AMETEK, Inc.
US ˙ NYSE ˙ US0311001004

SecurityAME / AMETEK, Inc.
InstitutionWiley Bros.-aintree Capital, Llc
Latest Disclosed Ownership19,812 shares
Latest Disclosed Value $ 4,251,030
Wiley Bros.-aintree Capital, Llc reports 3.52% increase in ownership of AME / AMETEK, Inc.

On May 15, 2026 - Wiley Bros.-aintree Capital, Llc filed a 13F-HR form disclosing ownership of 19,812 shares of AMETEK, Inc. (US:AME) valued at $4,246,900 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 19,139 shares of AMETEK, Inc.. This represents a change in shares of 3.52% during the quarter. The current value of the position is $4,521,693 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F AMETEK COM 031100100 19,812 673 3.52 4,251 8.20 0.0210
2026-02-17 2025-12-31 13F AMETEK COM 031100100 19,139 2,755 16.82 3,930 27.65 0.0206
2025-11-14 2025-09-30 13F AMETEK COM 031100100 16,384 1,919 13.27 3,078 17.98 0.0197
2025-08-14 2025-06-30 13F AMETEK COM 031100100 14,465 1,581 12.27 2,610 18.11 0.0200
2025-05-15 2025-03-31 13F AMETEK COM 031100100 12,884 1,841 16.67 2,209 11.51 0.0235
2025-02-14 2024-12-31 13F AMETEK COM 031100100 11,043 1,831 19.88 1,982 25.62 0.0238
2024-11-14 2024-09-30 13F AMETEK COM 031100100 9,212 5,782 168.57 1,578 176.18 0.0304
2024-07-24 2024-06-30 13F AMETEK COM 031100100 3,430 2,151 168.18 572 145.06 0.0250
2024-04-11 2024-03-31 13F AMETEK COM 031100100 1,279 1,279 234 0.0322
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.