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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.

Individual transactions

80
Insider
Date
Role
Action
Shares
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
PARRETTE LESLIE J
13 May 2025
Director
Sell
176
$90.68
$15.96K
PARRETTE LESLIE J
13 May 2025
Director
Sell
270
$90.60
$24.46K
Cleminson Ian
3 Mar 2025
EVP & CFO
Sell
4,275
$100.98
$431.68K
Blackmore Milton C
21 Feb 2025
Director
Sell
652
$103.30
$67.35K
Jones David B.
21 Feb 2025
SVP, GC & CCO
Sell
3,091
$103.30
$319.30K
BARNES CORBIN
21 Feb 2025
SVP, Corporate Dev and IR
Sell
2,692
$103.30
$278.09K
BOON PHILIP JOHN
21 Feb 2025
Executive VP Business Ops
Sell
3,754
$103.30
$387.79K
PADFIELD Larry
21 Feb 2025
Director
Sell
196
$103.30
$20.25K
BARNES CORBIN
18 Nov 2024
SVP, Corporate Dev and IR
Sell
307
$117.52
$36.08K
GRIFFIN HARDY LOUIS III
18 Nov 2024
SVP, HUMAN RESOURCES
Sell
161
$117.52
$18.92K
Cleminson Ian
26 Aug 2024
VP & CFO
Sell
200
$116.05
$23.21K
Cleminson Ian
26 Aug 2024
VP & CFO
Sell
1,209
$115.24
$139.33K
Cleminson Ian
26 Aug 2024
VP & CFO
Sell
1,989
$114.31
$227.36K
Cleminson Ian
23 Aug 2024
VP & CFO
Sell
6,602
$113.60
$749.99K
GRIFFIN HARDY LOUIS III
20 May 2024
SVP, HUMAN RESOURCES
Sell
525
$129.78
$68.13K
Jones David B.
1 Mar 2024
SVP, GC & CCO
Sell
2,500
$125.79
$314.48K
Williams Patrick
27 Feb 2024
PRESIDENT & CEO
Sell
5,572
$124.73
$694.97K
Williams Patrick
27 Feb 2024
PRESIDENT & CEO
Sell
4,095
$124.12
$508.29K
Williams Patrick
26 Feb 2024
PRESIDENT & CEO
Sell
100
$126.05
$12.61K
Williams Patrick
26 Feb 2024
PRESIDENT & CEO
Sell
5,402
$125.27
$676.70K
Williams Patrick
26 Feb 2024
PRESIDENT & CEO
Sell
4,165
$124.65
$519.15K
Williams Patrick
23 Feb 2024
PRESIDENT & CEO
Sell
11
$125.15
$1.38K
Williams Patrick
23 Feb 2024
PRESIDENT & CEO
Sell
6,899
$124.66
$860.01K
Williams Patrick
23 Feb 2024
PRESIDENT & CEO
Sell
2,757
$123.63
$340.86K
Blackmore Milton C
22 Feb 2024
Director
Sell
601
$122.07
$73.37K
BOON PHILIP JOHN
22 Feb 2024
Executive VP Business Ops
Sell
3,715
$122.07
$453.50K
GRIFFIN HARDY LOUIS III
22 Feb 2024
SVP, HUMAN RESOURCES
Sell
1,875
$122.07
$228.89K
Williams Patrick
2 Mar 2023
PRESIDENT & CEO
Sell
1,294
$109.83
$142.12K
Williams Patrick
2 Mar 2023
PRESIDENT & CEO
Sell
6,293
$109.05
$686.27K
Williams Patrick
2 Mar 2023
PRESIDENT & CEO
Sell
3,853
$108.42
$417.74K
Williams Patrick
1 Mar 2023
PRESIDENT & CEO
Sell
275
$110.90
$30.50K
Williams Patrick
1 Mar 2023
PRESIDENT & CEO
Sell
4,328
$110.06
$476.36K
Williams Patrick
1 Mar 2023
PRESIDENT & CEO
Sell
4,540
$109.28
$496.11K
Williams Patrick
28 Feb 2023
PRESIDENT & CEO
Sell
287
$111.58
$32.02K
Williams Patrick
28 Feb 2023
PRESIDENT & CEO
Sell
5,444
$110.97
$604.11K
Williams Patrick
28 Feb 2023
PRESIDENT & CEO
Sell
3,415
$110.04
$375.78K
Williams Patrick
27 Feb 2023
PRESIDENT & CEO
Sell
1,925
$111.69
$215.01K
Williams Patrick
27 Feb 2023
PRESIDENT & CEO
Sell
6,699
$111.16
$744.63K
Williams Patrick
27 Feb 2023
PRESIDENT & CEO
Sell
501
$110.06
$55.14K
Williams Patrick
27 Feb 2023
PRESIDENT & CEO
Sell
21
$108.31
$2.27K
MCROBBIE IAN MALCOLM
22 Feb 2022
Senior VP R&T
Sell
374
$99.31
$37.14K
Williams Patrick
9 Nov 2021
PRESIDENT & CEO
Sell
600
$94.04
$56.42K
Williams Patrick
9 Nov 2021
PRESIDENT & CEO
Sell
9,021
$93.56
$844.00K
Williams Patrick
9 Nov 2021
PRESIDENT & CEO
Sell
2,379
$92.56
$220.20K
Williams Patrick
10 Aug 2020
PRESIDENT & CEO
Sell
8,000
$80.27
$642.16K
Aldous Hugh
6 Dec 2019
Director
Sell indirect
3,000
$100.64
$301.92K
Watt Brian
20 Nov 2019
VP, Strat Plan & Regulatory
Sell
433
$97.21
$42.09K
Watt Brian
20 Nov 2019
VP, Strat Plan & Regulatory
Sell
2,567
$96.62
$248.02K
BOON PHILIP JOHN
15 Nov 2019
Executive VP Business Ops
Sell
1,905
$96.96
$184.71K
BOON PHILIP JOHN
15 Nov 2019
Executive VP Business Ops
Sell
4,276
$95.99
$410.45K
HESSNER CATHERINE
12 Nov 2019
Senior VP - Human Resources
Sell
5,000
$99.59
$497.95K
Cleminson Ian
8 Nov 2019
VP & CFO
Sell
2,000
$99.40
$198.80K
Watt Brian
22 Aug 2019
VP, Strat Plan & Regulatory
Sell
3,000
$84.16
$252.47K
HESSNER CATHERINE
4 Jun 2019
Senior VP - Human Resources
Sell
923
$83.97
$77.50K
HESSNER CATHERINE
4 Jun 2019
Senior VP - Human Resources
Sell
1,077
$83.35
$89.77K
Curran Philip
4 Jun 2019
Group Financial Controller
Sell
300
$83.12
$24.94K
Watt Brian
30 May 2019
VP, Strat Plan & Regulatory
Sell
31
$82.54
$2.56K
Watt Brian
30 May 2019
VP, Strat Plan & Regulatory
Sell
73
$82.53
$6.02K
Watt Brian
30 May 2019
VP, Strat Plan & Regulatory
Sell
1,896
$81.98
$155.43K
Williams Patrick
15 Mar 2019
PRESIDENT & CEO
Sell
400
$81.51
$32.60K
Williams Patrick
15 Mar 2019
PRESIDENT & CEO
Sell
11,137
$82.62
$920.09K
Williams Patrick
15 Mar 2019
PRESIDENT & CEO
Sell
2,925
$83.57
$244.45K
Williams Patrick
14 Mar 2019
PRESIDENT & CEO
Sell
392
$82.68
$32.41K
Williams Patrick
14 Mar 2019
PRESIDENT & CEO
Sell
6,133
$83.21
$510.34K
Williams Patrick
13 Mar 2019
PRESIDENT & CEO
Sell
200
$84.62
$16.92K
Williams Patrick
13 Mar 2019
PRESIDENT & CEO
Sell
4,925
$83.92
$413.32K
Williams Patrick
13 Mar 2019
PRESIDENT & CEO
Sell
1,858
$83.45
$155.05K
Williams Patrick
12 Mar 2019
PRESIDENT & CEO
Sell
217
$84.94
$18.43K
Williams Patrick
12 Mar 2019
PRESIDENT & CEO
Sell
6,813
$84.13
$573.19K
Curran Philip
8 Jun 2018
Group Financial Controller
Sell
300
$80.03
$24.01K
HESSNER CATHERINE
5 Jun 2018
Senior VP - Human Resources
Sell
2,910
$78.24
$227.68K
MCROBBIE IAN MALCOLM
31 May 2018
Senior VP R&T
Sell
5,000
$76.71
$383.57K
Watt Brian
24 May 2018
VP, Strat Plan & Regulatory
Sell
3,500
$75.32
$263.61K
BOON PHILIP JOHN
15 Mar 2018
Executive VP Business Ops
Sell
3,558
$69.69
$247.97K
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