Company · Ownership research

THERMO FISHER SCIENTIFIC INC. TMO

CIK 0000097745 · CUSIP 883556102

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 883556102 (TMO), not CUSIP 883556902 (TMO), CUSIP 883556952 (TMO), CUSIP 883529107 (TMO), and does not merge CUSIPs.

This page lists the top 20 of 1,617 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$5.69B 8,462,804 shares	0.30%	+80.40K(+1.00%)Added	SEC filing ↗ Nov 6, 2026	▾
02	Bank of New York Mellon Corp CIK 1390777 · View history	$2.77B 4,110,234 shares	0.46%	+171.82K(+4.40%)Added	SEC filing ↗ Nov 5, 2026	▾
03	Fisher Asset Management, LLC CIK 850529 · View history	$2.02B 2,990,343 shares	0.58%	+74.63K(+2.60%)Added	SEC filing ↗ Nov 6, 2026	▾
04	Mitsubishi UFJ Asset Management Co., Ltd. CIK 1466546 · View history	$1.37B 2,036,191 shares	0.71%	+23.26K(+1.20%)Added	SEC filing ↗ Nov 5, 2026	▾
05	Amundi CIK 1330387 · View history	$1.37B 2,023,069 shares	0.28%	+209.98K(+11.60%)Added	SEC filing ↗ Nov 6, 2026	▾
06	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$1.18B 1,750,114 shares	0.21%	+37.27K(+2.20%)Added	SEC filing ↗ Nov 4, 2026	▾
07	PARNASSUS INVESTMENTS, LLC CIK 948669 · View history	$987.79M 1,463,282 shares	2.92%	-176.31K(-10.80%)Reduced	SEC filing ↗ Oct 22, 2026	▾
08	Temasek Holdings (Private) Ltd CIK 1021944 · View history	$814.25M 1,206,213 shares	2.24%	+42.48K(+3.70%)Added	SEC filing ↗ Oct 28, 2026	▾
09	DEUTSCHE BANK AG\ CIK 948046 · View history	$806.28M 1,194,394 shares	0.22%	-20.41K(-1.70%)Reduced	SEC filing ↗ Nov 6, 2026	▾
10	BARCLAYS PLC CIK 312069 · View history	$739.24M 1,095,088 shares	0.25%	-259.02K(-19.10%)Reduced	SEC filing ↗ Nov 6, 2026	▾
11	Sumitomo Mitsui Trust Group, Inc. CIK 1475365 · View history	$703.66M 1,042,381 shares	0.40%	-37.02K(-3.40%)Reduced	SEC filing ↗ Oct 29, 2026	▾
12	Swedbank AB CIK 946431 · View history	$658.69M 975,770 shares	0.56%	-322.99K(-24.90%)Reduced	SEC filing ↗ Oct 27, 2026	▾
13	FLOSSBACH VON STORCH SE CIK 1575677 · View history	$614.51M 910,320 shares	3.12%	-995.65K(-52.20%)Reduced	SEC filing ↗ Oct 28, 2026	▾
14	Pictet Asset Management Holding SA CIK 1993888 · View history	$599.27M 887,598 shares	0.57%	-186.07K(-17.30%)Reduced	SEC filing ↗ Nov 3, 2026	▾
15	Robeco Institutional Asset Management B.V. CIK 1418773 · View history	$483.94M 716,890 shares	0.58%	+139.26K(+24.10%)Added	SEC filing ↗ Oct 20, 2026	▾
16	KING LUTHER CAPITAL MANAGEMENT CORP CIK 310051 · View history	$439.58M 651,184 shares	1.81%	-26.13K(-3.90%)Reduced	SEC filing ↗ Nov 5, 2026	▾
17	Veritas Asset Management LLP CIK 1541448 · View history	$439.50M 651,069 shares	8.19%	-231.80K(-26.30%)Reduced	SEC filing ↗ Nov 5, 2026	▾
18	DekaBank Deutsche Girozentrale CIK 1456228 · View history	$438.96M 645,803 shares	0.50%	-126.84K(-16.40%)Reduced	SEC filing ↗ Oct 27, 2026	▾
19	CITIGROUP INC CIK 831001 · View history	$415.04M 614,823 shares	0.20%	-36.15K(-5.60%)Reduced	SEC filing ↗ Nov 4, 2026	▾
20	PRINCIPAL FINANCIAL GROUP INC CIK 1126328 · View history	$410.08M 607,485 shares	0.21%	+53.63K(+9.70%)Added	SEC filing ↗ Nov 2, 2026	▾

Showing 20 / 1,617 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

1,617

Cancelled or null records excluded

Disclosed shares

61,892,423

Not deduplicated across managers

Disclosed value

$41.32B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

THERMO FISHER SCIENTIFIC INC. · Q3 2026

Explore all 1,617 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.