PRIM Primoris Services Corporation
Primoris Services Corporation (PRIM) 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 |
|---|---|---|---|---|---|---|
| Southpoint Capital Advisors Long/Short | New | +1.40M | — | $138.8M | 3.2% | 80 |
| Madison Avenue Partners Value | New | +462.1K | — | $45.8M | 2.2% | 69 |
| Electron Capital Partners Long/Short | New | +415.1K | — | $41.1M | 1.7% | 66 |
| Point72 Asset Management, L.P. | New | +876.5K | — | $86.9M | 0.1% | 66 |
| Bridgewater Associates Quant Macro | Sold Out | -136.2K | -100.0% | $13.5M | 0.0% | 65 |
| Yaupon Capital Management | New | +367.0K | — | $36.4M | 1.3% | 65 |
| Portolan Capital Management Long/Short | Sold Out | -130.6K | -100.0% | $12.9M | 0.0% | 61 |
| Zimmer Partners Long/Short | New | +159.5K | — | $15.8M | 0.4% | 60 |
| MILLENNIUM MANAGEMENT LLC | Increased | +1.09M | +272.4% | $108.2M | 0.1% | 60 |
| TWO SIGMA INVESTMENTS, LP Quant | New | +14.2K | — | $1.4M | 0.0% | 59 |
Most significant buyers
By move score, not size.
- Southpoint Capital Advisors
- Madison Avenue Partners
- Electron Capital Partners
- Point72 Asset Management, L.P.
- Yaupon Capital Management
Most significant sellers
By move score, not size.
- Bridgewater Associates
- Portolan Capital Management
- ADAGE CAPITAL PARTNERS GP, L.L.C.
- Qube Research & Technologies Ltd
- Merewether Investment Management
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Southpoint Capital Advisors | 2 | 1.4M | 0 | +1.40M | — | 3.2% | New | 80 |
| Madison Avenue Partners | 2 | 462.1K | 0 | +462.1K | — | 2.2% | New | 69 |
| Electron Capital Partners | 2 | 415.1K | 0 | +415.1K | — | 1.7% | New | 66 |
| Point72 Asset Management, L.P. | 1 | 876.5K | 0 | +876.5K | — | 0.1% | New | 66 |
| Bridgewater Associates | 1 | 0 | 136.2K | -136.2K | -100.0% | 0.0% | Sold Out | 65 |
| Yaupon Capital Management | 2 | 367.0K | 0 | +367.0K | — | 1.3% | New | 65 |
| Portolan Capital Management | 3 | 0 | 130.6K | -130.6K | -100.0% | 0.0% | Sold Out | 61 |
| Zimmer Partners | 2 | 159.5K | 0 | +159.5K | — | 0.4% | New | 60 |
| MILLENNIUM MANAGEMENT LLC | 2 | 1.5M | 400.8K | +1.09M | +272.4% | 0.1% | Increased | 60 |
| TWO SIGMA INVESTMENTS, LP | 2 | 14.2K | 0 | +14.2K | — | 0.0% | New | 59 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 2 | 0 | 35.2K | -35.2K | -100.0% | 0.0% | Sold Out | 58 |
| Qube Research & Technologies Ltd | 2 | 0 | 34.5K | -34.5K | -100.0% | 0.0% | Sold Out | 57 |
| Weiss Asset Management | 2 | 98.4K | 0 | +98.4K | — | 0.2% | New | 57 |
| Merewether Investment Management | 2 | 211.9K | 674.8K | -462.9K | -68.6% | 0.4% | Reduced | 57 |
| Man Group | 3 | 0 | 140.2K | -140.2K | -100.0% | 0.0% | Sold Out | 56 |
| Voloridge Investment Management | 2 | 0 | 95.6K | -95.6K | -100.0% | 0.0% | Sold Out | 56 |
| MARSHALL WACE, LLP | 2 | 294.6K | 9.5K | +285.1K | +2997.8% | 0.0% | Increased | 54 |
| Jain Global | 3 | 17.4K | 0 | +17.4K | — | 0.0% | New | 54 |
| Systematic Alpha Investments | 2 | 0 | 1.9K | -1.9K | -100.0% | 0.0% | Sold Out | 54 |
| Walleye Capital | 3 | 0 | 57.4K | -57.4K | -100.0% | 0.0% | Sold Out | 53 |
| Hudson Bay Capital Management | 3 | 9.1K | 0 | +9.1K | — | 0.0% | New | 53 |
| Lighthouse Investment Partners | 3 | 33.8K | 0 | +33.8K | — | 0.1% | New | 53 |
| Capstone Investment Advisors | 3 | 0 | 2.5K | -2.5K | -100.0% | 0.0% | Sold Out | 53 |
| CenterBook Partners | 4 | 86.4K | 0 | +86.4K | — | 0.4% | New | 53 |
| D. E. Shaw & Co., Inc. | 1 | 52.8K | 311.1K | -258.3K | -83.0% | 0.0% | Reduced | 52 |
| Holocene Advisors, LP | 2 | 108.0K | 16.5K | +91.4K | +552.5% | 0.0% | Increased | 52 |
| Quadrature Capital | 3 | 150.2K | 3.9K | +146.3K | +3772.6% | 0.2% | Increased | 51 |
| Y-Intercept | 4 | 92.6K | 0 | +92.6K | — | 0.2% | New | 51 |
| Schonfeld Strategic Advisors | 3 | 9.0K | 0 | +9.0K | — | 0.0% | New | 51 |
| Boothbay Fund Management | 4 | 14.9K | 0 | +14.9K | — | 0.0% | New | 51 |
| Aquatic Capital Management | 4 | 32.2K | 0 | +32.2K | — | 0.1% | New | 51 |
| Cinctive Capital Management | 3 | 3.4K | 0 | +3.4K | — | 0.0% | New | 50 |
| Edgestream Partners | 4 | 6.2K | 0 | +6.2K | — | 0.0% | New | 49 |
| Gotham Asset Management, LLC | 2 | 3.4K | 20.7K | -17.2K | -83.5% | 0.0% | Reduced | 46 |
| Brevan Howard Capital Management | 3 | 31.9K | 1.6K | +30.3K | +1867.8% | 0.1% | Increased | 46 |
| LMR Partners | 3 | 7.4K | 29.8K | -22.4K | -75.2% | 0.0% | Reduced | 43 |
| Alyeska Investment Group, L.P. | 2 | 140.8K | 296.8K | -156.0K | -52.6% | 0.0% | Reduced | 43 |
| Balyasny Asset Management L.P. | 2 | 4.7K | 3.4K | +1.3K | +38.3% | 0.0% | Increased | 36 |
| CITADEL ADVISORS LLC | 1 | 302.4K | 282.4K | +20.0K | +7.1% | 0.0% | Increased | 31 |
| AQR Capital Management | 3 | 80.0K | 112.1K | -32.0K | -28.6% | 0.0% | Reduced | 29 |
| ExodusPoint Capital Management | 3 | 44.6K | 53.8K | -9.2K | -17.0% | 0.0% | Reduced | 26 |
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.