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 Q3 2021?

212 institutional investors reported ADPT - Adaptive Biotechnologies Corp - Common Stock, par value $0.0001 per share for Q3 2021. Use the holders table for investor-level position and value details.

CUSIP: 00650F109

Q3 2021 13F Holders as of 30 Sep 2021

Security type / class: Equity / Common Stock, par value $0.0001 per share
Total 13F shares: 117,860,461
Total 13F value: $4,003,739,752
Share change: +485,710
Put/Call ratio: 95%
SEC-reported price per share: $33.99
Number of holders: 212
Value change: -$434,478
Number of buys: 99
Number of sells: 90
Shares outstanding: 159,541,000

Security key

00650F109

Report period

Q3 2021

Institutions

212

Top holders

ADPT full security history Ownership snapshot Full 13F holder table Newer quarter: Q4 2021 Previous quarter: Q2 2021 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: Q4 2021 Previous quarter: Q2 2021

Recent filing periods:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

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

30 Jun 2021

13F Lead comparable stake: 19% 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%

Matrix Capital Management Company... 7.4%

PRICE T ROWE ASSOCIATES INC /MD/ 6.9%

VANGUARD GROUP INC 6.4%

BlackRock Finance, Inc. 3.3%

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 Company 13F	19%	$1,225,543,000 29,993,708 shares	—	30 Jun 2021
Matrix Capital Management Company, LP	13F Company 13F	7.4%	$482,152,000 11,800,090 shares	—	30 Jun 2021
PRICE T ROWE ASSOCIATES INC /MD/	13F Company 13F	6.9%	$448,107,000 10,966,891 shares	—	30 Jun 2021
VANGUARD GROUP INC	13F Company 13F	6.4%	$415,859,000 10,177,659 shares	—	30 Jun 2021
BlackRock Finance, Inc.	13F Company 13F	3.3%	$217,369,000 5,319,857 shares	—	30 Jun 2021
ARK Investment Management LLC	13F Company 13F	2.7%	$178,435,000 4,366,977 shares	—	30 Jun 2021

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 Q3 2021

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

Institutions

212

117,860,461

Rows available

212

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 Q3 2021 vs Q2 2021 Across Filers

Q2 2021 holders

226

Q3 2021 holders

212

Holder diff

-14

Investor	Q2 2021 Shares	Q3 2021 Shares	Share Diff	Share Chg %	Q2 2021 value	Q3 2021 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend