secwatch / observer
ORKA Oruka Therapeutics, Inc.
CIK 0000907654 50 ready 8-Ks latest August 10, 2026, 7:00 AM ET RSS · JSON
Activity: NORMAL 2 filings / 30d vs 1 baseline
Ready 8-Ks 50
Latest filing August 24, 2026, 4:06 PM ET
Top materiality 0.90
Event mix other_material ×18 · earnings ×11 · leadership ×10
Sentiment 7 pos · 2 neg · 41 neu
Latest earnings reported 2024-Q2
Executive change recent →
SHENANIGAN SCORE 2 / 7 see the board

Recent 8-K filings for ORKA

Executive changes

Appointed (interim)

Thomas A. Keuer

President and principal executive officer
ORKA · Oruka Therapeutics, Inc.
Effective
2024-04-03
Filed
April 4, 2024, 7:59 PM ET
the Board appointed Thomas A. Keuer, the Company’s Chief Operating Officer, to serve as ARCA’s President and principal executive officer.
Departed

Michael Bristow

President, Chief Executive Officer and Director
ORKA · Oruka Therapeutics, Inc.
Effective
2024-04-03
Successor
Thomas A. Keuer
Filed
April 4, 2024, 7:59 PM ET
Dr. Michael Bristow, President, Chief Executive Officer and a member of the board of directors (the “Board”) of ARCA have mutually agreed to conclude Dr. Bristow’s employment and service as a director, effective April 3, 2024.
Departed

Raymond L. Woosley

director
ORKA · Oruka Therapeutics, Inc.
Effective
2024-02-02
Filed
February 6, 2024, 6:59 PM ET
On February 2, 2024, Raymond L. Woosley, M.D., Ph.D. and Dan Mitchell each resigned from the board of directors (the “ Board ”) of ARCA biopharma, Inc., a Delaware corporation (“ ARCA ”), effective immediately.
Departed

Dan Mitchell

director
ORKA · Oruka Therapeutics, Inc.
Effective
2024-02-02
Filed
February 6, 2024, 6:59 PM ET
On February 2, 2024, Raymond L. Woosley, M.D., Ph.D. and Dan Mitchell each resigned from the board of directors (the “ Board ”) of ARCA biopharma, Inc., a Delaware corporation (“ ARCA ”), effective immediately.
Departed

Christopher D. Ozeroff

Secretary, Senior Vice President and General Counsel
ORKA · Oruka Therapeutics, Inc.
Effective
2023-03-31
Filed
February 13, 2023, 6:59 PM ET
ARCA biopharma, Inc. (“ARCA” or the "Company") and Christopher D. Ozeroff, the Secretary, Senior Vice President and General Counsel of ARCA have mutually agreed to conclude Mr. Ozeroff’s employment effective March 31, 2023.
Appointed

James Flynn

director
ORKA · Oruka Therapeutics, Inc.
Effective
2022-12-15
Filed
December 19, 2022, 6:59 PM ET
On December 15, 2022, the Board of Directors (the “Board”) of ARCA biopharma, Inc. (the “Company”) elected James Flynn, as a director of the Company.
Appointed

Jacob Ma-Weaver

director
ORKA · Oruka Therapeutics, Inc.
Effective
2022-06-15
Filed
June 21, 2022, 7:59 PM ET
On June 15, 2022, the Board of the Company elected Jacob Ma‐Weaver as a director of the Company.

Earnings & guidance

2024-Q2 EPS reported -$0.32 filing →

Materiality & sentiment trend

Max materiality 0.90 · Median 0.60 · Most common event other_material

7 positive 2 negative 41 neutral

source · ORKA on sec.gov