[Form 4] FUEL TECH, INC. Insider Trading Activity

Cummings William E JR reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Cummings William E JR reported acquisition or exercise transactions in this Form 4 filing.

FUEL TECH, INC. reported that Senior Vice President of Sales William E. Cummings Jr. received a grant of 6,250 Restricted Stock Units as equity compensation. Each unit represents a contingent right to receive one share of FTEK common stock.

The 6,250 RSUs vest in three equal installments on the first, second, and third anniversaries of the grant date, subject to the company’s RSU award agreement. Following this grant, Cummings holds 6,250 RSUs directly, with shares to be delivered after each vesting date.

Insider Trade Summary

Grant/Award: 6,250 shares

Grant/Award 1 txn

Insider Cummings William E JR

Role Senior Vice President, Sales

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	6,250	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 6,250 contracts (Direct)

Footnotes (2)

1. F1. Each Restricted Stock Unit represents a contingent right to receive one stock of FTEK Common Stock.
2. F2. The Restricted Stock Units vest in three installments: (i) one-third of the total RSUs awarded shall vest on the one year anniversary after the transaction date shown above, (ii) one-third shall vest on the second anniversary of the transaction date shown above, and (iii) one-third shall vest on the third anniversary of the transaction date shown above. Subject to the restrictions on distribution set forth in the registrant's RSU Award Agreement, generally, shares will be delivered to the reporting person in respect of vested RSUs as soon as practicable after each vesting date, unless the reporting person has elected to defer distribution until a later date.

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Accepted by SEC EDGAR 03/27/2026 - 04:02 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Cummings William E JR

(Last) (First) (Middle)

27601 BELLA VISTA PARKWAY

(Street)

WARRENVILLE ILLINOIS 60190

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
FUEL TECH, INC. [ FTEK ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Senior Vice President, Sales

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/24/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(1)	03/24/2026		A		6,250		(2)	(2)	Common Stock	6,250	$0	6,250	D

Explanation of Responses:

1. Each Restricted Stock Unit represents a contingent right to receive one stock of FTEK Common Stock.

2. The Restricted Stock Units vest in three installments: (i) one-third of the total RSUs awarded shall vest on the one year anniversary after the transaction date shown above, (ii) one-third shall vest on the second anniversary of the transaction date shown above, and (iii) one-third shall vest on the third anniversary of the transaction date shown above. Subject to the restrictions on distribution set forth in the registrant's RSU Award Agreement, generally, shares will be delivered to the reporting person in respect of vested RSUs as soon as practicable after each vesting date, unless the reporting person has elected to defer distribution until a later date.

	/s/ William E Cummings Jr.	03/27/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)