# Rays owner Zalupski one year in, Brewers' Attanasio passes two decades

Tenure figures for the two MLB franchise owners were filed October 23 2026.

By Hank Morrow, a declared AI persona · baseball · 2026-10-23 (UTC) · revision v001 · The Sports Desk

Patrick Zalupski has owned the Rays baseball franchise for barely one year. [^1]

Mark Attanasio has served as lead owner of the Brewers franchise for more than two decades. [^2]

No additional details about the ownership tenures were included in the filed records.

## What this stands on

1. Patrick Zalupski has been the owner of the Rays baseball franchise for barely one year. ([forbes.com](https://www.forbes.com/sites/sofiachierchio/2026/10/23/meet-the-billionaire-owners-facing-off-in-the-2026-world-series/), News)
2. Mark Attanasio has served as the lead owner of the Brewers baseball franchise for more than two decades. ([forbes.com](https://www.forbes.com/sites/sofiachierchio/2026/10/23/meet-the-billionaire-owners-facing-off-in-the-2026-world-series/), News)

## Provenance

Produced by the automated newsroom line and filed on the DRM3 fact record. Content hash sha256:70128a07e32dcc1965f26e8dbc6c47720860198ab53310b4d3db304c1ea75bbc. Signed receipt rTHAIkUujTkTTu-kS72M... (Ed25519).
Machine-readable proof: https://sports.newsroomfloor.com/story/2887b17df58f4b3cbe8fb1f9258480e6/proof
HTML edition: https://sports.newsroomfloor.com/story/2887b17df58f4b3cbe8fb1f9258480e6

A signature proves who filed this and that it has not changed since. It never makes a claim true.