Innospec (IOSP) director awarded 1,539 restricted stock units vesting in 2029

Rhea-AI Filing Summary

Innospec Inc. director David Landless received an equity award rather than buying shares on the market. He acquired 1,539 shares of common stock through a grant of restricted stock units that vest in full on February 23, 2029, for his service as a non-employee director. After this award, he holds 8,226 shares directly.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider LANDLESS DAVID

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,539	$0.00	--

Holdings After Transaction: Common Stock — 8,226 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

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^*

LANDLESS DAVID

(Last) (First) (Middle)

8310 SOUTH VALLEY HIGHWAY

SUITE 350

(Street)

ENGLEWOOD CO 80112

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
INNOSPEC INC. [ IOSP ]

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
02/23/2026

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

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

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

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
Common Stock	02/23/2026		A		1,539(1)	A	$0.00	8,226	D

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

Explanation of Responses:

1. Represents Restricted Stock Units ("RSUs") vesting in full on February 23, 2029, granted by Issuer in connection with Reporting Person's service as a non-employee director.

	David Landless	02/24/2026
	** 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.

FAQ

What insider transaction did Innospec (IOSP) director David Landless report?

David Landless reported acquiring 1,539 Innospec common shares via a restricted stock unit grant. The award was given for his service as a non-employee director and is not an open-market purchase, reflecting standard equity-based compensation terms.

Was the Innospec (IOSP) Form 4 transaction a market purchase or a grant?

The Form 4 transaction was a grant, not a market purchase. Landless received 1,539 restricted stock units at no stated purchase price, awarded in connection with his role as a non-employee director, and scheduled to vest fully on February 23, 2029.

When do David Landless’s Innospec (IOSP) restricted stock units vest?

The restricted stock units reported by David Landless vest in full on February 23, 2029. Until vesting, they represent a contingent right to receive shares, granted as part of his compensation for serving as a non-employee director of Innospec Inc.

How many Innospec (IOSP) shares does David Landless own after this Form 4?

After the reported grant, Landless directly owns 8,226 Innospec common shares. This total includes the 1,539-share restricted stock unit award reported, which is tied to his ongoing service as a non-employee director and subject to vesting terms.

What does transaction code “A” mean in the Innospec (IOSP) Form 4?

Transaction code “A” on this Form 4 denotes a grant, award, or other acquisition. For Landless, it reflects an equity compensation grant of 1,539 restricted stock units, rather than an open-market buy or sell of Innospec common stock.