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Innospec Inc.

IOSP
Exchange
Nasdaq
Industry
Chemicals & Allied Products
SEC CIK
0001054905

No open-market purchases or sales by Innospec Inc. insiders were filed in the last 90 days; 281 institutions reported holding it in 13F filings for Q2 2026, worth $2.00B in total; no superinvestor holds it.

Q2 2025 vs. Q1 2025

How the institutions holding Innospec Inc. changed between Q1 2025 and Q2 2025.

All holders in Q2 2025All holders in Q1 2025

13F holders of IOSP: Q1 2025 compared with Q2 2025
MeasureQ1 2025Of which not filed for Q2 2025Q2 2025Change
Holders2721262−9
Shares24.5M7024.0M−458.5K (−1.9%)
Value$2.29B$6.63K$2.03B−$263.2M (−11.5%)

1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (31)

Institutions that held Innospec Inc. at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to IOSP in Q2 2025
InstitutionSharesValue% of portfolio
Numerai GP LLC62,892$5.29M0.76%
Y-Intercept (Hong Kong) Ltd41,245$3.47M0.08%
Twinbeech Capital LP32,249$2.71M0.06%
Dark Forest Capital Management LP29,197$2.46M0.10%
Assenagon Asset Management S.A.21,143$1.78M0.00%
Gsa Capital Partners LLP19,300$1.62M0.11%
Wedge Capital Management L L P14,952$1.26M0.02%
PDT Partners, LLC13,443$1.13M0.06%
Entropy Technologies, LP10,379$872.8K0.07%
CM Management, LLC10,000$840.9K0.77%
Ieq Capital, LLC9,977$839.0K0.01%
Freestone Grove Partners LP9,277$780.1K0.01%
Squarepoint Ops LLC7,727$649.8K0.00%
Axq Capital, LP6,751$567.7K0.18%
MQS Management LLC4,311$362.5K0.20%
Wealth Enhancement Advisory Services, LLC3,893$345.3K0.00%
Jain Global LLC3,401$286.0K0.00%
Polymer Capital Management (US) LLC3,358$282.4K0.05%
Oxford Asset Management LLP3,233$271.9K0.09%
Meeder Asset Management Inc3,225$271.2K0.02%
FORA Capital, LLC2,619$220.2K0.02%
BNP PARIBAS ASSET MANAGEMENT Holding S.A.332$28.0K0.00%
Barrow Hanley Mewhinney & Strauss LLC157$13.2K0.00%
Essential Partners LLC102$8.58K0.00%
True Wealth Design, LLC59$4.96K0.00%
Private Wealth Management Group, LLC43$3.62K0.00%
Hantz Financial Services, Inc.20$2.00K0.00%
Quarry LP21$1.77K0.00%
NewSquare Capital LLC10$8410.00%
Fortitude Family Office, LLC6$5050.00%
Rialto Wealth Management, LLC1$850.00%

Sold out (40)

Institutions that held Innospec Inc. at the end of Q1 2025 and filed for Q2 2025 without it.

Not filed for Q2 2025 yet (1)

Institutions that held Innospec Inc. at the end of Q1 2025 and haven't filed a 13F for Q2 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding IOSP in Q1 2025 that haven't filed for Q2 2025
InstitutionShares, Q1 2025Value, Q1 2025
Lindbrook Capital, LLC70$6.63K