Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in FCEL held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 3.0M | $19.7M | +8.6% | 5.688% | 0.00% |
| 2 | Legal & General Group Plc | 2.9M | $18.7M | -0.9% | 5.409% | 0.00% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 2.2M | $14.2M | — | 4.118% | 0.00% |
| 4 | CITADEL ADVISORS LLC | 1.8M | $11.5M | +51.7% | 3.320% | 0.01% |
| 5 | TWO SIGMA INVESTMENTS, LP | 1.3M | $8.4M | +27.5% | 2.418% | 0.01% |
| 6 | Invesco Ltd. | 1.2M | $7.9M | -19.2% | 2.295% | 0.00% |
| 7 | BlackRock, Inc. | 1.0M | $6.8M | +8.7% | 1.955% | 0.00% |
| 8 | CenterBook Partners LP | 986K | $6.4M | -22.9% | 1.861% | 0.35% |
| 9 | RENAISSANCE TECHNOLOGIES LLC | 887K | $5.8M | -27.3% | 1.673% | 0.01% |
| 10 | MILLENNIUM MANAGEMENT LLC | 752K | $4.9M | +135.3% | 1.420% | 0.00% |
| 11 | UBS Group AG | 601K | $3.9M | +309.0% | 1.134% | 0.00% |
| 12 | Qube Research & Technologies Ltd | 598K | $3.9M | +5341.4% | 1.129% | 0.00% |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 582K | $3.8M | -1.8% | 1.098% | 0.00% |
| 14 | Trexquant Investment LP | 519K | $3.4M | -42.0% | 0.980% | 0.03% |
| 15 | BANK OF MONTREAL /CAN/ | 459K | $3.0M | — | 0.867% | 0.00% |
| 16 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 431K | $2.8M | +6.0% | 0.813% | 0.00% |
| 17 | MARSHALL WACE, LLP | 387K | $2.5M | +478.9% | 0.731% | 0.00% |
| 18 | FEDERATED HERMES, INC. | 344K | $2.2M | -21.1% | 0.649% | 0.00% |
| 19 | MORGAN STANLEY | 343K | $2.2M | +8.7% | 0.647% | 0.00% |
| 20 | DIMENSIONAL FUND ADVISORS LP | 313K | $2.0M | +459.1% | 0.590% | 0.00% |
| 21 | VANGUARD FIDUCIARY TRUST CO | 284K | $1.9M | — | 0.537% | 0.00% |
| 22 | GOLDMAN SACHS GROUP INC | 255K | $1.7M | +50.5% | 0.481% | 0.00% |
| 23 | Jump Financial, LLC | 240K | $1.6M | +163.9% | 0.452% | 0.02% |
| 24 | Point72 Asset Management, L.P. | 234K | $1.5M | +67.2% | 0.442% | 0.00% |
| 25 | STATE STREET CORP | 234K | $1.5M | -5.6% | 0.441% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in FCEL — a direct measure of their conviction.
Filings activity in FCEL during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 139 | +3.7% | 18.61% | 5.69 pp | $167M | 23% |
| Q4 2025 | 134 | +20% | 24.30% | +13.16 pp | $218M | +118% |
| Q3 2025 | 112 | +11% | 11.14% | +7.42 pp | $100M | +199% |
| Q2 2025 | 101 | 1.0% | 3.72% | 0.87 pp | $33M | 19% |
| Q1 2025 | 102 | 1.9% | 4.59% | 4.98 pp | $41M | 52% |
| Q4 2024 | 104 | +3367% | 9.57% | +9.57 pp | $86M | +8996847% |
| Q3 2024 | 3 | +200% | 0.00% | +0.00 pp | $0M | — |
| Q2 2021 | 1 | — | 0.00% | — | $0M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying FCEL stock.
Based on Q1 2026 13F filings, institutional ownership of FuelCell Energy, Inc. stands at 18.6%, held across 139 reporting institutions.
SUSQUEHANNA INTERNATIONAL GROUP, LLP is the largest reported institutional holder of FCEL, with approximately 3,013,668 shares worth $0.02B as of Q1 2026.
Yes — 6 widely-followed marquee investors appear among the top 25 institutional holders of FCEL, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, CITADEL ADVISORS LLC, TWO SIGMA INVESTMENTS, LP, RENAISSANCE TECHNOLOGIES LLC, MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for FCEL is 58 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
30 institutions opened new positions in FCEL during Q1 2026, while 25 fully exited. 31 added to existing positions and 74 trimmed.
FCEL institutional ownership fell by 5.69 percentage points quarter-over-quarter, with a net change of +5 holders.
The top 10 institutions account for 62.5% of all reported 13F value in FCEL, and the top 25 account for 85.2%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
FuelCell Energy, Inc. (FCEL) Institutional Ownership