Form 4 for FCEL FUELCELL ENERGY INC

Accepted 2026-05-12 20:29:52 ET · period of report 2026-05-08 · accession 0000897069-26-001110 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
D	2026-05-12 20:29	2026-05-08	FCEL	Achanta Shankar	EVP, Chf. Product, Tech Ofc	M - OptEx	$0.00	+2,020	5,610	+56%	$0
D	2026-05-12 20:29	2026-05-08	FCEL	Achanta Shankar	EVP, Chf. Product, Tech Ofc	F - Tax	$13.70	-492	5,118	-9%	-$6,740
D	2026-05-12 20:29	2026-05-08	FCEL	Achanta Shankar	EVP, Chf. Product, Tech Ofc	M - OptEx	$0.00	-2,020	2,020	-50%	$0

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2026-05-08	M	A	2,020	$0.00	5,610	D	—	—	(F1) Restricted stock units convert into common stock on a one-for-one basis.
2	Common	Common Stock	2026-05-08	F	D	492	$13.70	5,118	D	—	—	(F2) Represents shares withheld to satisfy tax obligations upon the vesting of restricted stock units.
3	Derivative	Employee Restricted Stock Units	2026-05-08	M	D	2,020	$0.00	2,020	D	$0.00 · — to —	2,020 Common Stock	(F1) Restricted stock units convert into common stock on a one-for-one basis. (F3) On May 8, 2024, the reporting person was granted restricted stock units, which vest 1/3 on each of the first three anniversaries of the date of grant, subject to continued employment. (F3) On May 8, 2024, the reporting person was granted restricted stock units, which vest 1/3 on each of the first three anniversaries of the date of grant, subject to continued employment.