William Heard, a director at $ATEX, sold 46,400 shares of the company on 08-14-2026 for an estimated $4,181,094. We received data on the trade from a recent SEC filing. This was a sale of approximately 2.7% of their shares of this class of stock. Following this trade, they now own 1,670,338 shares of this class of $ATEX stock.
$ATEX Insider Trading Activity
$ATEX insiders have traded $ATEX stock on the open market 15 times in the past 6 months. Of those trades, 0 have been purchases and 15 have been sales.
Here’s a breakdown of recent trading of $ATEX stock by insiders over the last 6 months:
- CHRISTOPHER GUTTMAN-MCCABE (Chief Reg & Comm Officer) has made 0 purchases and 4 sales selling 91,437 shares for an estimated $7,539,883.
- WILLIAM HEARD sold 46,400 shares for an estimated $4,181,094
- SCOTT A. LANG (President and CEO) has made 0 purchases and 5 sales selling 35,227 shares for an estimated $3,176,376.
- GENA L ASHE (Chief Legal Officer & Corp Sec) has made 0 purchases and 2 sales selling 17,711 shares for an estimated $1,440,048.
- MAHVASH YAZDI sold 7,000 shares for an estimated $560,000
- ELENA MARQUEZ (Chief Financial Officer) sold 4,291 shares for an estimated $341,134
- MARK FLEISCHHAUER sold 3,500 shares for an estimated $279,402
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.
$ATEX Hedge Fund Activity
We have seen 100 institutional investors add shares of $ATEX stock to their portfolio, and 75 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- T. ROWE PRICE INVESTMENT MANAGEMENT, INC. added 2,348,019 shares (+inf%) to their portfolio in Q2 2026, for an estimated $241,705,075
- PRICE T ROWE ASSOCIATES INC /MD/ added 742,496 shares (+9333.7%) to their portfolio in Q2 2026, for an estimated $76,432,538
- JEFFERIES FINANCIAL GROUP INC. removed 454,508 shares (-100.0%) from their portfolio in Q1 2026, for an estimated $17,357,660
- JANE STREET GROUP, LLC removed 403,351 shares (-95.8%) from their portfolio in Q2 2026, for an estimated $41,520,951
- MILLENNIUM MANAGEMENT LLC removed 277,582 shares (-90.1%) from their portfolio in Q2 2026, for an estimated $28,574,291
- CURATED WEALTH PARTNERS LLC added 250,000 shares (+inf%) to their portfolio in Q2 2026, for an estimated $25,735,000
- FMR LLC added 235,105 shares (+173.8%) to their portfolio in Q2 2026, for an estimated $24,201,708
To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.
This article is not financial advice. See Quiver Quantitative's disclaimers for more information.
