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Disclosery

Calamos Advisors LLC: WAT position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Calamos Advisors LLC on WAT, newest first. How the timeline and the estimate are built.

Calamos Advisors LLC held 7,914 WAT shares at 2026-06-30 per its 13F-HR filed 2026-07-31.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 7,914 shares
    Change vs previous 13F -147 shares

    0.01% of the 13F portfolio, value $2,968,067.

    13F-HR 0001316507-26-000003 filed by Calamos Advisors 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 8,061 shares
    Change vs previous 13F not available

    0.01% of the 13F portfolio, value $2,400,566.

    13F-HR 0001316507-26-000002 filed by Calamos Advisors LLC
    Filed (acceptance time not in the bulk data set), ingested

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