First Pacific Advisors, LP

Position in TMO — Thermo Fisher Scientific Inc.

CIK 1377581 EL SEGUNDO, CA

Position in TMO

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$109,068,540

-$17,583,005 QoQ

Shares Held

221,896

+1.5% QoQ

Ownership

0.060%

of shares outstanding

% of Portfolio

1.71%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

18 quarters on record

Voting authority Sole 0.ToString("F0")% Shared 100.ToString("F0")% None 0.ToString("F0")%

Healthcare · as of Mar 31, 2026

First Pacific Advisors, LP holds $298,394,060 across 3 Diagnostics & Research names. TMO ranks #2 (36.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ICLR	Icon PLC	991,075	$109,672,359
2	TMO	Thermo Fisher Scientific Inc. This page	221,896	$109,068,540
3	WAT	Waters Corp /De/	267,472	$79,653,161

18 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$109,068,540	221,896	+1.5%	Shares	Sole	2026-05-14
2025-12-31	$126,651,545	218,572	+1.7%	Shares	Sole	2026-02-17
2025-09-30	$104,253,108	214,946	+146.0%	Shares	Sole	2025-11-13
2025-06-30	$35,425,040	87,370	+13341.5%	Shares	Sole	2025-08-01
2023-06-30	$339,137	650	0.0%	Shares	Sole	2023-08-11
2023-03-31	$374,640	650	0.0%	Shares	Sole	2023-05-09
2022-12-31	$357,948	650	0.0%	Shares	Sole	2023-02-07
2022-09-30	$329,673	650	0.0%	Shares	Sole	2022-11-04
2022-06-30	$353,132	650	-63.7%	Shares	Sole	2022-08-08
2022-03-31	$1,057,263	1,790	-9.1%	Shares	Sole	2022-05-11
2021-12-31	$1,313,795	1,969	-13.6%	Shares	Sole	2022-02-08
2021-09-30	$1,302,061	2,279	0.0%	Shares	Sole	2021-11-03
2021-06-30	$1,149,687	2,279	0.0%	Shares	Sole	2021-08-10
2021-03-31	$1,040,090	2,279	0.0%	Shares	Sole	2021-05-11
2020-12-31	$1,061,512	2,279	-3.0%	Shares	Sole	2021-02-09
2020-09-30	$1,037,572	2,350	0.0%	Shares	Sole	2020-11-13
2020-06-30	$851,499	2,350	0.0%	Shares	Sole	2020-08-11
2020-03-31	$666,460	2,350	—	Shares	Sole	2020-05-08
No filing history on record for this holder in this stock.