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ATRA

WEAK

Atara Biotherapeutics, Inc.

CIK: 0001604464

Strong Sell (70% confidence)

Last activity: Jan 12, 2026

Financial Metrics

As of Dec 31, 2024 (10-K)

Revenue $128.94M
Net Income -$85.40M
Total Cash $42.50M

Insider Roster (3 total, 3 active)

Insider Buys Sells Net Value Holdings
Panacea Innovation Ltd
OTHER
0 1 -$489K
1,324,446 shares
$8.04M
Nguyen AnhCo
President and CEO
0 2 -$38K
65,030 shares
$857K
Grant-Huerta Yanina
Chief Accounting Officer
0 3 -$24K
33,613 shares
$443K

Recent Transactions

SELL Panacea Innovation Ltd (OTHER)

80,554 shares @ $6.07

$489K

Jan 12, 2026

Conviction: | View SEC Filing →
SELL Nguyen AnhCo (President and CEO)

2,859 shares @ $13.19

$38K

Nov 17, 2025

Conviction: | View SEC Filing →
SELL Grant-Huerta Yanina (Chief Accounting Officer)

1,645 shares @ $13.19

$22K

Nov 17, 2025

Conviction: | View SEC Filing →
SELL Grant-Huerta Yanina (Chief Accounting Officer)

85 shares @ $13.19

$1K

Nov 17, 2025

Conviction: | View SEC Filing →
SELL Grant-Huerta Yanina (Chief Accounting Officer)

74 shares @ $13.19

$976

Nov 17, 2025

Conviction: | View SEC Filing →
SELL Nguyen AnhCo (President and CEO)

56 shares @ $13.19

$739

Nov 17, 2025

Conviction: | View SEC Filing →

⚠️ Important Disclaimer

• This is AI-generated analysis for educational purposes only, not financial advice.

• Insider trading data is derived from SEC Form 4 filings and may contain errors.

• Always conduct your own research and consult qualified financial advisors before making investment decisions.