INNOSPEC INC

Ticker: IOSP CUSIP: 45768S105 Class: Common Stock

Assenagon Asset Management S.A.'s Holding History (CIK: 0001546007)

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

Q4 2025
Shares 178,204 Value ($000) $13,640 Avg Close $75.03 Range $70.10 - $79.81
Q3 2025
Shares 129,397 Value ($000) $9,984 Avg Close $82.49 Range $73.21 - $89.37
Q2 2025
Shares 21,143 Value ($000) $1,778 Avg Close $86.03 Range $78.60 - $94.32
Q4 2024
Shares 24,835 Value ($000) $2,733 Avg Close $111.62 Range $104.73 - $124.78
Q3 2024
Shares 135,369 Value ($000) $15,309 Avg Close $113.17 Range $101.07 - $129.81
Q2 2024
Shares 120,082 Value ($000) $14,841 Avg Close $121.30 Range $115.10 - $129.23
Q1 2024
Shares 60,528 Value ($000) $7,804 Avg Close $117.37 Range $110.33 - $126.78
Q4 2023
Shares 20,278 Value ($000) $2,499 Avg Close $102.52 Range $91.88 - $121.65
Q3 2023
Shares 11,815 Value ($000) $1,207 Avg Close $100.32 Range $93.27 - $107.44
Q4 2022
Shares 13,626 Value ($000) $1 Avg Close $96.50 Range $78.79 - $110.27
Q3 2021
Shares 11,560 Value ($000) $974 Avg Close $83.46 Range $75.85 - $90.38
Q1 2021
Shares 50,031 Value ($000) $5,138 Avg Close $92.10 Range $80.91 - $99.72
Q3 2020
Shares 41,189 Value ($000) $2,608 Avg Close $68.67 Range $56.85 - $78.17
Q2 2020
Shares 66,689 Value ($000) $5,152 Avg Close $67.35 Range $57.02 - $79.77
Q2 2019
Shares 13,000 Value ($000) $1,186 Avg Close $76.63 Range $71.16 - $83.47
Q1 2019
Shares 9,749 Value ($000) $813 Avg Close $67.58 Range $51.63 - $78.46
Q1 2018
Shares 16,445 Value ($000) $1,128 Avg Close $62.31 Range $55.67 - $66.49
Q4 2017
Shares 76,152 Value ($000) $5,376 Avg Close $59.54 Range $53.90 - $66.58