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RUSH ISLAND MANAGEMENT, LP: MAC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of RUSH ISLAND MANAGEMENT, LP on MAC, newest first. How the timeline and the estimate are built.

RUSH ISLAND MANAGEMENT, LP held 2,068,800 MAC 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 2,068,800 shares
    Change vs previous 13F not available

    3.45% of the 13F portfolio, value $52,113,072.

    13F-HR 0001214659-26-010384 filed by RUSH ISLAND MANAGEMENT, LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec ยง4.2).