WhaleCreep

Which hedge funds own IOSP? INNOSPEC INC, Q2 2026 13F holders

Basic MaterialsSpecialty Chemicals

42 tracked hedge funds disclosed a position in IOSP (INNOSPEC INC) in their Q2 2026 13F filings, worth $226.5m in total. The largest holder by portfolio weight is Western Standard LLC at 6.5% of its book. 7 opened a new position this quarter: SG Capital Management LLC, ExodusPoint Capital Management, LP, Prelude Capital Management, LLC, Balyasny Asset Management L.P.. 8 exited: Campbell & CO Investment Adviser LLC, Mirabella Financial Services LLP, Aquatic Capital Management LLC.

42
Holders
Tracked managers whose filing for the quarter reports a long equity position in the security.
7
New this quarter
Holders whose previous filing (at most two quarters earlier) did not report the security.
8
Exited this quarter
Tracked managers whose previous filing reported the security and whose filing for the quarter does not.
$13.9m
Inflow, new holders
Combined value of the positions the new holders reported for the quarter.
$10.5m
Outflow, exits
Combined value the exiting managers reported for the security in their previous filing.
$226m
Combined value
Sum of the holders' reported positions in the security.
3.4%
Share of managers holding
Holders as a share of tracked managers filing for that quarter. Comparable across the 2024 coverage expansion, where the raw holder count is not.

Holders, Q2 2026

42 rows
Western Standard LLC Hedge fund6.5%$19.3m236,833+4.4%added
CM Management, LLC Hedge fund1.7%$2.6m32,000+33%added
SG Capital Management LLC Hedge fund0.5%$5.8m71,022–new
Numerai GP LLC Hedge fund0.4%$5.4m66,931−13%reduced
MQS Management LLC Hedge fund0.4%$297k3,643−0.5%reduced
Atom Investors LP Hedge fund0.3%$3.3m40,870+0.2%held
Dark Forest Capital Management LP Hedge fund0.2%$3.2m38,862+52%added
EntryPoint Capital, LLC Hedge fund0.2%$813k9,9930.0%held
iSAM Funds (UK) Ltd Hedge fund0.2%$244k3,000−24%reduced
PDT Partners, LLC Hedge fund0.1%$2.5m31,176−9.8%reduced
Gsa Capital Partners LLP Hedge fund0.07%$1.2m14,271−32%reduced
Edgestream Partners, L.P. Hedge fund0.07%$2.4m29,208−15%reduced
Centiva Capital, LP Hedge fund0.04%$1.1m13,234−39%reduced
Two Sigma Investments, LP Hedge fund0.03%$46.3m568,709−4.1%reduced
Trexquant Investment LP Hedge fund0.03%$4.9m60,528−23%reduced
Entropy Technologies, LP Hedge fund0.03%$711k8,739−56%reduced
Qube Research & Technologies Ltd Hedge fund0.03%$23.3m285,849−30%reduced
Y-Intercept (Hong Kong) Ltd Hedge fund0.02%$1.2m14,815−56%reduced
Renaissance Technologies LLC Hedge fund0.02%$15.1m185,000+56%added
Brevan Howard Capital Management LP Hedge fund0.02%$1.4m17,540−28%reduced
ExodusPoint Capital Management, LP Hedge fund0.02%$1.9m23,810–new
Prelude Capital Management, LLC Hedge fund0.02%$211k2,587–new
AQR Capital Management LLC Hedge fund0.01%$39.3m482,545+55%added
Voloridge Investment Management, LLC Hedge fund0.01%$2.6m31,857−70%reduced
Balyasny Asset Management L.P. Hedge fund0.01%$4.9m59,751–new
D. E. Shaw & Co., Inc. Hedge fund0.01%$13.5m165,746−42%reduced
Engineers Gate Manager LP Hedge fund0.01%$516k6,340−90%reduced
Magnetar Financial LLC Hedge fund0.01%$654k8,039–new
Schonfeld Strategic Advisors LLC Hedge fund0.01%$1.1m13,276−49%reduced
Capstone Investment Advisors, LLC Hedge fund0.01%$813k9,993−37%reduced
Point72 Asset Management, L.P. Hedge fund0.01%$3.5m42,648−74%reduced
Jain Global LLC Hedge fund0.01%$441k5,413–new
Citadel Advisors LLC Hedge fund0.0%$8.0m98,549−55%reduced
Holocene Advisors, LP Hedge fund0.0%$1.9m23,760−10%reduced
Quarry LP Hedge fund0.0%$27.1k333+3.1%added
Freestone Grove Partners LP Hedge fund0.0%$585k7,189−32%reduced
Squarepoint Ops LLC Hedge fund0.0%$845k10,379−37%reduced
Marshall Wace, LLP Hedge fund0.0%$1.9m23,075−31%reduced
Arrowstreet Capital, Limited Partnership Hedge fund0.0%$2.8m34,876+89%added
Quantbot Technologies LP Hedge fund0.0%$6.8k83−99%reduced
CVA Family Office, LLC Family office0.0%$2.8k35+25%added
Fulcrum Asset Management LLP Hedge fund0.0%$1612–new