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Disclosery

Blackstone Inc.: MTZ position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Blackstone Inc. on MTZ, newest first. How the timeline and the estimate are built.

Blackstone Inc. held 7,061 MTZ shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F/A 7,061 shares
    Change vs previous 13F +7,061 shares

    0.01% of the 13F portfolio, value $2,937,800.

    13F-HR 0001193125-26-352211 filed by Blackstone Inc.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  2. period ended2026-03-31
    13F/A 0 shares
    Change vs previous 13F -363,924 shares

    13F-HR 0001193125-26-226672 filed by Blackstone Inc.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

    Exited: the 13F for this period no longer lists the position.

  3. period ended2025-12-31
    13F/A 363,924 shares
    Change vs previous 13F +43,924 shares

    0.27% of the 13F portfolio, value $79,106,160.

    13F-HR 0001193125-26-054623 filed by Blackstone Inc.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2025-09-30
    13F/A 320,000 shares
    Change vs previous 13F -30,000 shares

    0.29% of the 13F portfolio, value $68,099,200.

    13F-HR 0001193125-25-282864 filed by Blackstone Inc.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  5. period ended2025-06-30
    13F 350,000 shares
    Change vs previous 13F +35,000 shares

    0.27% of the 13F portfolio, value $59,650,500.

    13F-HR 0000950123-25-008390 filed by Blackstone Inc.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  6. period ended2025-03-31
    13F 315,000 shares
    Change vs previous 13F not available

    0.16% of the 13F portfolio, value $36,763,650.

    13F-HR 0000950123-25-005761 filed by Blackstone Inc.
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).