Who owns MASTEC INC?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of MTZ from SEC Form 13F filings across 908 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.
As of the 2026-06-30 reporting period, 908 institutions disclosed 59.4M shares of MASTEC INC worth $24.70B — about 76.1% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
908
13F holders
$24.70B
value, 2026 filers
76.1%
of shares outstanding (59.4M sh)
200
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% | 9.8% | +4.5% |
| 2 | PECONIC PARTNERS LLC | 3.7M | $1.53B | 19.0% | 4.7% | +2.8% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 2.8M | $1.18B | 0.0% | 3.6% | +1.0% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.8M | $1.17B | 0.1% | 3.6% | +1.5% |
| 5 | STATE STREET CORP | 2.2M | $934.0M | 0.0% | 2.9% | +20.1% |
| 6 | Hill City Capital, LP | 2.2M | $896.6M | 20.9% | 2.8% | 0.0% |
| 7 | LONE PINE CAPITAL LLC | 1.3M | $559.7M | 3.4% | 1.7% | -12.1% |
| 8 | BANK OF AMERICA CORP /DE/ | 1.3M | $555.8M | 0.0% | 1.7% | +0.4% |
| 9 | FIRST TRUST ADVISORS LP | 1.3M | $552.7M | 0.3% | 1.7% | -5.9% |
| 10 | JPMORGAN CHASE & CO | 1.3M | $566.8M | 0.0% | 1.7% | +552.5% |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 1.3M | $530.4M | 0.0% | 1.6% | -6.8% |
| 12 | Invesco Ltd. | 1.2M | $516.5M | 0.0% | 1.6% | +1.3% |
| 13 | VICTORY CAPITAL MANAGEMENT INC | 1.2M | $503.5M | 0.3% | 1.5% | -24.0% |
| 14 | Hood River Capital Management LLC | 1.2M | $488.4M | 3.5% | 1.5% | -9.4% |
| 15 | FMR LLC | 890,103 | $370.3M | 0.0% | 1.1% | +41.8% |
| 16 | AMERIPRISE FINANCIAL INC | 734,976 | $305.8M | 0.1% | 0.9% | +217.1% |
| 17 | Bank of New York Mellon Corp | 674,288 | $280.5M | 0.0% | 0.9% | +2.8% |
| 18 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 660,440 | $274.8M | 0.3% | 0.8% | +9.2% |
| 19 | AQR CAPITAL MANAGEMENT LLC | 657,603 | $273.6M | 0.1% | 0.8% | -0.4% |
| 20 | MORGAN STANLEY | 653,503 | $271.9M | 0.0% | 0.8% | +11.4% |
| 21 | DIMENSIONAL FUND ADVISORS LP | 636,286 | $264.8M | 0.0% | 0.8% | -13.0% |
| 22 | Electron Capital Partners, LLC | 620,190 | $258.0M | 10.3% | 0.8% | -13.0% |
| 23 | CANADA PENSION PLAN INVESTMENT BOARD | 619,910 | $257.9M | 0.1% | 0.8% | -3.0% |
| 24 | T. Rowe Price Investment Management, Inc.NEW | 593,724 | $247.0M | 0.2% | 0.8% | new |
| 25 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 551,319 | $229.4M | 0.0% | 0.7% | +7.8% |
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.