ADPT

Adaptive Biotechnologies Corp

Biological Products, (No Diagnostic Substances)NasdaqAccelerated filer

Total Trades

101

Buys

0

Sells

67

Largest Trade

N/A

Insiders

14

Institutional Funds

222

Inst. Value

$1M+

Activist Filings

29

Insider Trades

InsiderTitleTypeValueSharesPriceDate
ADAMS R MARKCOOSELL$15K–$50K1K$23.32Jan 11, 2022
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Activist & 5%+ Owners

SC 13D/13G filings — investors holding 5%+ of outstanding shares

BlackRock, Inc.

SC 13G/A · Jan 21, 2026

7.9%

12.0M shares

Rubric Capital Management LP

SC 13G/A · Jul 9, 2025

4.1%

6.3M shares

ARK Investment Management LLC

SC 13G/A · Jun 6, 2025

2.9%

4.4M shares

ARK Investment Management LLC

SC 13G · May 14, 2025

5.2%

7.7M shares

ARK Investment Management LLC

SC 13G/A · May 7, 2025

4.0%

6.1M shares

BlackRock, Inc.

SC 13G/A · Apr 17, 2025

6.7%

9.9M shares

ARK Investment Management LLC

SC 13G/A · Feb 14, 2025

6.4%

9.4M shares

4.6%

6.8M shares

Sumitomo Mitsui Trust Group, Inc.

SC 13G/A · Feb 4, 2025

4.6%

6.8M shares

Integrated Core Strategies (US) LLC

SC 13G/A · Jan 27, 2025

3.8%

5.6M shares

Rubric Capital Management LP

SC 13G · Nov 13, 2024

9.8%

14.4M shares

Matrix Capital Management Company LP

SC 13G/A · Nov 13, 2024

0.4%

650K shares

The Vanguard Group

SC 13G/A · Nov 12, 2024

7.2%

10.6M shares

5.2%

7.7M shares

5.2%

7.7M shares

The Vanguard Group

SC 13G · Nov 4, 2024

7.2%

10.6M shares

Integrated Core Strategies (US) LLC

SC 13G/A · Oct 11, 2024

6.3%

9.3M shares

5.2%

7.7M shares

Viking Global Investors LP

SC 13G/A · Feb 14, 2024

20.7%

30.0M shares

The Vanguard Group - 23-1945930

SC 13G/A · Feb 13, 2024

8.8%

12.8M shares

ARK Investment Management LLC

SC 13G/A · Jan 29, 2024

8.8%

12.8M shares

BlackRock, Inc.

SC 13G · Jan 26, 2024

7.9%

11.4M shares

BlackRock, Inc.

SC 13G · Feb 13, 2023

8.7%

12.4M shares

ARK Investment Management LLC

SC 13G · Feb 10, 2023

6.4%

9.2M shares

2.9%

4.1M shares

Viking Global Investors LP

SC 13G/A · Feb 14, 2022

21.3%

30.0M shares

Matrix Capital Management Company LP

SC 13G/A · Feb 14, 2022

8.2%

11.6M shares

10.0%

14.2M shares

9.4%

13.3M shares

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