INNOSPEC INC. Insider Trading Activity
Every SEC Form 4 insider transaction reported for INNOSPEC INC. (IOSP), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are IOSP insiders buying or selling?
In the last 12 months, INNOSPEC INC. insiders reported 1 open-market purchase ($25.2K) and 13 sales ($901.8K) — net selling of $876.6K. Since February 2018, Trabud has recorded 116 Form 4 filings for IOSP: 11 buys ($1.1M) and 105 sells ($37.3M).
Source: SEC EDGAR Form 4
What stands out
- The largest open-market purchase in the last 12 months was $25.2K by Leslie J Parrette (Director) on Nov 17, 2025. SEC ↗
- The most recent open-market purchase was reported on Nov 17, 2025 (11 months ago).
Key Statistics (February 2018 – Mar 7, 2026)
Total Form 4 filings
116
SEC EDGAR
Insider filers
18
Insider buys (11)
$1.1M
Insider sells (105)
$37.3M
Insider sentiment
Net sellingNet insider flow of $36.2M in net selling since February 2018, and $876.6K in net selling over the last 12 months.
Recent IOSP insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Mar 7, 2026 | Milton C Blackmore | Director | Sale | 594 | $76.55 | $45.5K | SEC ↗ |
| Mar 7, 2026 | Larry Padfield | Director | Sale | 594 | $76.55 | $45.5K | SEC ↗ |
| Mar 6, 2026 | Claudia Poccia | Director | Sale | 119 | $76.56 | $9.1K | SEC ↗ |
| Mar 6, 2026 | David Landless | Director | Sale | 594 | $76.55 | $45.5K | SEC ↗ |
| Mar 6, 2026 | Ian Cleminson | EVP & CFO | Sale | 2.4K | $76.55 | $182.2K | SEC ↗ |
| Mar 4, 2026 | Milton C Blackmore | Director | Sale | 594 | $76.56 | $45.5K | SEC ↗ |
| Mar 4, 2026 | Larry Padfield | Director | Sale | 594 | $76.56 | $45.5K | SEC ↗ |
| Mar 4, 2026 | Claudia Poccia | Director | Sale | 119 | $76.56 | $9.1K | SEC ↗ |
| Mar 4, 2026 | David Landless | Director | Sale | 594 | $76.56 | $45.5K | SEC ↗ |
| Mar 4, 2026 | David B. Jones | SVP, GC & CCO | Sale | 1.0K | $75.64 | $77.8K | SEC ↗ |
| Mar 3, 2026 | Ian Cleminson | EVP & CFO | Sale | 2.4K | $76.56 | $182.2K | SEC ↗ |
| Feb 24, 2026 | Milton C Blackmore | Director | Sale | 1.0K | $81.84 | $84.3K | SEC ↗ |
| Feb 24, 2026 | Larry Padfield | Director | Sale | 1.0K | $81.84 | $84.3K | SEC ↗ |
| Nov 17, 2025 | Leslie J Parrette | Director | Purchase | 340 | $74.09 | $25.2K | SEC ↗ |
| May 16, 2025 | Leslie J Parrette | Director | Sale | 446 | $90.63 | $40.4K | SEC ↗ |
| Mar 4, 2025 | Ian Cleminson | EVP & CFO | Sale | 4.3K | $100.98 | $431.7K | SEC ↗ |
| Feb 26, 2025 | Corbin Barnes | SVP, Corporate Dev and IR | Sale | 598 | $103.06 | $61.6K | SEC ↗ |
| Feb 26, 2025 | Larry Padfield | Director | Sale | 196 | $103.30 | $20.2K | SEC ↗ |
| Feb 25, 2025 | Philip John Boon | Executive VP Business Ops | Sale | 3.8K | $103.30 | $387.8K | SEC ↗ |
| Feb 25, 2025 | Corbin Barnes | SVP, Corporate Dev and IR | Sale | 2.7K | $103.30 | $278.1K | SEC ↗ |
| Feb 25, 2025 | David B. Jones | SVP, GC & CCO | Sale | 3.1K | $103.30 | $319.3K | SEC ↗ |
| Feb 25, 2025 | Milton C Blackmore | Director | Sale | 652 | $103.30 | $67.4K | SEC ↗ |
| Jan 31, 2025 | Hardy Louis Griffin III | SVP, HUMAN RESOURCES | Sale | 161 | $117.52 | $18.9K | SEC ↗ |
| Jan 30, 2025 | Corbin Barnes | SVP, Corporate Dev and IR | Sale | 307 | $117.52 | $36.1K | SEC ↗ |
| Nov 25, 2024 | Claudia Poccia | Director | Sale | 300 | $119.88 | $36.0K | SEC ↗ |
Showing the 25 most recent of 116 Form 4 filings for INNOSPEC INC..
Most active IOSP insiders
- Patrick Williams19 filings
- Ian Cleminson14 filings
- Milton C Blackmore11 filings
- Philip John Boon10 filings
- Catherine Hessner8 filings
Ask anything about IOSP insider activity
Use Trabud's AI agent to query INNOSPEC INC.'s Form 4 history in plain English — "Show me IOSP CEO purchases this year" or compare it against any other ticker.
Open the AI agentIOSP insider trading FAQ
Are INNOSPEC INC. insiders buying or selling?
In the last 12 months, INNOSPEC INC. insiders reported 1 open-market purchase ($25.2K) and 13 sales ($901.8K) — net selling of $876.6K. Since February 2018, Trabud has recorded 116 Form 4 filings for IOSP: 11 buys ($1.1M) and 105 sells ($37.3M). Over the full record that is net selling of $36.2M.
How many insiders trade IOSP stock?
18 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for INNOSPEC INC.. The most recent filing was accepted on Mar 7, 2026.
Where does Trabud get IOSP insider trading data?
All IOSP insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.