Who owns MasTec, Inc.?
Institutional ownership of MTZ from SEC Form 13F filings across 518 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
518
13F holders
$16.28B
value, 2026 filers
50.3%
of shares outstanding (40.4M sh)
97
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of MTZ's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 7.6M | $3.18B | 0.0% | 9.5% | +4.5% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 2.8M | $1.18B | 0.0% | 3.5% | -49.5% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.8M | $1.17B | 0.1% | 3.5% | +1.5% |
| 4 | BANK OF AMERICA CORP /DE/ | 1.3M | $555.8M | 0.0% | 1.7% | +0.4% |
| 5 | FIRST TRUST ADVISORS LP | 1.3M | $552.7M | 0.3% | 1.7% | -5.9% |
| 6 | JPMORGAN CHASE & CO | 1.3M | $566.8M | 0.0% | 1.6% | +552.5% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 1.3M | $530.4M | 0.0% | 1.6% | -6.8% |
| 8 | Invesco Ltd. | 1.2M | $516.5M | 0.0% | 1.5% | +1.3% |
| 9 | VICTORY CAPITAL MANAGEMENT INC | 1.2M | $503.5M | 0.3% | 1.5% | -24.0% |
| 10 | FMR LLC | 890,103 | $370.3M | 0.0% | 1.1% | +41.8% |
| 11 | AMERIPRISE FINANCIAL INC | 734,976 | $305.8M | 0.1% | 0.9% | +217.1% |
| 12 | Bank of New York Mellon Corp | 674,288 | $280.5M | 0.0% | 0.8% | +2.8% |
| 13 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 660,440 | $274.8M | 0.3% | 0.8% | +9.2% |
| 14 | MORGAN STANLEY | 653,503 | $271.9M | 0.0% | 0.8% | +11.4% |
| 15 | Sixth Street Partners Management Company, L.P.NEW | 551,319 | $229.4M | 39.6% | 0.7% | new |
| 16 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 551,319 | $229.4M | 0.0% | 0.7% | +7.8% |
| 17 | GOLDMAN SACHS GROUP INC | 542,636 | $225.8M | 0.0% | 0.7% | +14.4% |
| 18 | NORDEA INVESTMENT MANAGEMENT AB | 529,463 | $225.5M | 0.2% | 0.7% | -27.8% |
| 19 | NORTHERN TRUST CORP | 517,643 | $215.4M | 0.0% | 0.6% | +9.5% |
| 20 | COATUE MANAGEMENT LLC | 517,250 | $215.2M | 0.4% | 0.6% | -11.4% |
| 21 | UBS Group AG | 509,843 | $212.1M | 0.0% | 0.6% | +33.8% |
| 22 | BNP PARIBAS FINANCIAL MARKETS | 436,602 | $181.7M | 0.1% | 0.5% | +39.3% |
| 23 | Qube Research & Technologies Ltd | 409,202 | $170.3M | 0.2% | 0.5% | -15.7% |
| 24 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 403,709 | $168.0M | 0.0% | 0.5% | +27.7% |
| 25 | VANGUARD FIDUCIARY TRUST CO | 399,194 | $166.1M | 0.0% | 0.5% | +4.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.