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Innospec

272 hedge funds and large institutions have $2.29B invested in Innospec in 2025 Q1 according to their latest regulatory filings, with 43 funds opening new positions, 97 increasing their positions, 92 reducing their positions, and 32 closing their positions.

New
Increased
Maintained
Reduced
Closed

100% more funds holding in top 10

Funds holding in top 10: 12 (+1)

34% more first-time investments, than exits

New positions opened: 43 | Existing positions closed: 32

4% more funds holding

Funds holding: 262272 (+10)

1.08% more ownership

Funds ownership: 97.08%98.16% (+1.1%)

5% more repeat investments, than reductions

Existing positions increased: 97 | Existing positions reduced: 92

14% less capital invested

Capital invested by funds: $2.66B → $2.29B (-$366M)

82% less call options, than puts

Call options by funds: $19K | Put options by funds: $104K

Holders
272
Holders Change
+10
Holders Change %
+3.82%
% of All Funds
3.65%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.03%
New
43
Increased
97
Reduced
92
Closed
32
Calls
$19K
Puts
$104K
Net Calls
-$85K
Net Calls Change
-$569K
Name Holding Trade Value Shares
Change
Change in
Stake
Millennium Management
26
Millennium Management
New York
$16.1M +$17.8M +168,355 +8,177%
FH
27
Financial Harvest
Florida
$12.6M +$45.9M +433,843 New
Principal Financial Group
28
Principal Financial Group
Iowa
$12.6M +$322K +3,045 +2%
Goldman Sachs
29
Goldman Sachs
New York
$12.5M +$848K +8,014 +6%
CSS
30
Cubist Systematic Strategies
Connecticut
$12.4M +$9.18M +86,780 +199%
Renaissance Technologies
31
Renaissance Technologies
New York
$12M +$12.9M +122,100 +2,544%
Norges Bank
32
Norges Bank
Norway
$10M +$308K +2,910 +3%
UBS AM
33
UBS AM
Illinois
$9.64M +$1.35M +12,755 +14%
D.E. Shaw & Co
34
D.E. Shaw & Co
New York
$9.39M +$6.46M +61,044 +161%
SBH
35
Segall Bryant & Hamill
Illinois
$9.28M -$289K -2,734 -3%
Jane Street
36
Jane Street
New York
$9.02M +$9.47M +89,476 +1,552%
UBS Group
37
UBS Group
Switzerland
$7.76M -$297K -2,807 -3%
Public Sector Pension Investment Board (PSP Investments)
38
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$7.5M +$1.8M +16,993 +27%
PAM
39
Panagora Asset Management
Massachusetts
$7.49M +$2.75K +26 +0%
KMC
40
Kirr Marbach & Co
Indiana
$7.49M +$145K +1,370 +2%
Two Sigma Investments
41
Two Sigma Investments
New York
$7.43M +$6.91M +65,276 +496%
RhumbLine Advisers
42
RhumbLine Advisers
Massachusetts
$7.37M +$698K +6,602 +9%
GJL
43
Gendell Jeffrey L
$7.32M -$1.91M -18,070 -19%
LI
44
Leeward Investments
Massachusetts
$7.24M -$380K -3,591 -4%
Citadel Advisors
45
Citadel Advisors
Florida
$7.12M +$5.26M +49,721 +196%
EP
46
Edgestream Partners
New Jersey
$6.64M +$6.03M +56,991 +437%
HCM
47
Huber Capital Management
California
$6.53M +$2.09M +19,800 +40%
Legal & General Group
48
Legal & General Group
United Kingdom
$6.51M -$309K -2,919 -4%
Ameriprise
49
Ameriprise
Minnesota
$6.26M -$369K -3,491 -5%
Hotchkis & Wiley Capital Management
50
Hotchkis & Wiley Capital Management
California
$5.74M -$80.4K -760 -1%

IOSP Hedge Fund Activity: Q1 2025 in Review

272 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in Innospec (IOSP) for Q1 2025, worth a combined $2.29B — down 14% from $2.66B a quarter earlier.

Buyers outnumbered sellers: 43 funds opened new IOSP positions and 32 closed out — a net gain of 11 holders — while 97 added to existing stakes and 92 trimmed.

The largest buyer was First Trust Advisors, adding an estimated $48.9M. The largest seller was Wasatch Advisors, cutting an estimated $111M.

  • 272 institutional investors held Innospec (IOSP) as of Q1 2025, up from 262 in Q4 2024.
  • Funds reported $2.29B of Innospec stock for Q1 2025, down 14% quarter-over-quarter.
  • 43 funds opened new Innospec positions in Q1 2025 and 32 closed out, a net change of +11 holders.
  • The largest Innospec buyer in Q1 2025 was First Trust Advisors, an estimated $48.9M added.
  • The largest Innospec seller in Q1 2025 was Wasatch Advisors, an estimated $111M sold.

Based on aggregated 13F filings for Q1 2025.