Ian Cleminson

Insider

First SEC filing: July 6, 2006 · Latest: July 6, 2006

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.
Compensation Executive pay disclosed in company proxy statements.

Insider at

IOSP selling Feb. 27, 2026

Insider transactions

0 buys (P) 3 sells (S) Net: $-364,410 + 68 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

68 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Feb. 27, 2026	IOSP	S	1,231	$76.79	$94,528	20,357 Direct	-5.70%	Disposed	21.7% (price as of 2026-08-21)
Feb. 27, 2026	IOSP	S	1,149	$76.30	$87,669	21,588 Direct	-5.05%	Disposed	22.5% (price as of 2026-08-21)
Feb. 27, 2026	IOSP	S	2,380	$76.56	$182,213	20,357 Direct	-10.47%	Disposed	22.1% (price as of 2026-08-21)
Feb. 23, 2026	IOSP	A	4,499	—	—	22,737 Direct	+24.67%	Acquired	(price as of 2026-08-21)
Feb. 16, 2026	IOSP	A	2,380	—	—	18,238 Direct	+15.01%	Acquired	(price as of 2026-08-21)
March 3, 2025	IOSP	S	4,275	$100.98	$431,690	15,858 Direct	-21.23%	Disposed	-7.5% (price as of 2026-08-21)
Feb. 24, 2025	IOSP	A	2,862	—	—	20,133 Direct	+16.57%	Acquired	(price as of 2026-08-21)
Feb. 21, 2025	IOSP	A	4,275	—	—	17,271 Direct	+32.89%	Acquired	(price as of 2026-08-21)
Aug. 26, 2024	IOSP	S	200	$116.05	$23,210	12,996 Direct	-1.52%	Disposed	-19.5% (price as of 2026-08-21)
Aug. 26, 2024	IOSP	S	1,209	$115.24	$139,325	13,196 Direct	-8.39%	Disposed	-18.9% (price as of 2026-08-21)
Aug. 26, 2024	IOSP	S	1,989	$114.31	$227,363	14,405 Direct	-12.13%	Disposed	-18.2% (price as of 2026-08-21)
Aug. 23, 2024	IOSP	S	6,602	$113.60	$749,987	16,394 Direct	-28.71%	Disposed	-17.7% (price as of 2026-08-21)
Feb. 29, 2024	IOSP	M	931	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 29, 2024	IOSP	S	931	$124.07	$115,509	22,996 Direct	-3.89%	Disposed	-24.7% (price as of 2026-08-21)
Feb. 29, 2024	IOSP	M	931	$99.85	$92,960	23,927 Direct	+4.05%	Acquired	-6.4% (price as of 2026-08-21)
Feb. 26, 2024	IOSP	A	1,999	—	—	22,996 Direct	+9.52%	Acquired	(price as of 2026-08-21)
Feb. 22, 2024	IOSP	M	311	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 22, 2024	IOSP	S	4,190	$123.77	$518,596	20,997 Direct	-16.64%	Disposed	-24.5% (price as of 2026-08-21)
Feb. 22, 2024	IOSP	A	4,190	—	—	25,187 Direct	+19.96%	Acquired	(price as of 2026-08-21)
Feb. 22, 2024	IOSP	D	311	$123.96	$38,552	20,997 Direct	-1.46%	Disposed	-24.6% (price as of 2026-08-21)
Feb. 22, 2024	IOSP	M	311	$99.85	$31,053	21,308 Direct	+1.48%	Acquired	-6.4% (price as of 2026-08-21)
March 6, 2023	IOSP	M	5,223	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
March 6, 2023	IOSP	S	902	$106.38	$95,955	21,268 Direct	-4.07%	Disposed	-12.2% (price as of 2026-08-21)
March 6, 2023	IOSP	S	2,787	$105.23	$293,276	22,170 Direct	-11.17%	Disposed	-11.2% (price as of 2026-08-21)
March 6, 2023	IOSP	S	1,534	$104.10	$159,689	24,957 Direct	-5.79%	Disposed	-10.2% (price as of 2026-08-21)
March 6, 2023	IOSP	M	5,223	—	—	26,491 Direct	+24.56%	Acquired	(price as of 2026-08-21)
March 6, 2023	IOSP	S	450	$106.07	$47,732	21,268 Direct	-2.07%	Disposed	-11.9% (price as of 2026-08-21)
March 6, 2023	IOSP	M	450	—	—	21,718 Direct	+2.12%	Acquired	(price as of 2026-08-21)
March 6, 2023	IOSP	S	406	$106.07	$43,064	21,268 Direct	-1.87%	Disposed	-11.9% (price as of 2026-08-21)
March 6, 2023	IOSP	M	406	—	—	21,674 Direct	+1.91%	Acquired	(price as of 2026-08-21)
Feb. 27, 2023	IOSP	A	814	—	—	814 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 27, 2023	IOSP	A	271	—	—	21,268 Direct	+1.29%	Acquired	(price as of 2026-08-21)
Feb. 24, 2023	IOSP	M	450	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 24, 2023	IOSP	M	450	—	—	0 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 24, 2023	IOSP	M	406	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 24, 2023	IOSP	M	406	—	—	0 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 24, 2023	IOSP	M	286	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 24, 2023	IOSP	D	286	$109.42	$31,294	20,997 Direct	-1.34%	Disposed	-14.6% (price as of 2026-08-21)
Feb. 24, 2023	IOSP	M	286	$95.70	$27,370	21,283 Direct	+1.36%	Acquired	-2.4% (price as of 2026-08-21)
Feb. 20, 2023	IOSP	A	5,223	—	—	0 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 25, 2022	IOSP	M	819	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 25, 2022	IOSP	M	1,216	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 25, 2022	IOSP	S	60	$97.42	$5,845	21,625 Direct	-0.28%	Disposed	-4.1% (price as of 2026-08-21)
Feb. 25, 2022	IOSP	S	759	$96.71	$73,403	21,685 Direct	-3.38%	Disposed	-3.4% (price as of 2026-08-21)
Feb. 25, 2022	IOSP	M	819	$81.07	$66,396	22,444 Direct	+3.79%	Acquired	15.3% (price as of 2026-08-21)
Feb. 25, 2022	IOSP	S	7	$97.54	$683	21,625 Direct	-0.03%	Disposed	-4.2% (price as of 2026-08-21)
Feb. 25, 2022	IOSP	S	1,209	$96.78	$117,007	21,632 Direct	-5.29%	Disposed	-3.4% (price as of 2026-08-21)
Feb. 25, 2022	IOSP	M	1,216	—	—	22,841 Direct	+5.62%	Acquired	(price as of 2026-08-21)
Feb. 21, 2022	IOSP	A	950	—	—	950 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 21, 2022	IOSP	A	317	—	—	21,625 Direct	+1.49%	Acquired	(price as of 2026-08-21)
Nov. 11, 2021	IOSP	M	374	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Nov. 11, 2021	IOSP	S	374	$93.61	$35,010	21,308 Direct	-1.72%	Disposed	-0.2% (price as of 2026-08-21)
Nov. 11, 2021	IOSP	M	374	$61.83	$23,124	21,682 Direct	+1.76%	Acquired	51.1% (price as of 2026-08-21)
May 7, 2021	IOSP	M	1,161	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
May 7, 2021	IOSP	S	291	$102.54	$29,839	21,308 Direct	-1.35%	Disposed	-8.9% (price as of 2026-08-21)
May 7, 2021	IOSP	S	870	$101.81	$88,575	21,599 Direct	-3.87%	Disposed	-8.2% (price as of 2026-08-21)
May 7, 2021	IOSP	M	1,161	$68.20	$79,180	22,469 Direct	+5.45%	Acquired	37.0% (price as of 2026-08-21)
Feb. 22, 2021	IOSP	A	311	—	—	311 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 22, 2021	IOSP	A	931	—	—	931 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 22, 2021	IOSP	A	931	—	—	931 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 22, 2021	IOSP	A	311	—	—	21,308 Direct	+1.48%	Acquired	(price as of 2026-08-21)
Feb. 24, 2020	IOSP	A	450	—	—	450 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 24, 2020	IOSP	A	3,853	—	—	3,853 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 24, 2020	IOSP	A	406	—	—	406 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 24, 2020	IOSP	M	4,081	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 24, 2020	IOSP	M	378	$70.60	$26,687	0 Direct	-100.00%	Disposed	32.4% (price as of 2026-08-21)
Feb. 24, 2020	IOSP	M	529	$70.60	$37,347	0 Direct	-100.00%	Disposed	32.4% (price as of 2026-08-21)
Feb. 24, 2020	IOSP	F	1,918	$103.43	$198,379	20,997 Direct	-8.37%	Disposed	-9.6% (price as of 2026-08-21)
Feb. 24, 2020	IOSP	S	2,163	$91.75	$198,455	22,915 Direct	-8.63%	Disposed	1.9% (price as of 2026-08-21)
Feb. 24, 2020	IOSP	M	4,081	—	—	25,078 Direct	+19.44%	Acquired	(price as of 2026-08-21)
Feb. 24, 2020	IOSP	F	314	$103.43	$32,477	20,997 Direct	-1.47%	Disposed	-9.6% (price as of 2026-08-21)
Feb. 24, 2020	IOSP	S	64	$91.75	$5,872	21,311 Direct	-0.30%	Disposed	1.9% (price as of 2026-08-21)
Feb. 24, 2020	IOSP	M	378	$70.60	$26,687	21,375 Direct	+1.80%	Acquired	32.4% (price as of 2026-08-21)
Feb. 24, 2020	IOSP	F	361	$103.43	$37,338	20,997 Direct	-1.69%	Disposed	-9.6% (price as of 2026-08-21)
Feb. 24, 2020	IOSP	S	168	$91.75	$15,414	21,358 Direct	-0.78%	Disposed	1.9% (price as of 2026-08-21)
Feb. 24, 2020	IOSP	M	529	$70.60	$37,347	21,526 Direct	+2.52%	Acquired	32.4% (price as of 2026-08-21)
Nov. 8, 2019	IOSP	S	2,000	$99.40	$198,800	20,997 Direct	-8.70%	Disposed	-6.0% (price as of 2026-08-21)
Feb. 25, 2019	IOSP	A	819	$81.07	$66,396	15,877 Direct	+5.44%	Acquired	15.3% (price as of 2026-08-21)
Feb. 25, 2019	IOSP	A	3,686	—	—	15,058 Direct	+32.41%	Acquired	(price as of 2026-08-21)
Feb. 22, 2019	IOSP	M	1,349	$44.18	$59,599	11,372 Direct	-10.60%	Disposed	111.5% (price as of 2026-08-21)
Feb. 22, 2019	IOSP	M	3,710	—	—	12,721 Direct	-22.58%	Disposed	(price as of 2026-08-21)
Feb. 22, 2019	IOSP	S	1,349	$80.51	$108,608	22,997 Direct	-5.54%	Disposed	16.1% (price as of 2026-08-21)
Feb. 22, 2019	IOSP	M	1,349	$44.18	$59,599	24,346 Direct	+5.87%	Acquired	111.5% (price as of 2026-08-21)
Feb. 22, 2019	IOSP	S	3,710	$80.51	$298,692	22,997 Direct	-13.89%	Disposed	16.1% (price as of 2026-08-21)
Feb. 22, 2019	IOSP	M	3,710	—	—	26,707 Direct	+16.13%	Acquired	(price as of 2026-08-21)
Feb. 23, 2018	IOSP	M	1,677	$43.95	$73,704	16,431 Direct	-9.26%	Disposed	112.6% (price as of 2026-08-21)
Feb. 23, 2018	IOSP	M	3,688	—	—	18,108 Direct	-16.92%	Disposed	(price as of 2026-08-21)
Feb. 23, 2018	IOSP	S	307	$68.55	$21,045	22,997 Direct	-1.32%	Disposed	36.3% (price as of 2026-08-21)
Feb. 23, 2018	IOSP	F	1,370	$67.18	$92,037	23,304 Direct	-5.55%	Disposed	39.1% (price as of 2026-08-21)
Feb. 23, 2018	IOSP	M	1,677	$43.95	$73,704	24,674 Direct	+7.29%	Acquired	112.6% (price as of 2026-08-21)
Feb. 23, 2018	IOSP	S	1,954	$68.55	$133,947	22,997 Direct	-7.83%	Disposed	36.3% (price as of 2026-08-21)
Feb. 23, 2018	IOSP	F	1,734	$67.18	$116,490	24,951 Direct	-6.50%	Disposed	39.1% (price as of 2026-08-21)
Feb. 23, 2018	IOSP	M	3,688	—	—	26,685 Direct	+16.04%	Acquired	(price as of 2026-08-21)
Feb. 20, 2018	IOSP	A	5,223	—	—	22,718 Direct	+29.85%	Acquired	(price as of 2026-08-21)
Feb. 20, 2018	IOSP	A	1,161	$68.20	$79,180	17,495 Direct	+7.11%	Acquired	37.0% (price as of 2026-08-21)
Nov. 30, 2017	IOSP	S	5,000	$71.67	$358,350	22,997 Direct	-17.86%	Disposed	30.4% (price as of 2026-08-21)
Nov. 28, 2017	IOSP	M	881	$33.93	$29,892	16,334 Direct	-5.12%	Disposed	175.4% (price as of 2026-08-21)
Nov. 28, 2017	IOSP	A	881	$33.93	$29,892	17,215 Direct	+5.39%	Acquired	175.4% (price as of 2026-08-21)
Nov. 28, 2017	IOSP	G	366	—	—	27,997 Direct	-1.29%	Disposed	(price as of 2026-08-21)
Nov. 28, 2017	IOSP	S	515	$71.56	$36,853	28,363 Direct	-1.78%	Disposed	30.6% (price as of 2026-08-21)

Showing latest 100 of 236 transactions

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Feb. 29, 2024	IOSP	Employee Stock Option	Common Stock (931)	$99.85	Feb. 22, 2031	931	Disposed
Feb. 22, 2024	IOSP	Stock Appreciation Right	Common Stock (311)	$99.85	Feb. 22, 2031	311	Disposed
March 6, 2023	IOSP	Employee Stock Option	Common Stock (5,523)	$0.00	Feb. 20, 2028	5,223	Disposed
Feb. 27, 2023	IOSP	Employee stock option (right to buy)	Common Stock (814)	$109.42	Feb. 27, 2033	814	Acquired
Feb. 24, 2023	IOSP	Employee Stock Option	Common Stock (450)	$95.70	Feb. 24, 2030	450	Disposed
Feb. 24, 2023	IOSP	Employee Stock Option	Common Stock (450)	$95.70	Feb. 24, 2030	450	Acquired
Feb. 24, 2023	IOSP	Employee Stock Option	Common Stock (406)	$95.70	Feb. 24, 2030	406	Disposed
Feb. 24, 2023	IOSP	Employee Stock Option	Common Stock (406)	$95.70	Feb. 24, 2030	406	Acquired
Feb. 24, 2023	IOSP	Stock Appreciation Right	Common Stock (286)	$95.70	Feb. 24, 2030	286	Disposed
Feb. 20, 2023	IOSP	Stock Option	Common Stock (5,223)	$0.00	March 15, 2024	5,223	Acquired
Feb. 25, 2022	IOSP	Stock Option	Common Stock (819)	$81.07	Feb. 25, 2029	819	Disposed
Feb. 25, 2022	IOSP	Stock Option	Common Stock (1,216)	$0.00	Feb. 25, 2029	1,216	Disposed
Feb. 21, 2022	IOSP	Employee Stock Option	Common Stock (950)	$99.68	Feb. 21, 2032	950	Acquired
Nov. 11, 2021	IOSP	Stock Option	Common Stock (374)	$61.83	May 1, 2022	374	Disposed
May 7, 2021	IOSP	Stock Option	Common Stock (1,161)	$68.20	Feb. 20, 2028	1,161	Disposed
Feb. 22, 2021	IOSP	stock option	Common Stock (311)	$0.00	Feb. 22, 2024	311	Acquired
Feb. 22, 2021	IOSP	stock option	Common Stock (931)	$99.85	Feb. 22, 2031	931	Acquired
Feb. 22, 2021	IOSP	Stock Option	Common Stock (931)	$99.85	Feb. 22, 2031	931	Acquired
Feb. 24, 2020	IOSP	Stock Option	stock option (450)	$95.70	Feb. 24, 2030	450	Acquired
Feb. 24, 2020	IOSP	stock option	stock option (3,853)	$0.00	Feb. 24, 2023	3,853	Acquired
Feb. 24, 2020	IOSP	Stock Option	stock option (406)	$95.70	Feb. 24, 2030	406	Acquired
Feb. 24, 2020	IOSP	Stock Option	Common Stock (4,081)	$0.00	Feb. 21, 2027	4,081	Disposed
Feb. 24, 2020	IOSP	Stock Option	Common Stock (378)	$70.60	Feb. 21, 2027	378	Disposed
Feb. 24, 2020	IOSP	Stock Option	Common Stock (529)	$70.60	Feb. 21, 2027	529	Disposed
Feb. 25, 2019	IOSP	Stock Options (CSOP B)	Common Stock (819)	$81.07	Feb. 25, 2029	819	Acquired
Feb. 25, 2019	IOSP	Stock Options (PRSOP)	Common Stock (3,686)	$0.00	Feb. 25, 2029	3,686	Acquired
Feb. 22, 2019	IOSP	Stock Options (CSOP B)	Common Stock (1,349)	$44.18	Feb. 22, 2026	1,349	Disposed
Feb. 22, 2019	IOSP	Stock Options (PRSOP)	Common Stock (3,710)	$0.00	Feb. 22, 2026	3,710	Disposed
Feb. 23, 2018	IOSP	Stock Options	Common Stock (1,677)	$43.95	Feb. 23, 2025	1,677	Disposed
Feb. 23, 2018	IOSP	Stock Options	Common Stock (3,688)	$0.00	Feb. 23, 2025	3,688	Disposed
Feb. 20, 2018	IOSP	Stock Option	Common Stock (5,223)	$0.00	Feb. 20, 2028	5,223	Acquired
Feb. 20, 2018	IOSP	Stock Option	Common Stock (1,161)	$68.20	Feb. 20, 2028	1,161	Acquired
Nov. 28, 2017	IOSP	Stock Option	Common Stock (881)	$33.93	May 15, 2018	881	Disposed
Nov. 28, 2017	IOSP	Stock Option	Common Stock (881)	$33.93	May 15, 2018	881	Acquired
Feb. 21, 2017	IOSP	Stock Option	Common Stock (378)	$70.60	Feb. 21, 2027	378	Acquired
Feb. 21, 2017	IOSP	Stock Option	Common Stock (529)	$70.60	Feb. 21, 2027	529	Acquired
Feb. 21, 2017	IOSP	Stock Option	Common Stock (4,081)	$0.00	Feb. 21, 2027	4,081	Acquired
Feb. 17, 2017	IOSP	Stock Options	Common Stock (1,684)	$46.03	Feb. 14, 2024	1,684	Disposed
Feb. 17, 2017	IOSP	Stock Options	Common Stock (3,473)	$0.00	Feb. 14, 2024	3,473	Disposed
Feb. 23, 2016	IOSP	Stock Options	Common Stock (4,615)	$0.00	Feb. 20, 2025	4,615	Disposed
Feb. 23, 2016	IOSP	Stock Options	Common Stock (559)	$41.31	Feb. 20, 2025	559	Disposed
Feb. 23, 2016	IOSP	Stock Options	Common Stock (1,119)	$41.31	Feb. 20, 2025	1,119	Disposed
Feb. 22, 2016	IOSP	Stock Options	Common Stock (3,710)	$0.00	Feb. 22, 2026	3,710	Acquired
Feb. 22, 2016	IOSP	Stock Options	Common Stock (1,349)	$44.18	Feb. 22, 2026	1,349	Acquired
Feb. 24, 2015	IOSP	Stock Options	Common Stock (5,249)	$0.00	Feb. 23, 2022	5,249	Disposed
Feb. 24, 2015	IOSP	Stock Options	Common Stock (1,909)	$29.56	Feb. 23, 2022	1,909	Disposed
Feb. 24, 2015	IOSP	Stock Options	Common Stock (5,249)	$0.00	Feb. 23, 2022	5,249	Disposed
Feb. 24, 2015	IOSP	Stock Options	Common Stock (1,909)	$29.56	Feb. 23, 2022	1,909	Disposed
Feb. 23, 2015	IOSP	Stock Options	Common Stock (848)	$0.00	Feb. 23, 2022	848	Disposed
Feb. 23, 2015	IOSP	Stock Options	Common Stock (4,610)	$0.00	Feb. 23, 2025	4,610	Acquired
Feb. 23, 2015	IOSP	Stock Options	Common Stock (1,677)	$43.95	Feb. 23, 2025	1,677	Acquired
Feb. 23, 2015	IOSP	Stock Options	Common Stock (848)	$0.00	Feb. 23, 2022	848	Disposed
Feb. 23, 2015	IOSP	Stock Options	Common Stock (4,610)	$0.00	Feb. 23, 2025	4,610	Acquired
Feb. 23, 2015	IOSP	Stock Options	Common Stock (1,677)	$43.95	Feb. 23, 2025	1,677	Acquired
Feb. 25, 2014	IOSP	Stock Options (Co-Invest)	Common Stock (942)	$0.00	Feb. 25, 2021	942	Disposed
Feb. 18, 2014	IOSP	Stock Option (PRSOP 2009)	Common Stock (10,000)	$0.00	Sept. 1, 2019	10,000	Disposed
Feb. 18, 2014	IOSP	Stock Option (SAYE 2010)	Common Stock (1,248)	$11.73	May 31, 2014	1,248	Disposed
Feb. 18, 2014	IOSP	Stock Option (SAYE 2010)	Common Stock (1,248)	$11.73	May 31, 2014	1,248	Acquired
Feb. 14, 2014	IOSP	Stock Options (PRSOP)	Common Stock (4,630)	$0.00	Feb. 14, 2024	4,630	Acquired
Feb. 14, 2014	IOSP	Stock Options (CSOP B)	Common Stock (1,684)	$46.03	Feb. 14, 2024	1,684	Acquired
Feb. 26, 2013	IOSP	Stock Options	Common Stock (2,375)	$0.00	Feb. 25, 2020	2,375	Disposed
Feb. 20, 2013	IOSP	Stock Options (PRSOP)	Common Stock (4,615)	$41.31	Feb. 20, 2023	4,615	Acquired
Feb. 20, 2013	IOSP	Stock Options (CSOP B)	Common Stock (559)	$41.31	Feb. 20, 2023	559	Acquired
Feb. 20, 2013	IOSP	Stock Options (CSOP A)	Common Stock (1,119)	$41.31	Feb. 20, 2023	1,119	Acquired
Feb. 19, 2013	IOSP	Stock Option (CSOP B)	Common Stock (3,213)	$10.38	Feb. 17, 2020	3,213	Disposed
Feb. 19, 2013	IOSP	Stock Option (PRSOP)	Common Stock (12,291)	$0.00	Feb. 17, 2020	12,291	Disposed
Feb. 19, 2013	IOSP	Stock Option (PRSOP)	Common Stock (10,000)	$0.00	Sept. 1, 2019	10,000	Disposed
May 10, 2012	IOSP	Stock Options	Common Stock (2)	$4.62	March 24, 2019	2	Disposed
May 10, 2012	IOSP	Stock Options	Common Stock (4,102)	$4.62	March 24, 2019	4,102	Disposed
May 10, 2012	IOSP	Stock Options	Common Stock (11,285)	$0.00	March 24, 2019	11,285	Disposed
May 10, 2012	IOSP	Stock Options	Common Stock (2)	$4.62	March 24, 2019	2	Disposed
May 10, 2012	IOSP	Stock Options	Common Stock (4,102)	$4.62	March 24, 2019	4,102	Disposed
May 10, 2012	IOSP	Stock Options	Common Stock (11,285)	$0.00	March 24, 2019	11,285	Disposed
Feb. 23, 2012	IOSP	Stock Options	Common Stock (5,249)	$0.00	Feb. 23, 2022	5,249	Acquired
Feb. 23, 2012	IOSP	Stock Options	Common Stock (1,909)	$29.56	Feb. 23, 2022	1,909	Acquired
Feb. 23, 2012	IOSP	Stock Options	Common Stock (848)	$0.00	Feb. 23, 2022	848	Acquired
May 12, 2011	IOSP	Stock Options	Common stock (1,354)	$27.08	Feb. 21, 2017	1,354	Disposed
March 1, 2011	IOSP	Stock Options	Common Stock (3,300)	$0.00	March 1, 2018	3,300	Disposed
Feb. 25, 2011	IOSP	Stock Options	Common Stock (942)	$0.00	Feb. 25, 2021	942	Acquired
Feb. 24, 2011	IOSP	Stock Options	Common Stock (2,776)	$20.23	Feb. 20, 2018	2,776	Disposed
Feb. 24, 2011	IOSP	Stock Options	Common Stock (1,082)	$20.23	Feb. 20, 2018	1,082	Disposed
Feb. 22, 2011	IOSP	Options	Common Stock (1,070)	$0.00	Feb. 20, 2016	2,653	Disposed
Feb. 22, 2011	IOSP	Options	Common Stock (1,070)	$0.00	Feb. 20, 2016	1,070	Disposed
Feb. 22, 2011	IOSP	Options	Common Stock (2,653)	$0.00	Feb. 20, 2018	2,653	Disposed
Feb. 22, 2011	IOSP	Options	Common Stock (1,070)	$0.00	Feb. 13, 2016	1,070	Disposed
Aug. 6, 2010	IOSP	OPTIONS	COMMON STOCK (10,000)	$0.00	July 5, 2016	10,000	Acquired
March 12, 2010	IOSP	Options	Common Stock (200)	$0.00	March 12, 2017	200	Disposed
March 5, 2010	IOSP	Options	Common Stock (352)	$0.00	March 5, 2017	352	Disposed
Feb. 25, 2010	IOSP	Options	Common Stock (2,375)	$0.00	Feb. 25, 2020	2,375	Acquired
Feb. 17, 2010	IOSP	Options	Common Stock (12,291)	$0.00	Feb. 17, 2020	12,291	Acquired
Feb. 17, 2010	IOSP	Options	Common Stock (3,213)	$10.38	Feb. 17, 2020	3,213	Acquired
Sept. 1, 2009	IOSP	Options	Common Stock (10,000)	$0.00	Sept. 1, 2019	10,000	Acquired
Sept. 1, 2009	IOSP	Options	Common Stock (10,000)	$0.00	Sept. 1, 2019	10,000	Acquired
March 24, 2009	IOSP	Options	Common Stock (11,285)	$0.00	March 24, 2019	11,285	Acquired
March 24, 2009	IOSP	Options	Common Stock (4,102)	$4.62	March 24, 2019	4,102	Acquired
March 24, 2009	IOSP	Options	Common Stock (2)	$4.62	March 24, 2019	2	Acquired
March 1, 2008	IOSP	Options	Common Stock (3,300)	$0.00	March 1, 2018	3,300	Acquired
Feb. 20, 2008	IOSP	Options	Common Stock (10,611)	$0.00	Feb. 20, 2018	10,611	Disposed
Feb. 20, 2008	IOSP	Options	Common Stock (2,776)	$20.23	Feb. 20, 2018	2,776	Disposed
Feb. 20, 2008	IOSP	Options	Common Stock (1,082)	$20.23	Feb. 20, 2018	1,082	Disposed

Showing latest 100 of 106 transactions

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 4 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
July 6, 2006	IOSP	OPTIONS→ COMMON STOCK (170)	170	Direct
July 6, 2006	IOSP	OPTIONS→ COMMON STOCK (240)	240	Direct
July 6, 2006	IOSP	OPTIONS→ COMMON STOCK (535)	535	Direct
July 6, 2006	IOSP	OPTIONS→ COMMON STOCK (5,000)	5,000	Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

IOSP

CFO

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2021	$422,265	—	—	—	$489,490	—	$116,853	$1,852,913
2020	$402,156	$103,102	—	—	$750,000	—	$112,125	$1,785,894
2019	$383,893	—	—	—	$368,695	—	$107,776	$1,235,139

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.