Transaction · 0001780649-26-000002

ROBINS CHAD M

ROBINS CHAD M, CHAIR, reported an open-market or private sale at Adaptive Biotechnologies Corp involving 124998.000000 shares for an estimated $2304963.12. Reported holdings after the transaction were 2459245.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SCHAIR
ADPTAdaptive Biotechnologies Corp
Filing timeFeb 05
Trade dateFeb 02, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$16.47
Pre-filing
1mo ago -3.4%1w ago +16.1%1d ago +12.3%
Returns since
7d -5.6%30d -9.8%90d -12.4%180d +49.1%1y +52.9%

ADPT price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
ADPT since 2026-02-05Filed 212 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001780649-26-000002
Common Stock
Transaction date
Feb 02, 2026
Filed Feb 05, 2026, 12:37 AM · 3d delay
Shares
124k sh
$1.84k per share
Estimated value
-$230M
Computed from shares × price
Holdings after
2.45M sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Direct Ownership Large Sale 10b5-1 Detected
-4score
Filing-only score

-4

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

CEO and Chairman

Officer YesDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 11, 2025.

  2. F2

    The price reported for this transaction is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.16 to $18.88, inclusive. The reporting person undertakes…

Original filing · 0001780649-26-000002
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Same reporting owner
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