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TWO SIGMA INVESTMENTS, LP

Position in IOSP — Innospec Inc.

CIK 1179392 NEW YORK, NY

Position in IOSP

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$46,287,225
+$2,983,518 QoQ
Shares Held
568,709
-4.1% QoQ
Ownership
2.31%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
#11
of 282 holders
Holding Since
Mar 2021
22 quarters on record
Voting authority Sole 98% Shared 0% None 2%

Common Shares in IOSP Over Time

Shares Held

Position Value (USD)

Position in Specialty Chemicals

Basic Materials · as of Jun 30, 2026

TWO SIGMA INVESTMENTS, LP holds $1,356,409,714 across 39 Specialty Chemicals names. IOSP ranks #10 (3.4% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in IOSP

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22 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $46,287,225 568,709
2026-03-31 $43,303,707 593,039
2025-12-31 $12,209,201 159,514
2025-09-30 $11,435,497 148,205
2025-06-30 $11,624,517 138,239
2025-03-31 $7,432,758 78,446
2024-12-31 $1,449,490 13,170
2024-09-30 $2,894,538 25,595
2024-06-30 $3,705,598 29,983
2024-03-31 $911,605 7,070
2023-12-31 $597,837 4,851
2023-09-30 $2,241,041 21,928
2023-06-30 $3,363,434 33,487
2023-03-31 $4,441,093 43,256
2022-12-31 $1,254,171 12,193
2022-09-30 $496,714 5,798
2022-06-30 $248,287 2,592
2022-03-31 $1,607,871 17,373
2021-12-31 $2,915,000 32,267
2021-09-30 $6,925,663 82,233
2021-06-30 $5,439,499 60,032
2021-03-31 $1,039,120 10,119