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Pertento Partners LLP: ATRO position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Pertento Partners LLP on ATRO, newest first. How the timeline and the estimate are built.

Pertento Partners LLP held 993,637 ATRO shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 993,637 shares
    Change vs previous 13F +178,304 shares

    5.8% of the 13F portfolio, value $80,742,943.

    13F-HR 0001894571-26-000007 filed by Pertento Partners LLP
    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 815,333 shares
    Change vs previous 13F not available

    5.77% of the 13F portfolio, value $54,407,171.

    13F-HR 0001894571-26-000006 filed by Pertento Partners LLP
    Filed (acceptance time not in the bulk data set), ingested

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