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VANGUARD GROUP INC: ATRO position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of VANGUARD GROUP INC on ATRO, newest first. How the timeline and the estimate are built.

VANGUARD GROUP INC held 2,093,813 ATRO shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 2,093,813 shares
    Change vs previous 13F +82,417 shares

    <0.01% of the 13F portfolio, value $170,143,245.

    13F-HR 0002100119-26-001527 filed by VANGUARD CAPITAL MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD FIDUCIARY TRUST CO: 231,255 shares
    • Vanguard Investments Australia, Ltd.: 8,168 shares
    • VANGUARD ASSET MANAGEMENT, Ltd: 20,706 shares
    • Vanguard Global Advisers, LLC: 14,271 shares
    • VANGUARD CAPITAL MANAGEMENT LLC: 1,419,352 shares
    • VANGUARD PORTFOLIO MANAGEMENT LLC: 400,061 shares

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

  2. period ended2026-03-31
    13F/A 2,011,396 shares
    Share basis changed not comparable

    Membership change: VANGUARD ASSET MANAGEMENT, Ltd joined the group. <0.01% of the 13F portfolio, value $134,220,455.

    13F-HR/A 0002100119-26-001311 filed by VANGUARD CAPITAL MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD FIDUCIARY TRUST CO: 217,931 shares
    • Vanguard Investments Australia, Ltd.: 6,393 shares
    • VANGUARD ASSET MANAGEMENT, Ltd: 17,205 shares
    • Vanguard Global Advisers, LLC: 14,954 shares
    • VANGUARD CAPITAL MANAGEMENT LLC: 1,388,899 shares
    • VANGUARD PORTFOLIO MANAGEMENT LLC: 366,014 shares

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

  3. period ended2024-09-30
    13F 1,592,072 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $31,013,562.

    13F-HR 0001752724-24-248565 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

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