{"person":{"slug":"hamann-jennifer-l","name":"Hamann Jennifer L","type":"insider","q":["hamann","jennifer"],"role":"EVP & CHIEF FINANCIAL OFFICER","tradeCount":1,"topTickers":["UNP"],"cat":"insider","buys":1,"sells":0,"disclosedVolume":2109,"estPnl":0,"pnlCoverage":0,"netFlow":2109,"lastTrade":"2026-09-10","firstTrade":"2026-09-10","medianLagDays":1,"rankTrades":3421,"rankVolume":5143,"cohortSize":7107},"series":[["2026-09-10",0,2109,1,0,2109]],"months":[["2026-09",1,0,2109]],"lagBuckets":[1,0,0,0,0,0],"tickers":[{"ticker":"UNP","buys":1,"sells":0,"vol":2109,"pnl":0,"first":"2026-09-10","last":"2026-09-10"}],"trades":[{"id":"insider:2026-09-10:UNP:709","source":"form4","personId":"hamann-jennifer-l","personName":"Hamann Jennifer L","role":"EVP & CHIEF FINANCIAL OFFICER","onBehalfOf":"self","issuerName":"UNP","ticker":"UNP","side":"buy","shares":7.38,"pricePerShare":285.78,"transactionDate":"2026-09-10","filedDate":"2026-09-11","disclosureLagDays":1,"sourceUrl":"https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany"}]}