Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in AME held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 18.8M | $4.04B | -4.2% | 8.220% | 0.07% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 14.9M | $3.20B | — | 6.516% | 0.08% |
| 3 | STATE STREET CORP | 10.1M | $2.16B | +1.3% | 4.402% | 0.07% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 9.9M | $2.11B | — | 4.301% | 0.11% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 6.1M | $1.31B | +4.0% | 2.674% | 0.08% |
| 6 | FMR LLC | 4.4M | $934.2M | -3.1% | 1.903% | 0.05% |
| 7 | MORGAN STANLEY | 3.9M | $829.2M | -2.4% | 1.689% | 0.05% |
| 8 | FLOSSBACH VON STORCH AG | 3.5M | $741.3M | -9.5% | 1.510% | 3.46% |
| 9 | Invesco Ltd. | 3.1M | $671.1M | -26.9% | 1.367% | 0.10% |
| 10 | WELLINGTON MANAGEMENT GROUP LLP | 2.8M | $599.6M | -0.4% | 1.221% | 0.11% |
| 11 | Bank of New York Mellon Corp | 2.5M | $536.9M | +5.0% | 1.094% | 0.10% |
| 12 | NORTHERN TRUST CORP | 2.4M | $503.8M | +0.5% | 1.026% | 0.07% |
| 13 | DIMENSIONAL FUND ADVISORS LP | 2.1M | $444.8M | +1.4% | 0.906% | 0.09% |
| 14 | EdgePoint Investment Group Inc. | 1.9M | $401.8M | -35.8% | 0.818% | 3.22% |
| 15 | Capital World Investors | 1.8M | $396.4M | +69.5% | 0.807% | 0.05% |
| 16 | PRINCIPAL FINANCIAL GROUP INC | 1.8M | $381.2M | -12.7% | 0.776% | 0.20% |
| 17 | GOLDMAN SACHS GROUP INC | 1.7M | $361.1M | -27.7% | 0.735% | 0.04% |
| 18 | BANK OF AMERICA CORP /DE/ | 1.6M | $353.3M | +7.5% | 0.720% | 0.03% |
| 19 | UBS ASSET MANAGEMENT AMERICAS INC | 1.6M | $349.9M | +7.9% | 0.713% | 0.07% |
| 20 | TWO SIGMA INVESTMENTS, LP | 1.6M | $349.6M | +61.4% | 0.712% | 0.28% |
| 21 | LAZARD ASSET MANAGEMENT LLC | 1.6M | $346.9M | +4.6% | 0.707% | 0.57% |
| 22 | CITADEL ADVISORS LLC | 1.5M | $321.3M | -15.3% | 0.654% | 0.15% |
| 23 | ROYAL BANK OF CANADA | 1.4M | $310.2M | -0.1% | 0.632% | 0.05% |
| 24 | Qube Research & Technologies Ltd | 1.4M | $308.2M | +28.2% | 0.628% | 0.36% |
| 25 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1.4M | $305.9M | +47.3% | 0.617% | 0.10% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in AME — a direct measure of their conviction.
Filings activity in AME during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 1,131 | +2.4% | 74.95% | 0.11 pp | $38.99B | 0.2% |
| Q4 2025 | 1,105 | +9.8% | 75.06% | +9.48 pp | $39.05B | +14% |
| Q3 2025 | 1,006 | +1.5% | 65.58% | +1.42 pp | $34.12B | +2.2% |
| Q2 2025 | 991 | +2.0% | 64.16% | +4.50 pp | $33.38B | +7.6% |
| Q1 2025 | 972 | +1.8% | 59.66% | 3.57 pp | $31.04B | 5.6% |
| Q4 2024 | 955 | +7.9% | 63.23% | +4.32 pp | $32.90B | +7.3% |
| Q3 2024 | 885 | +1.5% | 58.91% | 6.11 pp | $30.65B | 9.4% |
| Q2 2024 | 872 | — | 65.02% | — | $33.83B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying AME stock.
Based on Q1 2026 13F filings, institutional ownership of AMETEK, Inc. stands at 75.0%, held across 1,131 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of AME, with approximately 18,828,257 shares worth $4.04B as of Q1 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of AME, including TWO SIGMA INVESTMENTS, LP, CITADEL ADVISORS LLC.
Our composite Smart Money Score for AME is 60 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
145 institutions opened new positions in AME during Q1 2026, while 119 fully exited. 764 added to existing positions and 220 trimmed.
AME institutional ownership fell by 0.11 percentage points quarter-over-quarter, with a net change of +26 holders.
The top 10 institutions account for 42.6% of all reported 13F value in AME, and the top 25 account for 57.1%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
AMETEK, Inc. (AME) Institutional Ownership