PRM Perimeter Solutions
Perimeter Solutions (PRM) 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 |
|---|---|---|---|---|---|---|
| Windacre Partnership Value | Reduced | -5.71M | -26.1% | $203.4M | 5.7% | 70 |
| Skye Global Management Growth Tech | Sold Out | -652.0K | -100.0% | $23.2M | 0.0% | 65 |
| Point72 Asset Management, L.P. | Sold Out | -165.7K | -100.0% | $5.9M | 0.0% | 61 |
| MILLENNIUM MANAGEMENT LLC | Sold Out | -76.5K | -100.0% | $2.7M | 0.0% | 59 |
| D. E. Shaw & Co., Inc. Quant | Sold Out | -11.8K | -100.0% | $420.4K | 0.0% | 58 |
| TWO SIGMA INVESTMENTS, LP Quant | Sold Out | -18.9K | -100.0% | $673.8K | 0.0% | 57 |
| Magnetar Capital Event Quant | Sold Out | -60.9K | -100.0% | $2.2M | 0.0% | 57 |
| MARSHALL WACE, LLP Long/Short | New | +10.9K | — | $388.9K | 0.0% | 56 |
| Tudor Investment Corporation Macro | Sold Out | -65.0K | -100.0% | $2.3M | 0.0% | 56 |
| Jain Global Long/Short Quant | New | +42.6K | — | $1.5M | 0.0% | 54 |
Most significant buyers
By move score, not size.
- MARSHALL WACE, LLP
- Jain Global
- Qube Research & Technologies Ltd
- CenterBook Partners
- Squarepoint Ops LLC
Most significant sellers
By move score, not size.
- Windacre Partnership
- Skye Global Management
- Point72 Asset Management, L.P.
- MILLENNIUM MANAGEMENT LLC
- D. E. Shaw & Co., Inc.
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Windacre Partnership | 1 | 16.1M | 21.9M | -5.71M | -26.1% | 5.7% | Reduced | 70 |
| Skye Global Management | 1 | 0 | 652.0K | -652.0K | -100.0% | 0.0% | Sold Out | 65 |
| Point72 Asset Management, L.P. | 1 | 0 | 165.7K | -165.7K | -100.0% | 0.0% | Sold Out | 61 |
| MILLENNIUM MANAGEMENT LLC | 2 | 0 | 76.5K | -76.5K | -100.0% | 0.0% | Sold Out | 59 |
| D. E. Shaw & Co., Inc. | 1 | 0 | 11.8K | -11.8K | -100.0% | 0.0% | Sold Out | 58 |
| TWO SIGMA INVESTMENTS, LP | 2 | 0 | 18.9K | -18.9K | -100.0% | 0.0% | Sold Out | 57 |
| Magnetar Capital | 2 | 0 | 60.9K | -60.9K | -100.0% | 0.0% | Sold Out | 57 |
| MARSHALL WACE, LLP | 2 | 10.9K | 0 | +10.9K | — | 0.0% | New | 56 |
| Tudor Investment Corporation | 2 | 0 | 65.0K | -65.0K | -100.0% | 0.0% | Sold Out | 56 |
| Jain Global | 3 | 42.6K | 0 | +42.6K | — | 0.0% | New | 54 |
| Qube Research & Technologies Ltd | 2 | 1.5M | 577.9K | +962.1K | +166.5% | 0.1% | Increased | 53 |
| Capital Fund Management | 3 | 0 | 12.9K | -12.9K | -100.0% | 0.0% | Sold Out | 53 |
| ExodusPoint Capital Management | 3 | 0 | 21.4K | -21.4K | -100.0% | 0.0% | Sold Out | 52 |
| CenterBook Partners | 4 | 161.7K | 0 | +161.7K | — | 0.3% | New | 52 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 126.2K | 591.3K | -465.0K | -78.7% | 0.0% | Reduced | 51 |
| Squarepoint Ops LLC | 2 | 166.2K | 82.6K | +83.6K | +101.2% | 0.0% | Increased | 51 |
| Y-Intercept | 4 | 0 | 29.8K | -29.8K | -100.0% | 0.0% | Sold Out | 50 |
| Brevan Howard Capital Management | 3 | 0 | 19.7K | -19.7K | -100.0% | 0.0% | Sold Out | 49 |
| Winton Group | 4 | 0 | 9.3K | -9.3K | -100.0% | 0.0% | Sold Out | 48 |
| Centiva Capital | 4 | 0 | 20.2K | -20.2K | -100.0% | 0.0% | Sold Out | 48 |
| Walleye Capital | 3 | 181.2K | 34.5K | +146.7K | +424.8% | 0.1% | Increased | 47 |
| Senator Investment Group | 2 | 1.8M | 2.4M | -575.0K | -24.3% | 2.5% | Reduced | 47 |
| Gotham Asset Management, LLC | 2 | 8.1K | 48.3K | -40.2K | -83.3% | 0.0% | Reduced | 46 |
| Quantbot Technologies | 4 | 0 | 14.5K | -14.5K | -100.0% | 0.0% | Sold Out | 45 |
| Voleon Capital Management | 3 | 147.7K | 411.0K | -263.3K | -64.1% | 0.1% | Reduced | 39 |
| CITADEL ADVISORS LLC | 1 | 287.7K | 329.7K | -41.9K | -12.7% | 0.0% | Reduced | 32 |
| AQR Capital Management | 3 | 490.4K | 574.2K | -83.8K | -14.6% | 0.0% | Reduced | 25 |
| Engineers Gate | 4 | 18.3K | 14.7K | +3.6K | +24.5% | 0.0% | Increased | 23 |
| Wolverine Asset Management | 2 | 1.6K | 1.6K | 0 | +0.0% | 0.0% | Unchanged | 18 |
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.