CONGRESS ASSET MANAGEMENT CO

Position in TMO — Thermo Fisher Scientific Inc.

CIK 897378 BOSTON, MA

Position in TMO

as of Jun 30, 2026 · filed Jul 7, 2026 Compact

Position Value

$4,249,026

-$94,198,534 QoQ

Shares Held

8,475

-95.8% QoQ

Ownership

0.002%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

#55

of 261 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 97.6401179941003.ToString("F0")% Shared 0.ToString("F0")% None 2.359882005899705.ToString("F0")%

Healthcare · as of Jun 30, 2026

CONGRESS ASSET MANAGEMENT CO holds $135,344,121 across 3 Diagnostics & Research names. TMO ranks #3 (3.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	IDXX	Idexx Laboratories Inc /De	190,193	$100,125,202
2	MEDP	Medpace Holdings, Inc.	58,479	$30,969,893
3	TMO	Thermo Fisher Scientific Inc. This page	8,475	$4,249,026

26 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$4,249,026	8,475	-95.8%	Shares	Sole	2026-07-07
2026-03-31	$98,447,560	200,288	-4.2%	Shares	Sole	2026-04-14
2025-12-31	$121,092,302	208,978	+39.4%	Shares	Sole	2026-01-09
2025-09-30	$72,697,222	149,885	-7.8%	Shares	Sole	2025-10-10
2025-06-30	$65,886,439	162,498	-3.1%	Shares	Sole	2025-07-16
2025-03-31	$83,471,902	167,749	+23.5%	Shares	Sole	2025-04-11
2024-12-31	$70,675,846	135,855	-23.5%	Shares	Sole	2025-01-30
2024-09-30	$109,914,940	177,692	+743.7%	Shares	Sole	2024-10-28
2024-06-30	$11,646,733	21,061	-0.9%	Shares	Sole	2024-08-02
2024-03-31	$12,350,712	21,250	+5.7%	Shares	Sole	2024-04-11
2023-12-31	$10,666,225	20,095	+20.0%	Shares	Sole	2024-03-04
2023-09-30	$8,479,359	16,752	+6.2%	Shares	Sole	2023-11-01
2023-06-30	$8,232,693	15,779	-7.6%	Shares	Sole	2023-07-27
2023-03-31	$9,840,365	17,073	+6.7%	Shares	Sole	2023-04-21
2022-12-31	$8,811,590	16,001	+160.1%	Shares	Sole	2023-01-18
2022-09-30	$3,120,740	6,153	-12.5%	Shares	Sole	2022-11-08
2022-06-30	$3,822,518	7,036	-13.0%	Shares	Sole	2022-08-02
2022-03-31	$4,775,405	8,085	-95.9%	Shares	Sole	2022-04-20
2021-12-31	$130,973,206	196,291	-17.5%	Shares	Sole	2022-01-28
2021-09-30	$135,903,409	237,872	+7.9%	Shares	Sole	2021-11-08
2021-06-30	$111,227,059	220,483	+1.0%	Shares	Sole	2021-08-05
2021-03-31	$99,627,297	218,299	-0.4%	Shares	Sole	2021-05-05
2020-12-31	$102,091,057	219,183	-2.9%	Shares	Sole	2021-01-26
2020-09-30	$99,672,256	225,748	-1.7%	Shares	Sole	2020-11-03
2020-06-30	$83,201,597	229,623	+0.6%	Shares	Sole	2020-07-23
2020-03-31	$64,742,476	228,288	—	Shares	Sole	2020-04-21
No filing history on record for this holder in this stock.