INNOSPEC INC

Ticker: IOSP CUSIP: 45768S105 Class: Common Stock

MARTINGALE ASSET MANAGEMENT L P's Holding History (CIK: 0000936944)

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

Q3 2024

Shares 3,100 Value ($000) $351 Avg Close $113.17 Range $101.07 - $129.81

Q2 2024

Shares 13,207 Value ($000) $1,632 Avg Close $121.30 Range $115.10 - $129.23

Q1 2024

Shares 13,207 Value ($000) $1,703 Avg Close $117.37 Range $110.33 - $126.78

Q4 2023

Shares 13,207 Value ($000) $1,628 Avg Close $102.52 Range $91.88 - $121.65

Q3 2023

Shares 13,207 Value ($000) $1,350 Avg Close $100.32 Range $93.27 - $107.44

Q2 2023

Shares 13,207 Value ($000) $1,327 Avg Close $95.78 Range $88.08 - $103.21

Q1 2023

Shares 13,207 Value ($000) $1,356 Avg Close $102.60 Range $90.19 - $110.59

Q4 2022

Shares 13,107 Value ($000) $1,348 Avg Close $96.50 Range $78.79 - $110.27

Q3 2022

Shares 13,102 Value ($000) $1,123 Avg Close $89.51 Range $80.19 - $98.62

Q2 2022

Shares 3,302 Value ($000) $317 Avg Close $91.85 Range $81.71 - $101.29

Q3 2020

Shares 5,501 Value ($000) $349 Avg Close $68.67 Range $56.85 - $78.17

Q2 2020

Shares 11,501 Value ($000) $889 Avg Close $67.35 Range $57.02 - $79.77

Q1 2020

Shares 11,501 Value ($000) $800 Avg Close $83.79 Range $52.02 - $98.93

Q4 2019

Shares 10,501 Value ($000) $1,087 Avg Close $87.47 Range $77.84 - $97.70

Q3 2017

Shares 9,600 Value ($000) $592 Avg Close $53.37 Range $48.20 - $59.20

Q2 2017

Shares 10,400 Value ($000) $682 Avg Close $57.04 Range $53.20 - $62.50

Q1 2017

Shares 28,703 Value ($000) $1,859 Avg Close $59.26 Range $51.41 - $66.19

Q4 2016

Shares 76,915 Value ($000) $5,269 Avg Close $56.82 Range $47.94 - $64.99

Q3 2016

Shares 94,850 Value ($000) $5,768 Avg Close $48.99 Range $39.67 - $53.81

Q2 2016

Shares 43,149 Value ($000) $1,985 Avg Close $41.52 Range $37.19 - $44.47

Q1 2016

Shares 11,114 Value ($000) $482 Avg Close $40.40 Range $36.39 - $46.84

Q4 2015

Shares 29,364 Value ($000) $1,595 Avg Close $48.12 Range $40.31 - $52.05

Q3 2015

Shares 9,262 Value ($000) $431 Avg Close $39.87 Range $35.73 - $44.30

Q2 2015

Shares 39,180 Value ($000) $1,765 Avg Close $38.87 Range $36.94 - $40.69

Q1 2015

Shares 31,680 Value ($000) $1,470 Avg Close $37.07 Range $33.21 - $40.57

Q2 2013

Shares 10,307 Value ($000) $415 Avg Close $35.20 Range $33.13 - $38.11

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2024	3,100	$351	$113.17	$101.07 - $129.81
Q2 2024	13,207	$1,632	$121.30	$115.10 - $129.23
Q1 2024	13,207	$1,703	$117.37	$110.33 - $126.78
Q4 2023	13,207	$1,628	$102.52	$91.88 - $121.65
Q3 2023	13,207	$1,350	$100.32	$93.27 - $107.44
Q2 2023	13,207	$1,327	$95.78	$88.08 - $103.21
Q1 2023	13,207	$1,356	$102.60	$90.19 - $110.59
Q4 2022	13,107	$1,348	$96.50	$78.79 - $110.27
Q3 2022	13,102	$1,123	$89.51	$80.19 - $98.62
Q2 2022	3,302	$317	$91.85	$81.71 - $101.29
Q3 2020	5,501	$349	$68.67	$56.85 - $78.17
Q2 2020	11,501	$889	$67.35	$57.02 - $79.77
Q1 2020	11,501	$800	$83.79	$52.02 - $98.93
Q4 2019	10,501	$1,087	$87.47	$77.84 - $97.70
Q3 2017	9,600	$592	$53.37	$48.20 - $59.20
Q2 2017	10,400	$682	$57.04	$53.20 - $62.50
Q1 2017	28,703	$1,859	$59.26	$51.41 - $66.19
Q4 2016	76,915	$5,269	$56.82	$47.94 - $64.99
Q3 2016	94,850	$5,768	$48.99	$39.67 - $53.81
Q2 2016	43,149	$1,985	$41.52	$37.19 - $44.47
Q1 2016	11,114	$482	$40.40	$36.39 - $46.84
Q4 2015	29,364	$1,595	$48.12	$40.31 - $52.05
Q3 2015	9,262	$431	$39.87	$35.73 - $44.30
Q2 2015	39,180	$1,765	$38.87	$36.94 - $40.69
Q1 2015	31,680	$1,470	$37.07	$33.21 - $40.57
Q2 2013	10,307	$415	$35.20	$33.13 - $38.11