William K Heiden Atara Biotherapeutics, Inc. (ATRA) insider trading activity

ATRA Quotes by TradingView

William K Heiden is of Atara Biotherapeutics, Inc.. Currently has a direct ownership of 22,188 shares of ATRA, which is worth approximately $215,445. The most recent transaction as insider was on Jun 10, 2025, when has been sold 7,828 shares (Common Stock) at a price of $0.0 per share, resulting in proceeds of $0. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 22.2K
93.82% 3M change
93.82% 12M change
Total Value Held $215,445

WILLIAM K HEIDEN Transaction History

Date Transaction Value Shares Traded Shares Held Form
Jun 10 2025
BUY
Grant, award, or other acquisition
-
7,828 Added 26.08%
22,188 Common Stock
Mar 31 2024
BUY
Grant, award, or other acquisition
-
150,000 Added 29.47%
359,000 Common Stock
Nov 10 2023
BUY
Open market or private purchase
$25,000 $0.25 p/Share
100,000 Added 32.36%
209,000 Common Stock
May 31 2023
BUY
Grant, award, or other acquisition
-
57,000 Added 34.34%
109,000 Common Stock
Jun 23 2022
BUY
Grant, award, or other acquisition
-
20,500 Added 28.28%
52,000 Common Stock
Jun 08 2021
BUY
Grant, award, or other acquisition
-
11,000 Added 25.88%
31,500 Common Stock

Also insider at

MGNX
MACROGENICS INC Healthcare
Director
WKH

William K Heiden

South San Francisco, CA

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