MTZ MasTec Inc.
MasTec Inc. (MTZ) Institutional Ownership
What the institutions did with MTZ 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. | 7.6M | 12.8% |
| PECONIC PARTNERS LLC | 3.7M | 6.2% |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.8M | 4.8% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.8M | 4.7% |
| STATE STREET CORP | 2.2M | 3.8% |
| Hill City Capital, LP | 2.2M | 3.6% |
| LONE PINE CAPITAL LLC | 1.3M | 2.3% |
| BANK OF AMERICA CORP /DE/ | 1.3M | 2.2% |
| FIRST TRUST ADVISORS LP | 1.3M | 2.2% |
| JPMORGAN CHASE & CO | 1.3M | 2.2% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.3M | 2.1% |
| Invesco Ltd. | 1.2M | 2.1% |
| VICTORY CAPITAL MANAGEMENT INC | 1.2M | 2.0% |
| Hood River Capital Management LLC | 1.2M | 2.0% |
| FMR LLC | 890.1K | 1.5% |
| AMERIPRISE FINANCIAL INC | 735.0K | 1.2% |
| Bank of New York Mellon Corp | 674.3K | 1.1% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 660.4K | 1.1% |
| AQR CAPITAL MANAGEMENT LLC | 657.6K | 1.1% |
| MORGAN STANLEY | 653.5K | 1.1% |
| DIMENSIONAL FUND ADVISORS LP | 636.3K | 1.1% |
| Electron Capital Partners, LLC | 620.2K | 1.0% |
| CANADA PENSION PLAN INVESTMENT BOARD | 619.9K | 1.0% |
| T. Rowe Price Investment Management, Inc. | 593.7K | 1.0% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 551.3K | 0.9% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| JPMORGAN CHASE & CO | Increased | 202.0K | 1.3M | +1.1M |
| T. Rowe Price Investment Management, Inc. | New | 0 | 593.7K | +593.7K |
| AMERIPRISE FINANCIAL INC | Increased | 231.8K | 735.0K | +503.2K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 503.2K | 43.9K | -459.3K |
| VICTORY CAPITAL MANAGEMENT INC | Reduced | 1.6M | 1.2M | -382.4K |
| STATE STREET CORP | Increased | 1.9M | 2.2M | +375.0K |
| BlackRock, Inc. | Increased | 7.3M | 7.6M | +328.9K |
| CITADEL ADVISORS LLC | Sold Out | 279.8K | 0 | -279.8K |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | Reduced | 337.8K | 58.5K | -279.3K |
| Point72 Asset Management, L.P. | Reduced | 433.1K | 156.3K | -276.7K |
| FMR LLC | Increased | 627.9K | 890.1K | +262.2K |
| Amundi | Increased | 171.6K | 399.1K | +227.5K |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 60.8K | 282.4K | +221.6K |
| Clearbridge Investments, LLC | New | 0 | 218.6K | +218.6K |
| NORDEA INVESTMENT MANAGEMENT AB | Reduced | 733.6K | 529.5K | -204.2K |
| Squarepoint Ops LLC | Reduced | 225.7K | 24.5K | -201.2K |
| LONE PINE CAPITAL LLC | Reduced | 1.5M | 1.3M | -185.9K |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Reduced | 188.0K | 39.6K | -148.3K |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | Reduced | 152.7K | 14.4K | -138.2K |
| UBS Group AG | Increased | 381.1K | 509.8K | +128.7K |
| Balyasny Asset Management L.P. | Reduced | 128.6K | 91 | -128.5K |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 4.1K | 132.0K | +127.9K |
| D. E. Shaw & Co., Inc. | Increased | 53.4K | 180.2K | +126.9K |
| TORTOISE CAPITAL ADVISORS, L.L.C. | Increased | 18.3K | 143.7K | +125.4K |
| WESTFIELD CAPITAL MANAGEMENT CO LP | Increased | 250.0K | 374.5K | +124.5K |
| BNP PARIBAS FINANCIAL MARKETS | Increased | 313.4K | 436.6K | +123.2K |
| Hood River Capital Management LLC | Reduced | 1.3M | 1.2M | -121.5K |
| Sumitomo Mitsui Trust Group, Inc. | Increased | 9.1K | 124.3K | +115.2K |
| FEDERATED HERMES, INC. | Increased | 102.9K | 216.7K | +113.8K |
| Holocene Advisors, LP | Sold Out | 101.7K | 0 | -101.7K |
| PECONIC PARTNERS LLC | Increased | 3.6M | 3.7M | +100.0K |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | Increased | 15.7K | 112.1K | +96.4K |
| ALGERT GLOBAL LLC | Reduced | 118.1K | 21.8K | -96.3K |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 731.7K | 636.3K | -95.4K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 1.4M | 1.3M | -93.8K |
| Electron Capital Partners, LLC | Reduced | 713.0K | 620.2K | -92.8K |
| Legal & General Group Plc | Increased | 91.9K | 181.9K | +90.0K |
| JANE STREET GROUP, LLC | Reduced | 94.0K | 4.5K | -89.5K |
| KBC Group NV | Increased | 2.0K | 91.2K | +89.2K |
| MAPLELANE CAPITAL, LLC | New | 0 | 88.8K | +88.8K |
| Trexquant Investment LP | Reduced | 92.1K | 4.0K | -88.1K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Increased | 316.1K | 403.7K | +87.6K |
| Zimmer Partners, LP | New | 0 | 85.0K | +85.0K |
| Alyeska Investment Group, L.P. | Reduced | 87.5K | 2.5K | -85.0K |
| FIRST TRUST ADVISORS LP | Reduced | 1.4M | 1.3M | -83.2K |
| Anomaly Capital Management, LP | Increased | 224.5K | 306.9K | +82.4K |
| Qube Research & Technologies Ltd | Reduced | 485.4K | 409.2K | -76.2K |
| Brevan Howard Capital Management LP | Reduced | 94.7K | 22.6K | -72.1K |
| SCHRODER INVESTMENT MANAGEMENT GROUP | Reduced | 144.5K | 72.5K | -72.0K |
| TORONTO DOMINION BANK | Reduced | 80.0K | 8.3K | -71.7K |
| SG Americas Securities, LLC | Reduced | 138.8K | 68.1K | -70.8K |
| Mitsubishi UFJ Asset Management Co., Ltd. | Increased | 160 | 70.7K | +70.5K |
| GOLDMAN SACHS GROUP INC | Increased | 474.5K | 542.6K | +68.1K |
| MORGAN STANLEY | Increased | 586.7K | 653.5K | +66.8K |
| RAYMOND JAMES FINANCIAL INC | Reduced | 231.9K | 165.4K | -66.5K |
| COATUE MANAGEMENT LLC | Reduced | 583.6K | 517.3K | -66.3K |
| 140 Summer Partners LP | Reduced | 329.2K | 268.2K | -61.1K |
| 1832 Asset Management L.P. | Sold Out | 61.0K | 0 | -61.0K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | 227.3K | 166.3K | -60.9K |
| CloudAlpha Capital Management Limited/Hong Kong | Sold Out | 57.4K | 0 | -57.4K |
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.