PRIM Primoris Services Corporation
Primoris Services Corporation (PRIM) Institutional Ownership
What the institutions did with PRIM last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 6.8M | 12.4% |
| WELLINGTON MANAGEMENT GROUP LLP | 4.7M | 8.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 3.1M | 5.7% |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.4M | 4.3% |
| FIRST TRUST ADVISORS LP | 2.2M | 4.1% |
| STATE STREET CORP | 1.8M | 3.3% |
| MILLENNIUM MANAGEMENT LLC | 1.5M | 2.7% |
| Southpoint Capital Advisors LP | 1.4M | 2.5% |
| MORGAN STANLEY | 1.3M | 2.3% |
| DIMENSIONAL FUND ADVISORS LP | 1.2M | 2.1% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.1M | 2.0% |
| NORDEA INVESTMENT MANAGEMENT AB | 887.3K | 1.6% |
| AMERICAN CENTURY COMPANIES INC | 884.6K | 1.6% |
| Point72 Asset Management, L.P. | 876.5K | 1.6% |
| Invesco Ltd. | 847.7K | 1.5% |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 737.5K | 1.3% |
| FMR LLC | 637.3K | 1.2% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 554.6K | 1.0% |
| UBS Group AG | 544.7K | 1.0% |
| NORGES BANK | 517.3K | 0.9% |
| Van Berkom & Associates Inc. | 509.2K | 0.9% |
| FRONTIER CAPITAL MANAGEMENT CO LLC | 468.8K | 0.9% |
| Nuveen, LLC | 463.0K | 0.8% |
| Madison Avenue Partners, LP | 462.1K | 0.8% |
| MACKENZIE FINANCIAL CORP | 461.8K | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| FULLER & THALER ASSET MANAGEMENT, INC. | Sold Out | 3.0M | 0 | -3.0M |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 1.9M | 4.7M | +2.8M |
| BlackRock, Inc. | Reduced | 8.3M | 6.8M | -1.5M |
| Southpoint Capital Advisors LP | New | 0 | 1.4M | +1.4M |
| MILLENNIUM MANAGEMENT LLC | Increased | 400.8K | 1.5M | +1.1M |
| Artemis Investment Management LLP | Sold Out | 879.6K | 0 | -879.6K |
| Point72 Asset Management, L.P. | New | 0 | 876.5K | +876.5K |
| NORDEA INVESTMENT MANAGEMENT AB | Increased | 56.1K | 887.3K | +831.2K |
| CONGRESS ASSET MANAGEMENT CO | Reduced | 818.1K | 5.9K | -812.2K |
| MORGAN STANLEY | Increased | 555.7K | 1.3M | +728.7K |
| ALLIANCEBERNSTEIN L.P. | Reduced | 683.4K | 29.6K | -653.8K |
| FIRST TRUST ADVISORS LP | Reduced | 2.9M | 2.2M | -651.4K |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | 714.5K | 109.0K | -605.5K |
| Invesco Ltd. | Reduced | 1.4M | 847.7K | -549.1K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 3.7M | 3.1M | -530.6K |
| FRONTIER CAPITAL MANAGEMENT CO LLC | New | 0 | 468.8K | +468.8K |
| Merewether Investment Management, LP | Reduced | 674.8K | 211.9K | -462.9K |
| Madison Avenue Partners, LP | New | 0 | 462.1K | +462.1K |
| Van Berkom & Associates Inc. | Reduced | 925.2K | 509.2K | -416.0K |
| Electron Capital Partners, LLC | New | 0 | 415.1K | +415.1K |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | New | 0 | 400.0K | +400.0K |
| COOPER CREEK PARTNERS MANAGEMENT LLC | New | 0 | 388.9K | +388.9K |
| J. Safra Sarasin Holding AG | New | 0 | 375.0K | +375.0K |
| Yaupon Capital Management LP | New | 0 | 367.0K | +367.0K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 1.5M | 1.1M | -357.9K |
| Vontobel Holding Ltd. | New | 0 | 337.7K | +337.7K |
| GOLDMAN SACHS GROUP INC | Reduced | 743.2K | 430.6K | -312.6K |
| MARSHALL WACE, LLP | Increased | 9.5K | 294.6K | +285.1K |
| D. E. Shaw & Co., Inc. | Reduced | 311.1K | 52.8K | -258.3K |
| STATE STREET CORP | Reduced | 2.1M | 1.8M | -249.4K |
| CANADA PENSION PLAN INVESTMENT BOARD | Increased | 4.0K | 248.1K | +244.1K |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Reduced | 364.3K | 142.8K | -221.5K |
| JPMORGAN CHASE & CO | Reduced | 613.0K | 403.7K | -209.3K |
| NORTHERN TRUST CORP | Reduced | 516.3K | 320.0K | -196.4K |
| Engine Capital Management, LP | New | 0 | 195.8K | +195.8K |
| AMERICAN CENTURY COMPANIES INC | Reduced | 1.1M | 884.6K | -193.5K |
| Nuveen, LLC | Increased | 274.1K | 463.0K | +188.9K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 19.0K | 206.4K | +187.4K |
| GW&K Investment Management, LLC | Reduced | 192.0K | 4.8K | -187.2K |
| Raiffeisen Bank International AG | Increased | 19.7K | 198.0K | +178.3K |
| Allspring Global Investments Holdings, LLC | Increased | 12.9K | 187.8K | +174.9K |
| RAYMOND JAMES FINANCIAL INC | Reduced | 346.7K | 178.9K | -167.8K |
| OBERWEIS ASSET MANAGEMENT INC/ | Sold Out | 166.1K | 0 | -166.1K |
| Zimmer Partners, LP | New | 0 | 159.5K | +159.5K |
| Alyeska Investment Group, L.P. | Reduced | 296.8K | 140.8K | -156.0K |
| MACKENZIE FINANCIAL CORP | Increased | 307.3K | 461.8K | +154.6K |
| Handelsbanken Fonder AB | Increased | 15.0K | 167.9K | +152.9K |
| CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT | Sold Out | 152.0K | 0 | -152.0K |
| BANK OF AMERICA CORP /DE/ | Reduced | 324.9K | 174.2K | -150.7K |
| Quadrature Capital Ltd | Increased | 3.9K | 150.2K | +146.3K |
| Man Group plc | Sold Out | 140.2K | 0 | -140.2K |
| Penn Capital Management Company, LLC | New | 0 | 139.0K | +139.0K |
| Grantham, Mayo, Van Otterloo & Co. LLC | New | 0 | 138.7K | +138.7K |
| Clark Capital Management Group, Inc. | Sold Out | 137.0K | 0 | -137.0K |
| Bridgewater Associates, LP | Sold Out | 136.2K | 0 | -136.2K |
| ARDSLEY ADVISORY PARTNERS LP | New | 0 | 135.0K | +135.0K |
| Sagefield Capital LP | New | 0 | 134.0K | +134.0K |
| Portolan Capital Management, LLC | Sold Out | 130.6K | 0 | -130.6K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Reduced | 683.6K | 554.6K | -129.0K |
| ALGERT GLOBAL LLC | Reduced | 257.3K | 132.2K | -125.0K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.