INNOSPEC INC

Ticker: IOSP CUSIP: 45768S105 Class: Common Stock

PRINCIPAL FINANCIAL GROUP INC's Holding History (CIK: 0001126328)

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

Q4 2025

Shares 118,107 Value ($000) $9,040 Avg Close $75.03 Range $70.10 - $79.81

Q3 2025

Shares 119,935 Value ($000) $9,254 Avg Close $82.49 Range $73.21 - $89.37

Q2 2025

Shares 137,216 Value ($000) $11,538 Avg Close $86.03 Range $78.60 - $94.32

Q1 2025

Shares 132,493 Value ($000) $12,554 Avg Close $103.54 Range $91.98 - $114.58

Q4 2024

Shares 129,448 Value ($000) $14,247 Avg Close $111.62 Range $104.73 - $124.78

Q3 2024

Shares 125,072 Value ($000) $14,144 Avg Close $113.17 Range $101.07 - $129.81

Q2 2024

Shares 127,870 Value ($000) $15,803 Avg Close $121.30 Range $115.10 - $129.23

Q1 2024

Shares 133,106 Value ($000) $17,163 Avg Close $117.37 Range $110.33 - $126.78

Q4 2023

Shares 135,189 Value ($000) $16,661 Avg Close $102.52 Range $91.88 - $121.65

Q3 2023

Shares 137,145 Value ($000) $14,016 Avg Close $100.32 Range $93.27 - $107.44

Q2 2023

Shares 144,237 Value ($000) $14,487 Avg Close $95.78 Range $88.08 - $103.21

Q1 2023

Shares 149,566 Value ($000) $15,356 Avg Close $102.60 Range $90.19 - $110.59

Q4 2022

Shares 152,530 Value ($000) $15,689 Avg Close $96.50 Range $78.79 - $110.27

Q3 2022

Shares 153,794 Value ($000) $13,175 Avg Close $89.51 Range $80.19 - $98.62

Q2 2022

Shares 155,385 Value ($000) $14,885 Avg Close $91.85 Range $81.71 - $101.29

Q1 2022

Shares 165,522 Value ($000) $15,319 Avg Close $89.19 Range $83.58 - $94.67

Q4 2021

Shares 166,882 Value ($000) $15,076 Avg Close $82.93 Range $76.29 - $89.94

Q3 2021

Shares 171,016 Value ($000) $14,403 Avg Close $83.46 Range $75.85 - $90.38

Q2 2021

Shares 173,334 Value ($000) $15,706 Avg Close $92.53 Range $83.80 - $100.29

Q1 2021

Shares 191,256 Value ($000) $19,640 Avg Close $92.10 Range $80.91 - $99.72

Q4 2020

Shares 190,565 Value ($000) $17,290 Avg Close $71.95 Range $57.19 - $85.43

Q3 2020

Shares 189,312 Value ($000) $11,987 Avg Close $68.67 Range $56.85 - $78.17

Q2 2020

Shares 192,639 Value ($000) $14,881 Avg Close $67.35 Range $57.02 - $79.77

Q1 2020

Shares 202,117 Value ($000) $14,045 Avg Close $83.79 Range $52.02 - $98.93

Q4 2019

Shares 209,690 Value ($000) $21,691 Avg Close $87.47 Range $77.84 - $97.70

Q3 2019

Shares 205,929 Value ($000) $18,357 Avg Close $81.78 Range $74.31 - $88.66

Q2 2019

Shares 207,714 Value ($000) $18,952 Avg Close $76.63 Range $71.16 - $83.47

Q1 2019

Shares 207,348 Value ($000) $17,282 Avg Close $67.58 Range $51.63 - $78.46

Q4 2018

Shares 206,915 Value ($000) $12,779 Avg Close $62.18 Range $48.12 - $70.66

Q3 2018

Shares 200,325 Value ($000) $15,375 Avg Close $70.20 Range $64.67 - $74.99

Q2 2018

Shares 193,693 Value ($000) $14,827 Avg Close $67.39 Range $59.37 - $73.05

Q1 2018

Shares 190,308 Value ($000) $13,055 Avg Close $62.31 Range $55.67 - $66.49

Q4 2017

Shares 354,648 Value ($000) $25,038 Avg Close $59.54 Range $53.90 - $66.58

Q3 2017

Shares 426,095 Value ($000) $26,269 Avg Close $53.37 Range $48.20 - $59.20

Q2 2017

Shares 424,284 Value ($000) $27,812 Avg Close $57.04 Range $53.20 - $62.50

Q1 2017

Shares 196,679 Value ($000) $12,735 Avg Close $59.26 Range $51.41 - $66.19

Q4 2016

Shares 190,071 Value ($000) $13,020 Avg Close $56.82 Range $47.94 - $64.99

Q3 2016

Shares 182,691 Value ($000) $11,109 Avg Close $48.99 Range $39.67 - $53.81

Q2 2016

Shares 174,569 Value ($000) $8,029 Avg Close $41.52 Range $37.19 - $44.47

Q1 2016

Shares 170,466 Value ($000) $7,392 Avg Close $40.40 Range $36.39 - $46.84

Q4 2015

Shares 164,177 Value ($000) $8,916 Avg Close $48.12 Range $40.31 - $52.05

Q3 2015

Shares 157,302 Value ($000) $7,316 Avg Close $39.87 Range $35.73 - $44.30

Q2 2015

Shares 4,550 Value ($000) $205 Avg Close $38.87 Range $36.94 - $40.69

Q1 2015

Shares 5,134 Value ($000) $239 Avg Close $37.07 Range $33.21 - $40.57

Q4 2014

Shares 4,772 Value ($000) $204 Avg Close $35.30 Range $30.04 - $40.52

Q3 2014

Shares 6,116 Value ($000) $220 Avg Close $34.84 Range $30.82 - $37.97

Q2 2014

Shares 6,116 Value ($000) $264 Avg Close $36.87 Range $34.10 - $39.69

Q1 2014

Shares 7,290 Value ($000) $330 Avg Close $37.58 Range $34.73 - $40.51

Q4 2013

Shares 7,365 Value ($000) $340 Avg Close $38.90 Range $36.04 - $42.14

Q3 2013

Shares 6,821 Value ($000) $318 Avg Close $36.35 Range $33.62 - $39.43

Q2 2013

Shares 7,853 Value ($000) $316 Avg Close $35.20 Range $33.13 - $38.11

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	118,107	$9,040	$75.03	$70.10 - $79.81
Q3 2025	119,935	$9,254	$82.49	$73.21 - $89.37
Q2 2025	137,216	$11,538	$86.03	$78.60 - $94.32
Q1 2025	132,493	$12,554	$103.54	$91.98 - $114.58
Q4 2024	129,448	$14,247	$111.62	$104.73 - $124.78
Q3 2024	125,072	$14,144	$113.17	$101.07 - $129.81
Q2 2024	127,870	$15,803	$121.30	$115.10 - $129.23
Q1 2024	133,106	$17,163	$117.37	$110.33 - $126.78
Q4 2023	135,189	$16,661	$102.52	$91.88 - $121.65
Q3 2023	137,145	$14,016	$100.32	$93.27 - $107.44
Q2 2023	144,237	$14,487	$95.78	$88.08 - $103.21
Q1 2023	149,566	$15,356	$102.60	$90.19 - $110.59
Q4 2022	152,530	$15,689	$96.50	$78.79 - $110.27
Q3 2022	153,794	$13,175	$89.51	$80.19 - $98.62
Q2 2022	155,385	$14,885	$91.85	$81.71 - $101.29
Q1 2022	165,522	$15,319	$89.19	$83.58 - $94.67
Q4 2021	166,882	$15,076	$82.93	$76.29 - $89.94
Q3 2021	171,016	$14,403	$83.46	$75.85 - $90.38
Q2 2021	173,334	$15,706	$92.53	$83.80 - $100.29
Q1 2021	191,256	$19,640	$92.10	$80.91 - $99.72
Q4 2020	190,565	$17,290	$71.95	$57.19 - $85.43
Q3 2020	189,312	$11,987	$68.67	$56.85 - $78.17
Q2 2020	192,639	$14,881	$67.35	$57.02 - $79.77
Q1 2020	202,117	$14,045	$83.79	$52.02 - $98.93
Q4 2019	209,690	$21,691	$87.47	$77.84 - $97.70
Q3 2019	205,929	$18,357	$81.78	$74.31 - $88.66
Q2 2019	207,714	$18,952	$76.63	$71.16 - $83.47
Q1 2019	207,348	$17,282	$67.58	$51.63 - $78.46
Q4 2018	206,915	$12,779	$62.18	$48.12 - $70.66
Q3 2018	200,325	$15,375	$70.20	$64.67 - $74.99
Q2 2018	193,693	$14,827	$67.39	$59.37 - $73.05
Q1 2018	190,308	$13,055	$62.31	$55.67 - $66.49
Q4 2017	354,648	$25,038	$59.54	$53.90 - $66.58
Q3 2017	426,095	$26,269	$53.37	$48.20 - $59.20
Q2 2017	424,284	$27,812	$57.04	$53.20 - $62.50
Q1 2017	196,679	$12,735	$59.26	$51.41 - $66.19
Q4 2016	190,071	$13,020	$56.82	$47.94 - $64.99
Q3 2016	182,691	$11,109	$48.99	$39.67 - $53.81
Q2 2016	174,569	$8,029	$41.52	$37.19 - $44.47
Q1 2016	170,466	$7,392	$40.40	$36.39 - $46.84
Q4 2015	164,177	$8,916	$48.12	$40.31 - $52.05
Q3 2015	157,302	$7,316	$39.87	$35.73 - $44.30
Q2 2015	4,550	$205	$38.87	$36.94 - $40.69
Q1 2015	5,134	$239	$37.07	$33.21 - $40.57
Q4 2014	4,772	$204	$35.30	$30.04 - $40.52
Q3 2014	6,116	$220	$34.84	$30.82 - $37.97
Q2 2014	6,116	$264	$36.87	$34.10 - $39.69
Q1 2014	7,290	$330	$37.58	$34.73 - $40.51
Q4 2013	7,365	$340	$38.90	$36.04 - $42.14
Q3 2013	6,821	$318	$36.35	$33.62 - $39.43
Q2 2013	7,853	$316	$35.20	$33.13 - $38.11