Stocks · Health care · Biological Products, (No Diagnostic Substances)

Atara Biotherapeutics, Inc.

ATRA Clue Score62
United States Fiscal year ends December CIK 0001604464
9.48
+2.71%
Close, 9 Oct 2026 · USD

Price, with every insider trade on it

Closing prices, 12 months · point at a dot for who traded, or at the line for the close
9.48 on 9 Oct 2026
18 11 4 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $15.04 14 Oct 2025 $14.61 15 Oct 2025 $15.28 16 Oct 2025 $15.25 17 Oct 2025 $14.81 20 Oct 2025 $16.04 21 Oct 2025 $15.79 22 Oct 2025 $14.63 23 Oct 2025 $14.12 24 Oct 2025 $14.49 27 Oct 2025 $15.59 28 Oct 2025 $15.21 29 Oct 2025 $14.06 30 Oct 2025 $14.05 31 Oct 2025 $14.85 3 Nov 2025 $13.85 4 Nov 2025 $12.29 5 Nov 2025 $10.75 6 Nov 2025 $11.82 7 Nov 2025 $11.81 10 Nov 2025 $12.30 11 Nov 2025 $12.56 12 Nov 2025 $12.47 13 Nov 2025 $13.39 14 Nov 2025 $13.76 17 Nov 2025 $13.10 18 Nov 2025 $13.46 19 Nov 2025 $13.74 20 Nov 2025 $13.22 21 Nov 2025 $13.68 24 Nov 2025 $14.03 25 Nov 2025 $14.57 26 Nov 2025 $14.86 28 Nov 2025 $15.10 1 Dec 2025 $13.54 2 Dec 2025 $12.22 3 Dec 2025 $12.55 4 Dec 2025 $14.20 5 Dec 2025 $14.33 8 Dec 2025 $15.08 9 Dec 2025 $15.69 10 Dec 2025 $16.83 11 Dec 2025 $17.82 12 Dec 2025 $18.00 15 Dec 2025 $17.95 16 Dec 2025 $17.58 17 Dec 2025 $17.18 18 Dec 2025 $17.23 19 Dec 2025 $17.17 22 Dec 2025 $17.86 23 Dec 2025 $17.50 24 Dec 2025 $17.59 26 Dec 2025 $17.27 29 Dec 2025 $17.99 30 Dec 2025 $17.88 31 Dec 2025 $18.09 2 Jan 2026 $17.77 5 Jan 2026 $16.86 6 Jan 2026 $14.57 7 Jan 2026 $14.94 8 Jan 2026 $17.44 9 Jan 2026 $13.67 12 Jan 2026 $5.88 13 Jan 2026 $4.37 14 Jan 2026 $4.47 15 Jan 2026 $4.62 16 Jan 2026 $4.54 20 Jan 2026 $4.32 21 Jan 2026 $4.60 22 Jan 2026 $5.00 23 Jan 2026 $5.22 26 Jan 2026 $5.29 27 Jan 2026 $5.56 28 Jan 2026 $5.50 29 Jan 2026 $5.51 30 Jan 2026 $5.20 2 Feb 2026 $5.04 3 Feb 2026 $5.04 4 Feb 2026 $4.86 5 Feb 2026 $4.51 6 Feb 2026 $4.88 9 Feb 2026 $4.98 10 Feb 2026 $4.83 11 Feb 2026 $4.59 12 Feb 2026 $4.45 13 Feb 2026 $4.45 17 Feb 2026 $4.49 18 Feb 2026 $4.43 19 Feb 2026 $4.24 20 Feb 2026 $4.18 23 Feb 2026 $4.20 24 Feb 2026 $4.21 25 Feb 2026 $5.06 26 Feb 2026 $5.26 27 Feb 2026 $5.42 2 Mar 2026 $4.91 3 Mar 2026 $5.42 4 Mar 2026 $5.39 5 Mar 2026 $5.00 6 Mar 2026 $5.17 9 Mar 2026 $6.68 10 Mar 2026 $6.29 11 Mar 2026 $6.23 12 Mar 2026 $6.90 13 Mar 2026 $6.50 16 Mar 2026 $5.87 17 Mar 2026 $5.23 18 Mar 2026 $5.00 19 Mar 2026 $5.12 20 Mar 2026 $4.91 23 Mar 2026 $4.85 24 Mar 2026 $4.99 25 Mar 2026 $4.96 26 Mar 2026 $4.71 27 Mar 2026 $4.59 30 Mar 2026 $4.32 31 Mar 2026 $4.73 1 Apr 2026 $5.17 2 Apr 2026 $4.99 6 Apr 2026 $4.87 7 Apr 2026 $4.71 8 Apr 2026 $5.01 9 Apr 2026 $4.83 10 Apr 2026 $4.65 13 Apr 2026 $4.89 14 Apr 2026 $5.15 15 Apr 2026 $5.24 16 Apr 2026 $5.24 17 Apr 2026 $5.27 20 Apr 2026 $4.99 21 Apr 2026 $4.99 22 Apr 2026 $5.18 23 Apr 2026 $4.90 24 Apr 2026 $5.01 27 Apr 2026 $4.99 28 Apr 2026 $4.73 29 Apr 2026 $4.60 30 Apr 2026 $4.77 1 May 2026 $4.90 4 May 2026 $4.88 5 May 2026 $4.76 6 May 2026 $5.15 7 May 2026 $9.93 8 May 2026 $8.34 11 May 2026 $8.78 12 May 2026 $9.81 13 May 2026 $10.48 14 May 2026 $9.59 15 May 2026 $9.58 18 May 2026 $9.15 19 May 2026 $9.41 20 May 2026 $9.45 21 May 2026 $9.34 22 May 2026 $9.80 26 May 2026 $9.61 27 May 2026 $10.54 28 May 2026 $11.26 29 May 2026 $10.51 1 Jun 2026 $10.28 2 Jun 2026 $9.90 3 Jun 2026 $9.63 4 Jun 2026 $10.27 5 Jun 2026 $9.92 8 Jun 2026 $9.58 9 Jun 2026 $9.77 10 Jun 2026 $9.86 11 Jun 2026 $10.46 12 Jun 2026 $10.41 15 Jun 2026 $9.96 16 Jun 2026 $9.62 17 Jun 2026 $9.67 18 Jun 2026 $10.07 22 Jun 2026 $10.61 23 Jun 2026 $11.16 24 Jun 2026 $10.55 25 Jun 2026 $10.22 26 Jun 2026 $10.51 29 Jun 2026 $11.17 30 Jun 2026 $11.48 1 Jul 2026 $11.37 2 Jul 2026 $11.65 6 Jul 2026 $10.88 7 Jul 2026 $10.26 8 Jul 2026 $9.65 9 Jul 2026 $9.95 10 Jul 2026 $9.76 13 Jul 2026 $8.67 14 Jul 2026 $8.04 15 Jul 2026 $8.55 16 Jul 2026 $8.72 17 Jul 2026 $8.39 20 Jul 2026 $8.29 21 Jul 2026 $8.63 22 Jul 2026 $8.13 23 Jul 2026 $8.17 24 Jul 2026 $7.90 27 Jul 2026 $7.71 28 Jul 2026 $7.81 29 Jul 2026 $8.06 30 Jul 2026 $8.17 31 Jul 2026 $8.38 3 Aug 2026 $8.55 4 Aug 2026 $8.77 5 Aug 2026 $8.54 6 Aug 2026 $8.25 7 Aug 2026 $8.45 10 Aug 2026 $8.61 11 Aug 2026 $8.94 12 Aug 2026 $9.23 13 Aug 2026 $8.51 14 Aug 2026 $8.09 17 Aug 2026 $8.36 18 Aug 2026 $8.72 19 Aug 2026 $9.60 20 Aug 2026 $9.38 21 Aug 2026 $9.70 24 Aug 2026 $9.46 25 Aug 2026 $9.84 26 Aug 2026 $9.38 27 Aug 2026 $9.25 28 Aug 2026 $9.20 31 Aug 2026 $8.90 1 Sep 2026 $9.02 2 Sep 2026 $9.44 3 Sep 2026 $9.53 4 Sep 2026 $9.76 8 Sep 2026 $10.23 9 Sep 2026 $9.91 10 Sep 2026 $9.89 11 Sep 2026 $9.38 14 Sep 2026 $9.25 15 Sep 2026 $9.44 16 Sep 2026 $10.11 17 Sep 2026 $9.71 18 Sep 2026 $9.69 21 Sep 2026 $9.38 22 Sep 2026 $8.93 23 Sep 2026 $8.56 24 Sep 2026 $8.54 25 Sep 2026 $8.81 28 Sep 2026 $8.37 29 Sep 2026 $8.05 30 Sep 2026 $8.50 1 Oct 2026 $8.46 2 Oct 2026 $9.48 5 Oct 2026 $9.40 6 Oct 2026 $9.75 7 Oct 2026 $9.37 8 Oct 2026 $9.23 9 Oct 2026 $9.48 Grant-Huerta Yanina Chief Accounting Officer Sold at will $23.79K 17 Nov 2025 · at $13.19 · 5.1% of stake Nguyen AnhCo President and CEO Sold at will $38.44K 17 Nov 2025 · at $13.19 · 4.3% of stake Panacea Innovation Ltd 10% owner Sold at will $489.02K 12 Jan 2026 · at $6.07 · 5.7% of stake Grant-Huerta Yanina Chief Accounting Officer Sold at will $10.69K 2 Mar 2026 · at $5.08 · 6.2% of stake Nguyen AnhCo President and CEO Sold at will $15.24K 2 Mar 2026 · at $5.09 · 4.6% of stake Panacea Innovation Ltd 10% owner Sold at will $3.17M 7 May 2026 · at $10.10 · 23.7% of stake EcoR1 Capital, LLC 10% owner Bought $4.74M 7 May 2026 · at $9.35 · 48.6% of stake Grant-Huerta Yanina Chief Accounting Officer Sold at will $22.04K 18 May 2026 · at $9.13 · 4.6% of stake Nguyen AnhCo President and CEO Sold at will $47.84K 18 May 2026 · at $9.13 · 3.7% of stake Nguyen AnhCo President and CEO Sold at will $40.88K 17 Aug 2026 · at $8.08 · 3.7% of stake Cherry Brian N Director Bought $999.99K 4 Sep 2026 · at $9.60 · 167% of stake
2 buys9 sales at will0 planned sales

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$120.77M
Net income
$32.69M
Free cash flow
$50.94M
Operating margin
29.7%
Net margin
27.1%
Revenue growth, 1 yr
-6.3%

Revenue and net income

Fiscal years, as filed with the SEC · point at a year for the detail
0K -307M FY20 Fiscal year 2020 Revenue $0.00 Net income $306.62M Margin n/a 0K -340M FY21 Fiscal year 2021 Revenue $0.00 Net income $340.14M Margin n/a 64M -228M FY22 Fiscal year 2022 Revenue $63.57M Net income $228.30M Margin -359.1% 9M -276M FY23 Fiscal year 2023 Revenue $8.57M Net income $276.13M Margin -3,220.9% · growth -86.5% 129M -85M FY24 Fiscal year 2024 Revenue $128.94M Net income $85.40M Margin -66.2% · growth +1,404.0% 121M 33M FY25 Fiscal year 2025 Revenue $120.77M Net income $32.69M Margin 27.1% · growth -6.3%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
4 Sep 2026 Cherry Brian N
Director
Bought $999.99K 167%
17 Aug 2026 Nguyen AnhCo
President and CEO
Sold at will $40.88K 3.7%
18 May 2026 Nguyen AnhCo
President and CEO
Sold at will $47.84K 3.7%
18 May 2026 Grant-Huerta Yanina
Chief Accounting Officer
Sold at will $22.04K 4.6%
7 May 2026 EcoR1 Capital, LLC
10% owner
Bought $4.74M 48.6%
7 May 2026 Panacea Innovation Ltd
10% owner
Sold at will $3.17M 23.7%