Insider trading

Period: 120 months Stock: IOSP Role: Other officers × + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

59 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

59 decisions over 120 months Remove this filter
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

59 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

59 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
59 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
59 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

59 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
3 Mar 2026
Jones David B. SVP, GC & CCO
Sold at will
$77.76K 1,028 at 75.64
6.5%
Not planned
24 Feb 2025
BARNES CORBIN SVP, Corporate Dev and IR
Sold at will
$61.63K 598 at 103.06
6.9%
Not planned
21 Feb 2025
BOON PHILIP JOHN Executive VP Business Ops
Sold at will
$387.79K 3,754 at 103.30
15.8%
Not planned
21 Feb 2025
Jones David B. SVP, GC & CCO
Sold at will
$319.30K 3,091 at 103.30
24.2%
Not planned
21 Feb 2025
BARNES CORBIN SVP, Corporate Dev and IR
Sold at will
$278.09K 2,692 at 103.30
25.1%
Not planned
18 Nov 2024
BARNES CORBIN SVP, Corporate Dev and IR
Sold at will
$36.08K 307 at 117.52
3.7%
Not planned
18 Nov 2024
GRIFFIN HARDY LOUIS III SVP, HUMAN RESOURCES
Sold at will
$18.92K 161 at 117.52
3.4%
Not planned
20 May 2024
GRIFFIN HARDY LOUIS III SVP, HUMAN RESOURCES
Sold at will
$68.13K 525 at 129.78
10.4%
Not planned
1 Mar 2024
Jones David B. SVP, GC & CCO
Sold at will
$314.48K 2,500 at 125.79
20.6%
Not planned
22 Feb 2024
BOON PHILIP JOHN Executive VP Business Ops
Sold at will
$453.50K 3,715 at 122.07
16.7%
Not planned
22 Feb 2024
GRIFFIN HARDY LOUIS III SVP, HUMAN RESOURCES
Sold at will
$228.89K 1,875 at 122.07
27.3%
Not planned
17 Mar 2023
BARNES CORBIN SVP, Corporate Dev and IR
Bought
$39.90K 400 at 99.75
27.6%
+28% of stake
7 Mar 2023
BOON PHILIP JOHN Executive VP Business Ops
Sold, plan not stated 2×
$685.55K 6,491 at 105.62
25.7%
7 Mar 2023
BARNES CORBIN SVP, Corporate Dev and IR
Bought
$132.50K 1,250 at 106.00
635%
First buy on file
2 Mar 2023
Jones David B. SVP, GC & CCO
Bought
$50.02K 459 at 108.98
7.6%
5 Dec 2022
Jones David B. SVP, GC & CCO
Bought
$81.21K 752 at 107.99
96.7%
First buy on file
25 Feb 2022
BOON PHILIP JOHN Executive VP Business Ops
Sold, plan not stated 5×
$145.93K 1,508 at 96.77
7.8%
22 Feb 2022
MCROBBIE IAN MALCOLM Senior VP R&T
Sold, plan not stated
$37.14K 374 at 99.31
1.0%
11 May 2021
Watt Brian VP, Strat Plan & Regulatory
Sold, plan not stated 3×
$203.72K 2,016 at 101.05
7.4%
11 May 2021
HESSNER CATHERINE Senior VP - Human Resources
Sold, plan not stated 4×
$89.62K 887 at 101.03
5.5%
10 May 2021
Watt Brian VP, Strat Plan & Regulatory
Sold, plan not stated 4×
$213.97K 2,105 at 101.65
7.7%
10 May 2021
HESSNER CATHERINE Senior VP - Human Resources
Sold, plan not stated 4×
$95.55K 940 at 101.65
5.8%
7 May 2021
Watt Brian VP, Strat Plan & Regulatory
Sold, plan not stated 8×
$724.50K 7,112 at 101.87
22.1%
7 May 2021
HESSNER CATHERINE Senior VP - Human Resources
Sold, plan not stated 5×
$505.64K 4,964 at 101.86
24.6%
2 Jun 2020
HESSNER CATHERINE Senior VP - Human Resources
Sold, plan not stated
$222.29K 2,855 at 77.86
16.0%
27 Feb 2020
Curran Philip Group Financial Controller
Sold, plan not stated 3×
$57.82K 659 at 87.75
24.3%
20 Nov 2019
Watt Brian VP, Strat Plan & Regulatory
Sold, plan not stated 2×
$290.12K 3,000 at 96.71
10.8%
15 Nov 2019
BOON PHILIP JOHN Executive VP Business Ops
Sold, plan not stated 2×
$595.16K 6,181 at 96.29
39.2%
14 Nov 2019
BOON PHILIP JOHN Executive VP Business Ops
Sold, plan not stated 4×
$2.29M 23,819 at 96.19
60.2%
Sold half or more
12 Nov 2019
HESSNER CATHERINE Senior VP - Human Resources
Sold, plan not stated
$497.95K 5,000 at 99.59
25.0%
22 Aug 2019
Watt Brian VP, Strat Plan & Regulatory
Sold, plan not stated
$252.47K 3,000 at 84.16
9.7%
4 Jun 2019
HESSNER CATHERINE Senior VP - Human Resources
Sold, plan not stated 2×
$167.27K 2,000 at 83.64
9.1%
4 Jun 2019
Curran Philip Group Financial Controller
Sold, plan not stated
$24.94K 300 at 83.12
13.1%
30 May 2019
Watt Brian VP, Strat Plan & Regulatory
Sold, plan not stated 3×
$164.02K 2,000 at 82.01
6.1%
4 Mar 2019
BOON PHILIP JOHN Executive VP Business Ops
Sold, plan not stated
$127.41K 1,528 at 83.39
4.0%
26 Feb 2019
Curran Philip Group Financial Controller
Sold, plan not stated
$61.41K 750 at 81.88
28.1%
22 Feb 2019
HESSNER CATHERINE Senior VP - Human Resources
Sold, plan not stated 2×
$345.30K 4,289 at 80.51
16.3%
8 Jun 2018
Curran Philip Group Financial Controller
Sold, plan not stated
$24.01K 300 at 80.03
13.5%
5 Jun 2018
HESSNER CATHERINE Senior VP - Human Resources
Sold, plan not stated
$227.68K 2,910 at 78.24
11.7%
31 May 2018
MCROBBIE IAN MALCOLM Senior VP R&T
Sold, plan not stated
$383.57K 5,000 at 76.71
12.2%
24 May 2018
Watt Brian VP, Strat Plan & Regulatory
Sold, plan not stated
$263.61K 3,500 at 75.32
11.7%
14 May 2018
Curran Philip Group Financial Controller
Sold, plan not stated
$147.26K 2,000 at 73.63
47.4%
15 Mar 2018
BOON PHILIP JOHN Executive VP Business Ops
Sold, plan not stated
$247.97K 3,558 at 69.69
10.3%
7 Mar 2018
Curran Philip Group Financial Controller
Sold, plan not stated 3×
$140.67K 2,048 at 68.69
48.0%
26 Feb 2018
BOON PHILIP JOHN Executive VP Business Ops
Sold, plan not stated 3×
$282.97K 4,101 at 69.00
11.7%
26 Feb 2018
HESSNER CATHERINE Senior VP - Human Resources
Sold, plan not stated
$94.31K 1,382 at 68.24
5.3%
23 Feb 2018
Williams David Earl GC & Chief Compliance Officer
Sold, plan not stated 2×
$215.35K 3,142 at 68.54
17.8%
21 Feb 2018
BOON PHILIP JOHN Executive VP Business Ops
Sold, plan not stated
$33.59K 501 at 67.04
1.4%
21 Feb 2018
MCROBBIE IAN MALCOLM Senior VP R&T
Sold, plan not stated
$26.82K 400 at 67.04
1.0%
28 Nov 2017
HESSNER CATHERINE Senior VP - Human Resources
Sold, plan not stated
$50.59K 707 at 71.56
2.7%
Showing 1–50 of 59. Page 1 of 2 Older →