Insider Purchase: Director at $ATRA Buys 104,166 Shares

By: Quiver InsiderRadar, Automated Posted: 49 minutes ago / Sept. 8, 2026 4:22 p.m. UTC Brian N Cherry, a director at $ATRA, bought 104,166 shares of the company on 09-04-2026 for an estimated $999,993. This trade was reported by Quiver Quantitative using data from a recent SEC filing. This increased their holdings of this class of stock by approximately 167.1%. Following this trade, they now own 166,486 shares of this class of $ATRA stock. $ATRA Insider Trading Activity $ATRA insiders have traded $ATRA stock on the open market 4 times in the past 6 months. Of those trades, 1 have been purchases and 3 have been sales. Here's a breakdown of recent trading of $ATRA stock by insiders over the last 6 months: BRIAN N CHERRY purchased 104,166 shares for an estimated $999,993 ANHCO NGUYEN (President and CEO) has made 0 purchases and 2 sales selling 10,303 shares for an estimated $88,727 . . YANINA GRANT-HUERTA (Chief Accounting Officer) sold 2,414 shares for an estimated $22,036 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. $ATRA Hedge Fund Activity We have seen 14 institutional investors add shares of $ATRA stock to their portfolio, and 24 decrease their positions in their most recent quarter. Here are some of the largest recent moves: ECOR1 CAPITAL, LLC added 1,452,407 shares (+1458.3%) to their portfolio in Q2 2026, for an estimated $16,673,632 POINT72 ASSET MANAGEMENT, L.P. added 493,454 shares (+254.0%) to their portfolio in Q2 2026, for an estimated $5,664,851 ADAGE CAPITAL PARTNERS GP, L.L.C. added 150,000 shares (+21.4%) to their portfolio in Q2 2026, for an estimated $1,722,000 MARSHALL WACE, LLP removed 148,632 shares (-100.0%) from their portfolio in Q1 2026, for an estimated $703,029 ACADIAN ASSET MANAGEMENT LLC removed 92,065 shares (-70.3%) from their portfolio in Q2 2026, for an estimated $1,056,906 MACKENZIE FINANCIAL CORP removed 80,371 shares (-25.6%) from their portfolio in Q2 2026, for an estimated $922,659 GLOBEFLEX CAPITAL L P removed 77,224 shares (-100.0%) from their portfolio in Q1 2026, for an estimated $365,269 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. $ATRA Price Targets Multiple analysts have issued price targets for $ATRA recently. We have seen 2 analysts offer price targets for $ATRA in the last 6 months, with a median target of $11.5. Here are some recent targets: Ilya Zubkov from Freedom Broker set a target price of $10.0 on 05/18/2026 on 05/18/2026 John Newman from Canaccord Genuity set a target price of $13.0 on 05/08/2026 This article is not financial advice. See Quiver Quantitative's disclaimers for more information.