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Disclosery

BlackRock, Inc.: ASPN position timeline

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

BlackRock, Inc. held 5,277,148 ASPN shares at 2026-06-30 per its 13F-HR filed 2026-08-07.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 5,277,148 shares
    Change vs previous 13F +534,072 shares

    <0.01% of the 13F portfolio, value $33,457,120.

    13F-HR 0002012383-26-003238 filed by BlackRock, 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 4,743,076 shares
    Change vs previous 13F -186,163 shares

    <0.01% of the 13F portfolio, value $16,221,320.

    13F-HR 0002012383-26-001841 filed by BlackRock, Inc.
    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 4,929,239 shares
    Change vs previous 13F -48,319 shares

    <0.01% of the 13F portfolio, value $13,949,748.

    13F-HR 0002012383-26-000920 filed by BlackRock, 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 4,977,558 shares
    Change vs previous 13F +372 shares

    <0.01% of the 13F portfolio, value $34,643,803.

    13F-HR 0002012383-25-002949 filed by BlackRock, 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 4,977,186 shares
    Change vs previous 13F +17,014 shares

    <0.01% of the 13F portfolio, value $29,464,940.

    13F-HR 0001060021-25-000120 filed by BlackRock, 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 4,960,172 shares
    Change vs previous 13F -41,033 shares

    <0.01% of the 13F portfolio, value $31,695,500.

    13F-HR 0001576419-25-000869 filed by BlackRock, 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 5,001,205 shares
    Change vs previous 13F +336,880 shares

    <0.01% of the 13F portfolio, value $59,414,314.

    13F-HR 0001060021-25-000002 filed by BlackRock, 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 4,664,325 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $129,155,158.

    13F-HR 0001426459-24-000006 filed by BlackRock, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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