DF DENT & CO INC

Position in TMO — Thermo Fisher Scientific Inc.

CIK 934999 BALTIMORE, MD

Back to TMO Full portfolio

Position in TMO

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$22,693,057

-$23,481,271 QoQ

Shares Held

45,263

-51.8% QoQ

Ownership

0.012%

of shares outstanding

% of Portfolio

0.85%

of 13F equity value

Holder Rank

#448

of 2,617 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in TMO Over Time

Shares Held

Position Value (USD)

Position in Diagnostics & Research

Healthcare · as of Jun 30, 2026

DF DENT & CO INC holds $121,544,151 across 5 Diagnostics & Research names. TMO ranks #3 (18.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	DHR	Danaher Corp /De/	368,898	$70,267,691
2	MTD	Mettler Toledo International Inc/	21,280	$27,185,412
3	TMO	Thermo Fisher Scientific Inc. This page	45,263	$22,693,057
4	LH	Labcorp Holdings Inc.	3,308	$926,240
5	ILMN	Illumina, Inc.	2,683	$471,751

All Filings in TMO

Export CSV

26 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$22,693,057	45,263	-51.8%	Shares	Sole	2026-08-14
2026-03-31	$46,174,328	93,940	-47.8%	Shares	Sole	2026-05-15
2025-12-31	$104,291,149	179,983	-10.8%	Shares	Sole	2026-02-17
2025-09-30	$97,832,899	201,709	-3.8%	Shares	Sole	2025-11-14
2025-06-30	$85,044,018	209,747	-1.3%	Shares	Sole	2025-08-14
2025-03-31	$105,739,502	212,499	-2.7%	Shares	Sole	2025-05-15
2024-12-31	$113,568,289	218,304	-2.9%	Shares	Sole	2025-02-12
2024-09-30	$139,041,546	224,779	-1.7%	Shares	Sole	2024-11-15
2024-06-30	$126,466,123	228,691	-2.2%	Shares	Sole	2024-08-14
2024-03-31	$135,864,230	233,761	-0.5%	Shares	Sole	2024-05-15
2023-12-31	$124,680,978	234,897	-1.2%	Shares	Sole	2024-02-14
2023-09-30	$120,401,645	237,868	-0.3%	Shares	Sole	2023-11-14
2023-06-30	$124,457,201	238,538	-3.0%	Shares	Sole	2023-08-14
2023-03-31	$141,780,679	245,989	-2.3%	Shares	Sole	2023-05-15
2022-12-31	$138,701,188	251,868	-4.6%	Shares	Sole	2023-02-15
2022-09-30	$133,848,455	263,902	-3.4%	Shares	Sole	2022-11-14
2022-06-30	$148,434,418	273,219	-9.3%	Shares	Sole	2022-08-15
2022-03-31	$177,909,095	301,209	-0.7%	Shares	Sole	2022-05-16
2021-12-31	$202,339,195	303,248	-5.5%	Shares	Sole	2022-02-14
2021-09-30	$183,388,360	320,985	-1.7%	Shares	Sole	2021-11-15
2021-06-30	$164,660,016	326,402	-1.0%	Shares	Sole	2021-08-16
2021-03-31	$150,484,002	329,734	+0.1%	Shares	Sole	2021-05-17
2020-12-31	$153,388,806	329,316	+0.5%	Shares	Sole	2021-02-16
2020-09-30	$144,714,361	327,764	-0.7%	Shares	Sole	2020-11-16
2020-06-30	$119,645,030	330,201	+0.8%	Shares	Sole	2020-08-14
2020-03-31	$92,856,028	327,419	—	Shares	Sole	2020-05-15
No filing history on record for this holder in this stock.