Insider Transactions last 24 months for Atara Biotherapeutics, Inc.  -  NSDQ: ATRA

 
Transactions
All Buy Sell Option Exercise
Filer's Name
Relationship/
Title
Trans.
Date
Trans. Type
Ownership Type
Security Type
Shares
Price
Trans.
Value
Total Shares Owned
Panacea Innovation LtdOther03/17/2026DFIndirectCOM5$5.23$26.15307,894
Panacea Innovation LtdOther03/17/2026AMIndirectCOM259,163$0.00$25.92307,899
Grant-Huerta YaninaChief Accounting Officer03/09/2026AADirectCOM20,300$0.00$0.0052,050
Nguyen AnhcoPresident and CEO03/09/2026AADirectCOM81,100$0.00$0.00143,078
Nguyen AnhcoPresident and CEO03/02/2026DSDirectCOM1,442$5.09$7,335.4561,978
Nguyen AnhcoPresident and CEO03/02/2026DSDirectCOM1,298$5.09$6,601.6363,420
Nguyen AnhcoPresident and CEO03/02/2026DSDirectCOM58$5.08$294.6464,718
Nguyen AnhcoPresident and CEO03/02/2026DSDirectCOM198$5.08$1,005.6464,776
Grant-Huerta YaninaChief Accounting Officer03/02/2026DSDirectCOM100$5.08$508.3031,750
Grant-Huerta YaninaChief Accounting Officer03/02/2026DSDirectCOM377$5.08$1,915.9131,850
Grant-Huerta YaninaChief Accounting Officer03/02/2026DSDirectCOM1,603$5.08$8,144.8432,227
Grant-Huerta YaninaChief Accounting Officer03/02/2026DSDirectCOM24$5.08$121.8533,830
Panacea Innovation LtdOther01/12/2026DSIndirectCOM80,554$6.07$489,019.171,324,446
Panacea Innovation LtdOther11/28/2025DFIndirectCOM1$14.03$14.0348,736
Panacea Innovation LtdOther11/28/2025AMIndirectCOM48,737$0.00$4.8748,737
Grant-Huerta YaninaChief Accounting Officer11/17/2025DSDirectCOM74$13.19$976.1333,454
Grant-Huerta YaninaChief Accounting Officer11/17/2025DSDirectCOM85$13.19$1,120.9833,528
Grant-Huerta YaninaChief Accounting Officer11/17/2025DSDirectCOM1,645$13.19$21,690.9733,613
Nguyen AnhcoPresident and CEO11/17/2025DSDirectCOM56$13.19$738.5364,974
Nguyen AnhcoPresident and CEO11/17/2025DSDirectCOM2,859$13.19$37,698.7765,030
Grant-Huerta YaninaChief Accounting Officer08/18/2025DSDirectCOM1,668$11.61$19,372.1535,258
Grant-Huerta YaninaChief Accounting Officer08/18/2025DSDirectCOM86$11.61$998.7236,926
Grant-Huerta YaninaChief Accounting Officer08/18/2025DSDirectCOM55$11.61$638.5037,012
Nguyen AnhcoPresident and CEO08/18/2025DSDirectCOM1,620$11.62$18,819.5467,889
Nguyen AnhcoPresident and CEO08/18/2025DSDirectCOM1,281$11.62$14,878.8269,509
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Transaction Type Key
First letter: A = Acquired, D = Disposed
Second letter:
A = Grant, award or other acquisition pursuant to Rule 16b-3(d) C = Conversion of derivative security | D = Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | E = Expiration of short derivative position | F = Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. | G = Gift | H = Expiration (or cancellation) of long derivative position with value received | I = Discretionary transaction in accordance with Rule 16b-3(f) | J = Other | L = Small acquisition under Rule 16a-6 | M = Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | O = Exercise of out-of-the-money derivative security | P = Open market or private purchase | S = Open market or private sale | U = Disposition pursuant to a tender of shares in a change of control transaction | W = Acquisition or disposition by will or the laws of descent and distribution | X = Exercise of in-the-money or at-the-money derivative security | Z = Deposit into or withdrawal from voting trust 		Export Table Data to Excel Send to Excel