secwatch / observer
8-K filed April 28, 2026, 7:59 PM ET ticker ACLX CIK 0001786205
M&A confidence high sentiment neutral materiality 1.00

Arcellx completes acquisition by Gilead Sciences subsidiary for $115 per share plus CVR

Arcellx, Inc.

item 2.01item 3.01item 3.03item 5.01item 5.02item 5.03item 9.01

Executive movements

Machine-extracted from this filing. Every card cites the SEC source. See all recent executive movements.

Departed

Ali Behbahani

Director
ACLX · Arcellx, Inc.
Effective
2026-04-28
Filed
April 28, 2026, 7:59 PM ET
Rami Elghandour, David Lubner, Kavita Patel, Olivia Ware, Ali Behbahani, Jill Carroll, Andrew Galligan, and Kristin Myers, being all of the directors of the Company immediately prior to the Effective Time, resigned and ceased to be directors of the Company as of the Effective Time.
Departed

David Lubner

Director
ACLX · Arcellx, Inc.
Effective
2026-04-28
Successor
Keeley Cain Wettan
Filed
April 28, 2026, 7:59 PM ET
Rami Elghandour, David Lubner, Kavita Patel, Olivia Ware, Ali Behbahani, Jill Carroll, Andrew Galligan, and Kristin Myers, being all of the directors of the Company immediately prior to the Effective Time, resigned and ceased to be directors of the Company as of the Effective Time.
Departed

Kristin Myers

Director
ACLX · Arcellx, Inc.
Effective
2026-04-28
Filed
April 28, 2026, 7:59 PM ET
Rami Elghandour, David Lubner, Kavita Patel, Olivia Ware, Ali Behbahani, Jill Carroll, Andrew Galligan, and Kristin Myers, being all of the directors of the Company immediately prior to the Effective Time, resigned and ceased to be directors of the Company as of the Effective Time.
Departed

Rami Elghandour

Chief Executive Officer
ACLX · Arcellx, Inc.
Effective
2026-04-28
Successor
Andrew D. Dickinson
Filed
April 28, 2026, 7:59 PM ET
each officer of the Company resigned and ceased to be an officer of the Company as of the Effective Time.
Appointed

Keeley Cain Wettan

Director
ACLX · Arcellx, Inc.
Effective
2026-04-28
Filed
April 28, 2026, 7:59 PM ET
the directors and officers of Purchaser as of immediately prior to the Effective Time, which consisted of Andrew D. Dickinson, Keeley Cain Wettan, and Thomas Kennedy, became the directors and officers of the Company.
Appointed

Thomas Kennedy

Director
ACLX · Arcellx, Inc.
Effective
2026-04-28
Filed
April 28, 2026, 7:59 PM ET
the directors and officers of Purchaser as of immediately prior to the Effective Time, which consisted of Andrew D. Dickinson, Keeley Cain Wettan, and Thomas Kennedy, became the directors and officers of the Company.
Appointed

Andrew D. Dickinson

Director
ACLX · Arcellx, Inc.
Effective
2026-04-28
Filed
April 28, 2026, 7:59 PM ET
the directors and officers of Purchaser as of immediately prior to the Effective Time, which consisted of Andrew D. Dickinson, Keeley Cain Wettan, and Thomas Kennedy, became the directors and officers of the Company.
Departed

Rami Elghandour

Director
ACLX · Arcellx, Inc.
Effective
2026-04-28
Successor
Andrew D. Dickinson
Filed
April 28, 2026, 7:59 PM ET
Rami Elghandour, David Lubner, Kavita Patel, Olivia Ware, Ali Behbahani, Jill Carroll, Andrew Galligan, and Kristin Myers, being all of the directors of the Company immediately prior to the Effective Time, resigned and ceased to be directors of the Company as of the Effective Time.
Departed

Jill Carroll

Director
ACLX · Arcellx, Inc.
Effective
2026-04-28
Filed
April 28, 2026, 7:59 PM ET
Rami Elghandour, David Lubner, Kavita Patel, Olivia Ware, Ali Behbahani, Jill Carroll, Andrew Galligan, and Kristin Myers, being all of the directors of the Company immediately prior to the Effective Time, resigned and ceased to be directors of the Company as of the Effective Time.
Departed

Olivia Ware

Director
ACLX · Arcellx, Inc.
Effective
2026-04-28
Filed
April 28, 2026, 7:59 PM ET
Rami Elghandour, David Lubner, Kavita Patel, Olivia Ware, Ali Behbahani, Jill Carroll, Andrew Galligan, and Kristin Myers, being all of the directors of the Company immediately prior to the Effective Time, resigned and ceased to be directors of the Company as of the Effective Time.
Appointed

Thomas Kennedy

General Counsel
ACLX · Arcellx, Inc.
Effective
2026-04-28
Filed
April 28, 2026, 7:59 PM ET
the directors and officers of Purchaser as of immediately prior to the Effective Time, which consisted of Andrew D. Dickinson, Keeley Cain Wettan, and Thomas Kennedy, became the directors and officers of the Company.
Departed

Kavita Patel

Director
ACLX · Arcellx, Inc.
Effective
2026-04-28
Successor
Thomas Kennedy
Filed
April 28, 2026, 7:59 PM ET
Rami Elghandour, David Lubner, Kavita Patel, Olivia Ware, Ali Behbahani, Jill Carroll, Andrew Galligan, and Kristin Myers, being all of the directors of the Company immediately prior to the Effective Time, resigned and ceased to be directors of the Company as of the Effective Time.
Appointed

Andrew D. Dickinson

Chief Executive Officer
ACLX · Arcellx, Inc.
Effective
2026-04-28
Filed
April 28, 2026, 7:59 PM ET
the directors and officers of Purchaser as of immediately prior to the Effective Time, which consisted of Andrew D. Dickinson, Keeley Cain Wettan, and Thomas Kennedy, became the directors and officers of the Company.
Appointed

Keeley Cain Wettan

Chief Financial Officer
ACLX · Arcellx, Inc.
Effective
2026-04-28
Filed
April 28, 2026, 7:59 PM ET
the directors and officers of Purchaser as of immediately prior to the Effective Time, which consisted of Andrew D. Dickinson, Keeley Cain Wettan, and Thomas Kennedy, became the directors and officers of the Company.
Departed

Andrew Galligan

Director
ACLX · Arcellx, Inc.
Effective
2026-04-28
Filed
April 28, 2026, 7:59 PM ET
Rami Elghandour, David Lubner, Kavita Patel, Olivia Ware, Ali Behbahani, Jill Carroll, Andrew Galligan, and Kristin Myers, being all of the directors of the Company immediately prior to the Effective Time, resigned and ceased to be directors of the Company as of the Effective Time.

Key facts

Extracted from this filing and checked against the source text.

Executive change SEC 8-K Item 5.02 confidence 0.95

Ali Behbahani resigned as Director at Arcellx, Inc..

Action
resigned
Role
Director
Exact text from the filing
Rami Elghandour, David Lubner, Kavita Patel, Olivia Ware, Ali Behbahani, Jill Carroll, Andrew Galligan, and Kristin Myers, being all of the directors of the Company immediately prior to the Effective Time, resigned and ceased to be directors of the Company as of the Effective Time.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.95

David Lubner resigned as Director at Arcellx, Inc..

Action
resigned
Role
Director
Exact text from the filing
Rami Elghandour, David Lubner, Kavita Patel, Olivia Ware, Ali Behbahani, Jill Carroll, Andrew Galligan, and Kristin Myers, being all of the directors of the Company immediately prior to the Effective Time, resigned and ceased to be directors of the Company as of the Effective Time.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.95

Kristin Myers resigned as Director at Arcellx, Inc..

Action
resigned
Role
Director
Exact text from the filing
Rami Elghandour, David Lubner, Kavita Patel, Olivia Ware, Ali Behbahani, Jill Carroll, Andrew Galligan, and Kristin Myers, being all of the directors of the Company immediately prior to the Effective Time, resigned and ceased to be directors of the Company as of the Effective Time.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.85

Rami Elghandour resigned as Chief Executive Officer at Arcellx, Inc..

Action
resigned
Role
Chief Executive Officer
Exact text from the filing
each officer of the Company resigned and ceased to be an officer of the Company as of the Effective Time.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.95

Keeley Cain Wettan was appointed as Director at Arcellx, Inc..

Action
appointed
Role
Director
Exact text from the filing
the directors and officers of Purchaser as of immediately prior to the Effective Time, which consisted of Andrew D. Dickinson, Keeley Cain Wettan, and Thomas Kennedy, became the directors and officers of the Company.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.95

Thomas Kennedy was appointed as Director at Arcellx, Inc..

Action
appointed
Role
Director
Exact text from the filing
the directors and officers of Purchaser as of immediately prior to the Effective Time, which consisted of Andrew D. Dickinson, Keeley Cain Wettan, and Thomas Kennedy, became the directors and officers of the Company.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.95

Andrew D. Dickinson was appointed as Director at Arcellx, Inc..

Action
appointed
Role
Director
Exact text from the filing
the directors and officers of Purchaser as of immediately prior to the Effective Time, which consisted of Andrew D. Dickinson, Keeley Cain Wettan, and Thomas Kennedy, became the directors and officers of the Company.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.95

Rami Elghandour resigned as Director at Arcellx, Inc..

Action
resigned
Role
Director
Exact text from the filing
Rami Elghandour, David Lubner, Kavita Patel, Olivia Ware, Ali Behbahani, Jill Carroll, Andrew Galligan, and Kristin Myers, being all of the directors of the Company immediately prior to the Effective Time, resigned and ceased to be directors of the Company as of the Effective Time.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.95

Jill Carroll resigned as Director at Arcellx, Inc..

Action
resigned
Role
Director
Exact text from the filing
Rami Elghandour, David Lubner, Kavita Patel, Olivia Ware, Ali Behbahani, Jill Carroll, Andrew Galligan, and Kristin Myers, being all of the directors of the Company immediately prior to the Effective Time, resigned and ceased to be directors of the Company as of the Effective Time.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.95

Olivia Ware resigned as Director at Arcellx, Inc..

Action
resigned
Role
Director
Exact text from the filing
Rami Elghandour, David Lubner, Kavita Patel, Olivia Ware, Ali Behbahani, Jill Carroll, Andrew Galligan, and Kristin Myers, being all of the directors of the Company immediately prior to the Effective Time, resigned and ceased to be directors of the Company as of the Effective Time.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.85

Thomas Kennedy was appointed as General Counsel at Arcellx, Inc..

Action
appointed
Role
General Counsel
Exact text from the filing
the directors and officers of Purchaser as of immediately prior to the Effective Time, which consisted of Andrew D. Dickinson, Keeley Cain Wettan, and Thomas Kennedy, became the directors and officers of the Company.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.95

Kavita Patel resigned as Director at Arcellx, Inc..

Action
resigned
Role
Director
Exact text from the filing
Rami Elghandour, David Lubner, Kavita Patel, Olivia Ware, Ali Behbahani, Jill Carroll, Andrew Galligan, and Kristin Myers, being all of the directors of the Company immediately prior to the Effective Time, resigned and ceased to be directors of the Company as of the Effective Time.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.85

Andrew D. Dickinson was appointed as Chief Executive Officer at Arcellx, Inc..

Action
appointed
Role
Chief Executive Officer
Exact text from the filing
the directors and officers of Purchaser as of immediately prior to the Effective Time, which consisted of Andrew D. Dickinson, Keeley Cain Wettan, and Thomas Kennedy, became the directors and officers of the Company.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.85

Keeley Cain Wettan was appointed as Chief Financial Officer at Arcellx, Inc..

Action
appointed
Role
Chief Financial Officer
Exact text from the filing
the directors and officers of Purchaser as of immediately prior to the Effective Time, which consisted of Andrew D. Dickinson, Keeley Cain Wettan, and Thomas Kennedy, became the directors and officers of the Company.
View on SEC.gov
Executive change SEC 8-K Item 5.02 confidence 0.95

Andrew Galligan resigned as Director at Arcellx, Inc..

Action
resigned
Role
Director
Exact text from the filing
Rami Elghandour, David Lubner, Kavita Patel, Olivia Ware, Ali Behbahani, Jill Carroll, Andrew Galligan, and Kristin Myers, being all of the directors of the Company immediately prior to the Effective Time, resigned and ceased to be directors of the Company as of the Effective Time.
View on SEC.gov

Arcellx, Inc. filing history →

Source: SEC EDGAR
accession 0001104659-26-050318
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