AMETEK, Inc.
MX ˙ BMV ˙ US0311001004
SecurityMX:AME / AMETEK, Inc.
InstitutionNorthwestern Mutual Wealth Management Co
Latest Disclosed Ownership13,380 shares
Latest Disclosed Value $ 2,868,061
Northwestern Mutual Wealth Management Co reports 7.91% increase in ownership of AME / AMETEK, Inc.

On May 7, 2026 - Northwestern Mutual Wealth Management Co filed a 13F-HR form disclosing ownership of 13,380 shares of AMETEK, Inc. (MX:AME) valued at $2,868,061 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 10, 2026 disclosing 12,399 shares of AMETEK, Inc.. This represents a change in shares of 7.91% 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.

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)
2026-05-07 2026-03-31 13F AMETEK COM 031100100 13,380 981 7.91 2,868 12.69 0.0018
2026-02-10 2025-12-31 13F/A-1 AMETEK COM 031100100 12,399 -20 -0.16 2,546 9.04 0.0016
2026-02-05 2025-12-31 13F AMETEK COM 031100100 391,341 378,922 40,757 0.0257
2025-11-14 2025-09-30 13F AMETEK COM 031100100 12,419 -831 -6.27 2,335 -2.63 0.0016
2025-08-13 2025-06-30 13F AMETEK COM 031100100 13,250 -410 -3.00 2,398 1.96 0.0017
2025-05-14 2025-03-31 13F AMETEK COM 031100100 13,660 5,967 77.56 2,351 69.62 0.0019
2025-02-11 2024-12-31 13F AMETEK COM 031100100 7,693 -119 -1.52 1,387 3.36 0.0012
2024-11-12 2024-09-30 13F AMETEK COM 031100100 7,812 -469 -5.66 1,341 -2.83 0.0012
2024-08-16 2024-06-30 13F AMETEK COM 031100100 8,281 -95 -1.13 1,381 -9.92 0.0014
2024-05-15 2024-03-31 13F AMETEK COM 031100100 8,376 -536 -6.01 1,532 4.29 0.0016
2024-02-13 2023-12-31 13F AMETEK COM 031100100 8,912 2,445 37.81 1,470 53.82 0.0017
2023-11-14 2023-09-30 13F AMETEK COM 031100100 6,467 314 5.10 956 -4.12 0.0012
2023-08-14 2023-06-30 13F AMETEK COM 031100100 6,153 239 4.04 996 15.95 0.0013
2023-05-15 2023-03-31 13F AMETEK COM 031100100 5,914 -236 -3.84 860 0.00 0.0012
2023-02-21 2022-12-31 13F AMETEK COM 031100100 6,150 -358 -5.50 859 16.55 0.0013
2022-11-14 2022-09-30 13F AMETEK COM 031100100 6,508 -5,403 -45.36 737 -43.65 0.0013
2022-08-04 2022-06-30 13F AMETEK COM 031100100 11,911 5,102 74.93 1,308 44.21 0.0022
2022-05-09 2022-03-31 13F AMETEK COM 031100100 6,809 282 4.32 907 -5.52 0.0015
2022-02-03 2021-12-31 13F AMETEK COM 031100100 6,527 1,789 37.76 960 63.54 0.0016
2021-11-15 2021-09-30 13F AMETEK COM 031100100 4,738 218 4.82 587 -2.81 0.0011
2021-08-13 2021-06-30 13F AMETEK COM 031100100 4,520 1,261 38.69 604 45.19 0.0011
2021-05-14 2021-03-31 13F AMETEK COM 031100100 3,259 272 9.11 416 14.92 0.0009
2021-02-12 2020-12-31 13F AMETEK COM 031100100 2,987 325 12.21 362 36.60 0.0008
2020-11-13 2020-09-30 13F AMETEK COM 031100100 2,662 -49 -1.81 265 9.50 0.0007
2020-08-14 2020-06-30 13F AMETEK COM 031100100 2,711 583 27.40 242 58.17 0.0007
2020-05-08 2020-03-31 13F AMETEK COM 031100100 2,128 -485 -18.56 153 -41.38 0.0006
2020-02-13 2019-12-31 13F AMETEK INC COM 031100100 2,613 -605 -18.80 261 -11.82 0.0009
2019-11-12 2019-09-30 13F AMETEK INC COM 031100100 3,218 1,774 122.85 296 125.95 0.0011
2019-08-12 2019-06-30 13F AMETEK INC COM 031100100 1,444 -6,761 -82.40 131 -80.76 0.0005
2019-05-10 2019-03-31 13F AMETEK INC COM 031100100 8,205 7,529 1,113.76 681 1,380.43 0.0030
2019-02-12 2018-12-31 13F AMETEK INC COM 031100100 676 197 41.13 46 21.05 0.0002
2018-11-01 2018-09-30 13F AMETEK INC COM 031100100 479 38 8.62 38 22.58 0.0002
2018-08-10 2018-06-30 13F AMETEK INC COM 031100100 441 -231 -34.38 31 -39.22 0.0002
2018-05-14 2018-03-31 13F AMETEK INC COM 031100100 672 -29 -4.14 51 0.00 0.0003
2018-01-31 2017-12-31 13F AMETEK INC COM 031100100 701 -16 -2.23 51 8.51 0.0003
2017-11-07 2017-09-30 13F AMETEK INC COM 031100100 717 44 6.54 47 14.63 0.0003
2017-08-10 2017-06-30 13F AMETEK INC COM 031100100 673 0 0.00 41 10.81 0.0003
2017-05-09 2017-03-31 13F AMETEK INC COM 031100100 673 -355 -34.53 37 -27.45 0.0003
2017-02-15 2016-12-31 13F AMETEK INC COM 031100100 1,028 262 34.20 51 37.84 0.0006
2016-11-14 2016-09-30 13F AMETEK INC COM 031100100 766 -698 -47.68 37 -45.59 0.0006
2016-08-29 2016-06-30 13F AMETEK INC COM 031100100 1,464 300 25.77 68 15.25 0.0010
2016-05-16 2016-03-31 13F AMETEK INC COM 031100100 1,164 849 269.52 59 247.06 0.0010
2016-02-16 2015-12-31 13F AMETEK INC COM 031100100 315 125 65.79 17 70.00 0.0003
2015-11-16 2015-09-30 13F AMETEK INC COM 031100100 190 -157 -45.24 10 -47.37 0.0002
2015-09-30 2015-06-30 13F/A-1 AMETEK INC COM 031100100 347 -6 -1.70 19 5.56 0.0005
2015-08-14 2015-06-30 13F AMETEK INC COM 031100100 353 19
2015-05-15 2015-03-31 13F AMETEK INC COM 031100100 353 -715 -66.95 18 -67.86 0.0005
2015-02-13 2014-12-31 13F AMETEK INC COM 031100100 1,068 29 2.79 56 7.69 0.0017
2014-11-14 2014-09-30 13F AMETEK INC COM 031100100 1,039 174 20.12 52 15.56 0.0018
2014-08-05 2014-06-30 13F AMETEK INC COM 031100100 865 190 28.15 45 28.57 0.0018
2014-05-15 2014-03-31 13F AMETEK INC COM 031100100 675 675 -99.53 35 -99.42 0.0015
2013-11-14 2013-09-30 13F AMETEK INC COM 031100100 0 -142,850 -100.00 0 -100.00
2013-08-14 2013-06-30 13F AMETEK INC COM 031100100 142,850 142,850 6,043 0.0664
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.