Assenagon Asset Management’s Innospec IOSP Stock Holding History

Assenagon Asset Management’s Portfolio IOSP Stock Details IOSP Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$22.2M	Sell	272,782 -218,102	-44%	-$17.3M	0.03%	386
2026 Q1	$35.8M	Buy	490,884 +312,680	+175%	+$24.3M	0.05%	251
2025 Q4	$13.6M	Buy	178,204 +48,807	+38%	+$3.69M	0.02%	434
2025 Q3	$9.98M	Buy	129,397 +108,254	+512%	+$9.04M	0.01%	481
2025 Q2	$1.78M	Buy	+21,143	New	+$1.85M	﹤0.01%	804
2025 Q1	–	Sell	-24,835	Closed	-$2.73M	–	1255
2024 Q4	$2.73M	Sell	24,835 -110,534	-82%	-$12.7M	﹤0.01%	849
2024 Q3	$15.3M	Buy	135,369 +15,287	+13%	+$1.78M	0.03%	419
2024 Q2	$14.8M	Buy	120,082 +59,554	+98%	+$7.45M	0.03%	347
2024 Q1	$7.8M	Buy	60,528 +40,250	+198%	+$4.89M	0.02%	491
2023 Q4	$2.5M	Buy	20,278 +8,463	+72%	+$901K	0.01%	851
2023 Q3	$1.21M	Buy	+11,815	New	+$1.23M	﹤0.01%	999
2023 Q1	–	Sell	-13,626	Closed	-$1.4M	–	1461
2022 Q4	$1.4M	Buy	+13,626	New	+$1.38M	0.01%	945
2021 Q4	–	Sell	-11,560	Closed	-$974K	–	1486
2021 Q3	$974K	Buy	+11,560	New	+$1.03M	﹤0.01%	913
2021 Q2	–	Sell	-50,031	Closed	-$5.14M	–	1301
2021 Q1	$5.14M	Buy	+50,031	New	+$4.95M	0.02%	499
2020 Q4	–	Sell	-41,189	Closed	-$2.61M	–	1132
2020 Q3	$2.61M	Sell	41,189 -25,500	-38%	-$1.89M	0.01%	524
2020 Q2	$5.15M	Buy	+66,689	New	+$4.88M	0.03%	324
2019 Q3	–	Sell	-13,000	Closed	-$1.19M	–	946
2019 Q2	$1.19M	Buy	13,000 +3,251	+33%	+$274K	0.01%	673
2019 Q1	$813K	Buy	+9,749	New	+$727K	0.01%	729
2018 Q2	–	Sell	-16,445	Closed	-$1.13M	–	521
2018 Q1	$1.13M	Sell	16,445 -59,707	-78%	-$4.15M	0.01%	384
2017 Q4	$5.38M	Buy	+76,152	New	+$5.07M	0.06%	249

Other funds holding IOSP

ZIC

ZWJ Investment Counsel Atlanta, Georgia $3.09B AUM 39.43% 1-Year Est. Return

WCM

Wedge Capital Management Charlotte, North Carolina $6.06B AUM 47.24% 1-Year Est. Return

LTAS

Linden Thomas Advisory Services Charlotte, North Carolina $1.24B AUM 47.37% 1-Year Est. Return

YIH

Y-Intercept (HK) Hong Kong $5.05B AUM 17.89% 1-Year Est. Return

Wealth Enhancement Advisory Services Plymouth, Minnesota $59.8B AUM 29.42% 1-Year Est. Return

Diversified Trust Memphis, Tennessee $6.24B AUM 28.78% 1-Year Est. Return

YCM

Yousif Capital Management Bloomfield Hills, Michigan $8.94B AUM 42.6% 1-Year Est. Return

COPPSERS

Commonwealth of Pennsylvania Public School Employees Retirement System Harrisburg, Pennsylvania $20.6B AUM 37.37% 1-Year Est. Return

MFG

Merit Financial Group Alpharetta, Georgia $16.4B AUM 25.17% 1-Year Est. Return

SFA

Sequoia Financial Advisors Akron, Ohio $20.1B AUM 24.77% 1-Year Est. Return

Assenagon Asset Management's IOSP Position: Q2 2026 in Review

Assenagon Asset Management reduced its Innospec (IOSP) stake by 44% in Q2 2026, selling an estimated $17.3M and leaving 272,782 shares worth $22.2M. The position accounts for 0.03% of the portfolio, ranked #386.

Assenagon Asset Management first reported a position in IOSP in Q4 2017 and has held it in 20 quarters since. The position peaked at $35.8M in Q1 2026. 25 funds tracked by Wall St. Rank hold IOSP as of Q2 2026.

Assenagon Asset Management held 272,782 shares of Innospec worth $22.2M as of Q2 2026.
Assenagon Asset Management sold 218,102 Innospec shares in Q2 2026, an estimated $17.3M.
Innospec made up 0.03% of Assenagon Asset Management's portfolio in Q2 2026, its #386 holding.
Assenagon Asset Management first reported a position in Innospec in Q4 2017 and has held it in 20 quarters since.
Assenagon Asset Management's Innospec position peaked at $35.8M in Q1 2026.
25 funds tracked by Wall St. Rank held Innospec as of Q2 2026.

Based on Assenagon Asset Management's 13F filing for Q2 2026, filed 8 Jul 2026.