Allspring reports 7.7% stake in Innospec Inc

Rhea-AI Filing Summary

Allspring Global Investments Holdings, LLC reports beneficial ownership of Innospec Inc common stock on an amended Schedule 13G. The firm and its investment adviser subsidiaries collectively beneficially own 1,892,471 shares, representing 7.7% of the outstanding common stock.

Allspring has sole voting power over 1,891,583 shares and sole dispositive power over 1,892,471 shares, with no shared voting or dispositive power. The securities are held of record by clients of Allspring’s investment advisers, who are entitled to dividends and sale proceeds, but no single client holds more than five percent of the class.

Key Figures

Beneficial ownership: 1,892,471 shares Percent of class: 7.7% Sole voting power: 1,891,583 shares +3 more

6 metrics

Beneficial ownership 1,892,471 shares Amount of Innospec Inc common stock beneficially owned by Allspring

Percent of class 7.7% Portion of Innospec Inc common stock class beneficially owned

Sole voting power 1,891,583 shares Shares over which Allspring has sole power to vote or direct the vote

Sole dispositive power 1,892,471 shares Shares over which Allspring has sole power to dispose or direct disposition

CUSIP 45768S105 CUSIP number for Innospec Inc common stock

Signature date 07/31/2026 Date the Schedule 13G/A amendment was signed by Senior Compliance Manager

Key Terms

beneficially owned, sole voting power, sole dispositive power, Schedule 13G, +1 more

5 terms

beneficially owned financial

"Amount beneficially owned: 1,892,471"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole voting power financial

"Sole power to vote or to direct the vote: 1,891,583"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

sole dispositive power financial

"Sole power to dispose or to direct the disposition of: 1,892,471"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

Schedule 13G regulatory

"The securities as to which this Schedule is filed are owned of record"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

parent holding company financial

"Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What percentage of Innospec Inc (IOSP) does Allspring Global Investments beneficially own?

Allspring Global Investments beneficially owns 7.7% of Innospec Inc’s common stock, corresponding to 1,892,471 shares. This ownership is reported on an amended Schedule 13G and reflects holdings across its investment adviser subsidiaries.

How many Innospec Inc (IOSP) shares does Allspring Global Investments control the voting of?

Allspring Global Investments reports sole voting power over 1,891,583 shares of Innospec Inc common stock and no shared voting power. This indicates voting authority rests primarily with Allspring-related entities rather than other parties.

Does any single Allspring client hold more than 5% of Innospec Inc (IOSP)?

No single Allspring client is known to hold more than 5% of Innospec Inc’s common stock. The filing states that while clients receive dividends and sale proceeds, none has rights to more than five percent of the class.

Which Allspring subsidiaries are identified as owning Innospec Inc (IOSP) shares?

The filing lists Allspring Global Investments, LLC and Allspring Funds Management, LLC as investment adviser subsidiaries. Each entity beneficially owns 5% or greater of the outstanding Innospec common stock reported in the Schedule 13G/A exhibit.

What is the nature of Allspring’s dispositive power over Innospec Inc (IOSP) shares?

Allspring reports sole dispositive power over 1,892,471 shares of Innospec Inc and no shared dispositive power. This means Allspring-controlled entities can direct how these shares are sold or otherwise disposed of on behalf of their clients.

Where is Innospec Inc (IOSP) headquartered according to this filing?

Innospec Inc’s principal executive offices are at 8310 South Valley Highway, Suite 350, Englewood, Colorado 80112. This address is provided as part of the issuer identification information in the Schedule 13G/A amendment.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 07/31/2026 - 01:54 PM Accepted by SEC EDGAR 07/31/2026 - 01:53 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 5)

Innospec Inc

(Name of Issuer)

Common Stock SH

(Title of Class of Securities)

45768S105

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 45768S105

1

Names of Reporting Persons

Allspring Global Investments Holdings, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 1,891,583.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 1,892,471.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,892,471.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.7 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Innospec Inc
(b)	Address of issuer's principal executive offices: 8310 SOUTH VALLEY HIGHWAY, SUITE 350, ENGLEWOOD, US-CO, 80112, US
Item 2.
(a)	Name of person filing: Allspring Global Investments Holdings, LLC
(b)	Address or principal business office or, if none, residence: 1415 Vantage Park Drive, Charlotte, 28203, North Carolina, United States
(c)	Citizenship: DELAWARE
(d)	Title of class of securities: Common Stock SH
(e)	CUSIP No.: 45768S105
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 1,892,471
(b)	Percent of class: 7.7 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1,891,583
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 1,892,471
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. The securities as to which this Schedule is filed are owned of record by clients of one or more investment Advisers identified in Exhibit A directly or indirectly owned by Allspring Global Investments Holdings, LLC. Those Clients have the right to receive, or the power to direct the receipt of, dividends from, or the proceeds for the sale of, such securities. No such client is known to have such right or power with respect to more than five percent of this class of securities, except as follows: None
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See Exhibit A
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Allspring Global Investments Holdings, LLC

Signature:	Jennifer Grunberg
Name/Title:	Senior Compliance Manager
Date:	07/31/2026

Exhibit Information

Exhibit A Subsidiary Allspring Global Investments, LLC* - IA Allspring Funds Management, LLC* - IA *Entity beneficially owns 5% or greater of the outstanding shares of the security class being reported on this schedule 13G.