IOSP INNOSPEC INC.
Nasdaq · SEC CIK 1054905 · EDGAR
- Bought, last 12 months
- $25.2K 1 purchases by 1 insiders
- Sold, last 12 months
- $901.8K 13 sales by 6 insiders
- Filings on record
- 170 since 2021-11-12, latest 2026-03-06
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Cleminson Ian | EVP, CFO | — | $364.4K |
| PADFIELD Larry | Dir | — | $175.2K |
| Blackmore Milton C | Dir | — | $175.2K |
| LANDLESS DAVID | Dir | — | $90.9K |
| Jones David B. | SVP, GC, CCO | — | $77.8K |
| PARRETTE LESLIE J | Dir | $25.2K | — |
| Poccia Claudia | Dir | — | $18.2K |
| GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | — | — |
| BARNES CORBIN | SVP, Corp. Dev, IR | — | — |
| Arnold Elizabeth K | Dir | — | — |
Transactions 225
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MA | 2026-03-06 | 2026-02-27 | IOSP | Blackmore Milton C | Dir | S - Sale | $76.55 | -594 | 10.8K | -5% | -$45.5K |
| MA | 2026-03-06 | 2026-02-27 | IOSP | Cleminson Ian | EVP, CFO | S - Sale | $76.55 | -2,380 | 21.6K | -10% | -$182.2K |
| MA | 2026-03-06 | 2026-02-27 | IOSP | PADFIELD Larry | Dir | S - Sale | $76.55 | -594 | 9,760 | -6% | -$45.5K |
| MA | 2026-03-06 | 2026-02-27 | IOSP | Poccia Claudia | Dir | S - Sale | $76.56 | -119 | 6,508 | -2% | -$9,110 |
| MA | 2026-03-06 | 2026-02-27 | IOSP | LANDLESS DAVID | Dir | S - Sale | $76.55 | -594 | 7,632 | -7% | -$45.5K |
| 2026-03-03 | 2026-02-27 | IOSP | Poccia Claudia | Dir | S - Sale | $76.56 | -119 | 6,508 | -2% | -$9,111 | |
| 2026-03-03 | 2026-02-27 | IOSP | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | F - Tax | $78.34 | -401 | 10.2K | -4% | -$31.4K | |
| 2026-03-03 | 2026-02-27 | IOSP | PADFIELD Larry | Dir | S - Sale | $76.56 | -594 | 9,453 | -6% | -$45.5K | |
| 2026-03-03 | 2026-02-27 | IOSP | Cleminson Ian | EVP, CFO | S - Sale | $76.56 | -2,380 | 20.4K | -10% | -$182.2K | |
| 2026-03-03 | 2026-02-27 | IOSP | Williams Patrick | Pres, CEO | F - Tax | $78.34 | -7,966 | 231.5K | -3% | -$624.1K | |
| 2026-03-03 | 2026-02-27 | IOSP | Blackmore Milton C | Dir | S - Sale | $76.56 | -594 | 10.5K | -5% | -$45.5K | |
| 2026-03-03 | 2026-03-03 | IOSP | Jones David B. | SVP, GC, CCO | S - Sale | $75.64 | -1,028 | 14.7K | -7% | -$77.8K | |
| 2026-03-03 | 2026-02-27 | IOSP | Jones David B. | SVP, GC, CCO | F - Tax | $78.34 | -875 | 15.7K | -5% | -$68.5K | |
| 2026-03-03 | 2026-02-27 | IOSP | BARNES CORBIN | SVP, Corp. Dev, IR | F - Tax | $78.34 | -166 | 13.1K | -1% | -$13.0K | |
| 2026-03-03 | 2026-02-27 | IOSP | LANDLESS DAVID | Dir | S - Sale | $76.56 | -594 | 7,632 | -7% | -$45.5K | |
| 2026-02-25 | 2026-02-23 | IOSP | Jones David B. | SVP, GC, CCO | A - Grant | $0.00 | +2,993 | 16.6K | +22% | $0 | |
| 2026-02-25 | 2026-02-23 | IOSP | Arnold Elizabeth K | Dir | A - Grant | $0.00 | +1,539 | 6,376 | +32% | $0 | |
| 2026-02-25 | 2026-02-23 | IOSP | BARNES CORBIN | SVP, Corp. Dev, IR | A - Grant | $0.00 | +2,481 | 13.2K | +23% | $0 | |
| 2026-02-25 | 2026-02-23 | IOSP | Williams Patrick | Pres, CEO | A - Grant | $0.00 | +20.8K | 239.5K | +10% | $0 | |
| 2026-02-25 | 2026-02-23 | IOSP | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | A - Grant | $0.00 | +2,521 | 10.6K | +31% | $0 | |
| 2026-02-25 | 2026-02-23 | IOSP | Cleminson Ian | EVP, CFO | A - Grant | $0.00 | +4,499 | 22.7K | +25% | $0 | |
| D | 2026-02-24 | 2026-02-20 | IOSP | PADFIELD Larry | Dir | M - OptEx | $44.18 | +1,030 | 9,538 | +12% | +$45.5K |
| D | 2026-02-24 | 2026-02-23 | IOSP | PADFIELD Larry | Dir | A - Grant | $0.00 | +1,539 | 10.0K | +18% | $0 |
| D | 2026-02-24 | 2026-02-20 | IOSP | PADFIELD Larry | Dir | S - Sale+OE | $81.84 | -1,030 | 8,508 | -11% | -$84.3K |
| 2026-02-24 | 2026-02-23 | IOSP | PARRETTE LESLIE J | Dir | A - Grant | $0.00 | +1,539 | 7,376 | +26% | $0 | |
| 2026-02-24 | 2026-02-23 | IOSP | Poccia Claudia | Dir | A - Grant | $0.00 | +1,539 | 6,627 | +30% | $0 | |
| D | 2026-02-24 | 2026-02-23 | IOSP | Blackmore Milton C | Dir | A - Grant | $0.00 | +1,539 | 11.1K | +16% | $0 |
| D | 2026-02-24 | 2026-02-20 | IOSP | Blackmore Milton C | Dir | M - OptEx | $44.18 | +1,030 | 10.6K | +11% | +$45.5K |
| D | 2026-02-24 | 2026-02-20 | IOSP | Blackmore Milton C | Dir | S - Sale+OE | $81.84 | -1,030 | 9,585 | -10% | -$84.3K |
| 2026-02-24 | 2026-02-23 | IOSP | LANDLESS DAVID | Dir | A - Grant | $0.00 | +1,539 | 8,226 | +23% | $0 | |
| 2026-02-18 | 2026-02-16 | IOSP | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | A - Grant | $0.00 | +1,299 | 8,041 | +19% | $0 | |
| 2026-02-18 | 2026-02-16 | IOSP | Cleminson Ian | EVP, CFO | A - Grant | $0.00 | +2,380 | 18.2K | +15% | $0 | |
| 2026-02-18 | 2026-02-16 | IOSP | Jones David B. | SVP, GC, CCO | A - Grant | $0.00 | +1,903 | 13.6K | +16% | $0 | |
| 2026-02-18 | 2026-02-16 | IOSP | Williams Patrick | Pres, CEO | A - Grant | $0.00 | +19.0K | 218.7K | +9% | $0 | |
| 2026-02-18 | 2026-02-16 | IOSP | BARNES CORBIN | SVP, Corp. Dev, IR | A - Grant | $0.00 | +1,730 | 10.8K | +19% | $0 | |
| 2025-11-17 | 2025-11-14 | IOSP | PARRETTE LESLIE J | Dir | P - Purchase | $74.09 | +340 | 5,837 | +6% | +$25.2K | |
| 2025-05-15 | 2025-05-13 | IOSP | BARNES CORBIN | SVP, Corp. Dev, IR | F - Tax | $91.53 | -740 | 8,998 | -8% | -$67.7K | |
| M | 2025-05-15 | 2025-05-13 | IOSP | PARRETTE LESLIE J | Dir | S - Sale | $90.63 | -446 | 5,497 | -8% | -$40.4K |
| 2025-05-15 | 2025-05-13 | IOSP | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | F - Tax | $91.53 | -600 | 6,742 | -8% | -$54.9K | |
| 2025-03-04 | 2025-03-03 | IOSP | Williams Patrick | Pres, CEO | F - Tax | $103.66 | -12.7K | 199.7K | -6% | -$1.32M | |
| 2025-03-04 | 2025-03-03 | IOSP | Cleminson Ian | EVP, CFO | S - Sale | $100.98 | -4,275 | 15.9K | -21% | -$431.7K | |
| 2025-02-27 | 2025-02-24 | IOSP | Arnold Elizabeth K | Dir | A - Grant | $0.00 | +1,209 | 4,837 | +33% | $0 | |
| 2025-02-27 | 2025-02-24 | IOSP | PARRETTE LESLIE J | Dir | A - Grant | $0.00 | +1,209 | 5,943 | +26% | $0 | |
| 2025-02-27 | 2025-02-24 | IOSP | Poccia Claudia | Dir | A - Grant | $0.00 | +1,209 | 5,088 | +31% | $0 | |
| 2025-02-27 | 2025-02-24 | IOSP | Jones David B. | SVP, GC, CCO | A - Grant | $0.00 | +2,036 | 11.7K | +21% | $0 | |
| 2025-02-27 | 2025-02-24 | IOSP | Blackmore Milton C | Dir | A - Grant | $0.00 | +1,209 | 9,585 | +14% | $0 | |
| 2025-02-27 | 2025-02-24 | IOSP | LANDLESS DAVID | Dir | A - Grant | $0.00 | +1,209 | 6,687 | +22% | $0 | |
| D | 2025-02-27 | 2025-02-21 | IOSP | BARNES CORBIN | SVP, Corp. Dev, IR | D - Sale to Iss | $101.99 | -200 | 8,051 | -2% | -$20.4K |
| D | 2025-02-27 | 2025-02-24 | IOSP | BARNES CORBIN | SVP, Corp. Dev, IR | A - Grant | $0.00 | +1,687 | 9,738 | +21% | $0 |
| D | 2025-02-27 | 2025-02-21 | IOSP | BARNES CORBIN | SVP, Corp. Dev, IR | M - OptEx | $99.68 | +200 | 8,251 | +2% | +$19.9K |
| 2025-02-27 | 2025-02-24 | IOSP | Williams Patrick | Pres, CEO | A - Grant | $0.00 | +14.7K | 212.4K | +7% | $0 | |
| D | 2025-02-27 | 2025-02-21 | IOSP | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | M - OptEx | $99.68 | +121 | 5,781 | +2% | +$12.1K |
| D | 2025-02-27 | 2025-02-24 | IOSP | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | A - Grant | $0.00 | +1,682 | 7,342 | +30% | $0 |
| D | 2025-02-27 | 2025-02-21 | IOSP | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | D - Sale to Iss | $101.99 | -121 | 5,660 | -2% | -$12.3K |
| 2025-02-27 | 2025-02-24 | IOSP | Cleminson Ian | VP, CFO | A - Grant | $0.00 | +2,862 | 20.1K | +17% | $0 | |
| 2025-02-27 | 2025-02-24 | IOSP | PADFIELD Larry | Dir | A - Grant | $0.00 | +1,209 | 8,508 | +17% | $0 | |
| D | 2025-02-26 | 2025-02-24 | IOSP | BARNES CORBIN | SVP, Corp. Dev, IR | M - OptEx | $99.68 | +598 | 8,649 | +7% | +$59.6K |
| D | 2025-02-26 | 2025-02-24 | IOSP | BARNES CORBIN | SVP, Corp. Dev, IR | S - Sale+OE | $103.06 | -598 | 8,051 | -7% | -$61.6K |
| 2025-02-25 | 2025-02-21 | IOSP | PADFIELD Larry | Dir | S - Sale | $103.30 | -196 | 7,299 | -3% | -$20.2K | |
| 2025-02-25 | 2025-02-21 | IOSP | Cleminson Ian | VP, CFO | A - Grant | $0.00 | +4,275 | 17.3K | +33% | $0 | |
| 2025-02-25 | 2025-02-21 | IOSP | Williams Patrick | Pres, CEO | A - Grant | $0.00 | +30.3K | 197.7K | +18% | $0 | |
| 2025-02-25 | 2025-02-21 | IOSP | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | F - Tax | $105.07 | -488 | 5,660 | -8% | -$51.3K | |
| 2025-02-25 | 2025-02-21 | IOSP | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | A - Grant | $0.00 | +1,625 | 6,148 | +36% | $0 | |
| 2025-02-25 | 2025-02-21 | IOSP | LANDLESS DAVID | Dir | F - Tax | $105.07 | -306 | 5,478 | -5% | -$32.2K | |
| 2025-02-24 | 2025-02-21 | IOSP | BOON PHILIP JOHN | Executive VP Business Ops | S - Sale | $103.30 | -3,754 | 20.1K | -16% | -$387.8K | |
| 2025-02-24 | 2025-02-21 | IOSP | BOON PHILIP JOHN | Executive VP Business Ops | A - Grant | $0.00 | +3,754 | 23.8K | +19% | $0 | |
| 2025-02-24 | 2025-02-21 | IOSP | BARNES CORBIN | SVP, Corp. Dev, IR | A - Grant | $0.00 | +2,692 | 10.7K | +33% | $0 | |
| 2025-02-24 | 2025-02-21 | IOSP | BARNES CORBIN | SVP, Corp. Dev, IR | S - Sale | $103.30 | -2,692 | 8,051 | -25% | -$278.1K | |
| 2025-02-24 | 2025-02-21 | IOSP | Jones David B. | SVP, GC, CCO | A - Grant | $0.00 | +3,091 | 12.8K | +32% | $0 | |
| 2025-02-24 | 2025-02-21 | IOSP | Jones David B. | SVP, GC, CCO | S - Sale | $103.30 | -3,091 | 9,664 | -24% | -$319.3K | |
| 2025-02-24 | 2025-02-21 | IOSP | Blackmore Milton C | Dir | S - Sale | $103.30 | -652 | 8,376 | -7% | -$67.4K | |
| 2025-01-30 | 2024-11-18 | IOSP | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | S - Sale | $117.52 | -161 | 4,523 | -3% | -$18.9K | |
| 2025-01-30 | 2024-11-18 | IOSP | BARNES CORBIN | SVP, Corp. Dev, IR | S - Sale | $117.52 | -307 | 8,051 | -4% | -$36.1K | |
| D | 2024-11-25 | 2024-11-22 | IOSP | Poccia Claudia | Dir | S - Sale+OE | $119.88 | -300 | 3,879 | -7% | -$36.0K |
| D | 2024-11-25 | 2024-11-22 | IOSP | Poccia Claudia | Dir | M - OptEx | $99.85 | +300 | 4,179 | +8% | +$30.0K |
| D | 2024-11-14 | 2024-11-13 | IOSP | Blackmore Milton C | Dir | S - Sale+OE | $122.92 | -1,035 | 9,028 | -10% | -$127.2K |
| D | 2024-11-14 | 2024-11-13 | IOSP | Blackmore Milton C | Dir | M - OptEx | $43.95 | +1,035 | 10.1K | +11% | +$45.5K |
| M | 2024-08-27 | 2024-08-23+ | IOSP | Cleminson Ian | VP, CFO | S - Sale | $113.99 | -10.0K | 13.0K | -43% | -$1.14M |
| 2024-08-14 | 2024-08-13 | IOSP | PARRETTE LESLIE J | Dir | P - Purchase | $105.84 | +143 | 4,734 | +3% | +$15.1K | |
| 2024-05-22 | 2024-05-20 | IOSP | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | S - Sale | $129.78 | -525 | 4,523 | -10% | -$68.1K | |
| 2024-05-20 | 2024-05-16 | IOSP | PARRETTE LESLIE J | Dir | P - Purchase | $131.57 | +189 | 4,591 | +4% | +$24.9K | |
| 2024-05-16 | 2024-05-14 | IOSP | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | F - Tax | $128.82 | -989 | 5,048 | -16% | -$127.4K | |
| 2024-05-16 | 2024-05-14 | IOSP | BARNES CORBIN | SVP, Corp. Dev, IR | F - Tax | $128.82 | -1,110 | 8,051 | -12% | -$143.0K | |
| 2024-03-06 | 2024-03-01 | IOSP | Jones David B. | SVP, GC, CCO | S - Sale | $125.79 | -2,500 | 9,664 | -21% | -$314.5K | |
| D | 2024-03-01 | 2024-02-29 | IOSP | Williams Patrick | Pres, CEO | S - Sale+OE | $124.21 | -3,955 | 167.2K | -2% | -$491.3K |
| D | 2024-03-01 | 2024-02-29 | IOSP | Williams Patrick | Pres, CEO | M - OptEx | $99.85 | +3,955 | 171.2K | +2% | +$394.9K |
| D | 2024-03-01 | 2024-02-29 | IOSP | Cleminson Ian | VP, CFO | M - OptEx | $99.85 | +931 | 23.9K | +4% | +$93.0K |
| D | 2024-03-01 | 2024-02-29 | IOSP | Cleminson Ian | VP, CFO | S - Sale+OE | $124.07 | -931 | 23.0K | -4% | -$115.5K |
| 2024-02-28 | 2024-02-26 | IOSP | LANDLESS DAVID | Dir | A - Grant | $0.00 | +782 | 5,784 | +16% | $0 | |
| 2024-02-28 | 2024-02-26 | IOSP | Poccia Claudia | Dir | A - Grant | $0.00 | +782 | 3,879 | +25% | $0 | |
| M | 2024-02-28 | 2024-02-27 | IOSP | Williams Patrick | Pres, CEO | S - Sale | $124.47 | -9,667 | 167.2K | -5% | -$1.20M |
| 2024-02-28 | 2024-02-26 | IOSP | Williams Patrick | Pres, CEO | A - Grant | $0.00 | +12.2K | 176.9K | +7% | $0 | |
| 2024-02-28 | 2024-02-26 | IOSP | PARRETTE LESLIE J | Dir | A - Grant | $0.00 | +782 | 4,402 | +22% | $0 | |
| 2024-02-28 | 2024-02-26 | IOSP | Blackmore Milton C | Dir | A - Grant | $0.00 | +782 | 9,028 | +9% | $0 | |
| 2024-02-28 | 2024-02-26 | IOSP | PALLER Robert I | Dir | A - Grant | $0.00 | +782 | 14.3K | +6% | $0 | |
| 2024-02-28 | 2024-02-26 | IOSP | Arnold Elizabeth K | Dir | A - Grant | $0.00 | +782 | 3,628 | +27% | $0 | |
| 2024-02-28 | 2024-02-26 | IOSP | BARNES CORBIN | SVP, Corp. Dev, IR | A - Grant | $0.00 | +1,306 | 9,161 | +17% | $0 | |
| 2024-02-28 | 2024-02-26 | IOSP | Cleminson Ian | VP, CFO | A - Grant | $0.00 | +1,999 | 23.0K | +10% | $0 | |
| 2024-02-28 | 2024-02-26 | IOSP | GRIFFIN HARDY LOUIS III | SVP, HUMAN RESOURCES | A - Grant | $0.00 | +1,037 | 6,037 | +21% | $0 | |
| 2024-02-28 | 2024-02-26 | IOSP | Jones David B. | SVP, GC, CCO | A - Grant | $0.00 | +1,533 | 12.2K | +14% | $0 |
Purchase Sale Sale after option exercise All abbreviations