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INNOSPEC INC.

IOSP Net selling
CIK 0001054905 #1939 in the set updated 18 Sep 2026
Bought (120 mo)
$543.78K
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$42.89M
$0.00 on a plan · $20.55M straight out of an exercise
Sold at will
$22.34M
84 of 248 sales
Net
−$42.34M
−$21.79M against sales at will

By person

20 insiders · 296 transactions
Insider
Role
Bought
Sold
Net
Holding
Worth
Change
Williams Patrick
PRESIDENT & CEO
$20.73M (75)
−$20.73M
231,535
$17.51M
+19.0%
BOON PHILIP JOHN
Executive VP Business Ops
$5.25M (21) scheduled
−$5.25M
20,079
$1.52M
−21.1%
Cleminson Ian
EVP & CFO
$5.12M (32) scheduled
−$5.12M
20,357
$1.54M
−24.9%
HESSNER CATHERINE
Senior VP - Human Resources
$2.81M (27) scheduled
−$2.81M
44,627
$3.38M
−22.2%
Watt Brian
VP, Strat Plan & Regulatory
$2.33M (24) scheduled
−$2.33M
25,124
$1.90M
−18.2%
MCROBBIE IAN MALCOLM
Senior VP R&T
$1.81M (9) scheduled
−$1.81M
36,679
$2.77M
−6.7%
Blackmore Milton C
Director
$24.20K (1)
$739.26K (13) scheduled
−$715.06K
13,530
$1.02M
+41.6%
ROESER Joachim
Director
$614.92K (3) scheduled
−$614.92K
5,260
$397.87K
−1.2%
Jones David B.
SVP, GC & CCO
$131.23K (2)
$711.54K (3)
−$580.31K
14,693
$1.11M
+681.1%
Curran Philip
Group Financial Controller
$579.00K (13) scheduled
−$579.00K
2,459
$186.00K
+69.4%
Aldous Hugh
Director
$473.78K (3)
−$473.78K
32,537
$2.46M
+15.3%
Williams David Earl
GC & Chief Compliance Officer
$385.97K (5) scheduled
−$385.97K
14,516
$1.10M
0.0%
GRIFFIN HARDY LOUIS III
SVP, HUMAN RESOURCES
$315.94K (3)
−$315.94K
10,161
$768.58K
+107.7%
PADFIELD Larry
Director
$249.23K (4) scheduled
−$249.23K
9,453
$715.02K
+368.2%
BARNES CORBIN
SVP, Corporate Dev and IR
$172.40K (2)
$375.80K (3)
−$203.40K
13,080
$989.34K
+163.1%
PARRETTE LESLIE J
Director
$215.95K (6)
$40.42K (2)
+$175.53K
7,376
$557.92K
PALLER Robert I
Director
$158.72K (1) scheduled
−$158.72K
14,343
$1.08M
+235.3%
Poccia Claudia
Director
$118.38K (4) scheduled
−$118.38K
6,508
$492.27K
LANDLESS DAVID
Director
$79.15K (3)
−$79.15K
7,632
$577.28K
+522.5%
Arnold Elizabeth K
Director
6,376
$482.28K
+298.5%

No percentages here. These insiders hold more than one class of share between them, and the share count on file covers one of them rather than all. Dividing the two would compare different things.

Insider
Date
Role
Action
Shares
Price
Amount
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
BARNES CORBIN
24 Feb 2025
SVP, Corporate Dev and IR
Sold after exercise
598
$103.06
$61.63K
Poccia Claudia
22 Nov 2024
Director
Sold after exercise
300
$119.88
$35.96K
Blackmore Milton C
13 Nov 2024
Director
Sold after exercise
1,035
$122.92
$127.22K
Williams Patrick
29 Feb 2024
PRESIDENT & CEO
Sold after exercise
3,955
$124.21
$491.25K
Cleminson Ian
29 Feb 2024
VP & CFO
Sold after exercise
931
$124.07
$115.51K
Cleminson Ian
22 Feb 2024
VP & CFO
Sold after exercise
4,190
$123.77
$518.60K
PADFIELD Larry
13 Nov 2023
Director
Sold after exercise
977
$101.54
$99.21K
Poccia Claudia
22 May 2023
Director
Sold after exercise
339
$99.20
$33.63K
Poccia Claudia
22 May 2023
Director
Sold after exercise
400
$99.20
$39.68K
BOON PHILIP JOHN
7 Mar 2023
Executive VP Business Ops
Sold after exercise
5,717
$105.62
$603.80K
BOON PHILIP JOHN
7 Mar 2023
Executive VP Business Ops
Sold after exercise
774
$105.62
$81.75K
Cleminson Ian
6 Mar 2023
VP & CFO
Sold after exercise
902
$106.38
$95.96K
Cleminson Ian
6 Mar 2023
VP & CFO
Sold after exercise
2,787
$105.23
$293.28K
Cleminson Ian
6 Mar 2023
VP & CFO
Sold after exercise
1,534
$104.10
$159.69K
Cleminson Ian
6 Mar 2023
VP & CFO
Sold after exercise
450
$106.07
$47.73K
Cleminson Ian
6 Mar 2023
VP & CFO
Sold after exercise
406
$106.07
$43.06K
Williams Patrick
3 Mar 2023
PRESIDENT & CEO
Sold after exercise
717
$110.92
$79.53K
Williams Patrick
3 Mar 2023
PRESIDENT & CEO
Sold after exercise
714
$109.74
$78.35K
Williams Patrick
3 Mar 2023
PRESIDENT & CEO
Sold after exercise
1,377
$108.92
$149.98K
Williams Patrick
3 Mar 2023
PRESIDENT & CEO
Sold after exercise
1,159
$108.14
$125.34K
Williams Patrick
3 Mar 2023
PRESIDENT & CEO
Sold after exercise
1,341
$110.95
$148.79K
Williams Patrick
3 Mar 2023
PRESIDENT & CEO
Sold after exercise
1,320
$109.78
$144.91K
Williams Patrick
3 Mar 2023
PRESIDENT & CEO
Sold after exercise
2,610
$108.85
$284.10K
Williams Patrick
3 Mar 2023
PRESIDENT & CEO
Sold after exercise
2,201
$108.11
$237.94K
Williams Patrick
24 Feb 2023
PRESIDENT & CEO
Sold after exercise
3,879
$109.20
$423.58K
Williams Patrick
24 Feb 2023
PRESIDENT & CEO
Sold after exercise
3,405
$108.36
$368.97K
Williams Patrick
24 Feb 2023
PRESIDENT & CEO
Sold after exercise
1,862
$107.29
$199.78K
Blackmore Milton C
25 Feb 2022
Director
Sold after exercise
74
$97.53
$7.22K
Blackmore Milton C
25 Feb 2022
Director
Sold after exercise
666
$96.69
$64.40K
LANDLESS DAVID
25 Feb 2022
Director
Sold after exercise
29
$97.56
$2.83K
LANDLESS DAVID
25 Feb 2022
Director
Sold after exercise
319
$96.71
$30.85K
BOON PHILIP JOHN
25 Feb 2022
Executive VP Business Ops
Sold after exercise
523
$96.76
$50.61K
BOON PHILIP JOHN
25 Feb 2022
Executive VP Business Ops
Sold after exercise
34
$97.49
$3.31K
BOON PHILIP JOHN
25 Feb 2022
Executive VP Business Ops
Sold after exercise
331
$96.71
$32.01K
BOON PHILIP JOHN
25 Feb 2022
Executive VP Business Ops
Sold after exercise
40
$97.42
$3.90K
BOON PHILIP JOHN
25 Feb 2022
Executive VP Business Ops
Sold after exercise
580
$96.72
$56.10K
Williams Patrick
25 Feb 2022
PRESIDENT & CEO
Sold after exercise
415
$97.47
$40.45K
Williams Patrick
25 Feb 2022
PRESIDENT & CEO
Sold after exercise
4,033
$96.69
$389.95K
Williams Patrick
25 Feb 2022
PRESIDENT & CEO
Sold after exercise
600
$97.44
$58.46K
Williams Patrick
25 Feb 2022
PRESIDENT & CEO
Sold after exercise
6,400
$96.71
$618.94K
Cleminson Ian
25 Feb 2022
VP & CFO
Sold after exercise
60
$97.42
$5.85K
Cleminson Ian
25 Feb 2022
VP & CFO
Sold after exercise
759
$96.71
$73.40K
Cleminson Ian
25 Feb 2022
VP & CFO
Sold after exercise
7
$97.54
$682.78
Cleminson Ian
25 Feb 2022
VP & CFO
Sold after exercise
1,209
$96.78
$117.01K
Cleminson Ian
11 Nov 2021
VP & CFO
Sold after exercise
374
$93.61
$35.01K
Blackmore Milton C
10 Nov 2021
Director
Sold after exercise
293
$93.70
$27.45K
Williams Patrick
11 May 2021
PRESIDENT & CEO
Sold after exercise
25
$101.81
$2.55K
Williams Patrick
11 May 2021
PRESIDENT & CEO
Sold after exercise
1,361
$101.27
$137.83K
Williams Patrick
11 May 2021
PRESIDENT & CEO
Sold after exercise
307
$100.15
$30.75K
Williams Patrick
11 May 2021
PRESIDENT & CEO
Sold after exercise
548
$101.32
$55.52K
Williams Patrick
11 May 2021
PRESIDENT & CEO
Sold after exercise
198
$100.49
$19.90K
Williams Patrick
11 May 2021
PRESIDENT & CEO
Sold after exercise
32
$99.48
$3.18K
HESSNER CATHERINE
11 May 2021
Senior VP - Human Resources
Sold after exercise
197
$101.53
$20.00K
HESSNER CATHERINE
11 May 2021
Senior VP - Human Resources
Sold after exercise
438
$101.21
$44.33K
HESSNER CATHERINE
11 May 2021
Senior VP - Human Resources
Sold after exercise
195
$100.50
$19.60K
HESSNER CATHERINE
11 May 2021
Senior VP - Human Resources
Sold after exercise
57
$99.79
$5.69K
Watt Brian
11 May 2021
VP, Strat Plan & Regulatory
Sold after exercise
48
$101.74
$4.88K
Watt Brian
11 May 2021
VP, Strat Plan & Regulatory
Sold after exercise
1,657
$101.22
$167.72K
Watt Brian
11 May 2021
VP, Strat Plan & Regulatory
Sold after exercise
311
$100.05
$31.12K
Williams Patrick
10 May 2021
PRESIDENT & CEO
Sold after exercise
438
$102.69
$44.98K
Williams Patrick
10 May 2021
PRESIDENT & CEO
Sold after exercise
921
$101.56
$93.54K
Williams Patrick
10 May 2021
PRESIDENT & CEO
Sold after exercise
378
$100.65
$38.05K
Williams Patrick
10 May 2021
PRESIDENT & CEO
Sold after exercise
173
$102.74
$17.77K
Williams Patrick
10 May 2021
PRESIDENT & CEO
Sold after exercise
267
$101.81
$27.18K
Williams Patrick
10 May 2021
PRESIDENT & CEO
Sold after exercise
352
$100.99
$35.55K
HESSNER CATHERINE
10 May 2021
Senior VP - Human Resources
Sold after exercise
51
$103.13
$5.26K
HESSNER CATHERINE
10 May 2021
Senior VP - Human Resources
Sold after exercise
219
$102.49
$22.45K
HESSNER CATHERINE
10 May 2021
Senior VP - Human Resources
Sold after exercise
263
$101.68
$26.74K
HESSNER CATHERINE
10 May 2021
Senior VP - Human Resources
Sold after exercise
407
$100.99
$41.10K
Watt Brian
10 May 2021
VP, Strat Plan & Regulatory
Sold after exercise
114
$103.13
$11.76K
Watt Brian
10 May 2021
VP, Strat Plan & Regulatory
Sold after exercise
520
$102.46
$53.28K
Watt Brian
10 May 2021
VP, Strat Plan & Regulatory
Sold after exercise
1,096
$101.49
$111.23K
Watt Brian
10 May 2021
VP, Strat Plan & Regulatory
Sold after exercise
375
$100.54
$37.70K
HESSNER CATHERINE
7 May 2021
Senior VP - Human Resources
Sold after exercise
78
$103.02
$8.04K
HESSNER CATHERINE
7 May 2021
Senior VP - Human Resources
Sold after exercise
1,461
$102.20
$149.31K
HESSNER CATHERINE
7 May 2021
Senior VP - Human Resources
Sold after exercise
775
$101.93
$79.00K
HESSNER CATHERINE
7 May 2021
Senior VP - Human Resources
Sold after exercise
954
$101.82
$97.14K
HESSNER CATHERINE
7 May 2021
Senior VP - Human Resources
Sold after exercise
1,696
$101.51
$172.16K
Cleminson Ian
7 May 2021
VP & CFO
Sold after exercise
291
$102.54
$29.84K
Cleminson Ian
7 May 2021
VP & CFO
Sold after exercise
870
$101.81
$88.57K
Williams Patrick
7 May 2021
PRESIDENT & CEO
Sold after exercise
215
$102.49
$22.04K
Williams Patrick
7 May 2021
PRESIDENT & CEO
Sold after exercise
4,355
$101.65
$442.69K
Williams Patrick
7 May 2021
PRESIDENT & CEO
Sold after exercise
242
$102.44
$24.79K
Williams Patrick
7 May 2021
PRESIDENT & CEO
Sold after exercise
3,176
$101.67
$322.90K
Watt Brian
7 May 2021
VP, Strat Plan & Regulatory
Sold after exercise
100
$103.02
$10.30K
Watt Brian
7 May 2021
VP, Strat Plan & Regulatory
Sold after exercise
1,691
$102.29
$172.97K
Watt Brian
7 May 2021
VP, Strat Plan & Regulatory
Sold after exercise
968
$101.96
$98.70K
Watt Brian
7 May 2021
VP, Strat Plan & Regulatory
Sold after exercise
2,063
$101.86
$210.14K
Watt Brian
7 May 2021
VP, Strat Plan & Regulatory
Sold after exercise
499
$101.71
$50.75K
Watt Brian
7 May 2021
VP, Strat Plan & Regulatory
Sold after exercise
136
$101.68
$13.83K
Watt Brian
7 May 2021
VP, Strat Plan & Regulatory
Sold after exercise
930
$101.49
$94.39K
Watt Brian
7 May 2021
VP, Strat Plan & Regulatory
Sold after exercise
725
$101.27
$73.42K
HESSNER CATHERINE
2 Jun 2020
Senior VP - Human Resources
Sold after exercise
2,855
$77.86
$222.29K
Curran Philip
27 Feb 2020
Group Financial Controller
Sold after exercise
70
$87.75
$6.14K
Curran Philip
27 Feb 2020
Group Financial Controller
Sold after exercise
353
$87.75
$30.97K
Curran Philip
27 Feb 2020
Group Financial Controller
Sold after exercise
236
$87.75
$20.71K
Williams Patrick
24 Feb 2020
PRESIDENT & CEO
Sold after exercise
4,589
$91.75
$421.02K
Cleminson Ian
24 Feb 2020
VP & CFO
Sold after exercise
2,163
$91.75
$198.45K
Cleminson Ian
24 Feb 2020
VP & CFO
Sold after exercise
64
$91.75
$5.87K
Cleminson Ian
24 Feb 2020
VP & CFO
Sold after exercise
168
$91.75
$15.41K
PALLER Robert I
24 Feb 2020
Director
Sold after exercise
1,730
$91.75
$158.72K
Blackmore Milton C
24 Feb 2020
Director
Sold after exercise
283
$91.75
$25.96K
BOON PHILIP JOHN
14 Nov 2019
Executive VP Business Ops
Sold after exercise
195
$97.57
$19.03K
BOON PHILIP JOHN
14 Nov 2019
Executive VP Business Ops
Sold after exercise
7,066
$96.52
$682.01K
BOON PHILIP JOHN
14 Nov 2019
Executive VP Business Ops
Sold after exercise
13,378
$95.96
$1.28M
BOON PHILIP JOHN
14 Nov 2019
Executive VP Business Ops
Sold after exercise
3,180
$96.32
$306.30K
BOON PHILIP JOHN
4 Mar 2019
Executive VP Business Ops
Sold after exercise
1,528
$83.39
$127.41K
Curran Philip
26 Feb 2019
Group Financial Controller
Sold after exercise
750
$81.88
$61.41K
Blackmore Milton C
25 Feb 2019
Director
Sold after exercise
441
$81.62
$36.00K
HESSNER CATHERINE
22 Feb 2019
Senior VP - Human Resources
Sold after exercise
1,144
$80.51
$92.10K
HESSNER CATHERINE
22 Feb 2019
Senior VP - Human Resources
Sold after exercise
3,145
$80.51
$253.20K
Cleminson Ian
22 Feb 2019
VP & CFO
Sold after exercise
1,349
$80.51
$108.60K
Cleminson Ian
22 Feb 2019
VP & CFO
Sold after exercise
3,710
$80.51
$298.68K
Williams Patrick
22 Feb 2019
PRESIDENT & CEO
Sold after exercise
1,658
$80.51
$133.48K
Williams Patrick
22 Feb 2019
PRESIDENT & CEO
Sold after exercise
1,704
$80.51
$137.18K
Blackmore Milton C
1 Jun 2018
Director
Sold after exercise
444
$76.83
$34.11K
Aldous Hugh
22 May 2018
Director
Sold after exercise
1,687
$76.72
$129.42K
Curran Philip
14 May 2018
Group Financial Controller
Sold after exercise
2,000
$73.63
$147.26K
Curran Philip
7 Mar 2018
Group Financial Controller
Sold after exercise
488
$68.24
$33.30K
Curran Philip
7 Mar 2018
Group Financial Controller
Sold after exercise
780
$68.24
$53.23K
Curran Philip
7 Mar 2018
Group Financial Controller
Sold after exercise
780
$69.40
$54.13K
HESSNER CATHERINE
26 Feb 2018
Senior VP - Human Resources
Sold after exercise
1,382
$68.24
$94.31K
BOON PHILIP JOHN
26 Feb 2018
Executive VP Business Ops
Sold after exercise
506
$69.00
$34.91K
BOON PHILIP JOHN
26 Feb 2018
Executive VP Business Ops
Sold after exercise
776
$69.00
$53.54K
BOON PHILIP JOHN
26 Feb 2018
Executive VP Business Ops
Sold after exercise
2,819
$69.00
$194.51K
Williams David Earl
23 Feb 2018
GC & Chief Compliance Officer
Sold after exercise
982
$68.54
$67.31K
Williams David Earl
23 Feb 2018
GC & Chief Compliance Officer
Sold after exercise
2,160
$68.54
$148.05K
Cleminson Ian
23 Feb 2018
VP & CFO
Sold after exercise
307
$68.55
$21.04K
Showing 250 of 296 transactions. The figures above use every one of them.

What was left out

Form 4 filings counted 325
Amendments (4/A) skipped 24
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 164
Sales at will 84
Transactions with no price 0
Shares from compensation/vesting 813,583
Sales filed before the plan box existed 51
History held since 14 Nov 2016