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Innospec
IOSP

266 hedge funds and large institutions have $1.85B invested in Innospec in 2025 Q3 according to their latest regulatory filings, with 32 funds opening new positions, 108 increasing their positions, 97 reducing their positions, and 25 closing their positions.

New
Increased
Maintained
Reduced
Closed

3,650% more call options, than puts

Call options by funds: $11.6M | Put options by funds: $309K

28% more first-time investments, than exits

New positions opened: 32 | Existing positions closed: 25

11% more repeat investments, than reductions

Existing positions increased: 108 | Existing positions reduced: 97

2% more funds holding

Funds holding: 262 → 266 (+4)

0.16% more ownership

Funds ownership: 96.33% → 96.49% (+0.16%)

9% less capital invested

Capital invested by funds: $2.03B → $1.85B (-$182M)

Holders
266
Holders Change
+4
Holders Change %
+1.53%
% of All Funds
3.49%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
32
Increased
108
Reduced
97
Closed
25
Calls
$11.6M
Puts
$309K
Net Calls
+$11.3M
Net Calls Change
+$11.3M

Top Buyers

Rank Fund Capital Flow
1
MVP
Medina Value Partners
California
+$19.7M
2
Goldman Sachs
Goldman Sachs
New York
+$14.9M
3
Millennium Management
Millennium Management
New York
+$11M
4
N
Nuveen
North Carolina
+$9.62M
5
Walleye Capital
Walleye Capital
New York
+$9.24M

Top Sellers

Rank Fund Capital Flow
1
First Trust Advisors
First Trust Advisors
Illinois
-$13.5M
2
Invesco
Invesco
Georgia
-$11.9M
3
RA
Royce & Associates
New York
-$11.3M
4
Victory Capital Management
Victory Capital Management
Texas
-$10.2M
5
SBH
Segall Bryant & Hamill
Illinois
-$9.94M
Name Holding Trade Value Shares
Change 		Change in
Stake
QCM
126
Quantinno Capital Management
New York
$757K +$819K +9,814 New
Susquehanna International Group
127
Susquehanna International Group
Pennsylvania
$747K -$2.27M -27,182 -74%
FGP
128
Freestone Grove Partners
California
$716K – – –
ET
129
Entropy Technologies
New York
$708K -$100K -1,200 -12%
New York State Common Retirement Fund
130
New York State Common Retirement Fund
New York
$688K – – –
ACM
131
Aquatic Capital Management
Illinois
$676K -$356K -4,266 -33%
New York State Teachers Retirement System (NYSTRS)
132
New York State Teachers Retirement System (NYSTRS)
New York
$614K -$303K -3,634 -31%
YCM
133
Yousif Capital Management
Michigan
$594K -$132K -1,581 -17%
Wealth Enhancement Advisory Services
134
Wealth Enhancement Advisory Services
Minnesota
$573K +$287K +3,438 +88%
ASRS
135
Arizona State Retirement System
Arizona
$569K +$4.59K +55 +0.8%
SCM
136
Semanteon Capital Management
Massachusetts
$565K +$612K +7,324 New
AB
137
Amalgamated Bank
New York
$557K +$8.02K +96 +1%
Russell Investments Group
138
Russell Investments Group
United Kingdom
$549K +$147K +1,766 +33%
TRSOTSOK
139
Teachers Retirement System of the State of Kentucky
Kentucky
$546K -$21.5K -257 -4%
PFSRSONJ
140
Police & Firemen's Retirement System of New Jersey
New Jersey
$536K +$110K +1,321 +23%
LPL Financial
141
LPL Financial
California
$528K +$12.8K +153 +2%
Capstone Investment Advisors
142
Capstone Investment Advisors
New York
$524K +$567K +6,792 New
AIM
143
Aigen Investment Management
New York
$520K +$26.8K +321 +5%
State Board of Administration of Florida Retirement System
144
State Board of Administration of Florida Retirement System
Florida
$519K -$2.42K -29 -0.4%
Zurich Cantonal Bank
145
Zurich Cantonal Bank
Switzerland
$513K – – –
Connor, Clark & Lunn Investment Management (CC&L)
146
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$491K +$531K +6,359 New
COPPSERS
147
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$488K -$7.01K -84 -1%
Mercer Global Advisors
148
Mercer Global Advisors
Colorado
$487K +$527K +6,309 New
MAM
149
Meeder Asset Management
Ohio
$481K +$252K +3,013 +93%
II
150
Inspire Investing
Idaho
$453K +$105K +1,252 +27%
4 5
6
7 8

IOSP Hedge Fund Activity: Q3 2025 in Review

266 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Innospec (IOSP) for Q3 2025, worth a combined $1.85B — down 9% from $2.03B a quarter earlier.

Buyers outnumbered sellers: 32 funds opened new IOSP positions and 25 closed out — a net gain of 7 holders — while 108 added to existing stakes and 97 trimmed.

The largest buyer was Medina Value Partners, opening a new position worth an estimated $19.7M. The largest seller was First Trust Advisors, cutting an estimated $13.5M.

  • 266 institutional investors held Innospec (IOSP) as of Q3 2025, up from 262 in Q2 2025.
  • Funds reported $1.85B of Innospec stock for Q3 2025, down 9% quarter-over-quarter.
  • 32 funds opened new Innospec positions in Q3 2025 and 25 closed out, a net change of +7 holders.
  • The largest Innospec buyer in Q3 2025 was Medina Value Partners, an estimated $19.7M added.
  • The largest Innospec seller in Q3 2025 was First Trust Advisors, an estimated $13.5M sold.

Based on aggregated 13F filings for Q3 2025.