Magnetar Financial’s Innospec IOSP Stock Holding History

Magnetar Financial’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	$654K	Buy	+8,039	New	+$636K	0.01%	553
2025 Q2	–	Sell	-7,181	Closed	-$680K	–	998
2025 Q1	$680K	Buy	+7,181	New	+$760K	0.01%	396
2024 Q3	–	Sell	-2,063	Closed	-$255K	–	607
2024 Q2	$255K	Buy	+2,063	New	+$258K	0.01%	415
2018 Q3	–	Sell	-7,569	Closed	-$579K	–	600
2018 Q2	$579K	Buy	+7,569	New	+$568K	0.01%	245
2017 Q2	–	Sell	-9,272	Closed	-$600K	–	874
2017 Q1	$600K	Buy	+9,272	New	+$621K	0.01%	434
2016 Q2	–	Sell	-5,358	Closed	-$232K	–	419
2016 Q1	$232K	Buy	+5,358	New	+$248K	﹤0.01%	346

Other funds holding IOSP

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Allspring Global Investments Charlotte, North Carolina $65.2B AUM 39.42% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Victory Capital Management San Antonio, Texas $178B AUM 37.23% 1-Year Est. Return

Magnetar Financial's IOSP Position: Q2 2026 in Review

Magnetar Financial opened a new position in Innospec (IOSP) in Q2 2026: 8,039 shares worth $654K. The stake represents 0.01% of the portfolio and ranks #553 among its holdings. This is a return to the name: Magnetar Financial previously reported a position in IOSP as recently as Q1 2025.

Magnetar Financial first reported a position in IOSP in Q1 2016 and has held it in 6 quarters since. The position peaked at $680K in Q1 2025. 282 funds tracked by Wall St. Rank hold IOSP as of Q2 2026.

Magnetar Financial held 8,039 shares of Innospec worth $654K as of Q2 2026.
Innospec was a new Magnetar Financial position in Q2 2026.
Innospec made up 0.01% of Magnetar Financial's portfolio in Q2 2026, its #553 holding.
Magnetar Financial first reported a position in Innospec in Q1 2016 and has held it in 6 quarters since.
Magnetar Financial's Innospec position peaked at $680K in Q1 2025.
282 funds tracked by Wall St. Rank held Innospec as of Q2 2026.

Based on Magnetar Financial's 13F filing for Q2 2026, filed 14 Aug 2026.