ROBINS HARLAN S

PrivateCIK: 1780851

Location

SEATTLE, WA

Senior insider sale

Chief Scientific Officer at ADAPTIVE BIOTECHNOLOGIES CORP — senior position signals high conviction

$10.18M

502.40K shares

What this filing means

ROBINS HARLAN S plans to sell 502.40K shares of ADAPTIVE BIOTECHNOLOGIES CORP valued at approximately $10.18M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

ROBINS HARLAN S

Filed: 7/2/2026ACC: 0001958244-26-000428

InsiderROBINS HARLAN SCIK 1780851

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IssuerADAPTIVE BIOTECHNOLOGIES CORPCIK 1478320

Officer· Chief Scientific Officer

Since Jun 2019

502.40K

Shares to sell

$10.18M

Approx. market value

386.24K

Acquired (3 months)

1

Planned

3 completed

Securities Acquired — Last 3 Months14

Sort

Acquired as compensation -- Performance Awards

Compensation

3/10/2026

13.46K

Acquired as compensation -- Performance Awards

Compensation

3/7/2026

3.56K

Acquired as compensation -- Performance Awards

Compensation

3/7/2026

18.27K

Acquired as compensation -- Performance Awards

Compensation

3/7/2026

7.21K

Acquired as compensation -- Performance Awards

Compensation

3/7/2026

6.21K

Acquired as compensation -- Performance Awards

Compensation

3/7/2026

30.43K

Acquired as compensation -- Performance Awards

Compensation

3/7/2026

22.54K

Acquired as compensation -- Restricted Stock Units

Compensation

3/4/2024

48.05K

Acquired as compensation -- Restricted Stock Units

Compensation

3/6/2023

55.77K

Acquired as compensation -- Restricted Stock Units

Compensation

3/6/2023

46.02K

Acquired as compensation -- Restricted Stock Units

Compensation

3/4/2022

61.78K

Acquired as compensation -- Restricted Stock Units

Compensation

3/4/2022

44.23K

Acquired as compensation -- Restricted Stock Units

Compensation

3/4/2021

17.17K

Acquired as compensation -- Restricted Stock Units

Compensation

3/4/2021

11.55K

Total acquired386.24K

Acquisition Date	Type	Amount Acquired	Gift
3/10/2026	Acquired as compensation -- Performance Awards Compensation	13.46K	—
3/7/2026	Acquired as compensation -- Performance Awards Compensation	3.56K	—
3/7/2026	Acquired as compensation -- Performance Awards Compensation	18.27K	—
3/7/2026	Acquired as compensation -- Performance Awards Compensation	7.21K	—
3/7/2026	Acquired as compensation -- Performance Awards Compensation	6.21K	—
3/7/2026	Acquired as compensation -- Performance Awards Compensation	30.43K	—
3/7/2026	Acquired as compensation -- Performance Awards Compensation	22.54K	—
3/4/2024	Acquired as compensation -- Restricted Stock Units Compensation	48.05K	—
3/6/2023	Acquired as compensation -- Restricted Stock Units Compensation	55.77K	—
3/6/2023	Acquired as compensation -- Restricted Stock Units Compensation	46.02K	—
3/4/2022	Acquired as compensation -- Restricted Stock Units Compensation	61.78K	—
3/4/2022	Acquired as compensation -- Restricted Stock Units Compensation	44.23K	—
3/4/2021	Acquired as compensation -- Restricted Stock Units Compensation	17.17K	—
3/4/2021	Acquired as compensation -- Restricted Stock Units Compensation	11.55K	—
Total		386.24K

Planned & Completed Dispositions4

Sort

Completed

—Completed

Units to sell

6.16K

Market value

$110.9K

6/16/2026

—Completed

Units to sell

100K

Market value

$1.74M

6/15/2026

—Completed

Units to sell

10K

Market value

$148.3K

4/8/2026

Planned — Approximate Date

NASDPlanned

Units to sell

386.24K

Market value

$8.18M

7/2/2026

Total

Units

502.40K

Value

$10.18M

Date	Units to Sell	Approx. Market Value	Exchange	Status
Completed
6/16/2026	6.16K	$110.9K	—	Completed
6/15/2026	100K	$1.74M	—	Completed
4/8/2026	10K	$148.3K	—	Completed
Planned — Approximate Date
7/2/2026	386.24K	$8.18M	NASD	Planned
Total	502.40K	$10.18M