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Panacea Innovation Ltd

SEC insider (Form 3/4/5 filer). CIK 0002010692. 10% Owner at Atara Biotherapeutics, Inc. (ATRA). 8 reported Form 4/5 transactions since Sep 2024; latest on May 7, 2026. Located in GRAND CAYMAN.

Companies Panacea Innovation Ltd has filed insider reports for

  • Atara Biotherapeutics, Inc. (ATRA): 10% Owner
Panacea Innovation Ltd profile photo

Panacea Innovation Ltd

CIK: 0002010692

Transaction Breakdown

Open Market Buys (P)2 (25.0%)

High conviction signal

Open Market Sales (S)2 (25.0%)

Position reduction

Option Exercises (M)2 (25.0%)

Derivative conversions

Awards (A)0 (0.0%)

Compensation grants

Other (G, F, J, C, D, …)2 (25.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

Atara Biotherapeutics, Inc. logo
ATRA

Atara Biotherapeutics, Inc.

10% Owner

Discretionary Trading P&L

Holdings

Transaction History (8 total)

  • Atara Biotherapeutics, Inc. logo
    ATRA

    Atara Biotherapeutics, Inc.

    May 7, 2026
    Sale
    Indirect
    313.4K shares at avg. $10.10$3.2M
  • Atara Biotherapeutics, Inc. logo
    ATRA

    Atara Biotherapeutics, Inc.

    Mar 17, 2026
    Exercise
    Indirect
    259.2K shares at avg. $0.00$25.916
  • Atara Biotherapeutics, Inc. logo
    ATRA

    Atara Biotherapeutics, Inc.

    Mar 17, 2026
    Tax Payment
    Indirect
    5 shares at avg. $5.23$26.15
  • Atara Biotherapeutics, Inc. logo
    ATRA

    Atara Biotherapeutics, Inc.

    Jan 12, 2026
    Sale
    Indirect
    80.6K shares at avg. $6.07$489K
  • Atara Biotherapeutics, Inc. logo
    ATRA

    Atara Biotherapeutics, Inc.

    Nov 28, 2025
    Exercise
    Indirect
    48.7K shares at avg. $0.00$4.874
  • Atara Biotherapeutics, Inc. logo
    ATRA

    Atara Biotherapeutics, Inc.

    Nov 28, 2025
    Tax Payment
    Indirect
    1 shares at avg. $14.03$14.03
  • Atara Biotherapeutics, Inc. logo
    ATRA

    Atara Biotherapeutics, Inc.

    Aug 15, 2025
    Purchase
    Indirect
    55K shares at avg. $12.19$670K
  • Atara Biotherapeutics, Inc. logo
    ATRA

    Atara Biotherapeutics, Inc.

    Jul 17, 2025
    Purchase
    Indirect
    19.3K shares at avg. $9.64$186K

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