Innospec (IOSP) SVP awarded 2,228 cash-settled phantom stock units

Rhea-AI Filing Summary

MCROBBIE IAN MALCOLM reported acquisition or exercise transactions in this Form 4 filing.

Innospec Inc. executive Ian Malcolm McRobbie, Senior VP R&T, reported an award of 2,228 shares of phantom stock on February 23, 2026. This is a compensation grant recorded at a price of $0.00 per unit, bringing his reported phantom stock holdings to 2,228 units.

Each phantom stock share is economically equivalent to one share of Innospec common stock but will settle in cash rather than stock. The cash payout is scheduled for the award’s expiration date and will be based on the closing price of Innospec common stock on that date.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider MCROBBIE IAN MALCOLM

Role Senior VP R&T

Type	Security	Shares	Price	Value
Grant/Award	Phantom Stock	2,228	$0.00	--

Holdings After Transaction: Phantom Stock — 2,228 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^*

MCROBBIE IAN MALCOLM

(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)
	Senior VP R&T

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		2,228		02/23/2029	02/23/2029	Common Stock	2,228	$0	2,228	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.

	Ian Malcolm McRobbie	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 did Innospec (IOSP) executive Ian McRobbie report on this Form 4?

Ian Malcolm McRobbie, Senior VP R&T at Innospec, reported receiving 2,228 shares of phantom stock on February 23, 2026. This award is a form of deferred, cash-settled compensation tied to the future closing price of Innospec’s common stock at the award’s expiration date.

How many phantom stock units did the Innospec (IOSP) executive receive?

The executive received 2,228 phantom stock units, each economically equivalent to one share of Innospec common stock. These units were granted at a recorded price of $0.00 per unit and represent a compensation award rather than an open-market purchase of common stock.

Is the Innospec (IOSP) phantom stock award settled in shares or cash?

The phantom stock award is scheduled to settle in cash, not in actual Innospec shares. On the expiration date, the cash payment will be calculated using the closing price of Innospec common stock on that date, aligning the award’s value with the company’s stock performance.

Does the Innospec (IOSP) phantom stock grant give voting rights like common shares?

The filing describes the instrument as phantom stock economically equivalent to common shares, settling in cash based on the stock price. It does not state that the award carries voting or other shareholder rights typically associated with owning actual Innospec common stock.

How did this Form 4 change the executive’s phantom stock holdings at Innospec (IOSP)?

After the February 23, 2026 transaction, the executive’s reported phantom stock holdings total 2,228 units. The filing shows this entire amount resulting from the new grant, reflecting a compensation-based acquisition rather than cumulative open-market buying or selling activity.