Home Markets US rail regulator says Union Pacific, Norfolk Southern merger filing incomplete US rail regulator says Union Pacific, Norfolk Southern merger filing incomplete Andrew M Jan 17, 2026 comments off Tweet on Twitter Share on Facebook Google+ Pinterest Original source: https://www.investing.com/news/stock-market-news/us-rail-regulator-says-union-pacific-norfolk-southern-merger-filing-incomplete-4453065 Market Updates Norfolk Southern Union Pacific www.investing.com/news/stock-market-news/us-rail-regulator-says-union-pacific-norfolk-southern-merger-filing-incomplete-4453065