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INNOSPEC INC.

IOSP Net selling

CIK 0001054905 #1939 in the set updated 18 Sep 2026

Bought (12 mo)

$25.19K

out of their own pocket, the only kind of buying there is

Sold (12 mo)

$574.10K

$0.00 on a plan · $168.59K straight out of an exercise

Sold at will

$405.50K

6 of 8 sales

Net

−$548.91K

−$380.31K against sales at will

By person

12 insiders · 9 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Cleminson Ian

EVP & CFO

—

$182.21K (1)

−$182.21K

20,357

0.0826%

$1.54M

+56.6%

Blackmore Milton C

Director

—

$129.77K (2) scheduled

−$129.77K

10,530

0.0428%

$796.49K

+16.6%

PADFIELD Larry

Director

—

$129.77K (2) scheduled

−$129.77K

9,453

0.0384%

$715.02K

+26.1%

Jones David B.

SVP, GC & CCO

—

$77.76K (1)

−$77.76K

14,693

0.0597%

$1.11M

+52.0%

LANDLESS DAVID

Director

—

$45.47K (1)

−$45.47K

7,632

0.0310%

$577.28K

+32.0%

PARRETTE LESLIE J

Director

$25.19K (1)

—

+$25.19K

7,376

0.0299%

$557.92K

+55.8%

Poccia Claudia

Director

—

$9.11K (1)

−$9.11K

6,508

0.0264%

$492.27K

+67.8%

Williams Patrick

PRESIDENT & CEO

—

231,535

0.9400%

$17.51M

+38.3%

BOON PHILIP JOHN

Executive VP Business Ops

—

20,079

0.0815%

$1.52M

0.0%

BARNES CORBIN

SVP, Corporate Dev and IR

—

13,080

0.0531%

$989.34K

+55.8%

GRIFFIN HARDY LOUIS III

SVP, HUMAN RESOURCES

—

10,161

0.0413%

$768.58K

+116.9%

Arnold Elizabeth K

Director

—

6,376

0.0259%

$482.28K

+75.7%

Individual transactions

Insider

Date

Role

Action

Price

Amount

Jones David B.

3 Mar 2026

SVP, GC & CCO

Sell

1,028

$75.64

$77.76K

Cleminson Ian

27 Feb 2026

EVP & CFO

Sell

2,380

$76.56

$182.21K

LANDLESS DAVID

27 Feb 2026

Director

Sell

594

$76.56

$45.47K

Poccia Claudia

27 Feb 2026

Director

Sell

119

$76.56

$9.11K

PADFIELD Larry

27 Feb 2026

Director

Sell

594

$76.56

$45.47K

Blackmore Milton C

27 Feb 2026

Director

Sell

594

$76.56

$45.47K

PADFIELD Larry

20 Feb 2026

Director

Sold after exercise

1,030

$81.84

$84.30K

Blackmore Milton C

20 Feb 2026

Director

Sold after exercise

1,030

$81.84

$84.30K

PARRETTE LESLIE J

14 Nov 2025

Director

Buy

340

$74.09

$25.19K

What was left out

Form 4 filings counted 28

Amendments (4/A) skipped 5

Filings about a different issuer 0

Unreadable filings 0

Joint filings 0

Sales on a Rule 10b5-1 plan 0

Sales straight out of an exercise 2

Sales at will 6

Transactions with no price 0

Shares from compensation/vesting 80,320

History held since 14 Nov 2016