Three Equifax Inc. senior executives sold shares worth nearly $1.8 million in the working day after the company discovered a security transgres that may have compromised information on about 143 million U.S. consumers.

The trio had not yet been informed of the accident, the company said.

The credit-reporting service said late Thursday in a statement that it discovered the intrusion on July 29. Regulatory filings been demonstrated that 3 days later, Chief Financial Officer John Gamble sold shares worth $946,374 and Joseph Loughran, chairperson of U.S. information solutions, exerted options to dispose of inventory worth $584,099. Rodolfo Ploder, president of workforce answers, sold $250,458 of stock on Aug. 2. None of the filings lists the transactions as being part of 10 b5-1 scheduled trading plans.

The three” sold a small percentage of their Equifax shares ,” Ines Gutzmer, a spokeswoman for the Atlanta-based corporation, was indicated in an emailed statement. They” “havent had” knowledge that an intrusion had occurred at the time .”

Equifax said in its statement that intruders accessed epithets, Social security systems numbers, birth dates, addresses and driver’s-license numbers, as well as credit-card numbers for about 209,000 consumers. The incident ranks among the largest cybersecurity transgress in history.

Equifax shares tumbled 13 percentage to $124 in extended trading at 7:49 p.m. in New York.