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Disclosery

STATE OF WISCONSIN INVESTMENT BOARD: ASPN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of STATE OF WISCONSIN INVESTMENT BOARD on ASPN, newest first. How the timeline and the estimate are built.

STATE OF WISCONSIN INVESTMENT BOARD held 33,247 ASPN 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 33,247 shares
    Change vs previous 13F -69,429 shares

    <0.01% of the 13F portfolio, value $210,786.

    13F-HR 0001062993-26-004375 filed by STATE OF WISCONSIN INVESTMENT BOARD
    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 102,676 shares
    Change vs previous 13F -17,562 shares

    <0.01% of the 13F portfolio, value $351,152.

    13F-HR 0001062993-26-002676 filed by STATE OF WISCONSIN INVESTMENT BOARD
    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 120,238 shares
    Change vs previous 13F -136,552 shares

    <0.01% of the 13F portfolio, value $340,274.

    13F-HR 0001062993-26-000957 filed by STATE OF WISCONSIN INVESTMENT BOARD
    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 256,790 shares
    Change vs previous 13F -25,833 shares

    <0.01% of the 13F portfolio, value $1,787,258.

    13F-HR 0001062993-25-016783 filed by STATE OF WISCONSIN INVESTMENT BOARD
    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 282,623 shares
    Change vs previous 13F +69,354 shares

    <0.01% of the 13F portfolio, value $1,673,128.

    13F-HR 0001062993-25-014368 filed by STATE OF WISCONSIN INVESTMENT BOARD
    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 213,269 shares
    Change vs previous 13F -71,139 shares

    <0.01% of the 13F portfolio, value $1,362,789.

    13F-HR 0001062993-25-009484 filed by STATE OF WISCONSIN INVESTMENT BOARD
    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 284,408 shares
    Change vs previous 13F +51,017 shares

    0.01% of the 13F portfolio, value $3,378,767.

    13F-HR 0001062993-25-002462 filed by STATE OF WISCONSIN INVESTMENT BOARD
    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 233,391 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $6,462,597.

    13F-HR 0001062993-24-019058 filed by STATE OF WISCONSIN INVESTMENT BOARD
    Filed (acceptance time not in the bulk data set), ingested

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