COLIN WALSH, a director at $ATTO, sold 100 shares of the company on 08-05-2026 for an estimated $2,211. We received data on the trade from a recent SEC filing. This was a sale of approximately 0.1% of their shares of this class of stock. Following this trade, they now own 76,295 shares of this class of $ATTO stock.

$ATTO Insider Trading Activity

$ATTO insiders have traded $ATTO stock on the open market 55 times in the past 6 months. Of those trades, 9 have been purchases and 46 have been sales.

Here’s a breakdown of recent trading of $ATTO stock by insiders over the last 6 months:

• SACHS GROUP INC GOLDMAN has made 2 purchases buying 585,000 shares for an estimated $10,285,000 and 23 sales selling 105,807 shares for an estimated $2,251,657.
• COLIN WALSH has made 2 purchases buying 585,000 shares for an estimated $10,285,000 and 23 sales selling 105,807 shares for an estimated $2,251,657.
• GROUP, LLC REDMILE has made 2 purchases buying 600,000 shares for an estimated $10,200,000 and 0 sales.
• LIFE SCIENCES XI, L.P. FRAZIER purchased 588,235 shares for an estimated $9,999,995
• GLOBAL STRATEGIC FUND IV, L.P. VENBIO purchased 382,352 shares for an estimated $6,499,984
• SANOFI purchased 300,000 shares for an estimated $5,100,000

To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.

This article is not financial advice. See Quiver Quantitative's disclaimers for more information.

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