The Securities and Exchange Commission in Washington.

A former Monsanto executive who tipped the U.S. Securities and Exchange Commission to accounting improprieties involving the company's top-selling Roundup product has been awarded more than $22 million from the agency's whistleblower program, the executive's lawyer said on Tuesday.

The award of $22,437,800 was tied to an $80 million settlement between the SEC and Monsanto in February, according to the lawyer, Stuart Meissner in New York, in a statement. It is the agency's second largest under the program.