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MARSHALL WACE, LLP

Position in IOSP — Innospec Inc.

CIK 1318757 LONDON, X0

Position in IOSP

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$2,448,067
+$1,741,757 QoQ
Shares Held
33,526
+263.3% QoQ
Ownership
0.136%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
6 quarters on record
Voting authority Sole 0.ToString("F0")% Shared 100.ToString("F0")% None 0.ToString("F0")%

Common Shares in IOSP Over Time

Shares Held

Position Value (USD)

Position in Specialty Chemicals

Basic Materials · as of Mar 31, 2026

MARSHALL WACE, LLP holds $817,452,934 across 37 Specialty Chemicals names. IOSP ranks #24 (0.3% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in IOSP

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6 filing rows on record
Report Date Value (USD) Shares
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