AMETEK, Inc.
MX ˙ BMV ˙ US0311001004
SecurityMX:AME / AMETEK, Inc.
InstitutionMarsico Capital Management Llc
Latest Disclosed Ownership108,566 shares
Latest Disclosed Value $ 23,272,208
Marsico Capital Management Llc reports 123.23% increase in ownership of AME / AMETEK, Inc.

On May 13, 2026 - Marsico Capital Management Llc filed a 13F-HR form disclosing ownership of 108,566 shares of AMETEK, Inc. (MX:AME) valued at $23,272,208 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 48,635 shares of AMETEK, Inc.. This represents a change in shares of 123.23% during the quarter.

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.

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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)
2026-05-13 2026-03-31 13F AMETEK COM 031100100 108,566 59,931 123.23 23,272 133.07 0.6839
2026-02-12 2025-12-31 13F AMETEK COM 031100100 48,635 0 0.00 9,985 9.21 0.2780
2025-11-12 2025-09-30 13F AMETEK COM 031100100 48,635 0 0.00 9,143 3.90 0.2346
2025-08-12 2025-06-30 13F AMETEK COM 031100100 48,635 0 0.00 8,801 5.11 0.2387
2025-05-14 2025-03-31 13F AMETEK COM 031100100 48,635 0 0.00 8,372 -4.49 0.2874
2025-02-13 2024-12-31 13F AMETEK COM 031100100 48,635 0 0.00 8,767 4.97 0.2384
2024-11-12 2024-09-30 13F AMETEK COM 031100100 48,635 0 0.00 8,351 3.01 0.2333
2024-08-12 2024-06-30 13F AMETEK COM 031100100 48,635 0 0.00 8,108 -8.86 0.2424
2024-05-13 2024-03-31 13F AMETEK COM 031100100 48,635 0 0.00 8,895 10.92 0.2923
2024-02-13 2023-12-31 13F AMETEK COM 031100100 48,635 0 0.00 8,019 11.59 0.3139
2023-11-09 2023-09-30 13F AMETEK COM 031100100 48,635 0 0.00 7,186 -8.73 0.3079
2023-08-11 2023-06-30 13F AMETEK COM 031100100 48,635 0 0.00 7,873 11.39 0.3138
2023-05-12 2023-03-31 13F AMETEK COM 031100100 48,635 0 0.00 7,068 4.02 0.3309
2023-02-13 2022-12-31 13F AMETEK COM 031100100 48,635 0 0.00 6,795 23.19 0.3515
2022-11-10 2022-09-30 13F AMETEK COM 031100100 48,635 0 0.00 5,516 3.20 0.2967
2022-08-12 2022-06-30 13F AMETEK COM 031100100 48,635 0 0.00 5,345 -17.48 0.2610
2022-05-13 2022-03-31 13F AMETEK COM 031100100 48,635 0 0.00 6,477 -9.43 0.2258
2022-02-14 2021-12-31 13F AMETEK COM 031100100 48,635 0 0.00 7,151 18.57 0.2086
2021-11-12 2021-09-30 13F AMETEK COM 031100100 48,635 0 0.00 6,031 -7.12 0.1848
2021-08-16 2021-06-30 13F AMETEK COM 031100100 48,635 0 0.00 6,493 4.52 0.1608
2021-05-17 2021-03-31 13F AMETEK COM 031100100 48,635 0 0.00 6,212 5.61 0.1619
2021-02-16 2020-12-31 13F AMETEK COM 031100100 48,635 0 0.00 5,882 21.68 0.1524
2020-11-13 2020-09-30 13F AMETEK COM 031100100 48,635 -22,351 -31.49 4,834 -23.80 0.1341
2020-08-14 2020-06-30 13F AMETEK COM 031100100 70,986 0 0.00 6,344 24.10 0.1995
2020-05-15 2020-03-31 13F AMETEK COM 031100100 70,986 -15,505 -17.93 5,112 -40.74 0.2196
2020-02-14 2019-12-31 13F AMETEK INC COM 031100100 86,491 0 0.00 8,627 8.63 0.3076
2019-11-14 2019-09-30 13F AMETEK INC COM 031100100 86,491 0 0.00 7,942 1.08 0.3096
2019-08-14 2019-06-30 13F AMETEK INC COM 031100100 86,491 0 0.00 7,857 9.49 0.2805
2019-05-15 2019-03-31 13F AMETEK INC COM 031100100 86,491 16,481 23.54 7,176 51.39 0.2588
2019-02-14 2018-12-31 13F AMETEK INC COM 031100100 70,010 0 0.00 4,740 -14.42 0.2000
2018-11-14 2018-09-30 13F AMETEK INC COM 031100100 70,010 13,792 24.53 5,539 36.53 0.1871
2018-08-14 2018-06-30 13F AMETEK INC COM 031100100 56,218 0 0.00 4,057 -5.01 0.1454
2018-05-15 2018-03-31 13F AMETEK INC COM 031100100 56,218 0 0.00 4,271 4.84 0.1605
2018-02-14 2017-12-31 13F AMETEK INC COM 031100100 56,218 0 0.00 4,074 9.72 0.1627
2017-11-14 2017-09-30 13F AMETEK INC COM 031100100 56,218 0 0.00 3,713 9.05 0.1490
2017-08-14 2017-06-30 13F AMETEK INC COM 031100100 56,218 14,661 35.28 3,405 51.54 0.1425
2017-05-15 2017-03-31 13F AMETEK INC COM 031100100 41,557 41,557 2,247 0.0973
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.