WELLINGTON MANAGEMENT GROUP LLP

Position in ADPT — Adaptive Biotechnologies Corp

CIK 902219 Boston, MA

Position in ADPT

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$53,541,015

+$18,376,107 QoQ

Shares Held

3,857,422

+78.1% QoQ

Ownership

2.41%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

7 quarters on record

Voting authority Sole 0.ToString("F0")% Shared 86.1893513336109.ToString("F0")% None 13.810648666389106.ToString("F0")%

Healthcare · as of Mar 31, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $8,226,619,826 across 24 Diagnostics & Research names. ADPT ranks #15 (0.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	DHR	Danaher Corp /De/	14,774,524	$2,801,249,746
2	NTRA	Natera, Inc.	4,768,593	$953,670,911
3	A	Agilent Technologies, Inc.	7,256,433	$827,088,230
4	TMO	Thermo Fisher Scientific Inc.	1,478,251	$726,604,711
5	ICLR	Icon PLC	5,913,037	$654,336,671
6	QGEN	Qiagen N.V.	14,364,303	$575,146,689
7	IDXX	Idexx Laboratories Inc /De	735,475	$413,256,044
8	CRL	Charles River Laboratories International, Inc.	1,629,401	$281,071,670

7 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$53,541,015	3,857,422	+78.1%	Shares	Defined	2026-05-15
2025-12-31	$35,164,908	2,165,327	+332.1%	Shares	Defined	2026-02-17
2025-09-30	$7,496,216	501,084	+789.9%	Shares	Defined	2025-11-14
2020-12-31	$3,329,669	56,311	-69.2%	Shares	Defined	2021-02-12
2020-09-30	$8,890,244	182,814	-63.5%	Shares	Defined	2020-11-16
2020-06-30	$24,220,188	500,624	-84.6%	Shares	Defined	2020-08-14
2020-03-31	$90,097,343	3,243,245	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.