AMETEK, Inc.
MX ˙ BMV ˙ US0311001004
SecurityMX:AME / AMETEK, Inc.
InstitutionFactory Mutual Insurance Co
Latest Disclosed Ownership217,300 shares
Latest Disclosed Value $ 46,580,428
Factory Mutual Insurance Co reports 1.02% increase in ownership of AME / AMETEK, Inc.

On May 5, 2026 - Factory Mutual Insurance Co filed a 13F-HR form disclosing ownership of 217,300 shares of AMETEK, Inc. (MX:AME) valued at $46,580,428 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 215,100 shares of AMETEK, Inc.. This represents a change in shares of 1.02% 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)
2026-05-05 2026-03-31 13F AMETEK COM 031100100 217,300 2,200 1.02 46,580 5.48 0.5240
2026-01-23 2025-12-31 13F AMETEK COM 031100100 215,100 13,300 6.59 44,162 16.41 0.4477
2025-11-10 2025-09-30 13F AMETEK COM 031100100 201,800 0 0.00 37,938 3.89 0.3695
2025-08-07 2025-06-30 13F AMETEK COM 031100100 201,800 30,500 17.81 36,518 23.84 0.3991
2025-04-17 2025-03-31 13F AMETEK COM 031100100 171,300 0 0.00 29,488 -4.50 0.3421
2025-01-24 2024-12-31 13F AMETEK COM 031100100 171,300 0 0.00 30,879 4.98 0.3339
2024-10-10 2024-09-30 13F AMETEK COM 031100100 171,300 0 0.00 29,414 3.00 0.3042
2024-07-23 2024-06-30 13F AMETEK COM 031100100 171,300 76,600 80.89 28,557 64.88 0.3253
2024-04-12 2024-03-31 13F AMETEK COM 031100100 94,700 0 0.00 17,321 10.92 0.1990
2024-01-23 2023-12-31 13F AMETEK COM 031100100 94,700 20,000 26.77 15,615 41.48 0.1939
2023-11-07 2023-09-30 13F AMETEK COM 031100100 74,700 21,500 40.41 11,038 28.16 0.1540
2023-07-27 2023-06-30 13F AMETEK COM 031100100 53,200 17,500 49.02 8,612 66.00 0.1270
2023-05-08 2023-03-31 13F AMETEK COM 031100100 35,700 35,700 5,188 0.0811
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.