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Robeco Institutional Asset Management B.V.: UMC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Robeco Institutional Asset Management B.V. on UMC, newest first. How the timeline and the estimate are built.

Robeco Institutional Asset Management B.V. held 185,209 UMC shares at 2026-06-30 per its 13F-HR filed 2026-07-21.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 185,209 shares
    Change vs previous 13F -126,323 shares

    0.01% of the 13F portfolio, value $5,039,537.

    13F-HR 0001418773-26-000003 filed by Robeco Institutional Asset Management B.V.
    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 311,532 shares
    Change vs previous 13F +66,761 shares

    <0.01% of the 13F portfolio, value $2,797,557.

    13F-HR 0001418773-26-000002 filed by Robeco Institutional Asset Management B.V.
    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 244,771 shares
    Change vs previous 13F not available

    <0.01% of the 13F portfolio, value $1,923,900.

    13F-HR 0001418773-26-000001 filed by Robeco Institutional Asset Management B.V.
    Filed (acceptance time not in the bulk data set), ingested

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