Stock Scorer

Innospec Inc. (IOSP) · Insider trading

What Innospec's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.

Bought, 12 months
$25,191
1 insider, 1 trade
Sold, 12 months
$574,073
6 insiders, 0% under a plan
Net, 12 months
−$548,883
bought less sold
Latest filing
2026-03-06
filings read to 2026-10-19

Bought and sold at the market, by month

Two years. Purchases above the line, sales below, in dollars.

2024-11: $218,186 sold 2025-01 2025-02: $1.13M sold 2025-03: $431,690 sold 2025-05: $40,422 sold 2025-07 2025-11: $25,191 bought 2026-01 2026-02: $496,316 sold 2026-03: $77,758 sold 2026-07
Bought Sold Largest month: $1.13M

Who traded, two years

InsiderBoughtSold TradesLast tradeHolds after
Cleminson IanEVP & CFO – $613,887 3 2026-02-27 21,588
Jones David B.SVP, GC & CCO – $397,058 2 2026-03-03 14,693
Boon Philip JohnExecutive VP Business Ops – $387,788 1 2025-02-21 20,079
Barnes CorbinSVP, Corporate Dev and IR – $375,792 3 2025-02-24 8,051
Blackmore Milton CDirector – $324,342 5 2026-02-27 10,837
Padfield LarryDirector – $150,015 4 2026-02-27 9,760
Parrette Leslie JDirector $25,191 $40,422 3 2025-11-14 5,837
Landless DavidDirector – $45,473 2 2026-02-27 7,939
Poccia ClaudiaDirector – $45,074 3 2026-02-27 6,570
Griffin Hardy Louis IIISVP, HUMAN RESOURCES – $18,921 1 2024-11-18 4,523

Open-market purchases and sales

Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.

DateInsiderTradeShares PriceValueHolds afterFiling
2026-03-03 Jones David B.SVP, GC & CCO Sale 1,028 75.64 $77,758 14,693 Form 4
2026-02-27 Cleminson IanEVP & CFO Sale 1,149 76.30 $87,669 21,588 Form 4/A
2026-02-27 Cleminson IanEVP & CFO Sale 1,231 76.79 $94,528 20,357 Form 4/A
2026-02-27 Landless DavidDirector Sale 287 76.30 $21,898 7,939 Form 4/A
2026-02-27 Landless DavidDirector Sale 307 76.79 $23,575 7,632 Form 4/A
2026-02-27 Poccia ClaudiaDirector Sale 57 76.30 $4,349 6,570 Form 4/A
2026-02-27 Poccia ClaudiaDirector Sale 62 76.79 $4,761 6,508 Form 4/A
2026-02-27 Padfield LarryDirector Sale 287 76.30 $21,898 9,760 Form 4/A
2026-02-27 Padfield LarryDirector Sale 307 76.79 $23,575 9,453 Form 4/A
2026-02-27 Blackmore Milton CDirector Sale 287 76.30 $21,898 10,837 Form 4/A
2026-02-27 Blackmore Milton CDirector Sale 307 76.79 $23,575 10,530 Form 4/A
2026-02-20 Padfield LarryDirector Sale 1,030 81.84 $84,295 8,508 Form 4
2026-02-20 Blackmore Milton CDirector Sale 1,030 81.84 $84,295 9,585 Form 4
2025-11-14 Parrette Leslie JDirector Buy 340 74.09 $25,191 5,837 Form 4
2025-05-13 Parrette Leslie JDirector Sale 270 90.60 $24,462 5,673 Form 4
2025-05-13 Parrette Leslie JDirector Sale 176 90.68 $15,960 5,497 Form 4
2025-03-03 Cleminson IanEVP & CFO Sale 4,275 100.98 $431,690 15,858 Form 4
2025-02-24 Barnes CorbinSVP, Corporate Dev and IR Sale 598 103.06 $61,630 8,051 Form 4
2025-02-21 Padfield LarryDirector Sale 196 103.30 $20,247 7,299 Form 4
2025-02-21 Blackmore Milton CDirector Sale 652 103.30 $67,352 8,376 Form 4
2025-02-21 Jones David B.SVP, GC & CCO Sale 3,091 103.30 $319,300 9,664 Form 4
2025-02-21 Barnes CorbinSVP, Corporate Dev and IR Sale 2,692 103.30 $278,084 8,051 Form 4
2025-02-21 Boon Philip JohnExecutive VP Business Ops Sale 3,754 103.30 $387,788 20,079 Form 4
2024-11-22 Poccia ClaudiaDirector Sale 300 119.88 $35,964 3,879 Form 4
2024-11-18 Barnes CorbinSVP, Corporate Dev and IR Sale 307 117.52 $36,079 8,051 Form 4
2024-11-18 Griffin Hardy Louis IIISVP, HUMAN RESOURCES Sale 161 117.52 $18,921 4,523 Form 4
2024-11-13 Blackmore Milton CDirector Sale 1,035 122.92 $127,222 9,028 Form 4

Grants, exercises and other transactions

Pay, tax and paperwork rather than a choice to trade at the market price. Two years.

33 × grant or award9 × shares withheld for tax7 × option exercise2 × small acquisition2 × returned to the company
Show them
DateInsiderWhatShares PriceHolds afterFiling
2026-02-27 Williams PatrickPRESIDENT & CEO Shares withheld for tax F −7,966 78.34 231,535 Form 4
2026-02-27 Barnes CorbinSVP, Corporate Dev and IR Shares withheld for tax F −166 78.34 13,080 Form 4
2026-02-27 Jones David B.SVP, GC & CCO Shares withheld for tax F −875 78.34 15,721 Form 4
2026-02-27 Griffin Hardy Louis IIISVP, HUMAN RESOURCES Shares withheld for tax F −401 78.34 10,161 Form 4
2026-02-23 Arnold Elizabeth KDirector Grant or award A +1,539 – 6,376 Form 4
2026-02-23 Jones David B.SVP, GC & CCO Grant or award A +2,993 – 16,596 Form 4
2026-02-23 Williams PatrickPRESIDENT & CEO Grant or award A +20,846 – 239,501 Form 4
2026-02-23 Cleminson IanEVP & CFO Grant or award A +4,499 – 22,737 Form 4
2026-02-23 Griffin Hardy Louis IIISVP, HUMAN RESOURCES Grant or award A +2,521 – 10,562 Form 4
2026-02-23 Barnes CorbinSVP, Corporate Dev and IR Grant or award A +2,481 – 13,246 Form 4
2026-02-23 Padfield LarryDirector Grant or award A +1,539 – 10,047 Form 4
2026-02-23 Blackmore Milton CDirector Grant or award A +1,539 – 11,124 Form 4
2026-02-23 Poccia ClaudiaDirector Grant or award A +1,539 – 6,627 Form 4
2026-02-23 Landless DavidDirector Grant or award A +1,539 – 8,226 Form 4
2026-02-23 Parrette Leslie JDirector Grant or award A +1,539 – 7,376 Form 4
2026-02-20 Padfield LarryDirector Option exercise M +1,030 44.18 9,538 Form 4
2026-02-20 Blackmore Milton CDirector Option exercise M +1,030 44.18 10,615 Form 4
2026-02-16 Jones David B.SVP, GC & CCO Grant or award A +1,903 – 13,603 Form 4
2026-02-16 Williams PatrickPRESIDENT & CEO Grant or award A +18,966 – 218,655 Form 4
2026-02-16 Cleminson IanEVP & CFO Grant or award A +2,380 – 18,238 Form 4
2026-02-16 Griffin Hardy Louis IIISVP, HUMAN RESOURCES Grant or award A +1,299 – 8,041 Form 4
2026-02-16 Barnes CorbinSVP, Corporate Dev and IR Grant or award A +1,730 – 10,765 Form 4
2025-11-26 Barnes CorbinSVP, Corporate Dev and IR Small acquisition L +20 74.96 9,035 Form 5
2025-05-30 Barnes CorbinSVP, Corporate Dev and IR Small acquisition L +17 85.01 9,015 Form 5
2025-05-13 Barnes CorbinSVP, Corporate Dev and IR Shares withheld for tax F −740 91.53 8,998 Form 4
2025-05-13 Griffin Hardy Louis IIISVP, HUMAN RESOURCES Shares withheld for tax F −600 91.53 6,742 Form 4
2025-03-03 Williams PatrickPRESIDENT & CEO Shares withheld for tax F −12,723 103.66 199,689 Form 4
2025-02-24 Jones David B.SVP, GC & CCO Grant or award A +2,036 – 11,700 Form 4
2025-02-24 Cleminson IanVP & CFO Grant or award A +2,862 – 20,133 Form 4
2025-02-24 Williams PatrickPRESIDENT & CEO Grant or award A +14,743 – 212,412 Form 4
2025-02-24 Arnold Elizabeth KDirector Grant or award A +1,209 – 4,837 Form 4
2025-02-24 Blackmore Milton CDirector Grant or award A +1,209 – 9,585 Form 4
2025-02-24 Landless DavidDirector Grant or award A +1,209 – 6,687 Form 4
2025-02-24 Padfield LarryDirector Grant or award A +1,209 – 8,508 Form 4
2025-02-24 Parrette Leslie JDirector Grant or award A +1,209 – 5,943 Form 4
2025-02-24 Poccia ClaudiaDirector Grant or award A +1,209 – 5,088 Form 4
2025-02-24 Griffin Hardy Louis IIISVP, HUMAN RESOURCES Grant or award A +1,682 – 7,342 Form 4
2025-02-24 Barnes CorbinSVP, Corporate Dev and IR Grant or award A +1,687 – 9,738 Form 4
2025-02-24 Barnes CorbinSVP, Corporate Dev and IR Option exercise M +598 99.68 8,649 Form 4
2025-02-21 Griffin Hardy Louis IIISVP, HUMAN RESOURCES Option exercise M +121 99.68 5,781 Form 4
2025-02-21 Griffin Hardy Louis IIISVP, HUMAN RESOURCES Returned to the company D −121 101.99 5,660 Form 4
2025-02-21 Barnes CorbinSVP, Corporate Dev and IR Option exercise M +200 99.68 8,251 Form 4
2025-02-21 Barnes CorbinSVP, Corporate Dev and IR Returned to the company D −200 101.99 8,051 Form 4
2025-02-21 Landless DavidDirector Shares withheld for tax F −306 105.07 5,478 Form 4
2025-02-21 Griffin Hardy Louis IIISVP, HUMAN RESOURCES Grant or award A +1,625 – 6,148 Form 4
2025-02-21 Griffin Hardy Louis IIISVP, HUMAN RESOURCES Shares withheld for tax F −488 105.07 5,660 Form 4
2025-02-21 Williams PatrickPRESIDENT & CEO Grant or award A +30,292 – 197,669 Form 4
2025-02-21 Cleminson IanVP & CFO Grant or award A +4,275 – 17,271 Form 4
2025-02-21 Jones David B.SVP, GC & CCO Grant or award A +3,091 – 12,755 Form 4
2025-02-21 Barnes CorbinSVP, Corporate Dev and IR Grant or award A +2,692 – 10,743 Form 4
2025-02-21 Boon Philip JohnExecutive VP Business Ops Grant or award A +3,754 – 23,833 Form 4
2024-11-22 Poccia ClaudiaDirector Option exercise M +300 99.85 4,179 Form 4
2024-11-13 Blackmore Milton CDirector Option exercise M +1,035 43.95 10,063 Form 4

How to read it

Buy, sale
Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
Plan
A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
Holds after
The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
Value
Shares times the price the form reports, which is often an average over several fills on the day.

Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.

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