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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
MSRPS
176
Maryland State Retirement & Pension System
Maryland
$275K -$309K -3,706 -51%
AI
177
Atom Investors
Texas
$264K +$286K +3,425 New
I
178
InceptionR
California
$253K +$273K +3,275 New
Mackenzie Financial
179
Mackenzie Financial
Ontario, Canada
$244K -$33.6K -403 -11%
Public Employees Retirement Association of Colorado
180
Public Employees Retirement Association of Colorado
Colorado
$233K – – –
MM
181
MQS Management
New York
$228K -$113K -1,357 -31%
CAPTRUST Financial Advisors
182
CAPTRUST Financial Advisors
North Carolina
$228K +$247K +2,954 New
State of Wisconsin Investment Board
183
State of Wisconsin Investment Board
Wisconsin
$225K -$557K -6,672 -70%
FC
184
Farringdon Capital
United Kingdom
$212K +$229K +2,746 New
CBU
185
CIBC Bancorp USA
Illinois
$207K +$224K +2,679 New
DTL
186
Dynamic Technology Lab
Singapore
$204K -$1.18M -14,161 -84%
TRCT
187
Tower Research Capital (TRC)
New York
$194K -$350K -4,193 -62%
AIP
188
Ameritas Investment Partners
Nebraska
$162K -$42.5K -509 -20%
Nisa Investment Advisors
189
Nisa Investment Advisors
Missouri
$148K +$12.9K +155 +9%
PNC Financial Services Group
190
PNC Financial Services Group
Pennsylvania
$129K -$7.26K -87 -5%
SCM
191
Sterling Capital Management
North Carolina
$128K +$84.1K +1,007 +156%
SAM
192
Smartleaf Asset Management
Massachusetts
$101K +$47.3K +566 +75%
Fidelity Investments
193
Fidelity Investments
Massachusetts
$77.6K -$81.9K -981 -49%
MMCM
194
Murphy & Mullick Capital Management
New York
$74.2K – – –
HPC
195
HM Payson & Co
Maine
$70.1K – – –
EP
196
Essential Partners
California
$69.5K +$66.7K +799 +783%
MCM
197
MAI Capital Management
Ohio
$69.4K +$8.85K +106 +13%
KBC Group
198
KBC Group
Belgium
$66K – – –
VI
199
Vestcor Inc
New Brunswick, Canada
$63K -$111K -1,328 -62%
PD
200
Point72 (DIFC)
United Arab Emirates
$59K +$63.9K +765 New
6 7
8
9 10

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.