Company · Ownership research

FUELCELL ENERGY INC FCEL

CIK 0000886128 · CUSIP 35952H700

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 35952H700 (FCEL), not CUSIP 35952H900 (FCEL), CUSIP 35952H950 (FCEL), CUSIP 35952H601 (FCEL), CUSIP SBK6S6J81 (FCEL), CUSIP 35952H106 (FCEL), and does not merge CUSIPs.

This page lists the top 20 of 144 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	Legal & General Group Plc CIK 764068 · View history	$18.71M 2,865,746 shares	0.00%	-27.44K(-0.90%)Reduced	SEC filing ↗ May 8, 2026	▾
02	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history	$14.25M 2,181,764 shares	0.00%	—	SEC filing ↗ May 15, 2026	▾
03	SUSQUEHANNA INTERNATIONAL GROUP, LLP CIK 1446194 · View history	$11.23M 1,720,168 shares	0.01%	+485.87K(+39.40%)Added	SEC filing ↗ May 15, 2026	▾
04	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$8.37M 1,281,216 shares	0.01%	+276.27K(+27.50%)Added	SEC filing ↗ May 15, 2026	▾
05	Invesco Ltd. CIK 914208 · Amended · View history	$7.94M 1,215,772 shares	0.00%	-289.66K(-19.20%)Reduced	SEC filing ↗ May 12, 2026	▾
06	BlackRock, Inc. CIK 2012383 · View history	$6.76M 1,035,735 shares	0.00%	+82.99K(+8.70%)Added	SEC filing ↗ May 13, 2026	▾
07	CenterBook Partners LP CIK 1872738 · View history	$6.44M 986,037 shares	0.35%	-292.71K(-22.90%)Reduced	SEC filing ↗ May 5, 2026	▾
08	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$5.79M 886,600 shares	0.01%	-333.00K(-27.30%)Reduced	SEC filing ↗ May 14, 2026	▾
09	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$4.91M 752,487 shares	0.00%	+432.72K(+135.30%)Added	SEC filing ↗ May 15, 2026	▾
10	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$4.17M 640,301 shares	0.01%	+565.00K(+750.40%)Added	SEC filing ↗ May 13, 2026	▾
11	JPMORGAN CHASE & CO CIK 19617 · Amended · View history	$4.01M 643,303 shares	0.00%	+358.89K(+126.20%)Added	SEC filing ↗ May 13, 2026	▾
12	UBS Group AG CIK 1610520 · View history	$3.92M 600,665 shares	0.00%	+453.81K(+309.00%)Added	SEC filing ↗ May 5, 2026	▾
13	Qube Research & Technologies Ltd CIK 1729829 · View history	$3.90M 597,848 shares	0.01%	+586.86K(+5,341.40%)Added	SEC filing ↗ May 15, 2026	▾
14	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$3.80M 581,696 shares	0.00%	-10.69K(-1.80%)Reduced	SEC filing ↗ May 15, 2026	▾
15	CITADEL ADVISORS LLC CIK 1423053 · View history	$3.72M 570,289 shares	0.00%	+366.32K(+179.60%)Added	SEC filing ↗ May 15, 2026	▾
16	Trexquant Investment LP CIK 1633445 · View history	$3.39M 519,331 shares	0.02%	-375.47K(-42.00%)Reduced	SEC filing ↗ May 15, 2026	▾
17	BANK OF MONTREAL /CAN/ CIK 927971 · View history	$3.00M 459,299 shares	0.00%	+459.30KNew	SEC filing ↗ May 13, 2026	▾
18	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. CIK 1705339 · View history	$2.80M 430,801 shares	0.00%	+24.56K(+6.00%)Added	SEC filing ↗ May 15, 2026	▾
19	MARSHALL WACE, LLP CIK 1318757 · View history	$2.53M 387,436 shares	0.00%	+320.51K(+478.90%)Added	SEC filing ↗ May 15, 2026	▾
20	FEDERATED HERMES, INC. CIK 1056288 · View history	$2.25M 343,819 shares	0.00%	-91.96K(-21.10%)Reduced	SEC filing ↗ May 11, 2026	▾

Showing 20 / 144 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

144

Cancelled or null records excluded

Disclosed shares

24,696,639

Not deduplicated across managers

Disclosed value

$161.06M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

FUELCELL ENERGY INC · Q1 2026

Explore all 144 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.