David Landless

Insider

First SEC filing: Dec. 13, 2018 · Latest: Jan. 2, 2019

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.

Insider at

Insider transactions

0 buys (P) 3 sells (S) Net: $-90,950 + 50 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

50 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Feb. 27, 2026	IOSP	S	307	$76.79	$23,575	7,632 Direct	-3.87%	Disposed	20.3% (price as of 2026-08-20)
Feb. 27, 2026	IOSP	S	287	$76.30	$21,898	7,939 Direct	-3.49%	Disposed	21.0% (price as of 2026-08-20)
Feb. 27, 2026	IOSP	S	594	$76.56	$45,477	7,632 Direct	-7.22%	Disposed	20.6% (price as of 2026-08-20)
Feb. 23, 2026	IOSP	A	1,539	—	—	8,226 Direct	+23.01%	Acquired	(price as of 2026-08-20)
Feb. 24, 2025	IOSP	A	1,209	—	—	6,687 Direct	+22.07%	Acquired	(price as of 2026-08-20)
Feb. 21, 2025	IOSP	F	306	$105.07	$32,151	5,478 Direct	-5.29%	Disposed	-12.1% (price as of 2026-08-20)
Feb. 26, 2024	IOSP	A	782	—	—	5,784 Direct	+15.63%	Acquired	(price as of 2026-08-20)
Feb. 22, 2024	IOSP	F	282	$123.77	$34,903	5,002 Direct	-5.34%	Disposed	-25.4% (price as of 2026-08-20)
Feb. 27, 2023	IOSP	A	297	—	—	297 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 27, 2023	IOSP	A	594	—	—	4,031 Direct	+17.28%	Acquired	(price as of 2026-08-20)
Feb. 24, 2023	IOSP	M	627	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 24, 2023	IOSP	F	295	$110.09	$32,477	3,437 Direct	-7.90%	Disposed	-16.1% (price as of 2026-08-20)
Feb. 24, 2023	IOSP	M	627	—	—	3,732 Direct	+20.19%	Acquired	(price as of 2026-08-20)
Feb. 25, 2022	IOSP	M	740	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 25, 2022	IOSP	S	29	$97.56	$2,829	7,267 Direct	-0.40%	Disposed	-5.3% (price as of 2026-08-20)
Feb. 25, 2022	IOSP	S	319	$96.71	$30,850	7,296 Direct	-4.19%	Disposed	-4.5% (price as of 2026-08-20)
Feb. 25, 2022	IOSP	M	740	—	—	7,615 Direct	+10.76%	Acquired	(price as of 2026-08-20)
Feb. 21, 2022	IOSP	A	326	—	—	326 Direct	—	Acquired	(price as of 2026-08-20)
May 11, 2021	IOSP	M	293	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 11, 2021	IOSP	M	880	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 11, 2021	IOSP	F	138	$101.35	$13,986	3,314 Direct	-4.00%	Disposed	-8.9% (price as of 2026-08-20)
May 11, 2021	IOSP	M	293	—	—	3,452 Direct	+9.28%	Acquired	(price as of 2026-08-20)
May 11, 2021	IOSP	F	727	$101.35	$73,681	3,159 Direct	-18.71%	Disposed	-8.9% (price as of 2026-08-20)
May 11, 2021	IOSP	M	880	$68.20	$60,016	3,886 Direct	+29.27%	Acquired	35.4% (price as of 2026-08-20)
Feb. 22, 2021	IOSP	A	300	—	—	300 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 22, 2021	IOSP	A	601	—	—	601 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 21, 2021	IOSP	A	652	—	—	6,875 Direct	+10.48%	Acquired	(price as of 2026-08-20)
Feb. 25, 2020	IOSP	M	850	$70.60	$60,010	0 Direct	-100.00%	Disposed	30.8% (price as of 2026-08-20)
Feb. 25, 2020	IOSP	M	283	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 25, 2020	IOSP	F	715	$100.82	$72,086	2,405 Direct	-22.92%	Disposed	-8.4% (price as of 2026-08-20)
Feb. 25, 2020	IOSP	M	850	$70.60	$60,010	3,120 Direct	+37.44%	Acquired	30.8% (price as of 2026-08-20)
Feb. 25, 2020	IOSP	F	133	$100.82	$13,409	2,270 Direct	-5.53%	Disposed	-8.4% (price as of 2026-08-20)
Feb. 25, 2020	IOSP	M	283	—	—	2,403 Direct	+13.35%	Acquired	(price as of 2026-08-20)
Feb. 24, 2020	IOSP	A	627	—	—	627 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 24, 2020	IOSP	A	313	—	—	313 Direct	—	Acquired	(price as of 2026-08-20)
May 16, 2019	LXFR	A	2,218	—	—	2,218 Direct	—	Acquired	(price as of 2026-08-20)
May 14, 2019	LXFR	M	2,390	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 14, 2019	LXFR	F	1,113	$24.73	$27,524	9,638 Direct	-10.35%	Disposed	-30.8% (price as of 2026-08-20)
May 14, 2019	LXFR	M	2,390	—	—	10,751 Direct	+28.59%	Acquired	(price as of 2026-08-20)
May 13, 2019	IOSP	M	942	$48.28	$45,480	942 Direct	—	Acquired	91.3% (price as of 2026-08-20)
May 13, 2019	IOSP	M	1,000	—	—	1,000 Direct	—	Acquired	(price as of 2026-08-20)
May 13, 2019	IOSP	M	404	—	—	404 Direct	—	Acquired	(price as of 2026-08-20)
May 13, 2019	IOSP	M	216	$48.28	$10,428	2,120 Direct	+11.34%	Acquired	91.3% (price as of 2026-08-20)
May 13, 2019	IOSP	F	726	$85.15	$61,819	1,904 Direct	-27.60%	Disposed	8.5% (price as of 2026-08-20)
May 13, 2019	IOSP	M	1,000	—	—	1,904 Direct	+110.62%	Acquired	(price as of 2026-08-20)
May 13, 2019	IOSP	M	404	—	—	904 Direct	+80.80%	Acquired	(price as of 2026-08-20)
May 8, 2019	LXFR	S	1,250	$23.46	$29,325	8,361 Direct	-13.01%	Disposed	-27.0% (price as of 2026-08-20)
Feb. 25, 2019	IOSP	A	370	$81.07	$29,996	5,762 Direct	+6.86%	Acquired	13.9% (price as of 2026-08-20)
Feb. 25, 2019	IOSP	A	740	—	—	5,392 Direct	+15.91%	Acquired	(price as of 2026-08-20)
Feb. 20, 2018	IOSP	A	880	$68.20	$60,016	4,652 Direct	+23.33%	Acquired	35.4% (price as of 2026-08-20)
Feb. 20, 2018	IOSP	A	293	—	—	3,772 Direct	+8.42%	Acquired	(price as of 2026-08-20)
Feb. 21, 2017	IOSP	A	283	—	—	3,479 Direct	+8.85%	Acquired	(price as of 2026-08-20)
Feb. 21, 2017	IOSP	A	850	$70.60	$60,010	3,196 Direct	+36.23%	Acquired	30.8% (price as of 2026-08-20)
May 5, 2016	IOSP	A	1,000	—	—	2,346 Direct	+74.29%	Acquired	(price as of 2026-08-20)
May 5, 2016	IOSP	A	404	—	—	1,346 Direct	+42.89%	Acquired	(price as of 2026-08-20)
May 5, 2016	IOSP	A	942	$48.28	$45,480	942 Direct	—	Acquired	91.3% (price as of 2026-08-20)

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. 27, 2023	IOSP	Stock Option	Common Stock (297)	$109.42	Feb. 27, 2033	297	Acquired
Feb. 24, 2023	IOSP	Stock Option	Common Stock (627)	$0.00	Feb. 24, 2023	627	Disposed
Feb. 25, 2022	IOSP	Stock Option	Common Stock (740)	$0.00	Feb. 25, 2022	740	Disposed
Feb. 21, 2022	IOSP	Stock Option	Common Stock (326)	$99.68	Feb. 21, 2032	326	Acquired
May 11, 2021	IOSP	Stock Option	Common Stock (293)	$0.00	Feb. 20, 2028	293	Disposed
May 11, 2021	IOSP	Stock Option	Common Stock (880)	$68.20	Feb. 20, 2028	880	Disposed
Feb. 22, 2021	IOSP	stock option	Common Stock (300)	$99.85	Feb. 22, 2031	300	Acquired
Feb. 22, 2021	IOSP	stock option	Common Stock (601)	$0.00	Feb. 22, 2024	601	Acquired
Feb. 25, 2020	IOSP	stock option	Common Stock (850)	$70.60	Feb. 21, 2027	850	Disposed
Feb. 25, 2020	IOSP	Stock Option	Common Stock (283)	$0.00	Feb. 21, 2027	283	Disposed
Feb. 24, 2020	IOSP	stock option	stock option (627)	$0.00	Feb. 24, 2023	627	Acquired
Feb. 24, 2020	IOSP	Stock Option	stock option (313)	$95.70	Feb. 24, 2030	313	Acquired
May 16, 2019	LXFR	Restricted Stock Units	Ordinary Shares (2,218)	—	—	2,218	Acquired
May 14, 2019	LXFR	Restricted Stock Units	Common Stock (2,390)	—	—	2,390	Disposed
May 13, 2019	IOSP	Stock Options [F2]	Common Stock (942)	$48.28	May 5, 2026	942	Acquired
May 13, 2019	IOSP	Stock Options [F2]	Common Stock (1,000)	$0.00	May 5, 2026	1,000	Acquired
May 13, 2019	IOSP	Stock Options [F2]	Common Stock (404)	$0.00	May 5, 2026	404	Acquired
Feb. 25, 2019	IOSP	Stock Options	Common Stock (370)	$81.07	Feb. 25, 2029	370	Acquired
Feb. 25, 2019	IOSP	Stock Options	Common Stock (740)	$0.00	Feb. 25, 2029	740	Acquired
Feb. 20, 2018	IOSP	Stock Option	Common Stock (880)	$68.20	Feb. 20, 2028	880	Acquired
Feb. 20, 2018	IOSP	Stock Option	Common Stock (293)	$0.00	Feb. 20, 2028	293	Acquired
Feb. 21, 2017	IOSP	Stock Options	Common Stock (283)	$0.00	Feb. 21, 2027	283	Acquired
Feb. 21, 2017	IOSP	Stock Options	Common Stock (850)	$70.60	Feb. 21, 2027	850	Acquired
May 5, 2016	IOSP	Stock Option	Common Stock (1,000)	$0.00	May 5, 2026	1,000	Acquired
May 5, 2016	IOSP	Stock Option	Common Stock (404)	$0.00	May 5, 2026	404	Acquired
May 5, 2016	IOSP	Stock Option	Common Stock (942)	$48.28	May 5, 2026	942	Acquired

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

Initial ownership (Form 3) 3 holdings

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

Date	Ticker	Security	Shares	Ownership
Jan. 2, 2019	LXFR	Ordinary Shares	9,507	Direct
Jan. 2, 2019	LXFR	Restricted Stock Units→ Ordinary Shares (2,363)	2,363	Direct
Feb. 19, 2016	IOSP	Common Stock	0	Direct