secwatch / observer
ADPT Adaptive Biotechnologies Corp
CIK 0001478320 42 ready 8-Ks latest July 29, 2026, 4:15 PM ET RSS · JSON
Activity: QUIET 0 filings / 30d vs 1 baseline
Ready 8-Ks 42
Latest filing July 29, 2026, 4:15 PM ET
Top materiality 0.80
Event mix earnings ×23 · leadership ×7 · other_material ×6
Sentiment 14 pos · 6 neg · 22 neu
Latest earnings reported 2026-Q1
Executive change recent →

Recent 8-K filings for ADPT

Executive changes

Role change

Kyle Piskel

Chief Financial Officer
ADPT · Adaptive Biotechnologies Corp
Effective
2024-04-08
Filed
April 9, 2024, 7:59 PM ET
As previously announced, Adaptive Biotechnologies Corporation (the “ Company ”) appointed Kyle Piskel, the Company’s Principal Accounting Officer, to serve as its Chief Financial Officer effective April 8, 2024.
Appointed

Kyle Piskel

Chief Financial Officer
ADPT · Adaptive Biotechnologies Corp
Effective
2024-04-08
Filed
April 2, 2024, 7:59 PM ET
Kyle Piskel, who has been with Company for 8 years and is currently its Principal Accounting Officer will serve as the Chief Financial Officer starting on April 8, 2024.
Departed

Tycho Peterson

Chief Financial Officer
ADPT · Adaptive Biotechnologies Corp
Effective
2024-04-05
Successor
Kyle Piskel
Filed
April 2, 2024, 7:59 PM ET
On April 1, 2024, the Chief Financial Officer of Adaptive Biotechnologies Corporation (the “ Company ”) Tycho Peterson submitted his resignation.
Departed

Kevin Conroy

Director
ADPT · Adaptive Biotechnologies Corp
Effective
2023-09-01
Filed
September 1, 2023, 7:59 PM ET
On September 1, 2023, Adaptive Biotechnologies Corporation (the “ Company ”) Board of Directors (the “ Board ”) member Kevin Conroy submitted his resignation from the Board.
Departed

Nitin Sood

Chief Commercial Officer of the MRD business
ADPT · Adaptive Biotechnologies Corp
Effective
2023-08-15
Filed
August 2, 2023, 7:59 PM ET
On July 28, 2023, the Company's Chief Commercial Officer of the MRD business, Nitin Sood, resigned to pursue a new opportunity.
Departed

Leslie Trigg

Director
ADPT · Adaptive Biotechnologies Corp
Effective
2023-06-09
Filed
June 13, 2023, 7:59 PM ET
On June 9, 2023, Adaptive Biotechnologies Corporation (the " Company ") Board of Directors (the " Board ") member Leslie Trigg submitted her resignation from the Board.
Departed

Mark Adams

Chief Operating Officer
ADPT · Adaptive Biotechnologies Corp
Filed
April 11, 2023, 7:59 PM ET
On April 7, 2023, Mark Adams, Chief Operating Officer of Adaptive Biotechnologies Corporation (the “Company”), was informed that his service is being terminated by May 2023.
Appointed

Tycho Peterson

Chief Financial Officer
ADPT · Adaptive Biotechnologies Corp
Effective
2022-06-04
Filed
March 11, 2022, 6:59 PM ET
On March 9, 2022, the Board of Directors of Adaptive Biotechnologies Corporation (the “ Company ”) appointed Tycho Peterson as Chief Financial Officer of the Company, effective upon his start date, no later than June 4, 2022 (the “ Effective Date ”).
Appointed (interim)

Kyle Piskel

Interim Chief Financial Officer
ADPT · Adaptive Biotechnologies Corp
Effective
2022-02-15
Filed
February 15, 2022, 6:59 PM ET
the Board of Directors of the Company appointed Mr. Kyle Piskel, the Company’s Principal Accounting Officer, as interim Chief Financial Officer effective concurrent with Mr. Cohen’s resignation
Departed

Chad Cohen

Chief Financial Officer
ADPT · Adaptive Biotechnologies Corp
Effective
2022-02-15
Successor
Kyle Piskel
Filed
February 15, 2022, 6:59 PM ET
the Company’s Chief Financial Officer, Mr. Chad Cohen, is resigning effective February 15, 2022
Appointed

Kyle Piskel

Chief Financial Officer
ADPT · Adaptive Biotechnologies Corp
Effective
2022-02-15
Filed
January 10, 2022, 6:59 PM ET
after which Mr. Kyle Piskel, the Company’s Principal Accounting Officer, will act as Chief Financial Officer and principal financial officer.
Departed

Chad Cohen

Chief Financial Officer
ADPT · Adaptive Biotechnologies Corp
Effective
2022-02-15
Successor
Kyle Piskel
Filed
January 10, 2022, 6:59 PM ET
On January 4, 2022, Chad Cohen, Chief Financial Officer of the Company, notified the Company of his decision to resign as Chief Financial Officer of the Company, effective following the filing of the Company’s Annual Report on Form 10-K for the period ended December 31, 2021, on or about February 15, 2022, after which Mr. Kyle Piskel, the Company’s Principal Accounting Officer, will act as Chief Financial Officer and principal financial officer.

Earnings & guidance

2026-Q1 EPS reported -$0.13 filing →

Materiality & sentiment trend

Max materiality 0.80 · Median 0.70 · Most common event earnings

14 positive 6 negative 22 neutral

source · ADPT on sec.gov