Insider trading

Period: 12 months Stock: ADPT Plan: Not on a plan × + Add filter Clear all
Views & alerts

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When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

15 decisions over 12 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

15 decisions over 12 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

15 decisions over 12 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

15 decisions over 12 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
15 decisions over 12 months Remove this filter
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
15 decisions over 12 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

15 decisions over 12 months
Stock
Insider
Type ?
Why it stands out
26 Aug 2026
Sold at will
$249.99K 9,615 at 26.00
10.9%
Not planned
18 Aug 2026
ROBINS CHAD M CEO and Chairman
Sold at will 2×
$6.82M 278,676 at 24.48
11.3%
Not planned
18 Aug 2026
HERSHBERG ROBERT Director
Sold at will 2×
$748.21K 30,664 at 24.40
39.6%
Not planned
17 Aug 2026
ROBINS CHAD M CEO and Chairman
Sold at will 2×
$8.06M 321,324 at 25.08
12.8%
Not planned
17 Aug 2026
NEUPERT PETER M Director
Sold at will 3×
$3.14M 124,690 at 25.15
48.8%
Not planned
18 May 2026
PISKEL KYLE Chief Financial Officer
Sold at will
$40.62K 3,115 at 13.04
1.2%
Not planned
11 Mar 2026
ROBINS HARLAN S Chief Scientific Officer
Sold at will 2×
$6.19M 470,266 at 13.17
23.6%
Not planned
11 Mar 2026
ROBINS CHAD M CEO and Chairman
Sold at will 2×
$6.19M 470,167 at 13.17
17.0%
Not planned
11 Mar 2026
BENZENO SHARON Chief Commercial Ofc Imm Med
Sold at will
$831.07K 63,103 at 13.17
18.8%
Not planned
11 Mar 2026
BOBULSKY SUSAN Chief Commercial Officer, MRD
Sold at will
$544.42K 41,338 at 13.17
8.8%
Not planned
11 Mar 2026
PISKEL KYLE Chief Financial Officer
Sold at will
$245.91K 18,672 at 13.17
6.7%
Not planned
11 Mar 2026
Sold at will
$214.13K 15,394 at 13.91
49.6%
Not planned
5 Mar 2026
LO FRANCIS Chief People Officer
Sold at will
$574.54K 38,074 at 15.09
10.6%
Not planned
10 Dec 2025
HERSHBERG ROBERT Director
Sold at will
$367.49K 22,968 at 16.00
33.0%
Not planned
17 Nov 2025
PISKEL KYLE Chief Financial Officer
Sold at will
$3.34K 238 at 14.05
0.1%
Not planned
Showing 1–15 of 15.