INNOSPEC INC

Ticker: IOSP CUSIP: 45768S105 Class: Common Stock

TWO SIGMA INVESTMENTS, LP's Holding History (CIK: 0001179392)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 159,514 Value ($000) $12,209 Avg Close $75.03 Range $70.10 - $79.81

Q3 2025

Shares 148,205 Value ($000) $11,435 Avg Close $82.49 Range $73.21 - $89.37

Q2 2025

Shares 138,239 Value ($000) $11,625 Avg Close $86.03 Range $78.60 - $94.32

Q1 2025

Shares 78,446 Value ($000) $7,433 Avg Close $103.54 Range $91.98 - $114.58

Q4 2024

Shares 13,170 Value ($000) $1,449 Avg Close $111.62 Range $104.73 - $124.78

Q3 2024

Shares 25,595 Value ($000) $2,895 Avg Close $113.17 Range $101.07 - $129.81

Q2 2024

Shares 29,983 Value ($000) $3,706 Avg Close $121.30 Range $115.10 - $129.23

Q1 2024

Shares 7,070 Value ($000) $912 Avg Close $117.37 Range $110.33 - $126.78

Q4 2023

Shares 4,851 Value ($000) $598 Avg Close $102.52 Range $91.88 - $121.65

Q3 2023

Shares 21,928 Value ($000) $2,241 Avg Close $100.32 Range $93.27 - $107.44

Q2 2023

Shares 33,487 Value ($000) $3,363 Avg Close $95.78 Range $88.08 - $103.21

Q1 2023

Shares 43,256 Value ($000) $4,441 Avg Close $102.60 Range $90.19 - $110.59

Q4 2022

Shares 12,193 Value ($000) $1,254 Avg Close $96.50 Range $78.79 - $110.27

Q3 2022

Shares 5,798 Value ($000) $497 Avg Close $89.51 Range $80.19 - $98.62

Q2 2022

Shares 2,592 Value ($000) $248 Avg Close $91.85 Range $81.71 - $101.29

Q1 2022

Shares 17,373 Value ($000) $1,608 Avg Close $89.19 Range $83.58 - $94.67

Q4 2021

Shares 32,267 Value ($000) $2,915 Avg Close $82.93 Range $76.29 - $89.94

Q3 2021

Shares 82,233 Value ($000) $6,926 Avg Close $83.46 Range $75.85 - $90.38

Q2 2021

Shares 60,032 Value ($000) $5,439 Avg Close $92.53 Range $83.80 - $100.29

Q1 2021

Shares 10,119 Value ($000) $1,039 Avg Close $92.10 Range $80.91 - $99.72

Q1 2019

Shares 4,896 Value ($000) $408 Avg Close $67.58 Range $51.63 - $78.46

Q1 2016

Shares 43,918 Value ($000) $1,904 Avg Close $40.40 Range $36.39 - $46.84

Q2 2015

Shares 17,765 Value ($000) $800 Avg Close $38.87 Range $36.94 - $40.69

Q1 2015

Shares 27,845 Value ($000) $1,292 Avg Close $37.07 Range $33.21 - $40.57

Q4 2014

Shares 36,405 Value ($000) $1,554 Avg Close $35.30 Range $30.04 - $40.52

Q2 2013

Shares 15,641 Value ($000) $628 Avg Close $35.20 Range $33.13 - $38.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	159,514	$12,209	$75.03	$70.10 - $79.81
Q3 2025	148,205	$11,435	$82.49	$73.21 - $89.37
Q2 2025	138,239	$11,625	$86.03	$78.60 - $94.32
Q1 2025	78,446	$7,433	$103.54	$91.98 - $114.58
Q4 2024	13,170	$1,449	$111.62	$104.73 - $124.78
Q3 2024	25,595	$2,895	$113.17	$101.07 - $129.81
Q2 2024	29,983	$3,706	$121.30	$115.10 - $129.23
Q1 2024	7,070	$912	$117.37	$110.33 - $126.78
Q4 2023	4,851	$598	$102.52	$91.88 - $121.65
Q3 2023	21,928	$2,241	$100.32	$93.27 - $107.44
Q2 2023	33,487	$3,363	$95.78	$88.08 - $103.21
Q1 2023	43,256	$4,441	$102.60	$90.19 - $110.59
Q4 2022	12,193	$1,254	$96.50	$78.79 - $110.27
Q3 2022	5,798	$497	$89.51	$80.19 - $98.62
Q2 2022	2,592	$248	$91.85	$81.71 - $101.29
Q1 2022	17,373	$1,608	$89.19	$83.58 - $94.67
Q4 2021	32,267	$2,915	$82.93	$76.29 - $89.94
Q3 2021	82,233	$6,926	$83.46	$75.85 - $90.38
Q2 2021	60,032	$5,439	$92.53	$83.80 - $100.29
Q1 2021	10,119	$1,039	$92.10	$80.91 - $99.72
Q1 2019	4,896	$408	$67.58	$51.63 - $78.46
Q1 2016	43,918	$1,904	$40.40	$36.39 - $46.84
Q2 2015	17,765	$800	$38.87	$36.94 - $40.69
Q1 2015	27,845	$1,292	$37.07	$33.21 - $40.57
Q4 2014	36,405	$1,554	$35.30	$30.04 - $40.52
Q2 2013	15,641	$628	$35.20	$33.13 - $38.11