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MARSHALL WACE, LLP

Position in IOSP — Innospec Inc.

CIK 1318757 LONDON, X0

Position in IOSP

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$1,878,073
-$569,994 QoQ
Shares Held
23,075
-31.2% QoQ
Ownership
0.094%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#94
of 282 holders
Holding Since
Mar 2020
7 quarters on record
Voting authority Sole 0% Shared 100% None 0%

Common Shares in IOSP Over Time

Shares Held

Position Value (USD)

Position in Specialty Chemicals

Basic Materials · as of Jun 30, 2026

MARSHALL WACE, LLP holds $1,214,660,041 across 36 Specialty Chemicals names. IOSP ranks #26 (0.2% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in IOSP

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7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,878,073 23,075
2026-03-31 $2,448,067 33,526
2025-12-31 $706,310 9,228
2024-06-30 $4,942,611 39,992
2020-09-30 $839,623 13,260
2020-06-30 $7,131,179 92,313
2020-03-31 $4,504,967 64,829