Executive at Innospec (IOSP) receives 520-unit phantom stock award

Rhea-AI Filing Summary

Blair Graeme reported acquisition or exercise transactions in this Form 4 filing.

Innospec Inc. reported that Head of Group Finance Graeme Blair received a grant of 520 units of phantom stock on February 23, 2026. Each phantom stock unit is economically equivalent to one share of Innospec common stock and is scheduled to settle in cash on the award’s expiration date based on the closing share price at that time.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Blair Graeme

Role Head of Group Finance

Type	Security	Shares	Price	Value
Grant/Award	Phantom Stock	520	$0.00	--

Holdings After Transaction: Phantom Stock — 520 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^*

Blair Graeme

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Head of Group Finance

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

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
Phantom Stock	(1)	02/23/2026		A		520		02/23/2029	02/23/2029	Common Stock	520	$0	520	D

Explanation of Responses:

1. Each share of phantom stock is the economic equivalent of one share of Innospec common stock. The award is scheduled to automatically settle in cash on the Expiration Date based on the closing price of Innospec common stock on that date.

	Graeme Blair	02/25/2026
	** 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) report for Graeme Blair?

Innospec reported that Head of Group Finance Graeme Blair received a grant of 520 phantom stock units. These units mirror the value of Innospec common shares and represent cash-settled, stock-based compensation rather than a purchase of existing shares in the market.

What is the size of Graeme Blair’s phantom stock award at Innospec (IOSP)?

Graeme Blair was granted 520 phantom stock units. Each unit is economically equivalent to one Innospec common share, providing cash-based value tied to the stock price instead of delivering actual shares, as disclosed in the Form 4 filing footnote.

How are Innospec (IOSP) phantom stock units settled for Graeme Blair?

The phantom stock units granted to Graeme Blair are scheduled to settle in cash on the award’s expiration date. The cash amount will be based on the closing price of Innospec common stock on that expiration date, aligning payout value with share performance.

Does Graeme Blair’s Innospec (IOSP) phantom stock grant involve a purchase price?

The phantom stock grant to Graeme Blair carries a stated price of $0.0000 per unit. This indicates it is a compensation award with no cash paid by him, rather than an open-market share purchase, and will be settled in cash at expiration.

What does “economic equivalent of one share” mean in Innospec (IOSP) phantom stock?

Each phantom stock unit awarded to Graeme Blair tracks the value of one Innospec common share. At settlement, the cash payout is calculated using the closing stock price, so the economic outcome mimics stock ownership without issuing actual shares.