Security Snapshot

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

CUSIP: 00650F109

13F Institutional Holders and Ownership History from Q3 2016 to Q2 2026

Latest Period

Q2 2026

Institutions Reporting

298

Shares (Excl. Options)

155,722,401

Price

$21.45

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Latest holder snapshot 5 signals
Portfolio coverage rank
0%
Share change
+3,420,656
Value change
+$114,191,089
Number of holders
298
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
159,541,000
SEC-reported price per share
$22.27
Insider filing price
$22.27
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors

Key facts

  • ADPT - Adaptive Biotechnologies Corp - Common Stock, par value $0.0001 per share is tracked under CUSIP 00650F109.
  • 298 institutions reported positions in Q2 2026.
  • 7 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 297 to 298 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from $2,108,918,301 to $3,336,346,028.

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 298 institutions filings for Q2 2026.

Open SEC evidence

Security key

00650F109

Latest holder period

Q2 2026

13F holders

298

13D/G owners

7

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
7
Security
ADPT
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
VIKING GLOBAL INVESTORS LP 19% $416,312,667 29,993,708 VIKING GLOBAL INVESTORS LP 31 Mar 2026
BlackRock, Inc. 7.9% +17% $194,757,356 +$33,318,016 11,992,448 +21% BlackRock, Inc. 31 Dec 2025
Nikko Asset Management Americas, Inc. 4.6% $53,981,782 6,833,137 Nikko Asset Management Americas, Inc. 31 Dec 2024
Sumitomo Mitsui Trust Group, Inc. 4.6% $53,981,782 6,833,137 Sumitomo Mitsui Trust Group, Inc. 31 Dec 2024
INTEGRATED CORE STRATEGIES (US) LLC 4.3% $49,711,809 6,292,634 Millennium Management LLC 31 Dec 2024
Rubric Capital Management LP 4.1% $72,889,139 6,256,847 Rubric Capital Management LP 30 Jun 2025
ARK Investment Management LLC 2.9% -27% $40,863,635 -$15,506,311 4,398,669 -28% ARK Investment Management LLC 31 May 2025

As of 30 Jun 2026, 298 institutional investors reported holding 155,722,401 shares of Adaptive Biotechnologies Corp - Common Stock, par value $0.0001 per share (ADPT). This represents 98% of the company’s total 159,541,000 outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
72%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
VIKING GLOBAL INVESTORS LP 19% 29,993,708 0% 1.8% $643,365,037
BlackRock, Inc. 9.5% 15,139,159 +14% 0% $324,734,962
VANGUARD CAPITAL MANAGEMENT LLC 4% 6,403,587 +5.1% 0% $137,356,941
WELLINGTON MANAGEMENT GROUP LLP 3.7% 5,911,366 +53% 0.02% $126,798,802
VANGUARD PORTFOLIO MANAGEMENT LLC 3.4% 5,476,231 +22% 0.01% $117,465,155
D. E. Shaw & Co., Inc. 2.9% 4,625,859 +135% 0.06% $99,224,675
WESTFIELD CAPITAL MANAGEMENT CO LP 2.7% 4,267,645 -22% 0.3% $91,540,985
GEODE CAPITAL MANAGEMENT, LLC 2.3% 3,641,837 +0.16% 0% $78,131,203
STATE STREET CORP 2.2% 3,458,388 +7.2% 0% $74,181,636
Invesco Ltd. 1.9% 3,094,011 -30% 0.01% $66,366,535
GOLDMAN SACHS GROUP INC 1.9% 2,984,227 -8% 0.01% $64,011,670
PRICE T ROWE ASSOCIATES INC /MD/ 1.7% 2,665,308 +70% 0.01% $57,172,000
Driehaus Capital Management LLC 1.6% 2,527,703 +44% 0.31% $54,219,229
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 1.6% 2,524,620 +27% 0.02% $54,153,099
LORD, ABBETT & CO. LLC 1.6% 2,474,814 -30% 0.15% $53,085,000
Nuveen, LLC 1.5% 2,366,155 +81% 0.01% $50,754,025
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 1.4% 2,182,326 -19% 0.05% $46,810,892
FRED ALGER MANAGEMENT, LLC 1.3% 2,092,284 +1.4% 0.15% $44,879,492
ARK Investment Management LLC 1.3% 2,090,306 -0.13% 0.29% $44,837,058
NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 1.2% 1,889,188 +0.43% 0.06% $40,523,000
Aristotle Atlantic Partners, LLC 1.2% 1,838,513 +7.2% 1.6% $39,436,104
T. Rowe Price Investment Management, Inc. 1.1% 1,779,651 +94% 0.03% $38,174,000
BANK OF AMERICA CORP /DE/ 1.1% 1,730,044 +41% 0% $37,109,444
JANE STREET GROUP, LLC 1% 1,590,513 +133% 0.02% $34,116,504
NORTHERN TRUST CORP 0.94% 1,507,351 +8.3% 0% $32,332,679

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
32
Latest
Q2 2026
Rows shown
1-25 of 32
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q2 155,722,401 $3,336,346,028 +$114,191,089 $21.45 298
2026 Q1 151,935,365 $2,108,918,301 +$7,171,978 $13.88 297
2025 Q4 150,282,518 $2,440,647,272 +$33,879,510 $16.24 282
2025 Q3 145,422,829 $2,175,120,073 -$14,779,461 $14.96 269
2025 Q2 148,178,882 $1,726,248,551 -$46,396,273 $11.65 240
2025 Q1 152,930,142 $1,136,093,247 +$68,698,942 $7.43 222
2024 Q4 143,282,424 $858,588,192 +$3,881,916 $6.00 204
2024 Q3 143,105,692 $732,467,776 -$27,674,373 $5.12 184
2024 Q2 148,655,164 $538,029,201 +$26,127,842 $3.62 173
2024 Q1 142,447,362 $456,622,976 -$10,170,998 $3.21 186
2023 Q4 143,639,172 $703,966,709 +$9,702,761 $4.90 194
2023 Q3 140,492,459 $765,707,625 +$15,429,772 $5.45 187
2023 Q2 137,082,822 $919,786,637 +$21,850,661 $6.71 208
2023 Q1 133,849,942 $1,179,397,231 +$14,000,370 $8.83 223
2022 Q4 132,787,161 $1,014,264,343 +$14,824,828 $7.64 216
2022 Q3 131,007,037 $931,519,109 -$31,344,186 $7.12 205
2022 Q2 134,391,278 $1,083,708,756 +$49,040,887 $8.09 196
2022 Q1 125,563,937 $1,741,620,797 -$42,426,089 $13.88 207
2021 Q4 123,444,543 $3,462,001,567 +$139,816,088 $28.06 208
2021 Q3 117,860,461 $4,003,739,752 -$434,478 $33.99 212
2021 Q2 117,427,979 $4,796,005,013 +$143,202,294 $40.86 226
2021 Q1 113,768,226 $4,579,995,207 -$122,834,155 $40.26 238
2020 Q4 114,044,316 $6,743,577,628 +$149,068,690 $59.13 244
2020 Q3 111,322,127 $5,410,179,736 +$503,359,137 $48.63 206
2020 Q2 101,046,823 $4,886,712,149 +$212,566,003 $48.38 192
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