Company · Ownership research

Adaptive Biotechnologies Corp ADPT

CIK 0001478320 · CUSIP 00650F109

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 00650F109 (ADPT), not CUSIP 00650F909 (ADPT), CUSIP 00650F959 (ADPT), and does not merge CUSIPs.

This page lists the top 20 of 226 rows by value; the complete set is available through the API.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	VIKING GLOBAL INVESTORS LP CIK 1103804 · View history	$222.85M 29,993,708 shares	0.71%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2025	▾
02	Rubric Capital Management LP CIK 1687509 · View history	$97.47M 13,117,851 shares	1.75%	-1.48M(-10.20%)Reduced	SEC filing ↗ May 14, 2025	▾
03	BlackRock, Inc. CIK 2012383 · View history	$90.87M 12,229,793 shares	0.00%	+108.95K(+0.90%)Added	SEC filing ↗ May 2, 2025	▾
04	VANGUARD GROUP INC CIK 102909 · View history	$82.80M 11,143,428 shares	0.00%	+428.54K(+4.00%)Added	SEC filing ↗ May 9, 2025	▾
05	ARK Investment Management LLC CIK 1697748 · View history	$57.45M 7,732,570 shares	0.58%	-1.69M(-17.90%)Reduced	SEC filing ↗ May 7, 2025	▾
06	AMERIPRISE FINANCIAL INC CIK 820027 · View history	$49.35M 6,642,476 shares	0.01%	+5.91M(+801.60%)Added	SEC filing ↗ May 14, 2025	▾
07	Sumitomo Mitsui Trust Group, Inc. CIK 1475365 · View history	$45.22M 6,085,690 shares	0.03%	-747.45K(-10.90%)Reduced	SEC filing ↗ Apr 25, 2025	▾
08	Amova Asset Management Americas, Inc. CIK 1480751 · View history	$45.16M 6,085,690 shares	0.58%	-747.45K(-10.90%)Reduced	SEC filing ↗ May 7, 2025	▾
09	BRAIDWELL LP CIK 1920938 · View history	$35.69M 4,803,794 shares	1.25%	+4.80MNew	SEC filing ↗ May 15, 2025	▾
10	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$22.26M 2,995,301 shares	0.02%	-3.30M(-52.40%)Reduced	SEC filing ↗ May 15, 2025	▾
11	Aristotle Atlantic Partners, LLC CIK 1697267 · View history	$21.85M 2,941,212 shares	0.74%	+54.51K(+1.90%)Added	SEC filing ↗ May 15, 2025	▾
12	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$20.67M 2,780,824 shares	0.00%	+96.32K(+3.60%)Added	SEC filing ↗ May 13, 2025	▾
13	STATE STREET CORP CIK 93751 · View history	$19.98M 2,689,543 shares	0.00%	-40.36K(-1.50%)Reduced	SEC filing ↗ May 15, 2025	▾
14	MASSACHUSETTS FINANCIAL SERVICES CO /MA/ CIK 912938 · View history	$17.14M 2,306,312 shares	0.01%	-1.06M(-31.60%)Reduced	SEC filing ↗ May 2, 2025	▾
15	Driehaus Capital Management LLC CIK 938206 · View history	$15.99M 2,152,335 shares	0.15%	+1.31M(+154.40%)Added	SEC filing ↗ May 15, 2025	▾
16	Blue Water Life Science Advisors, LP CIK 1789778 · View history	$15.94M 2,145,145 shares	15.79%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2025	▾
17	Iron Triangle Partners LP CIK 1779763 · View history	$15.86M 2,134,061 shares	2.50%	+2.13MNew	SEC filing ↗ May 15, 2025	▾
18	VOYA INVESTMENT MANAGEMENT LLC CIK 1068837 · Amended · View history	$14.90M 2,005,940 shares	0.02%	-422.77K(-17.40%)Reduced	SEC filing ↗ Jun 18, 2025	▾
19	GOLDMAN SACHS GROUP INC CIK 886982 · Amended · View history	$14.90M 2,005,444 shares	0.00%	-232.68K(-10.40%)Reduced	SEC filing ↗ May 16, 2025	▾
20	VICTORY CAPITAL MANAGEMENT INC CIK 1040188 · View history	$13.11M 1,764,227 shares	0.01%	+1.75M(+9,892.20%)Added	SEC filing ↗ May 2, 2025	▾

Showing 20 / 226 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

226

Cancelled or null records excluded

Disclosed shares

152,912,533

Not deduplicated across managers

Disclosed value

$1.14B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Adaptive Biotechnologies Corp · Q1 2025

Explore all 226 reporting institutions.

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.