Mastec Inc
MTZ- Exchange
- NYSE
- Industry
- Water, Sewer, Pipeline, Comm & Power Line Construction
- SEC CIK
- 0000015615
No open-market purchases or sales by Mastec Inc insiders were filed in the last 90 days; 911 institutions reported holding it in 13F filings for Q2 2026, worth $24.7B in total; 4 superinvestors hold it, including Lone Pine Capital and Coatue Management.
13F holders, Q1 2026
Institutional positions in Mastec Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 811
- +122 vs. Q4 2025
- Shares held
- 58.0M
- +5.36M (+10.2%) vs. Q4 2025
- Total value
- $18.6B
- +$7.19B (+62.7%) vs. Q4 2025
- New holders
- 184
- 256 more added
- Sold out
- 62
- 263 more reduced
6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MTZ on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 911 | $24.7B |
| Q1 2026 | 811 | $18.6B |
| Q4 2025 | 695 | $12.8B |
| Q3 2025 | 652 | $12.2B |
| Q2 2025 | 594 | $9.50B |
| Q1 2025 | 523 | $6.56B |
| Q4 2024 | 532 | $7.83B |
| Q3 2024 | 470 | $7.09B |
| Q2 2024 | 430 | $6.35B |
| Q1 2024 | 382 | $5.51B |
| Q4 2023 | 368 | $4.66B |
| Q3 2023 | 382 | $4.11B |
| Q2 2023 | 393 | $6.85B |
| Q1 2023 | 394 | $5.49B |
| Q4 2022 | 386 | $4.97B |
| Q3 2022 | 338 | $3.53B |
| Q2 2022 | 356 | $3.91B |
| Q1 2022 | 388 | $4.70B |
| Q4 2021 | 388 | $4.77B |
| Q3 2021 | 366 | $4.53B |
| Q2 2021 | 415 | $5.77B |
| Q1 2021 | 392 | $5.59B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Mastec Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Bank of America Corp | 1,330,066 | $427.9M | 0.03% | +75,100+6.0% | Added |
| Geode Capital Management, LLC | 1,371,909 | $441.5M | 0.03% | +151,206+12.4% | Added |
| First Trust Advisors LP | 1,411,584 | $454.2M | 0.32% | +100,151+7.6% | Added |
| Lone Pine Capital LLCSuperinvestorLone Pine Capital | 1,531,050 | $492.6M | 3.93% | +1,531,050 | New |
| Victory Capital Management Inc | 1,592,523 | $512.4M | 0.33% | −1,044,928−39.6% | Reduced |
| State Street Corp | 1,869,788 | $601.6M | 0.02% | +43,366+2.4% | Added |
| Hill City Capital, LP | 2,155,000 | $693.3M | 24.77% | 00.0% | Unchanged |
| Vanguard Portfolio Management LLC | 2,770,038 | $891.2M | 0.05% | +2,770,038 | New |
| Vanguard Capital Management LLC | 2,804,295 | $902.3M | 0.02% | +2,804,295 | New |
| Peconic Partners LLC | 3,578,431 | $1.15B | 19.92% | +1,978,431+123.7% | Added |
| BlackRock, Inc. | 7,309,609 | $2.35B | 0.04% | +198,355+2.8% | Added |
| Blackstone Group Inc. | 0 | $0 | 0.00% | −363,924−100.0% | Sold out |
| Cartenna Capital, LP | 0 | $0 | 0.00% | −300,000−100.0% | Sold out |
| Yaupon Capital Management LP | 0 | $0 | 0.00% | −116,993−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −100,997−100.0% | Sold out |
| Wolf Hill Capital Management, LP | 0 | $0 | 0.00% | −96,439−100.0% | Sold out |
| Moore Capital Management, LP | 0 | $0 | 0.00% | −64,954−100.0% | Sold out |
| Exchange Traded Concepts, LLC | 0 | $0 | 0.00% | −63,425−100.0% | Sold out |
| Capital Fund Management S.A. | 0 | $0 | 0.00% | −50,849−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −46,240−100.0% | Sold out |
| Zweig-DiMenna Associates LLC | 0 | $0 | 0.00% | −40,000−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −39,500−100.0% | Sold out |
| Van Eck Associates Corp | 0 | $0 | 0.00% | −37,780−100.0% | Sold out |
| Edgestream Partners, L.P. | 0 | $0 | 0.00% | −29,052−100.0% | Sold out |
| BI Asset Management Fondsmaeglerselskab A/S | 0 | $0 | 0.00% | −28,300−100.0% | Sold out |
| Symmetry Investments LP | 0 | $0 | 0.00% | −19,463−100.0% | Sold out |
| HITE Hedge Asset Management LLC | 0 | $0 | 0.00% | −15,864−100.0% | Sold out |
| Bridgeway Capital Management, LLC | 0 | $0 | 0.00% | −14,720−100.0% | Sold out |
| Hillsdale Investment Management Inc. | 0 | $0 | 0.00% | −12,700−100.0% | Sold out |
| Perbak Capital Partners LLP | 0 | $0 | 0.00% | −7,395−100.0% | Sold out |
| Kestra Investment Management, LLC | 0 | $0 | 0.00% | −5,703−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −5,432−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −4,877−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −4,500−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −4,013−100.0% | Sold out |
| Headlands Technologies LLC | 0 | $0 | 0.00% | −3,731−100.0% | Sold out |
| Allianz SE | 0 | $0 | 0.00% | −3,624−100.0% | Sold out |
| Supplemental Annuity Collective Trust of NJ | 0 | $0 | 0.00% | −3,600−100.0% | Sold out |
| Gaddis Premier Wealth Advisors LLC | 0 | $0 | 0.00% | −3,248−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −3,030−100.0% | Sold out |
| Mirabella Financial Services LLP | 0 | $0 | 0.00% | −2,698−100.0% | Sold out |
| BDFS Capital LLC | 0 | $0 | 0.00% | −2,517−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −2,516−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −2,417−100.0% | Sold out |
| Clearwave Capital, LLC | 0 | $0 | 0.00% | −2,265−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −2,263−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −2,258−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −2,204−100.0% | Sold out |
| Forum Financial Management, LP | 0 | $0 | 0.00% | −2,099−100.0% | Sold out |
| Inceptionr LLC | 0 | $0 | 0.00% | −1,823−100.0% | Sold out |
| Mitsubishi UFJ Trust & Banking Corp | 0 | $0 | 0.00% | −1,799−100.0% | Sold out |
| Wealthspire Advisors, LLC | 0 | $0 | 0.00% | −1,749−100.0% | Sold out |
| Aspen Investment Management Inc | 0 | $0 | 0.00% | −1,670−100.0% | Sold out |
| Brant Point Investment Management LLC | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −1,425−100.0% | Sold out |
| Oak Thistle LLC | 0 | $0 | 0.00% | −1,297−100.0% | Sold out |
| Kaufman Rossin Wealth, LLC | 0 | $0 | 0.00% | −1,079−100.0% | Sold out |
| HighPoint Advisor Group LLC | 0 | $0 | 0.00% | −1,055−100.0% | Sold out |
| Natixis | 0 | $0 | 0.00% | −933−100.0% | Sold out |
| Wealthcare Advisory Partners LLC | 0 | $0 | 0.00% | −928−100.0% | Sold out |
| Torren Management, LLC | 0 | $0 | 0.00% | −110−100.0% | Sold out |
| Tradewinds Capital Management, LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Commonwealth Retirement Investments LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| REAP Financial Group, LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Elyxium Wealth, LLC | 0 | $0 | 0.00% | −98−100.0% | Sold out |
| SageView Advisory Group, LLC | 0 | $0 | 0.00% | −64−100.0% | Sold out |
| T. Rowe Price Investment Management, Inc. | 0 | $0 | 0.00% | −38−100.0% | Sold out |
| Delos Wealth Advisors, LLC | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| Turning Point Benefit Group, Inc. | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Flagship Harbor Advisors, LLC | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| Evolution Advisers, Inc. | 0 | $0 | 0.00% | −15−100.0% | Sold out |
| Eq Wealth Advisors, LLC | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Wealth Watch Advisors, INC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Norges Bank | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |
| CIBC Private Wealth Group, LLC | – | – | – | – | Not filed |
| ORG Partners LLC | – | – | – | – | Not filed |