| Insiders | Shares | % | Avg Price | Total $ | |
|---|---|---|---|---|---|
| Buys | 1 | +340 | 4.2% | $74.09 | +$25,191 |
| Sells | 7 | -7,815 | 96% | $78.63 | -$614,496 |
| Net | -6 | -7,475 | -92% | -$589,305 |
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Report Date |
|---|---|---|---|---|---|
| Patrick Williams | President & Ceo | $18,138,451 | 27 Feb 2026 | ||
| Brian Robert Watt | VP, Strat Plan & Regulatory | $2,551,166 | 10 May 2021 | ||
| Philip John Boon | Executive VP Business Ops | $2,074,185 | 21 Feb 2025 | ||
| Robert I. Paller | Director | $1,788,941 | 26 Feb 2024 | ||
| Ian Philip Cleminson | Evp & Cfo | $1,563,214 | -$182,197 | -10% | 27 Feb 2026 |
| Catherine Hessner | Senior VP - Human Resources | $1,542,844 | 10 May 2021 | ||
| David Bentley Jones | Svp, Gc & Cco | $1,111,378 | -$77,758 | -6.5% | 27 Feb 2026 |
| Corbin Barnes | SVP, Corporate Dev and IR | $1,024,656 | 27 Feb 2026 | ||
| Milton C. Blackmore | Director | $808,598 | -$129,769 | -14% | 27 Feb 2026 |
| Hardy L. Griffin | Svp, Human Resources | $796,012 | 27 Feb 2026 | ||
| Larry Padfield | Director | $725,895 | -$129,769 | -15% | 27 Feb 2026 |
| David Landless | Director | $586,061 | -$45,473 | -7.2% | 27 Feb 2026 |
| Leslie J. Parrette | Director | $579,827 | -$15,230 | -2.6% | 23 Feb 2026 |
| Elizabeth K. Arnold | Director | $501,217 | 23 Feb 2026 | ||
| Claudia Poccia | Director | $499,749 | -$9,110 | -1.8% | 27 Feb 2026 |
| Ian Malcolm McRobbie | Senior VP R&T | 23 Feb 2026 | |||
| Graeme Blair | Head of Group Finance | 23 Feb 2026 |
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| David Bentley Jones | IOSP | Common Stock | Sale | -6.54% | $77,758 | $75.64 | -1,028 | 14,693 | 03 Mar 2026 | Direct |
| Milton C. Blackmore | IOSP | Common Stock | Sale | -5.34% | $45,473 | $76.55 | -594 | 10,530 | 27 Feb 2026 | Direct |
| Larry Padfield | IOSP | Common Stock | Sale | -5.91% | $45,473 | $76.55 | -594 | 9,453 | 27 Feb 2026 | Direct |
| Claudia Poccia | IOSP | Common Stock | Sale | -1.8% | $9,110 | $76.56 | -119 | 6,508 | 27 Feb 2026 | Direct |
| David Landless | IOSP | Common Stock | Sale | -7.22% | $45,473 | $76.55 | -594 | 7,632 | 27 Feb 2026 | Direct |
| Ian Philip Cleminson | IOSP | Common Stock | Sale | -10.5% | $182,197 | $76.55 | -2,380 | 20,357 | 27 Feb 2026 | Direct |
| Hardy L. Griffin | IOSP | Common Stock | Tax liability | -3.8% | -401 | 10,161 | 27 Feb 2026 | Direct | ||
| David Bentley Jones | IOSP | Common Stock | Tax liability | -5.27% | -875 | 15,721 | 27 Feb 2026 | Direct | ||
| Corbin Barnes | IOSP | Common Stock | Tax liability | -1.25% | -166 | 13,080 | 27 Feb 2026 | Direct | ||
| Patrick Williams | IOSP | Common Stock | Tax liability | -3.33% | -7,966 | 231,535 | 27 Feb 2026 | Direct | ||
| Corbin Barnes | IOSP | Common Stock | Award | 23% | 2,481 | 13,246 | 23 Feb 2026 | Direct | ||
| Hardy L. Griffin | IOSP | Common Stock | Award | 31.4% | 2,521 | 10,562 | 23 Feb 2026 | Direct | ||
| Ian Philip Cleminson | IOSP | Common Stock | Award | 24.7% | 4,499 | 22,737 | 23 Feb 2026 | Direct | ||
| Patrick Williams | IOSP | Common Stock | Award | 9.53% | 20,846 | 239,501 | 23 Feb 2026 | Direct | ||
| David Bentley Jones | IOSP | Common Stock | Award | 22% | 2,993 | 16,596 | 23 Feb 2026 | Direct | ||
| Graeme Blair | IOSP | Phantom Stock | Award | 520 | 520 | 23 Feb 2026 | Direct | |||
| Ian Malcolm McRobbie | IOSP | Phantom Stock | Award | 2,228 | 2,228 | 23 Feb 2026 | Direct | |||
| Elizabeth K. Arnold | IOSP | Common Stock | Award | 31.8% | 1,539 | 6,376 | 23 Feb 2026 | Direct | ||
| Leslie J. Parrette | IOSP | Common Stock | Award | 26.4% | 1,539 | 7,376 | 23 Feb 2026 | Direct | ||
| David Landless | IOSP | Common Stock | Award | 23% | 1,539 | 8,226 | 23 Feb 2026 | Direct | ||
| Claudia Poccia | IOSP | Common Stock | Award | 30.2% | 1,539 | 6,627 | 23 Feb 2026 | Direct | ||
| Milton C. Blackmore | IOSP | Common Stock | Award | 16.1% | 1,539 | 11,124 | 23 Feb 2026 | Direct | ||
| Larry Padfield | IOSP | Common Stock | Award | 18.1% | 1,539 | 10,047 | 23 Feb 2026 | Direct | ||
| Milton C. Blackmore | IOSP | Common Stock | Sale | -9.7% | $84,296 | $81.84 | -1,030 | 9,585 | 20 Feb 2026 | Direct |
| Milton C. Blackmore | IOSP | Common Stock | Options Exercise | 10.8% | 1,030 | 10,615 | 20 Feb 2026 | Direct | ||
| Milton C. Blackmore | IOSP | Stock Option | Options Exercise | -100% | -1,030 | 0 | 20 Feb 2026 | Direct | ||
| Larry Padfield | IOSP | Common Stock | Sale | -10.8% | $84,296 | $81.84 | -1,030 | 8,508 | 20 Feb 2026 | Direct |
| Larry Padfield | IOSP | Common Stock | Options Exercise | 12.1% | 1,030 | 9,538 | 20 Feb 2026 | Direct | ||
| Larry Padfield | IOSP | Stock Option | Options Exercise | -100% | -1,030 | 0 | 20 Feb 2026 | Direct | ||
| Corbin Barnes | IOSP | Common Stock | Award | 19.2% | 1,730 | 10,765 | 16 Feb 2026 | Direct | ||
| Hardy L. Griffin | IOSP | Common Stock | Award | 19.3% | 1,299 | 8,041 | 16 Feb 2026 | Direct | ||
| Ian Philip Cleminson | IOSP | Common Stock | Award | 15% | 2,380 | 18,238 | 16 Feb 2026 | Direct | ||
| Patrick Williams | IOSP | Common Stock | Award | 9.5% | 18,966 | 218,655 | 16 Feb 2026 | Direct | ||
| David Bentley Jones | IOSP | Common Stock | Award | 16.3% | 1,903 | 13,603 | 16 Feb 2026 | Direct | ||
| Corbin Barnes | IOSP | Common Stock | Small acquisition under Rule 16a-6 | 0.22% | 19.87 | 9,035 | 26 Nov 2025 | Direct | ||
| Leslie J. Parrette | IOSP | Common Stock | Purchase | 6.19% | $25,191 | $74.09 | 340 | 5,837 | 14 Nov 2025 | Direct |
| Corbin Barnes | IOSP | Common Stock | Small acquisition under Rule 16a-6 | 0.19% | 16.75 | 9,015 | 30 May 2025 | Direct | ||
| Leslie J. Parrette | IOSP | Common Stock | Sale | -7.5% | $40,421 | $90.63 | -446 | 5,497 | 13 May 2025 | Direct |
| Hardy L. Griffin | IOSP | Common Stock | Tax liability | -8.17% | -600 | 6,742 | 13 May 2025 | Direct | ||
| Corbin Barnes | IOSP | Common Stock | Tax liability | -7.6% | -740 | 8,998 | 13 May 2025 | Direct |