Adaptive Biotechnologies Corp - Common Stock, par value $0.0001 per share (ADPT)

Q: What does CUSIP 00650F109 represent in this 13F holders report?

CUSIP 00650F109 is the security identifier for ADPT - Adaptive Biotechnologies Corp - Common Stock, par value $0.0001 per share used to aggregate holder disclosures.

Q: How many institutions held ADPT - Adaptive Biotechnologies Corp - Common Stock, par value $0.0001 per share in Q1 2026?

294 institutional investors reported ADPT - Adaptive Biotechnologies Corp - Common Stock, par value $0.0001 per share for Q1 2026. Use the holders table for investor-level position and value details.

CUSIP: 00650F109

Q1 2026 13F Holders as of 31 Mar 2026

Security type / class: Equity / Common Stock, par value $0.0001 per share
Total 13F shares: 151,849,504
Total 13F value: $2,107,726,135
Share change: +1,238,479
Put/Call ratio: 15%
SEC-reported price per share: $13.88
Number of holders: 294
Value change: +$6,707,442
Number of buys: 146
Number of sells: 132
Shares outstanding: 159,541,000

Security key

00650F109

Report period

Q1 2026

Institutions

294

Top holders

ADPT full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2026 Adaptive Biotechnologies Corp SEC filings Adaptive Biotechnologies Corp company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 00650F109

Newer quarter: Q2 2026

Recent filing periods:

Q2 2026

Ownership snapshot

Top reported holders of ADPT - Adaptive Biotechnologies Corp - Common Stock, par value $0.0001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

VIKING GLOBAL INVESTORS LP

Disclosed value leader

VIKING GLOBAL INVESTORS LP

Comparable rows

15/15

Latest evidence

04 Mar 2026

13F 13D/G 3/4/5 Lead comparable stake: 19% 13D/G row: VIKING GLOBAL INVESTORS LP Showing 1-6 of 15 holder rows.

Quick read

VIKING GLOBAL INVESTORS LP leads the comparable SEC ownership view at 19%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens VIKING GLOBAL INVESTORS LP's linked filing trail.

Comparable ownership Top 5

VIKING GLOBAL INVESTORS LP 19%

BlackRock, Inc. 7.9%

Amova Asset Management Americas, ... 4.6%

Sumitomo Mitsui Trust Group, Inc. 4.6%

INTEGRATED CORE STRATEGIES (US) LLC 4.3%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
VIKING GLOBAL INVESTORS LP	13F 13D/G Company 13F 13D/G	19% from 13D/G	$487,097,818 29,993,708 shares	—	31 Dec 2025
BlackRock, Inc.	13F 13D/G Company 13F 13D/G	7.9% from 13D/G	$216,536,989 13,333,559 shares	—	31 Dec 2025
Amova Asset Management Americas, Inc.	13D/G 13F Nikko Asset Management Americas, Inc. · Company 13D/G 13F	4.6%	$53,981,782 6,833,137 shares	$0	31 Dec 2024
Sumitomo Mitsui Trust Group, Inc.	13D/G 13F Company 13D/G 13F	4.6%	$53,981,782 6,833,137 shares	$0	31 Dec 2024
INTEGRATED CORE STRATEGIES (US) LLC	13D/G Millennium Management LLC 13D/G	4.3%	$49,711,809 6,292,634 shares	$0	31 Dec 2024
Rubric Capital Management LP	13D/G 13D/G	4.1%	$72,889,139 6,256,847 shares	$0	30 Jun 2025

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

294

151,849,504

Rows available

294

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2026 vs Q1 2026 Across Filers

Q1 2026 holders

294

Q1 2026 holders

294

Holder diff

Investor	Q1 2026 Shares	Q1 2026 Shares	Share Diff	Share Chg %	Q1 2026 value	Q1 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend