Transaction · 0001237566-26-000003

NEUPERT PETER M

NEUPERT PETER M, DIR, reported an open-market or private sale at Adaptive Biotechnologies Corp involving 40000.000000 shares for an estimated $1004000.00. Reported holdings after the transaction were 200315.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code SDIR
ADPTAdaptive Biotechnologies Corp
Filing timeAug 20
Trade dateAug 17, 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
$25.44
Pre-filing
1mo ago -9.9%1w ago +0.0%1d ago -2.8%
Returns since
7d +3.9%30d -4.3%90d -4.3%180d -4.3%1y -4.3%

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 2026-08-20Filed 15 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
0001237566-26-000003
Common Stock
Transaction date
Aug 17, 2026
Filed Aug 20, 2026, 12:07 AM · 3d delay
Shares
40.0k sh
$2.50k per share
Estimated value
-$100M
Computed from shares × price
Holdings after
200k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Direct Ownership Large Sale Repeat Seller
+6score
Filing-only score

+6

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

Positive filing signal

This filing has a modest positive filing-only score. Treat it as a useful flag for review, not as a buy signal.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

No officer title

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

    The price reported for this transaction is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.21 to $25.27, inclusive. The reporting person undertakes…

  2. F2

    The price reported for this transaction is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.06 to $25.17, inclusive. The reporting person undertakes…

  3. F3

    The price reported for this transaction is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.14 to $25.22, inclusive. The reporting person undertakes…

  4. F4

    The option was fully vested and exercisable and would have expired on October 18, 2026.

Original filing · 0001237566-26-000003
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