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VANGUARD GROUP INC: ASPN position timeline

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

VANGUARD GROUP INC held 4,741,228 ASPN 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 4,741,228 shares
    Change vs previous 13F +105,357 shares

    <0.01% of the 13F portfolio, value $30,059,386.

    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: 474,393 shares
    • Vanguard Global Advisers, LLC: 28,581 shares
    • VANGUARD CAPITAL MANAGEMENT LLC: 3,539,271 shares
    • VANGUARD PORTFOLIO MANAGEMENT LLC: 698,983 shares

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

  2. period ended2026-03-31
    13F/A 4,635,871 shares
    Change vs previous 13F -50,079 shares

    <0.01% of the 13F portfolio, value $15,854,679.

    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: 454,402 shares
    • Vanguard Global Advisers, LLC: 28,581 shares
    • VANGUARD CAPITAL MANAGEMENT LLC: 3,436,156 shares
    • VANGUARD PORTFOLIO MANAGEMENT LLC: 716,732 shares

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

  3. period ended2025-12-31
    13F 4,685,950 shares
    Change vs previous 13F +175,580 shares

    <0.01% of the 13F portfolio, value $13,261,239.

    13F-HR 0000102909-26-000031 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).

  4. period ended2025-09-30
    13F 4,510,370 shares
    Change vs previous 13F +22,686 shares

    <0.01% of the 13F portfolio, value $31,392,177.

    13F-HR 0000102909-25-000353 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).

  5. period ended2025-06-30
    13F 4,487,684 shares
    Change vs previous 13F +114,525 shares

    <0.01% of the 13F portfolio, value $26,567,090.

    13F-HR 0001752724-25-185843 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).

  6. period ended2025-03-31
    13F 4,373,159 shares
    Change vs previous 13F +12,913 shares

    <0.01% of the 13F portfolio, value $27,944,486.

    13F-HR 0001752724-25-099331 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).

  7. period ended2024-12-31
    13F 4,360,246 shares
    Change vs previous 13F +226,251 shares

    <0.01% of the 13F portfolio, value $51,799,723.

    13F-HR 0001752724-25-022205 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).

  8. period ended2024-09-30
    13F 4,133,995 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $114,470,322.

    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).