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DIMENSIONAL FUND ADVISORS LP: ASPN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of DIMENSIONAL FUND ADVISORS LP on ASPN, newest first. How the timeline and the estimate are built.

DIMENSIONAL FUND ADVISORS LP held 1,447,333 ASPN shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 1,447,333 shares
    Change vs previous 13F +190,853 shares

    <0.01% of the 13F portfolio, value $9,174,123.

    13F-HR 0000354204-26-000866 filed by DIMENSIONAL FUND ADVISORS LP
    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 1,256,480 shares
    Change vs previous 13F -747,483 shares

    <0.01% of the 13F portfolio, value $4,296,033.

    13F-HR 0000354204-26-000581 filed by DIMENSIONAL FUND ADVISORS LP
    Filed (acceptance time not in the bulk data set), ingested

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

  3. period ended2025-12-31
    13F 2,003,963 shares
    Change vs previous 13F -248,050 shares

    <0.01% of the 13F portfolio, value $5,671,810.

    13F-HR 0000354204-26-000347 filed by DIMENSIONAL FUND ADVISORS LP
    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 2,252,013 shares
    Change vs previous 13F -197,090 shares

    <0.01% of the 13F portfolio, value $15,674,611.

    13F-HR 0000354204-25-001337 filed by DIMENSIONAL FUND ADVISORS LP
    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 2,449,103 shares
    Change vs previous 13F -58,481 shares

    <0.01% of the 13F portfolio, value $14,498,844.

    13F-HR 0000354204-25-001097 filed by DIMENSIONAL FUND ADVISORS LP
    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 2,507,584 shares
    Change vs previous 13F +488,953 shares

    <0.01% of the 13F portfolio, value $16,024,149.

    13F-HR 0000354204-25-000866 filed by DIMENSIONAL FUND ADVISORS LP
    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 2,018,631 shares
    Change vs previous 13F +409,862 shares

    0.01% of the 13F portfolio, value $23,982,717.

    13F-HR 0000354204-25-000528 filed by DIMENSIONAL FUND ADVISORS LP
    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 1,608,769 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $44,549,919.

    13F-HR 0000354204-24-004773 filed by DIMENSIONAL FUND ADVISORS LP
    Filed (acceptance time not in the bulk data set), ingested

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