Innospec
IOSP
262 hedge funds and large institutions have $2.03B invested in Innospec in 2025 Q2 according to their latest regulatory filings, with 31 funds opening new positions, 110 increasing their positions, 86 reducing their positions, and 40 closing their positions.
28% more repeat investments, than reductions
Existing positions increased: 110 | Existing positions reduced: 86
1.84% less ownership
Funds ownership: 98.16% → 96.33% (-1.8%)
4% less funds holding
Funds holding: 272 → 262 (-10)
11% less capital invested
Capital invested by funds: $2.29B → $2.03B (-$263M)
23% less first-time investments, than exits
New positions opened: 31 | Existing positions closed: 40
100% less funds holding in top 10
Funds holding in top 10: 2 → 0 (-2)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
+$15.7M |
| 2 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
+$11.3M |
| 3 |
Brown Advisory
Baltimore,
Maryland
|
+$8.5M |
| 4 |
CSS
Cubist Systematic Strategies
Stamford,
Connecticut
|
+$7.76M |
| 5 |
Allspring Global Investments
Charlotte,
North Carolina
|
+$6.86M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
WA
Wasatch Advisors
Salt Lake City,
Utah
|
-$50M |
| 2 |
Janus Henderson Group
London,
United Kingdom
|
-$19.2M |
| 3 |
VOYA Investment Management
Atlanta,
Georgia
|
-$15.8M |
| 4 |
N
Nuveen
Charlotte,
North Carolina
|
-$13.8M |
| 5 |
Victory Capital Management
San Antonio,
Texas
|
-$13M |
IOSP Hedge Fund Activity: Q2 2025 in Review
262 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Innospec (IOSP) for Q2 2025, worth a combined $2.03B — down 11% from $2.29B a quarter earlier.
Sellers outnumbered buyers: 40 funds closed out of IOSP and 31 opened new positions — a net loss of 9 holders — while 86 trimmed existing stakes and 110 added.
The largest buyer was Millennium Management, adding an estimated $15.7M. The largest seller was Wasatch Advisors, exiting entirely with an estimated $50M sold.
- 262 institutional investors held Innospec (IOSP) as of Q2 2025, down from 272 in Q1 2025.
- Funds reported $2.03B of Innospec stock for Q2 2025, down 11% quarter-over-quarter.
- 31 funds opened new Innospec positions in Q2 2025 and 40 closed out, a net change of -9 holders.
- The largest Innospec buyer in Q2 2025 was Millennium Management, an estimated $15.7M added.
- The largest Innospec seller in Q2 2025 was Wasatch Advisors, an estimated $50M sold.
Based on aggregated 13F filings for Q2 2025.