secwatch / observer
ADPT Adaptive Biotechnologies Corp
CIK 0001478320 18 ready 8-Ks latest May 5, 2026, 7:59 PM ET RSS · JSON
Activity: QUIET 0 filings / 30d vs 1 baseline
Ready 8-Ks 18
Latest filing May 5, 2026, 7:59 PM ET
Top materiality 0.80
Event mix earnings ×11 · other_material ×4 · leadership ×2
Sentiment 8 pos · 1 neg · 9 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.

Earnings & guidance

2026-Q1 EPS reported -$0.13 filing →

Materiality & sentiment trend

Max materiality 0.80 · Median 0.70 · Most common event earnings

8 positive 1 negative 9 neutral

source · ADPT on sec.gov