(a) A municipal officer shall not be financially interested directly in the officer's own name or indirectly in the name of any other person, association, trust, or corporation, in any contract, work, or business of the municipality or in the sale of any article whenever the expense, price, or consideration of the contract, work, business, or sale is paid either from the treasury or by an assessment levied by statute or ordinance. A municipal officer shall not be interested, directly or indirectly, in the purchase of any property that (i) belongs to the municipality, (ii) is sold for taxes or assessments, or (iii) is sold by virtue of legal process at the suit of the municipality. For the purposes of this Section only, however, a municipal officer shall not be deemed interested if the officer is an employee of a company or owns or holds an interest of 1% or less in the municipal officer's individual name in a company, or both, that company is involved in the transaction of business with the municipality, and that company's stock is traded on a nationally recognized securities market, provided the interested member (i) publicly discloses the fact that he or she is an employee or holds an interest of 1% or less in a company before deliberation of the proposed award of the contract; (ii) refrains from evaluating, recommending, approving, deliberating, or otherwise participating in the negotiation, approval, or both, of the contract, work, or business; (iii) abstains from voting on the award of the contract though he or she shall be considered present for purposes of establishing a quorum; and (iv) the contract is approved by a majority vote of those members currently holding office. A municipal officer shall not be deemed interested if the officer owns or holds an interest of 1% or less, not in the officer's individual name but through a mutual fund or exchange-traded fund, in a company, that company is involved in the transaction of business with the municipality, and that company's stock is traded on a nationally recognized securities market.
This Section does not prohibit any person serving on a municipal advisory panel or commission or nongoverning board or commission from having an interest in a contract, work, or business of the municipality unless the municipal officer's duties include evaluating, recommending, approving, or voting to recommend or approve the contract, work, or business.