Innospec Inc. (IOSP)
Nasdaq: IOSP · Chemicals & Allied Products · Englewood, CO · filing with the SEC since 1998
Grade6.6
◀ Past 5.4● Present 7.8▶ Future 6.1
Who owns Innospec Inc.
As filed with the SECHolders of 5% or more
4
Blackrock, Inc. holds 14.7% of Common Stock, as its SCHEDULE 13G/A filed Apr 30, 2025 says.
Directors and officers
14
report now, of 24 people on the record since 2006. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 4 named at left.
Holders of 5% or moreshare of the class, as filed
Blackrock, Inc.
SCHEDULE 13G/A · filed Apr 30, 2025 · Common Stock
Vanguard Portfolio Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Dimensional Fund Advisors LP
SCHEDULE 13G · filed Jul 14, 2026 · Common Stock
Vanguard Capital Management
SCHEDULE 13G · filed Apr 30, 2026 · Common Stock
Allspring Global Investments Holdings, LLC
SCHEDULE 13G/A · filed Oct 7, 2026 · Common Stock SH · reported falling below 5%, from 4.7% in Oct 7, 2026
Wasatch Advisors LP
SCHEDULE 13G/A · filed May 13, 2025 · Common Stock · reported falling below 5%, from 6.3% in Feb 12, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 27, 2026 · Common Stock · reported falling below 5%
What IOSP reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Biotechnology Solutions LLC
A company bought · acquisition · owns, named in the 10-K filed Feb 18, 2026
QGP Quimica Geral (QGP)
A company bought · asset acquisition · owns, named in the 10-K filed Feb 18, 2026
Quimica Geral S A
A company bought · acquisition · owns, named in the 10-K filed Feb 18, 2026
13 subsidiaries in 7 countries, from the list filed with the 10-K filed Feb 18, 2026.
Insider tradesForm 4
18sales
2purchases
0sales on a scheduled plan
6people selling
$900,000sold, in dollars
$100,000bought, in dollars
Open-market trades on Form 4 from Nov 12, 2025 to Nov 12, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 12, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window7 of 24 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Cleminson Ian | EVP & CFO | 3 | $400,000 | 0 | 0 | $0 |
| Blackmore Milton C | director | 4 | $200,000 | 0 | 0 | $0 |
| Padfield Larry | director | 4 | $200,000 | 0 | 0 | $0 |
| Jones David Bentley | SVP, GC & CCO | 1 | $100,000 | 0 | 0 | $0 |
| Landless David | director | 3 | $100,000 | 0 | 0 | $0 |
| Parrette Leslie J | director | 0 | $0 | 0 | 2 | $100,000 |
| Poccia Claudia | director | 3 | $0 | 0 | 0 | $0 |