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HJ

SEC Insider//CIK 0001573160

Huang James

CIK 00015731601 companyGRAND CAYMAN, E9

Transactions

9

Companies

1

Filings

1

CIK

0001573160

Recent Transactions

9 trades

Exercise/Conversion
Atara Biotherapeutics, Inc.$ATRA
Common Stock
2025-11-28$0.00/sh+48,737→ 48,737 total
Tax Payment
Atara Biotherapeutics, Inc.$ATRA
Common Stock
2025-11-28$14.03/sh−1→ 48,736 total
Exercise/Conversion
Atara Biotherapeutics, Inc.$ATRA
Warrants
2025-11-28$6.61/sh−48,737→ 259,163 total
Exercise/Conversion
Atara Biotherapeutics, Inc.$ATRA
Common Stock
2025-11-28$0.00/sh+48,737→ 48,737 total
Tax Payment
Atara Biotherapeutics, Inc.$ATRA
Common Stock
2025-11-28$14.03/sh−1→ 48,736 total
Exercise/Conversion
Atara Biotherapeutics, Inc.$ATRA
Warrants
2025-11-28$6.61/sh−48,737→ 259,163 total
Exercise/Conversion
Atara Biotherapeutics, Inc.$ATRA
Common Stock
2025-11-28$0.00/sh+48,737→ 48,737 total
Tax Payment
Atara Biotherapeutics, Inc.$ATRA
Common Stock
2025-11-28$14.03/sh−1→ 48,736 total
Exercise/Conversion
Atara Biotherapeutics, Inc.$ATRA
Warrants
2025-11-28$6.61/sh−48,737→ 259,163 total

Companies

1

Atara Biotherapeutics, Inc.
Director, 10% Owner
$ATRA

Recent Filings

1

4
Huang James
Dec 1, 2025

Address

C/O MAPLES CORPORATE SERVICES LIMITED, UGLAND HOUSE

GRAND CAYMAN, E9, KY1-1104

View on SEC.gov