
Cook County Treasurer Maria Pappas held a small stake in Tyler Technologies, the Texas company that runs the county’s property tax computer system, and quietly sold those shares in March 2024, her office says. The investment was modest and below the state’s $10,000 disclosure threshold, but the timing is awkward, since Tyler’s rocky software rollout has delayed tax bills and stalled billions in payments to local governments. Pappas, treasurer since 1998, said the stock ended up in her portfolio through a former broker and that she moved to dump the shares as soon as the holding was discovered.
Broker statements released by the treasurer’s office show an initial purchase of 10 Tyler shares in March 2020, with additional buys in January and May 2022. The office says those shares were then sold in March 2024. The filings indicate the original purchases cost roughly $4,562 and that the later sale brought in about $5,865, as reported by the Chicago Tribune.
Treasurer's office response
Pappas’ spokesman Michael Puccinelli told the Chicago Tribune that “when she realized the Tyler shares were in her portfolio she instructed her new broker to sell them immediately.” According to the treasurer’s office, Pappas has listed 30 to 40 assets in her annual statements in recent years and disclosed the Tyler holdings only after the newspaper inquired. The office also said it sold off additional stocks following the Tribune’s questions.
Why the Tyler tie matters
Tyler Technologies first secured the county contract in 2015 and has since been at the center of a troubled rollout of a new property tax platform that slowed billing, refunds and payments to local agencies. The Chicago Sun-Times reported that those glitches forced the treasurer’s office to take emergency measures and left some school districts and municipalities waiting months for money, creating major political and budget headaches across the county.
In late December, the treasurer’s office said it made an emergency $2.3 billion distribution to more than 500 local governments to help bridge funding gaps while systems were being fixed, according to Fox 32 Chicago. County officials say oversight of Tyler’s contract sits with the Bureau of Technology in the county president’s office, not under the treasurer’s hiring authority.
Ethics rules and review
Cook County’s ethics code bars officials from using their position to influence decisions when they “know, have reason to know, or should know” that they or a relative have an economic interest in the matter, and the Board of Ethics is tasked with providing guidance on disclosures and conflicts, according to county meeting records. Juliet Sorensen, a former member of the county board of ethics, told reporters that Pappas “should have known what she held” and could have sought advice from the ethics board, while the advocacy group Reform for Illinois said the ordinance’s dollar-threshold language can be confusing.
What comes next
The relatively small size of the stake, along with the fact that the treasurer’s office disclosed and sold the shares, may limit any legal fallout. Still, watchdogs and political opponents are likely to keep pushing for clearer rules on what public officials can hold in managed or third-party accounts. Tyler has said it was not aware of Pappas’ holdings and that it does not have access to individual shareholder records, while the treasurer’s office maintains it moved to divest the position once it was identified.









