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Roncarolo Maria Grazia

Disclosed activity across 1 company

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78565
SEC CIK
0001811671

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Atara Biotherapeutics, Inc.ATRA · Entity 6828DirectorJune 10, 2025June 12, 2025

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Atara Biotherapeutics, Inc.

Report date June 10, 2025 · Filed June 12, 2025

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect17,368 Reported balance After 2025-06-10 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2025-06-10 · Grant · Acquired 7,828 · Balance 17,368

F1: These restricted stock units shall vest on the earlier of June 10, 2026 or the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service.

F2: This amount reflects the 1:25 reverse stock split effected by the Issuer on June 20, 2024.

Filing footnotes · ownership attribution and instrument terms

F1: These restricted stock units shall vest on the earlier of June 10, 2026 or the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service.

F2: This amount reflects the 1:25 reverse stock split effected by the Issuer on June 20, 2024.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
June 10, 2025 Filed Jun 12, 2025 20:39 UTC Atara Biotherapeutics, Inc. ATRA · Entity 6828 GrantCommon Stock 7,828 $0.00 $0.00
Disclosure

SEC source: 0000905148-25-002139 · form4.xml · nonDerivative · entry 1

Roncarolo Maria Grazia · CIK 0001811671 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,368

F1 · shares: These restricted stock units shall vest on the earlier of June 10, 2026 or the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service.

F2 · balance_after: This amount reflects the 1:25 reverse stock split effected by the Issuer on June 20, 2024.

Read SEC document
March 31, 2024 Filed Apr 2, 2024 18:12 UTC Atara Biotherapeutics, Inc. ATRA · Entity 6828 GrantCommon Stock 150,000 $0.00 $0.00
Disclosure

SEC source: 0000905148-24-001058 · form4.xml · nonDerivative · entry 1

Roncarolo Maria Grazia · CIK 0001811671 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 238,500

F1 · shares: These restricted stock units shall vest on the date of the Issuer's annual meeting of stockholders for the calendar year 2025, subject to the Reporting Person's continuous service.

Read SEC document
May 31, 2023 Filed Jun 2, 2023 19:09 UTC Atara Biotherapeutics, Inc. ATRA · Entity 6828 GrantNon-Qualified Stock Option (Right to Buy) · Derivative 79,500 $0.00 Strike: $1.53 $0.00
Disclosure

SEC source: 0001140361-23-028154 · form4.xml · derivative · entry 2

Roncarolo Maria Grazia · CIK 0001811671 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,500

Underlying: Common Stock · 79,500 shares

Expires 2033-05-30

F2 · derivative.exercise_date: The option shall vest on the earlier of May 31, 2024 or the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service.

Read SEC document
May 31, 2023 Filed Jun 2, 2023 19:09 UTC Atara Biotherapeutics, Inc. ATRA · Entity 6828 GrantCommon Stock 57,000 $0.00 $0.00
Disclosure

SEC source: 0001140361-23-028154 · form4.xml · nonDerivative · entry 1

Roncarolo Maria Grazia · CIK 0001811671 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 88,500

F1 · shares: These restricted stock units shall vest on the earlier of May 31, 2024 or the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service.

Read SEC document
June 23, 2022 Filed Jun 27, 2022 16:48 UTC Atara Biotherapeutics, Inc. ATRA · Entity 6828 GrantNon-Qualified Stock Option (Right to Buy) · Derivative 31,500 $0.00 Strike: $7.35 $0.00
Disclosure

SEC source: 0001140361-22-024162 · form4.xml · derivative · entry 2

Roncarolo Maria Grazia · CIK 0001811671 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,500

Underlying: Common Stock · 31,500 shares

Expires 2032-06-22

F2 · derivative.exercise_date: The option shall vest on the earlier of June 23, 2023 or the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service.

Read SEC document
June 23, 2022 Filed Jun 27, 2022 16:48 UTC Atara Biotherapeutics, Inc. ATRA · Entity 6828 GrantCommon Stock 20,500 $0.00 $0.00
Disclosure

SEC source: 0001140361-22-024162 · form4.xml · nonDerivative · entry 1

Roncarolo Maria Grazia · CIK 0001811671 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,500

F1 · shares: These restricted stock units shall vest on the earlier of June 23, 2023 or the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service.

Read SEC document
June 08, 2021 Filed Jun 9, 2021 19:11 UTC Atara Biotherapeutics, Inc. ATRA · Entity 6828 GrantNon-Qualified Stock Option (Right to Buy) · Derivative 17,500 $0.00 Strike: $13.80 $0.00
Disclosure

SEC source: 0001140361-21-020439 · form4.xml · derivative · entry 2

Roncarolo Maria Grazia · CIK 0001811671 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,500

Underlying: Common Stock · 17,500 shares

Expires 2031-06-07

F2 · derivative.exercise_date: The option shall vest on the earlier of June 8, 2022 or the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service.

Read SEC document
June 08, 2021 Filed Jun 9, 2021 19:11 UTC Atara Biotherapeutics, Inc. ATRA · Entity 6828 GrantCommon Stock 11,000 $0.00 $0.00
Disclosure

SEC source: 0001140361-21-020439 · form4.xml · nonDerivative · entry 1

Roncarolo Maria Grazia · CIK 0001811671 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,000

F1 · shares: These restricted stock units shall vest on the earlier of June 8, 2022 or the date of the next annual meeting of stockholders, subject to the Reporting Person's continuous service.

Read SEC document
May 11, 2020 Filed May 12, 2020 16:08 UTC Atara Biotherapeutics, Inc. ATRA · Entity 6828 GrantNon-Qualified Stock Option (Right to Buy) · Derivative 59,500 $0.00 Strike: $10.25 $0.00
Disclosure

SEC source: 0001209191-20-028472 · doc4.xml · derivative · entry 1

Roncarolo Maria Grazia · CIK 0001811671 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,500

Underlying: Common Stock · 59,500 shares

Expires 2030-05-10

F1 · derivative.exercise_date: 1/3rd of the shares will vest on the first, second and third anniversaries of the grant date, subject to the Director's Continuous Service (as defined in the Plan).

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.