IOSP · Insider Trading
Innospec Inc.
Every open-market purchase and sale reported by IOSP officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-05 | Corbin Barnes | SVP, Corporate Dev and IR | A | +2,642 deriv. | — |
| 2026-10-05 | Ian Cleminson | EVP & CFO | A | +4,792 deriv. | — |
| 2026-10-05 | Ian Malcolm McRobbie | Senior VP R&T | A | +3,164 deriv. | — |
| 2026-10-05 | Hardy Louis Griffin III | SVP, HUMAN RESOURCES | A | +2,685 deriv. | — |
| 2026-10-05 | David B. Jones | SVP, GC & CCO | A | +3,188 deriv. | — |
| 2026-10-05 | Patrick Williams | PRESIDENT & CEO | A | +22,203 deriv. | — |
| 2026-03-06 | David Landless | Director | Sell | −594 | −$45.47K |
| 2026-03-06 | Larry PADFIELD | Director | Sell | −594 | −$45.47K |
| 2026-03-06 | Milton C Blackmore | Director | Sell | −594 | −$45.47K |
| 2026-03-06 | Claudia Poccia | Director | Sell | −119 | −$9.11K |
| 2026-03-06 | Ian Cleminson | EVP & CFO | Sell | −2,380 | −$182.20K |
| 2026-03-03 | Patrick Williams | PRESIDENT & CEO | F | −7,966 | −$624.06K |
| 2026-03-03 | Hardy Louis Griffin III | SVP, HUMAN RESOURCES | F | −401 | −$31.41K |
| 2026-03-03 | Milton C Blackmore | Director | Sell | −594 | −$45.47K |
| 2026-03-03 | Larry PADFIELD | Director | Sell | −594 | −$45.47K |
| 2026-03-03 | Corbin Barnes | SVP, Corporate Dev and IR | F | −166 | −$13.00K |
| 2026-03-03 | David B. Jones | SVP, GC & CCO | MIXED | −1,903 | −$146.31K |
| 2026-03-03 | Ian Cleminson | EVP & CFO | Sell | −2,380 | −$182.21K |
| 2026-03-03 | David Landless | Director | Sell | −594 | −$45.47K |
| 2026-03-03 | Claudia Poccia | Director | Sell | −119 | −$9.11K |
| 2026-02-25 | Elizabeth K Arnold | Director | A | +1,539 | — |
| 2026-02-25 | Hardy Louis Griffin III | SVP, HUMAN RESOURCES | A | +2,521 | — |
| 2026-02-25 | Graeme Blair | Head of Group Finance | A | +520 deriv. | — |
| 2026-02-25 | Ian Malcolm McRobbie | Senior VP R&T | A | +2,228 deriv. | — |
| 2026-02-25 | Patrick Williams | PRESIDENT & CEO | A | +20,846 | — |
| 2026-02-25 | David B. Jones | SVP, GC & CCO | A | +2,993 | — |
| 2026-02-25 | Corbin Barnes | SVP, Corporate Dev and IR | A | +2,481 | — |
| 2026-02-25 | Ian Cleminson | EVP & CFO | A | +4,499 | — |
| 2026-02-24 | Claudia Poccia | Director | A | +1,539 | — |
| 2026-02-24 | Leslie J Parrette | Director | A | +1,539 | — |
| 2026-02-24 | Larry PADFIELD | Director | MIXED | +1,539 | −$38.79K |
| 2026-02-24 | David Landless | Director | A | +1,539 | — |
| 2026-02-24 | Milton C Blackmore | Director | MIXED | +1,539 | −$38.79K |
| 2026-02-18 | Patrick Williams | PRESIDENT & CEO | A | +18,966 | — |
| 2026-02-18 | Ian Cleminson | EVP & CFO | A | +2,380 | — |
| 2026-02-18 | Hardy Louis Griffin III | SVP, HUMAN RESOURCES | A | +1,299 | — |
| 2026-02-18 | David B. Jones | SVP, GC & CCO | A | +1,903 | — |
| 2026-02-18 | Corbin Barnes | SVP, Corporate Dev and IR | A | +1,730 | — |
| 2025-11-17 | Leslie J Parrette | Director | Buy | +340 | +$25.19K |
| 2025-05-15 | Corbin Barnes | SVP, Corporate Dev and IR | F | −740 | −$67.73K |
| 2025-05-15 | Leslie J Parrette | Director | Sell | −446 | −$40.42K |
| 2025-05-15 | Hardy Louis Griffin III | SVP, HUMAN RESOURCES | F | −600 | −$54.92K |
| 2025-03-04 | Patrick Williams | PRESIDENT & CEO | F | −12,723 | −$1.32M |
| 2025-03-04 | Ian Cleminson | EVP & CFO | Sell | −4,275 | −$431.68K |
| 2025-02-27 | David B. Jones | SVP, GC & CCO | A | +2,036 | — |
| 2025-02-27 | Ian Malcolm McRobbie | Senior VP R&T | A | +1,560 deriv. | — |
| 2025-02-27 | Milton C Blackmore | Director | A | +1,209 | — |
| 2025-02-27 | Leslie J Parrette | Director | A | +1,209 | — |
| 2025-02-27 | Patrick Williams | PRESIDENT & CEO | A | +14,743 | — |
| 2025-02-27 | Graeme Blair | Head of Group Finance | A | +300 deriv. | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Patrick Williams | PRESIDENT & CEO | 231,535 | $22.85M |
| Ian Malcolm McRobbie | Senior VP R&T | 36,679 | $3.62M |
| Philip John Boon | Executive VP Business Ops | 23,833 | $2.35M |
| Ian Cleminson | EVP & CFO | 21,588 | $2.13M |
| David B. Jones | SVP, GC & CCO | 15,721 | $1.55M |
| Corbin Barnes | SVP, Corporate Dev and IR | 13,079 | $1.29M |
| Milton C Blackmore | Director | 11,530 | $1.14M |
| Hardy Louis Griffin III | SVP, HUMAN RESOURCES | 10,161 | $1.00M |
| Larry PADFIELD | Director | 9,453 | $932.73K |
| David Landless | Director | 7,939 | $783.34K |
| Leslie J Parrette | Director | 7,376 | $727.79K |
| Claudia Poccia | Director | 6,570 | $648.26K |
| Elizabeth K Arnold | Director | 6,376 | $629.12K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the IOSP quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.