馬斯泰克公司
DE ˙ DB ˙ US5763231090
€324.40 ↑13.90 (4.48%)
2026-06-03
分享價格
SecurityDE:MY8 / MasTec, Inc.
InstitutionShell Asset Management Co
Latest Disclosed Ownership893 shares
Latest Disclosed Value $ 190
Shell Asset Management Co reports 60.15% decrease in ownership of MY8 / MasTec, Inc.

On November 7, 2025 - Shell Asset Management Co filed a 13F-HR form disclosing ownership of 893 shares of MasTec, Inc. (DE:MY8) valued at $158,954 USD as of September 30, 2025. The entity filed a previous 13F-HR on July 23, 2025 disclosing 2,241 shares of MasTec, Inc.. The current value of the position is $289,689 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2025-11-07 2025-09-30 13F MASTEC COM 576323109 893 -1,348 -60.15 0 0.0191
2025-07-23 2025-06-30 13F MASTEC COM 576323109 2,241 -406 -15.34 0 0.0132
2025-05-14 2025-03-31 13F MASTEC COM 576323109 2,647 -90 -3.29 0 0.0147
2025-02-14 2024-12-31 13F MASTEC COM 576323109 2,737 0 0.00 0 0.0163
2024-11-07 2024-09-30 13F MASTEC COM 576323109 2,737 -160 -5.52 0 0.0148
2024-07-25 2024-03-31 13F MASTEC COM 576323109 2,897 -293 -9.18 0 0.0141
2024-02-14 2023-12-31 13F MASTEC COM 576323109 3,190 -960 -23.13 0 0.0112
2023-11-08 2023-09-30 13F MASTEC COM 576323109 4,150 -72 -1.71 0 0.0124
2023-07-28 2023-06-30 13F MASTEC COM 576323109 4,222 -24 -0.57 0 0.0196
2023-05-15 2023-03-31 13F MASTEC COM 576323109 4,246 -15 -0.35 0 0.0166
2023-02-07 2022-12-31 13F MASTEC COM 576323109 4,261 -889 -17.26 0 -100.00 0.0159
2022-11-14 2022-09-30 13F MASTEC COM 576323109 5,150 -1,355 -20.83 327 -29.83 0.0127
2022-08-09 2022-06-30 13F MASTEC COM 576323109 6,505 9 0.14 466 -17.67 0.0138
2022-05-04 2022-03-31 13F MASTEC COM 576323109 6,496 -957 -12.84 566 -17.73 0.0134
2022-02-09 2021-12-31 13F MASTEC COM 576323109 7,453 834 12.60 688 20.49 0.0141
2021-11-04 2021-09-30 13F MASTEC COM 576323109 6,619 -290 -4.20 571 -22.10 0.0128
2021-08-12 2021-06-30 13F MASTEC COM 576323109 6,909 370 5.66 733 19.58 0.0142
2021-05-10 2021-03-31 13F MASTEC COM 576323109 6,539 2,184 50.15 613 106.40 0.0123
2021-02-16 2020-12-31 13F MASTEC COM 576323109 4,355 0 0.00 297 61.41 0.0061
2020-11-13 2020-09-30 13F MASTEC COM 576323109 4,355 0 0.00 184 -5.64 0.0043
2020-08-10 2020-06-30 13F MASTEC COM 576323109 4,355 -84 -1.89 195 34.48 0.0049
2020-05-11 2020-03-31 13F MASTEC COM 576323109 4,439 -68 -1.51 145 -49.83 0.0040
2020-02-13 2019-12-31 13F MASTEC COM 576323109 4,507 -132 -2.85 289 -3.99 0.0062
2019-11-12 2019-09-30 13F MASTEC COM 576323109 4,639 -40 -0.85 301 24.90 0.0069
2019-08-12 2019-06-30 13F MASTEC COM 576323109 4,679 4,679 241 0.0053
2016-02-05 2015-12-31 13F MASTEC COM 576323109 0 0 0 0.0000
2015-10-13 2015-09-30 13F MASTEC COM 576323109 0 -5,860 -100.00 0 -100.00
2015-07-30 2015-06-30 13F MASTEC COM 576323109 5,860 5,860 116 0.0023
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.