Innospec (IOSP) SVP David Jones reports share sale and tax withholding

Rhea-AI Filing Summary

Innospec Inc. senior vice president, general counsel and chief compliance officer David B. Jones reported two stock transactions. He sold 1,028 shares of common stock in an open-market sale at $75.64 per share and had 875 shares withheld to cover taxes upon vesting of restricted stock units. After these transactions, he directly owned 14,693 shares of Innospec common stock.

Insider Trade Summary

Net Seller: 1,028 shares ($77,758)

Net Sell 2 txns

Insider Jones David B.

Role SVP, GC & CCO

Sold 1,028 shs ($78K)

Type	Security	Shares	Price	Value
Sale	Common Stock	1,028	$75.64	$78K
Tax Withholding	Common Stock	875	$78.34	$69K

Holdings After Transaction: Common Stock — 14,693 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^*

Jones David B.

(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)
	SVP, GC & CCO

3. Date of Earliest Transaction (Month/Day/Year)
02/27/2026

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	02/27/2026		F		875(1)	D	$78.34	15,721	D
Common Stock	03/03/2026		S		1,028	D	$75.64	14,693	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. Shares withheld to settle income tax liability incurred upon vesting of restricted stock unit award on February 27, 2026.

	David Bentley Jones	03/03/2026
	** 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 transactions did Innospec (IOSP) executive David B. Jones report?

David B. Jones reported an open-market sale and a tax-related share withholding. He sold 1,028 Innospec common shares and had 875 shares withheld to satisfy income tax liabilities tied to a restricted stock unit vesting.

How many Innospec (IOSP) shares did David B. Jones sell and at what price?

David B. Jones sold 1,028 Innospec common shares at $75.64 per share. The transaction was reported as an open-market or private sale, classified under transaction code “S” in the Form 4 insider filing.

Why were 875 Innospec (IOSP) shares disposed of by David B. Jones?

875 shares were withheld to pay income taxes on a restricted stock unit vesting. The Form 4 footnote explains these shares were used to settle tax liabilities incurred when the award vested on February 27, 2026.

How many Innospec (IOSP) shares does David B. Jones own after these transactions?

After the reported transactions, David B. Jones directly owned 14,693 Innospec shares. This figure reflects his holdings following the 1,028-share sale and the 875-share tax-withholding disposition disclosed in the Form 4.

What do the transaction codes S and F mean in the Innospec (IOSP) Form 4?

Code “S” indicates an open-market or private sale of shares, while “F” indicates shares withheld for taxes. In this filing, S covers the 1,028-share sale and F covers the 875-share tax-withholding disposition.