 |
| ProShare Advisors LLC trimmed | 20,140 | $725K | 0.1% | 2026-Q2 |
| MinichMacGregor Wealth Management, LLC added | 20,013 | $721K | 0.1% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 19,100 | $711K | 0.1% | 2026-Q2 |
| Inspire Investing, LLC new | 18,604 | $670K | 0.0% | 2026-Q2 |
| Marex Group Ltd trimmed | 18,021 | $649K | 0.0% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.