DORM Dorman Products, Inc.
Dorman Products, Inc. (DORM) 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 |
|---|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC Quant | Sold Out | -42.2K | -100.0% | $5.8M | 0.0% | 60 |
| TWO SIGMA INVESTMENTS, LP Quant | Sold Out | -8.1K | -100.0% | $1.1M | 0.0% | 59 |
| MARSHALL WACE, LLP Long/Short | Sold Out | -7.6K | -100.0% | $1.0M | 0.0% | 58 |
| Qube Research & Technologies Ltd Quant | Sold Out | -57.3K | -100.0% | $7.8M | 0.0% | 57 |
| Caxton Associates Macro | Sold Out | -12.7K | -100.0% | $1.7M | 0.0% | 55 |
| Quadrature Capital Quant | Sold Out | -9.7K | -100.0% | $1.3M | 0.0% | 55 |
| CITADEL ADVISORS LLC Quant | Reduced | -83.7K | -94.2% | $11.4M | 0.0% | 54 |
| Holocene Advisors, LP | Increased | +9.0K | +234.0% | $1.2M | 0.0% | 52 |
| Aquatic Capital Management Quant | Sold Out | -6.8K | -100.0% | $932.4K | 0.0% | 48 |
| Engineers Gate Quant | Sold Out | -6.0K | -100.0% | $811.9K | 0.0% | 48 |
Most significant buyers
By move score, not size.
- Holocene Advisors, LP
- AQR Capital Management
Most significant sellers
By move score, not size.
- RENAISSANCE TECHNOLOGIES LLC
- TWO SIGMA INVESTMENTS, LP
- MARSHALL WACE, LLP
- Qube Research & Technologies Ltd
- Caxton Associates
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC | 1 | 0 | 42.2K | -42.2K | -100.0% | 0.0% | Sold Out | 60 |
| TWO SIGMA INVESTMENTS, LP | 2 | 0 | 8.1K | -8.1K | -100.0% | 0.0% | Sold Out | 59 |
| MARSHALL WACE, LLP | 2 | 0 | 7.6K | -7.6K | -100.0% | 0.0% | Sold Out | 58 |
| Qube Research & Technologies Ltd | 2 | 0 | 57.3K | -57.3K | -100.0% | 0.0% | Sold Out | 57 |
| Caxton Associates | 3 | 0 | 12.7K | -12.7K | -100.0% | 0.0% | Sold Out | 55 |
| Quadrature Capital | 3 | 0 | 9.7K | -9.7K | -100.0% | 0.0% | Sold Out | 55 |
| CITADEL ADVISORS LLC | 1 | 5.2K | 88.8K | -83.7K | -94.2% | 0.0% | Reduced | 54 |
| Holocene Advisors, LP | 2 | 12.9K | 3.9K | +9.0K | +234.0% | 0.0% | Increased | 52 |
| Aquatic Capital Management | 4 | 0 | 6.8K | -6.8K | -100.0% | 0.0% | Sold Out | 48 |
| Engineers Gate | 4 | 0 | 6.0K | -6.0K | -100.0% | 0.0% | Sold Out | 48 |
| D. E. Shaw & Co., Inc. | 1 | 47.7K | 144.0K | -96.3K | -66.9% | 0.0% | Reduced | 48 |
| CenterBook Partners | 4 | 13.3K | 55.8K | -42.5K | -76.3% | 0.1% | Reduced | 40 |
| Edgestream Partners | 4 | 10.3K | 42.9K | -32.6K | -76.0% | 0.0% | Reduced | 40 |
| MILLENNIUM MANAGEMENT LLC | 2 | 50.0K | 87.7K | -37.7K | -43.0% | 0.0% | Reduced | 39 |
| Voloridge Investment Management | 2 | 81.6K | 132.0K | -50.4K | -38.2% | 0.0% | Reduced | 34 |
| Squarepoint Ops LLC | 2 | 34.3K | 42.0K | -7.6K | -18.2% | 0.0% | Reduced | 30 |
| AQR Capital Management | 3 | 6.8K | 5.7K | +1.1K | +18.9% | 0.0% | Increased | 24 |
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.