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VANGUARD PORTFOLIO MANAGEMENT LLC

Position in IOSP — Innospec Inc.

CIK 2100121 MALVERN, PA

Position in IOSP

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$153,358,619
+$17,534,775 QoQ
Shares Held
1,884,244
+1.3% QoQ
Ownership
7.65%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#3
of 282 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority Sole 0% Shared 0% None 100%

Common Shares in IOSP Over Time

Shares Held

Position Value (USD)

Position in Specialty Chemicals

Basic Materials · as of Jun 30, 2026

VANGUARD PORTFOLIO MANAGEMENT LLC holds $24,113,598,100 across 48 Specialty Chemicals names. IOSP ranks #25 (0.6% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in IOSP

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2 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $153,358,619 1,884,244
2026-03-31 $135,823,844 1,860,091