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IRONWOOD INVESTMENT MANAGEMENT LLC: ASPN position timeline

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

IRONWOOD INVESTMENT MANAGEMENT LLC held 179,301 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 179,301 shares
    Change vs previous 13F +12,655 shares

    0.39% of the 13F portfolio, value $1,136,768.

    13F-HR 0001376474-26-000566 filed by IRONWOOD INVESTMENT MANAGEMENT LLC
    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 166,646 shares
    Change vs previous 13F +39,186 shares

    0.24% of the 13F portfolio, value $569,929.

    13F-HR 0001376474-26-000378 filed by IRONWOOD INVESTMENT MANAGEMENT LLC
    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 127,460 shares
    Change vs previous 13F -6,902 shares

    0.15% of the 13F portfolio, value $360,712.

    13F-HR 0001376474-26-000161 filed by IRONWOOD INVESTMENT MANAGEMENT LLC
    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 134,362 shares
    Change vs previous 13F +10,038 shares

    0.41% of the 13F portfolio, value $935,160.

    13F-HR 0001376474-25-000926 filed by IRONWOOD INVESTMENT MANAGEMENT LLC
    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 124,324 shares
    Change vs previous 13F not available

    0.36% of the 13F portfolio, value $735,998.

    13F-HR 0001376474-25-000744 filed by IRONWOOD INVESTMENT MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

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