BLAIR WILLIAM & CO/IL

Position in GH — Guardant Health, Inc.

CIK 902367 CHICAGO, IL

Position in GH

as of Mar 31, 2026 · filed May 8, 2026 Compact

Position Value

$9,573,596

+$9,205,333 QoQ

Shares Held

103,644

+1035.3% QoQ

Ownership

0.078%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

11 quarters on record

Voting authority Sole 89.56234803751303.ToString("F0")% Shared 0.ToString("F0")% None 10.437651962486974.ToString("F0")%

Healthcare · as of Mar 31, 2026

BLAIR WILLIAM & CO/IL holds $949,814,483 across 21 Diagnostics & Research names. GH ranks #6 (1.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	IDXX	Idexx Laboratories Inc /De	946,336	$531,736,735
2	DHR	Danaher Corp /De/	1,296,804	$245,874,038
3	TMO	Thermo Fisher Scientific Inc.	172,953	$85,011,588
4	MTD	Mettler Toledo International Inc/	25,604	$32,291,764
5	DGX	Quest Diagnostics Inc	91,972	$18,024,672
6	GH	Guardant Health, Inc. This page	103,644	$9,573,596
7	VCYT	Veracyte, Inc.	194,887	$6,277,310
8	MEDP	Medpace Holdings, Inc.	7,518	$3,610,068

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$9,573,596	103,644	+1035.3%	Shares	Sole	2026-05-08
2022-06-30	$368,263	9,129	+9.1%	Shares	Sole	2022-08-10
2022-03-31	$554,031	8,364	-30.7%	Shares	Sole	2022-05-13
2021-12-31	$1,207,241	12,070	-0.1%	Shares	Sole	2022-02-14
2021-09-30	$1,510,995	12,087	-31.4%	Shares	Sole	2021-11-12
2021-06-30	$2,187,731	17,616	-1.1%	Shares	Sole	2021-08-12
2021-03-31	$2,718,543	17,809	+19.2%	Shares	Sole	2021-05-13
2020-12-31	$1,925,467	14,940	-41.9%	Shares	Sole	2021-02-09
2020-09-30	$2,874,199	25,713	+33.1%	Shares	Sole	2020-11-06
2020-06-30	$1,567,025	19,315	-1.1%	Shares	Sole	2020-08-12
2020-03-31	$1,359,009	19,526	—	Shares	Sole	2020-05-11
No filing history on record for this holder in this stock.