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AMERICAN CENTURY COMPANIES INC

Position in IOSP — Innospec Inc.

CIK 748054 KANSAS CITY, MO

Position in IOSP

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$4,033,186
-$124,160 QoQ
Shares Held
55,234
+1.7% QoQ
Ownership
0.224%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2021
20 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.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

AMERICAN CENTURY COMPANIES INC holds $1,949,091,916 across 45 Specialty Chemicals names. IOSP ranks #35 (0.2% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in IOSP

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20 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $4,033,186 55,234
2025-12-31 $4,157,346 54,316
2025-09-30 $4,838,086 62,702
2025-06-30 $4,697,351 55,861
2025-03-31 $4,504,888 47,545
2024-12-31 $4,098,194 37,236
2024-09-30 $2,844,439 25,152
2024-06-30 $1,235,776 9,999
2024-03-31 $2,921,522 22,658
2023-12-31 $2,648,920 21,494
2023-06-30 $1,507,303 15,007
2023-03-31 $816,739 7,955
2022-12-31 $688,956 6,698
2022-09-30 $638,498 7,453
2022-06-30 $703,098 7,340
2022-03-31 $549,191 5,934
2021-12-31 $445,556 4,932
2021-09-30 $338,311 4,017
2021-06-30 $309,523 3,416
2021-03-31 $269,972 2,629