IOSP Innospec Inc.
Innospec Inc. (IOSP) Hedge Fund Activity
This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.
Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.
Most significant moves
Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.
| Fund | Action | Shares changed | Change | Est. value | Portfolio wt. | Score |
|---|---|---|---|---|---|---|
| Bridgewater Associates Quant Macro | Sold Out | -6.0K | -100.0% | $484.3K | 0.0% | 61 |
| Balyasny Asset Management L.P. | New | +59.8K | — | $4.9M | 0.0% | 59 |
| MILLENNIUM MANAGEMENT LLC | Sold Out | -61.4K | -100.0% | $5.0M | 0.0% | 59 |
| Capital Fund Management Quant Macro | Sold Out | -20.8K | -100.0% | $1.7M | 0.0% | 55 |
| Magnetar Capital Event Quant | New | +8.0K | — | $654.3K | 0.0% | 54 |
| ExodusPoint Capital Management Long/Short Quant | New | +23.8K | — | $1.9M | 0.0% | 54 |
| Tudor Investment Corporation Macro | Sold Out | -3.8K | -100.0% | $308.0K | 0.0% | 53 |
| Caxton Associates Macro | Sold Out | -4.7K | -100.0% | $384.6K | 0.0% | 53 |
| Jain Global Long/Short Quant | New | +5.4K | — | $440.6K | 0.0% | 52 |
| Point72 Asset Management, L.P. | Reduced | -124.1K | -74.4% | $10.1M | 0.0% | 51 |
Most significant buyers
By move score, not size.
- Balyasny Asset Management L.P.
- Magnetar Capital
- ExodusPoint Capital Management
- Jain Global
- RENAISSANCE TECHNOLOGIES LLC
Most significant sellers
By move score, not size.
- Bridgewater Associates
- MILLENNIUM MANAGEMENT LLC
- Capital Fund Management
- Tudor Investment Corporation
- Caxton Associates
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Bridgewater Associates | 1 | 0 | 6.0K | -6.0K | -100.0% | 0.0% | Sold Out | 61 |
| Balyasny Asset Management L.P. | 2 | 59.8K | 0 | +59.8K | — | 0.0% | New | 59 |
| MILLENNIUM MANAGEMENT LLC | 2 | 0 | 61.4K | -61.4K | -100.0% | 0.0% | Sold Out | 59 |
| Capital Fund Management | 3 | 0 | 20.8K | -20.8K | -100.0% | 0.0% | Sold Out | 55 |
| Magnetar Capital | 2 | 8.0K | 0 | +8.0K | — | 0.0% | New | 54 |
| ExodusPoint Capital Management | 3 | 23.8K | 0 | +23.8K | — | 0.0% | New | 54 |
| Tudor Investment Corporation | 2 | 0 | 3.8K | -3.8K | -100.0% | 0.0% | Sold Out | 53 |
| Caxton Associates | 3 | 0 | 4.7K | -4.7K | -100.0% | 0.0% | Sold Out | 53 |
| Jain Global | 3 | 5.4K | 0 | +5.4K | — | 0.0% | New | 52 |
| Point72 Asset Management, L.P. | 1 | 42.6K | 166.8K | -124.1K | -74.4% | 0.0% | Reduced | 51 |
| Aquatic Capital Management | 4 | 0 | 18.2K | -18.2K | -100.0% | 0.0% | Sold Out | 50 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 185.0K | 118.9K | +66.1K | +55.6% | 0.0% | Increased | 43 |
| CITADEL ADVISORS LLC | 1 | 98.5K | 220.9K | -122.3K | -55.4% | 0.0% | Reduced | 43 |
| Voloridge Investment Management | 2 | 31.9K | 108.0K | -76.1K | -70.5% | 0.0% | Reduced | 42 |
| Engineers Gate | 4 | 6.3K | 64.7K | -58.3K | -90.2% | 0.0% | Reduced | 42 |
| D. E. Shaw & Co., Inc. | 1 | 165.7K | 286.8K | -121.0K | -42.2% | 0.0% | Reduced | 39 |
| Quantbot Technologies | 4 | 83 | 8.8K | -8.7K | -99.1% | 0.0% | Reduced | 39 |
| AQR Capital Management | 3 | 482.5K | 312.1K | +170.5K | +54.6% | 0.0% | Increased | 37 |
| Schonfeld Strategic Advisors | 3 | 13.3K | 26.3K | -13.0K | -49.4% | 0.0% | Reduced | 34 |
| Qube Research & Technologies Ltd | 2 | 285.8K | 406.6K | -120.8K | -29.7% | 0.0% | Reduced | 34 |
| Y-Intercept | 4 | 14.8K | 33.3K | -18.5K | -55.5% | 0.0% | Reduced | 33 |
| MARSHALL WACE, LLP | 2 | 23.1K | 33.5K | -10.5K | -31.2% | 0.0% | Reduced | 33 |
| Squarepoint Ops LLC | 2 | 10.4K | 16.5K | -6.1K | -37.0% | 0.0% | Reduced | 33 |
| Gotham Asset Management, LLC | 2 | 4.8K | 7.7K | -2.8K | -36.8% | 0.0% | Reduced | 33 |
| Capstone Investment Advisors | 3 | 10.0K | 15.8K | -5.8K | -36.6% | 0.0% | Reduced | 31 |
| TWO SIGMA INVESTMENTS, LP | 2 | 568.7K | 593.0K | -24.3K | -4.1% | 0.0% | Reduced | 29 |
| Quadrature Capital | 3 | 9.0K | 12.5K | -3.5K | -28.2% | 0.0% | Reduced | 29 |
| Trexquant Investment | 3 | 60.5K | 78.4K | -17.8K | -22.8% | 0.0% | Reduced | 28 |
| Centiva Capital | 4 | 13.2K | 21.6K | -8.4K | -38.8% | 0.1% | Reduced | 27 |
| Holocene Advisors, LP | 2 | 23.8K | 26.5K | -2.7K | -10.2% | 0.0% | Reduced | 27 |
| Man Group | 3 | 6.2K | 8.1K | -1.9K | -24.0% | 0.0% | Reduced | 27 |
| Brevan Howard Capital Management | 3 | 17.5K | 24.4K | -6.9K | -28.2% | 0.0% | Reduced | 26 |
| Edgestream Partners | 4 | 29.2K | 34.2K | -5.0K | -14.7% | 0.1% | Reduced | 22 |
Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeHedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.