TMO

Thermo Fisher Scientific Inc.

Company with tickers: TMO

CIK
97745
CUSIP
883556102
Shares Outstanding
371,621,465
13F Activity (30d)
1882 filings 1820 filers
Price
$448.18
Market Cap
$166.55B
P/E Ratio
29.01
EPS (Diluted)
$15.45
52W High
$643.99
52W Low
$385.46
Holders: 2,564
Total Value: $139,832,192,684
Total Shares: 284,483,540
Showing 1–100 of 2,628 holdings by value · page 1 of 27

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 2,564 13F filers · Δ vs Dec 31, 2025
Top Holder
10.7%
Jun 2023 → Mar 2026 · range 8.9% – 10.7%
+1.8 pts
Top 5
25.7%
Jun 2023 → Mar 2026 · range 23.5% – 32.6%
−6.9 pts
Top 10
36.2%
Jun 2023 → Mar 2026 · range 31.8% – 43.9%
−7.8 pts
HHI
229
Jun 2023 → Mar 2026 · range 192 – 292
Broadly held −63

Quarterly Activity

vs Dec 31, 2025
New
158
Increased
964
Decreased
1,089
Sold Out
361
Unchanged
353
Holder count: -203
Institutional value: -37.0%
Shares held: -25.7%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds
Mega Capital International Investors +2,968,583 3,888,726
Mega Capital Research Global Investors +1,499,720 4,414,621
Mega FMR LLC +983,089 10,776,436
Large VIKING GLOBAL INVESTORS LP +874,838 1,668,025
Large 1832 Asset Management L.P. +725,093 1,969,618

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds
Small J. Stern & Co. LLP −31,454,483 54,849
Mega MORGAN STANLEY −11,553,158 341,119
Mega Capital World Investors −4,357,498 6,646,316
Mid NORTHERN TRUST CORP −3,446,038 3,285
Mega WELLINGTON MANAGEMENT GROUP LLP −1,989,989 1,478,251

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD)
Large D1 Capital Partners L.P. 725,005 $356,361,707
Large JUPITER ASSET MANAGEMENT LTD 234,020 $115,027,850
Large CAPITOLIS LIQUID GLOBAL MARKETS LLC 196,173 $96,424,914
Large SEB Asset Management AB 190,270 $93,523,413
Large RENAISSANCE TECHNOLOGIES LLC 138,964 $68,304,974

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD)
Mega VANGUARD GROUP INC 34,133,702 $19,778,773,621
Mega NORGES BANK 5,302,863 $3,072,743,965
Mega VANGUARD GROUP INC 817,711 $473,822,638
Large CIBC Private Wealth Group LLC 806,898 $467,557,046
Large CIBC Private Wealth Group, LLC 806,898 $467,557,046
100 of 100 shown
Export CSV
Holder Value (USD) % of 13F Shares Action
Mega BlackRock, Inc. $14,955,877,673 10.70% 30,427,192 View
Mega STATE STREET CORP $8,224,116,772 5.88% 16,731,668 View
Mega FMR LLC $5,296,941,583 3.79% 10,776,436 View
Mega GEODE CAPITAL MANAGEMENT, LLC $4,132,730,662 2.96% 8,407,891 View
Mega FRANKLIN RESOURCES INC $3,348,809,122 2.39% 6,813,031 View
Mega JPMORGAN CHASE & CO $3,340,183,256 2.39% 6,795,482 View
Mega Capital World Investors $3,266,863,703 2.34% 6,646,316 View
Mega PRICE T ROWE ASSOCIATES INC /MD/ $3,104,243,460 2.22% 6,315,471 View
Mega BANK OF AMERICA CORP /DE/ Bank $2,719,833,571 1.95% 5,533,403 View
Mega Capital Research Global Investors $2,169,918,660 1.55% 4,414,621 View
Mega ROYAL BANK OF CANADA Bank $1,923,800,734 1.38% 3,913,903 View
Mega Capital International Investors $1,911,425,490 1.37% 3,888,726 View
Mega Bank of New York Mellon Corp Bank $1,851,403,765 1.32% 3,766,614 View
Mega GOLDMAN SACHS GROUP INC $1,551,871,293 1.11% 3,157,226 View
Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $1,481,033,464 1.06% 3,013,109 View
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $1,442,562,888 1.03% 2,934,842 View
Mega DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main Bank $1,432,769,640 1.02% 2,914,918 View
Mega Fisher Asset Management, LLC $1,401,636,625 1.00% 2,851,579 View
Large Grantham, Mayo, Van Otterloo & Co. LLC $1,229,909,315 0.88% 2,502,206 View
Mega UBS Group AG $1,205,945,748 0.86% 2,453,453 View
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $1,204,099,562 0.86% 2,449,697 View
Mega Legal & General Group Plc $1,165,187,101 0.83% 2,370,531 View
Mega Invesco Ltd. $1,098,923,441 0.79% 2,235,720 View
Mega ALLIANCEBERNSTEIN L.P. $1,076,749,550 0.77% 2,190,608 View
Large Pictet Asset Management Holding SA $1,013,211,924 0.72% 2,061,343 View
Large Unisphere Establishment $1,012,551,800 0.72% 2,060,000 View
Mega Amundi $991,052,273 0.71% 2,016,260 View
Mega PRIMECAP MANAGEMENT CO/CA/ $974,473,462 0.70% 1,982,531 View
Large 1832 Asset Management L.P. $968,126,335 0.69% 1,969,618 View
Large FLOSSBACH VON STORCH SE $960,484,027 0.69% 1,954,070 View
Large EdgePoint Investment Group Inc. $943,244,595 0.67% 1,918,997 View
Mega Mitsubishi UFJ Asset Management Co., Ltd. $910,916,175 0.65% 1,853,226 View
Mega BARCLAYS PLC $906,422,113 0.65% 1,844,083 View
Mega SCHRODER INVESTMENT MANAGEMENT GROUP $849,580,108 0.61% 1,728,440 View
Mega DIMENSIONAL FUND ADVISORS LP $830,582,476 0.59% 1,689,790 View
Mega AMERIPRISE FINANCIAL INC $821,051,708 0.59% 1,670,400 View
Large VIKING GLOBAL INVESTORS LP $819,884,328 0.59% 1,668,025 View
Mega Nuveen, LLC $809,544,502 0.58% 1,646,989 View
Mega Clearbridge Investments, LLC $791,705,896 0.57% 1,610,697 View
Large PARNASSUS INVESTMENTS, LLC $739,581,106 0.53% 1,504,651 View
Large Swedbank AB Bank $727,608,908 0.52% 1,480,294 View
Mega WELLINGTON MANAGEMENT GROUP LLP $726,604,711 0.52% 1,478,251 View
Mega WELLS FARGO & COMPANY/MN $709,529,450 0.51% 1,443,512 View
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $699,796,176 0.50% 1,423,710 View
Large LOOMIS SAYLES & CO L P $670,327,969 0.48% 1,363,758 View
Mega DEUTSCHE BANK AG\ Bank $619,497,370 0.44% 1,260,345 View
Large LAZARD ASSET MANAGEMENT LLC $600,677,675 0.43% 1,222,057 View
Large Temasek Holdings (Private) Ltd $587,771,082 0.42% 1,195,799 View
Large Focus Partners Wealth $560,812,136 0.40% 1,140,952 View
Mega Swiss National Bank Bank $541,980,639 0.39% 1,102,640 View
Mega Sumitomo Mitsui Trust Group, Inc. $530,134,274 0.38% 1,078,539 View
Large Rathbones Group PLC $468,874,399 0.34% 953,908 View
Large APG Asset Management N.V. $458,173,791 0.33% 932,138 View
Mega NEUBERGER BERMAN GROUP LLC $435,284,221 0.31% 885,570 View
Large FARALLON CAPITAL MANAGEMENT LLC $433,276,322 0.31% 881,485 View
Mega CITADEL ADVISORS LLC $424,922,277 0.30% 864,489 View
Mid Veritas Asset Management LLP $415,831,922 0.30% 845,995 View
Large Corient Private Wealth LLC $408,986,875 0.29% 832,069 View
Mega National Pension Service Pension $407,798,847 0.29% 829,652 View
Mid London & Capital Asset Management Ltd $390,015,292 0.28% 793,472 View
Mega RAYMOND JAMES FINANCIAL INC $381,092,054 0.27% 775,318 View
Large GENERATION INVESTMENT MANAGEMENT LLP $380,247,608 0.27% 773,600 View
Large DekaBank Deutsche Girozentrale Bank $379,777,212 0.27% 772,643 View
Large Cantillon Capital Management LLC $378,329,657 0.27% 769,698 View
Large FIRST MANHATTAN CO. LLC. $377,082,154 0.27% 767,160 View
Large D1 Capital Partners L.P. $356,361,707 0.25% 725,005 View
Mega HSBC HOLDINGS PLC $353,386,958 0.25% 718,953 View
Large KING LUTHER CAPITAL MANAGEMENT CORP $348,737,585 0.25% 709,494 View
Large BAILLIE GIFFORD & CO $343,304,703 0.25% 698,441 View
Mega California Public Employees Retirement System Pension $342,394,391 0.24% 696,589 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $329,374,253 0.24% 670,100 View
Mega BNP PARIBAS ARBITRAGE, SA $326,930,365 0.23% 665,128 View
Mid Longview Partners (Guernsey) LTD $325,799,846 0.23% 662,828 View
Mega JANUS HENDERSON GROUP PLC $324,536,613 0.23% 660,258 View
Large Ninety One UK Ltd $313,233,390 0.22% 637,262 View
Large Handelsbanken Fonder AB $312,037,006 0.22% 634,828 View
Large Robeco Institutional Asset Management B.V. $311,944,107 0.22% 634,639 View
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $311,811,394 0.22% 634,369 View
Mega VICTORY CAPITAL MANAGEMENT INC $308,535,347 0.22% 627,704 View
Mega PRINCIPAL FINANCIAL GROUP INC $307,069,112 0.22% 624,721 View
Mid Lindsell Train Ltd $303,377,722 0.22% 617,211 View
Mid Mirova US LLC $302,335,187 0.22% 615,090 View
Mega ENVESTNET ASSET MANAGEMENT INC $301,498,112 0.22% 613,387 View
Mega RHUMBLINE ADVISERS $300,791,783 0.22% 611,950 View
Large Vontobel Holding Ltd. $295,517,663 0.21% 601,220 View
Mid C WorldWide Group Holding A/S $290,760,639 0.21% 591,542 View
Large B. Metzler seel. Sohn & Co. AG $285,721,472 0.20% 581,290 View
Mega BANK OF MONTREAL /CAN/ Bank $284,616,019 0.20% 579,041 View
Mega CITIGROUP INC $281,242,158 0.20% 572,177 View
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $281,062,260 0.20% 571,811 View
Mega CANADA PENSION PLAN INVESTMENT BOARD Pension $276,446,302 0.20% 562,420 View
Large Balyasny Asset Management L.P. $273,031,643 0.20% 555,473 View
Large NATIXIS ADVISORS, LLC $270,443,246 0.19% 550,207 View
Large ADAGE CAPITAL PARTNERS GP, L.L.C. $268,292,802 0.19% 545,832 View
Mega FIL Ltd $261,428,585 0.19% 531,867 View
Mega JANE STREET GROUP, LLC $261,149,889 0.19% 531,300 View
Mid LORING WOLCOTT & COOLIDGE FIDUCIARY ADVISORS LLP/MA $261,111,057 0.19% 531,221 View
Large Ensign Peak Advisors, Inc $253,909,652 0.18% 516,570 View
Large ROYAL LONDON ASSET MANAGEMENT LTD $249,961,683 0.18% 508,538 View
Mega TD Asset Management Inc $235,863,127 0.17% 479,855 View
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