Industry deep-dive

Diagnostics & Research

Every super-investor and insider move tracked across 29 tickers in this industry.

Tickers

Combined value

$61.08B

Insider net (30d)

−$304K

Congress trades (30d)

Sector consensus moves

Latest portfolios · 2025Q4

Most bought

Tracked managers added or opened

Most sold

Tracked managers trimmed or exited

Top 12 super-investors · 2025Q4

#	Manager	Sector value	Positions	% of book	Top picks
1	T. Rowe Price	$15.16B	29	1.6%	TMO DHR NTRA
2	Wellington Management	$9.51B	22	1.7%	DHR TMO NTRA
3	Norges Bank Norway SWF	$8.83B	20	0.9%	TMO DHR A
4	AQR Capital Management	$3.43B	27	1.8%	MEDP NTRA ILMN
5	Bill Nygren Harris / Oakmark	$2.89B	5	3.7%	IQV CRL DHR
6	Ken Fisher Fisher Asset Mgmt	$2.76B	12	0.9%	TMO DHR MEDP
7	Jeremy Grantham GMO	$1.72B	6	4.4%	TMO DGX WAT
8	Ron Baron Baron Capital / BAMCO	$1.64B	12	4.5%	IDXX MTD CDNA
9	Izzy Englander Millennium Mgmt	$1.64B	28	1.2%	DHR WAT IQV
10	Baillie Gifford & Co	$1.61B	6	1.3%	GH TMO MEDP
11	Ken Griffin Citadel Advisors	$1.58B	28	1.1%	TMO DHR IQV
12	Boykin Curry Eagle Capital	$1.41B	1	4.4%	DHR

#	Ticker	Company	Value
1	TMO	THERMO FISHER SCIENTIFIC INC	$15.07B
2	DHR	DANAHER CORPORATION	$13.94B
3	NTRA	NATERA INC	$6.57B
4	IQV	IQVIA HLDGS INC	$4.78B
5	IDXX	IDEXX LABS INC	$2.86B
6	A	AGILENT TECHNOLOGIES INC	$2.14B
7	MEDP	MEDPACE HLDGS INC	$2.06B
8	GH	GUARDANT HEALTH INC	$1.95B
9	DGX	QUEST DIAGNOSTICS INC	$1.84B
10	MTD	METTLER TOLEDO INTERNATIONAL	$1.60B
11	CRL	CHARLES RIV LABS INTL INC	$1.40B
12	ILMN	ILLUMINA INC	$1.31B
13	WAT	WATERS CORP	$1.07B
14	RVTY	PERKINELMER INC	$1.02B
15	LH	LABCORP HOLDINGS INC	$1.02B
16	RDNT	RADNET INC	$408.0M
17	TWST	TWIST BIOSCIENCE CORP	$361.4M
18	VCYT	VERACYTE INC	$344.1M
19	WGS	GENEDX HOLDINGS CORP	$239.6M
20	CDNA	CAREDX INC	$175.7M
21	BLLN	BILLIONTOONE INC	$172.1M
22	SHC	SOTERA HEALTH CO	$171.2M
23	NEO	NEOGENOMICS INC	$146.1M
24	MYGN	MYRIAD GENETICS INC	$134.0M