INNOSPEC INC (IOSP) Institutional Ownership and Insiders Activity
INNOSPEC INC (IOSP) is widely held by institutional investors, with 270 firms reporting positions valued at approximately $1.99B based on SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is the largest disclosed holder, reporting approximately $356.60M in IOSP holdings in its latest filing.
Institutional Holders
270
Total Reported Value
$1.99B
Largest Holder
Blackrock, Inc.
Largest Position
$356.60M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
46
Funds Exiting Positions
37
Top Institutional Owners
View allInvestorReported Balance
- Blackrock, Inc.$356.60M
- Allspring Global Investments Holdings, Llc$154.75M
- Vanguard Portfolio Management Llc$153.36M
- Dimensional Fund Advisors Lp$106.22M
- Vanguard Capital Management Llc$90.19M
IOSP News
All news- Western Standard Llc Investment Activity in Q2 2026: Strategic Buys and Sales Observed
Aug 11, 2026 · valut.ai
Related IOSP Institutional Insights:
- IOSP 13F Institutional Holders
- IOSP Top Institutional Shareholders
- IOSP Institutional Ownership Changes
- Basic Materials Sector Institutional Ownership
- Basic Materials Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Basic Materials Stocks By Institutional Investors
- Most Sold Basic Materials Stocks By Institutional Investors
- IOSP Insider Trading & SEC Form 4 Activity
- IOSP Articles
- Top Institutional Investor Stock Rankings