Schmidt sold the shares with an average price between $676.87 and $688.27. Mountain View, Calif.-based Google's stock closed at $688.01 on Monday. The sales were recorded one day after Schmidt sold 103,193 shares worth around $69.3 million, bringing his two-day total to 153,193 shares and $103.5 million.
In February, Schmidt filed a plan with the SEC to sell a total of 2.4 million shares of Google's Class A stock for around $1.45 billion. Before this year's sales, Schmidt owned around 9.1 million Class A and Class B shares, or 2.8 percent of Google's stock.
The company's shares fell $6.52, or 0.95 percent, to $681.49 in Thursday afternoon trading.
Matthew Livingston contributed research.