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Ametek Inc

AME
Exchange
NYSE
Industry
Industrial Instruments For Measurement, Display, and Control
SEC CIK
0001037868

In the last 90 days, Ametek Inc insiders filed 1 open-market purchase and 1 sale; 1,201 institutions reported holding it in 13F filings for Q2 2026, worth $49.7B in total; superinvestors Giverny Capital and ARK Invest hold it.

13F holders, Q3 2025

Institutional positions in Ametek Inc as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,034
+47 vs. Q2 2025
Shares held
199.4M
−280.9K (−0.1%) vs. Q2 2025
Total value
$37.4B
+$1.30B (+3.6%) vs. Q2 2025
New holders
120
390 more added
Sold out
73
341 more reduced

17 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting AME on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 1,034 institutions
Q1 2021: 695 institutionsQ2 2021: 723 institutionsQ3 2021: 719 institutionsQ4 2021: 772 institutionsQ1 2022: 753 institutionsQ2 2022: 745 institutionsQ3 2022: 753 institutionsQ4 2022: 790 institutionsQ1 2023: 777 institutionsQ2 2023: 823 institutionsQ3 2023: 814 institutionsQ4 2023: 859 institutionsQ1 2024: 910 institutionsQ2 2024: 900 institutionsQ3 2024: 916 institutionsQ4 2024: 989 institutionsQ1 2025: 1,000 institutionsQ2 2025: 1,004 institutionsQ3 2025: 1,034 institutionsQ4 2025: 1,128 institutionsQ1 2026: 1,159 institutionsQ2 2026: 1,201 institutions
Value heldQ3 2025: $37.4B
Q1 2021: $25.4BQ2 2021: $26.8BQ3 2021: $24.9BQ4 2021: $29.5BQ1 2022: $26.6BQ2 2022: $21.7BQ3 2022: $22.7BQ4 2022: $28.9BQ1 2023: $29.2BQ2 2023: $32.6BQ3 2023: $29.9BQ4 2023: $33.3BQ1 2024: $37.0BQ2 2024: $33.9BQ3 2024: $34.3BQ4 2024: $36.0BQ1 2025: $34.7BQ2 2025: $36.8BQ3 2025: $37.4BQ4 2025: $42.1BQ1 2026: $43.0BQ2 2026: $49.7B
Institutions holding AME and their total value by quarter
QuarterHoldersValue
Q2 20261,201$49.7B
Q1 20261,159$43.0B
Q4 20251,128$42.1B
Q3 20251,034$37.4B
Q2 20251,004$36.8B
Q1 20251,000$34.7B
Q4 2024989$36.0B
Q3 2024916$34.3B
Q2 2024900$33.9B
Q1 2024910$37.0B
Q4 2023859$33.3B
Q3 2023814$29.9B
Q2 2023823$32.6B
Q1 2023777$29.2B
Q4 2022790$28.9B
Q3 2022753$22.7B
Q2 2022745$21.7B
Q1 2022753$26.6B
Q4 2021772$29.5B
Q3 2021719$24.9B
Q2 2021723$26.8B
Q1 2021695$25.4B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Ametek Inc; share changes are against Q2 2025.

Institutions holding AME in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Mizuho Securities USA LLC16,821$3.11M0.06%+866+5.4%Added
GAM Holding AG16,522$3.11M0.19%−13,427−44.8%Reduced
Wiley Bros.-Aintree Capital, LLC16,384$3.08M0.02%+1,919+13.3%Added
Landscape Capital Management, L.L.C.16,350$3.07M0.19%+16,350New
Tredje AP-fonden16,276$3.06M0.02%−1,868−10.3%Reduced
Capital International Sarl15,910$2.99M0.05%−2,281−12.5%Reduced
Jacobs Levy Equity Management, Inc15,840$2.98M0.01%−35,450−69.1%Reduced
Entropy Technologies, LP15,558$2.92M0.22%−15,053−49.2%Reduced
Colony Group, LLC16,914$2.89M0.00%+3,695+28.0%Added
Summit Trail Advisors, LLC15,273$2.87M0.04%+6,125+67.0%Added
Drake & Associates, LLC14,293$2.83M0.59%−1,129−7.3%Reduced
Perigon Wealth Management, LLC15,047$2.83M0.06%+701+4.9%Added
Erste Asset Management GmbH15,121$2.83M0.03%−105,464−87.5%Reduced
Accurate Wealth Management, LLC15,131$2.81M0.37%+15,131New
Sit Investment Associates Inc14,675$2.76M0.06%00.0%Unchanged
Mirabella Financial Services LLP14,494$2.72M0.24%+7,846+118.0%Added
Kentucky Retirement Systems14,464$2.72M0.08%−328−2.2%Reduced
Bridge Creek Capital Management LLC14,442$2.72M0.75%−298−2.0%Reduced
Apollon Wealth Management, LLC14,435$2.71M0.05%+1,089+8.2%Added
Freedom Day Solutions, LLC14,424$2.71M0.74%+939+7.0%Added
Buckingham Strategic Partners14,048$2.69M0.03%+2,688+23.7%Added
Fairvoy Private Wealth, LLC14,271$2.68M0.61%+573+4.2%Added
Aigen Investment Management, LP14,196$2.67M0.41%−6,844−32.5%Reduced
Bleakley Financial Group, LLC14,024$2.64M0.06%+425+3.1%Added
LGT Fund Management Co Ltd.13,978$2.62M0.21%−10−0.1%Reduced
Alps Advisors Inc13,900$2.61M0.01%+5,226+60.2%Added
Medallion Wealth Advisors, LLC13,889$2.61M0.93%00.0%Unchanged
Hartford Investment Management Co13,569$2.55M0.08%−410−2.9%Reduced
Bryn Mawr Trust Co13,413$2.52M0.06%−750−5.3%Reduced
Delta Global Management LP13,307$2.50M0.18%−766−5.4%Reduced
Intrust Bank NA13,212$2.48M0.21%−207−1.5%Reduced
Norinchukin Bank, The12,981$2.44M0.03%+314+2.5%Added
Kensington Investment Counsel, LLC12,944$2.43M0.99%−801−5.8%Reduced
Ferguson Wellman Capital Management, Inc12,475$2.35M0.04%−16−0.1%Reduced
Northwestern Mutual Wealth Management Co12,419$2.33M0.00%−831−6.3%Reduced
Burney Co12,411$2.33M0.07%−1,102−8.2%Reduced
MML Investors Services, LLC12,262$2.31M0.01%−316−2.5%Reduced
Dai-Ichi Life Insurance Company, Ltd12,180$2.29M0.06%00.0%Unchanged
Louisiana State Employees Retirement System12,100$2.27M0.04%−100−0.8%Reduced
BI Asset Management Fondsmaeglerselskab A/S11,859$2.23M0.02%+2,487+26.5%Added
Rathbone Brothers plc11,851$2.23M0.01%−50−0.4%Reduced
Harvest Portfolios Group Inc.11,809$2.22M0.04%+838+7.6%Added
Manchester Capital Management LLC11,741$2.21M0.30%+11,741New
Cambridge Investment Research Advisors, Inc.11,659$2.19M0.01%+6,543+127.9%Added
Convergence Financial, LLC11,597$2.18M0.33%+499+4.5%Added
Gulf International Bank (UK) Ltd11,567$2.17M0.07%−194−1.6%Reduced
Maryland State Retirement & Pension System11,487$2.16M0.05%+290+2.6%Added
Cypress Advisory Group LLC11,405$2.14M1.59%+45+0.4%Added
Tikehau Investment Management11,250$2.12M3.09%+5,150+84.4%Added
CIBC World Markets Inc.11,114$2.09M0.00%−788−6.6%Reduced
Securian Asset Management, Inc11,061$2.08M0.06%−1,018−8.4%Reduced
Rockefeller Capital Management L.P.11,025$2.07M0.00%+673+6.5%Added
Cove Private Wealth, LLC11,000$2.07M0.66%00.0%Unchanged
Valley National Advisers Inc10,966$2.06M0.32%+10,966New
Investment Management Corp of Ontario10,840$2.04M0.03%+5,214+92.7%Added
iA Global Asset Management Inc.10,821$2.03M0.03%+10,821New
Farringdon Capital, Ltd.10,808$2.03M0.52%+6,415+146.0%Added
Mirabaud & Cie SA10,800$2.03M0.65%00.0%Unchanged
Plato Investment Management Ltd10,704$2.00M0.14%00.0%Unchanged
S-Bank Fund Management Ltd10,616$2.00M0.26%−138−1.3%Reduced
We Are One Seven, LLC10,560$1.99M0.05%+834+8.6%Added
New Mexico Educational Retirement Board10,450$1.97M0.06%−400−3.7%Reduced
Candriam Luxembourg S.C.A.10,430$1.96M0.01%00.0%Unchanged
Advisors Asset Management, Inc.10,337$1.94M0.03%+2,534+32.5%Added
Sumitomo Life Insurance Co10,158$1.91M0.06%−306−2.9%Reduced
Toroso Investments, LLC10,070$1.89M0.01%−2,108−17.3%Reduced
Trivant Custom Portfolio Group, LLC9,806$1.84M0.95%+37+0.4%Added
Harfst & Associates, Inc.9,614$1.81M0.33%+86+0.9%Added
Resources Management Corp9,604$1.81M0.23%−25−0.3%Reduced
Tower Research Capital LLC (TRC)9,463$1.78M0.05%+382+4.2%Added
Oppenheimer & Co Inc9,336$1.76M0.02%−1,203−11.4%Reduced
Rodgers Brothers Inc.9,250$1.74M0.21%00.0%Unchanged
Wasatch Advisors Inc9,218$1.73M0.01%+1,889+25.8%Added
AG2R la Mondiale Gestion D'Actifs9,560$1.73M0.09%00.0%Unchanged
Portfolio Design Labs, LLC9,124$1.72M0.29%−9,746−51.6%Reduced
QRG Capital Management, Inc.8,967$1.69M0.02%+2,078+30.2%Added
Prudential PLC8,857$1.67M0.01%−94,998−91.5%Reduced
Illumine Investment Management, LLC8,848$1.66M1.19%−152−1.7%Reduced
Crossmark Global Holdings, Inc.8,828$1.66M0.02%−1,027−10.4%Reduced
Vestmark Advisory Solutions, Inc.8,827$1.66M0.03%−5,004−36.2%Reduced
Vident Advisory, LLC8,785$1.65M0.02%+669+8.2%Added
Affinity Capital Advisors, LLC8,844$1.65M0.25%00.0%Unchanged
Mayfair Advisory Group, LLC8,698$1.64M0.70%00.0%Unchanged
AustralianSuper Pty Ltd8,676$1.63M0.01%−216,057−96.1%Reduced
E. Ohman J:or Asset Management AB8,640$1.62M0.04%00.0%Unchanged
Gateway Investment Advisers LLC8,628$1.62M0.02%+30+0.3%Added
Polymer Capital Management (US) LLC8,500$1.60M0.21%−7,660−47.4%Reduced
Diversified Trust Co8,474$1.59M0.03%−872−9.3%Reduced
Intech Investment Management LLC8,416$1.58M0.01%−44−0.5%Reduced
Absher Wealth Management, LLC8,343$1.57M0.19%+5+0.1%Added
Addison Capital Co8,296$1.56M0.46%+8,296New
Carret Asset Management, LLC8,275$1.56M0.15%00.0%Unchanged
Empirical Finance, LLC8,173$1.54M0.07%+78+1.0%Added
Crestwood Advisors Group LLC8,154$1.53M0.03%+186+2.3%Added
WoodTrust Financial Corp8,143$1.53M0.18%−14,768−64.5%Reduced
Adviser Investments LLC8,052$1.51M0.02%+5,235+185.8%Added
WBI Investments8,042$1.51M0.39%+5,099+173.3%Added
Atria Investments LLC7,945$1.49M0.02%−310−3.8%Reduced
Value Partners Investments Inc.7,873$1.48M0.12%+320+4.2%Added
ICW Investment Advisors LLC7,780$1.46M0.53%+396+5.4%Added