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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
American Century Companies
51
American Century Companies
Missouri
$4.84M +$571K +6,841 +12%
Teacher Retirement System of Texas
52
Teacher Retirement System of Texas
Texas
$4.81M +$199K +2,388 +4%
Ameriprise
53
Ameriprise
Minnesota
$4.63M -$2.11M -25,262 -30%
BNP Paribas Financial Markets
54
BNP Paribas Financial Markets
France
$4.01M +$2.68M +32,048 +160%
ECM
55
ExodusPoint Capital Management
New York
$3.75M -$689K -8,248 -15%
Swiss National Bank
56
Swiss National Bank
Switzerland
$3.73M +$33.4K +400 +0.8%
Barclays
57
Barclays
United Kingdom
$3.58M -$432K -5,169 -10%
A
58
AlphaQuest
New York
$3.49M +$1.37M +16,360 +57%
ZIC
59
ZWJ Investment Counsel
Georgia
$3.46M +$452K +5,410 +14%
MWM
60
Moran Wealth Management
Florida
$3.42M +$146K +1,754 +4%
PP
61
PDT Partners
New York
$3.31M +$2.46M +29,433 +219%
Verition Fund Management
62
Verition Fund Management
Connecticut
$3.28M +$826K +9,897 +30%
EP
63
Edgestream Partners
New Jersey
$3.2M -$463K -5,546 -12%
Deutsche Bank
64
Deutsche Bank
Germany
$3.17M +$2.06M +24,635 +150%
EGM
65
Engineers Gate Manager
New York
$3.14M +$138K +1,648 +4%
VOYA Investment Management
66
VOYA Investment Management
Georgia
$3.1M -$8.94M -107,105 -73%
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
67
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$3.01M +$3.25M +38,971 New
AG
68
Algert Global
California
$2.68M +$349K +4,180 +14%
Wells Fargo
69
Wells Fargo
California
$2.62M -$1.2M -14,355 -30%
DFCM
70
Dark Forest Capital Management
Puerto Rico
$2.61M +$384K +4,601 +16%
CIS
71
Connors Investor Services
Pennsylvania
$2.6M +$1.01M +12,107 +56%
YIH
72
Y-Intercept (HK)
Hong Kong
$2.33M -$926K -11,093 -27%
Canada Life
73
Canada Life
Manitoba, Canada
$2.28M +$30.3K +363 +1%
ISL
74
Ingalls & Snyder LLC
New York
$2.23M – – –
GCP
75
GSA Capital Partners
United Kingdom
$2.18M +$749K +8,974 +46%
1 2
3
4 5

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.