安費諾公司
MX ˙ BMV ˙ US0320951017
SecurityMX:APH / Amphenol Corporation
InstitutionJpmorgan Chase & Co
Latest Disclosed Ownership49,270,578 shares
Latest Disclosed Value $ 5,870,589,642
Jpmorgan Chase & Co ownership in APH / Amphenol Corporation

On May 13, 2026 - Jpmorgan Chase & Co filed a 13F-HR/A form disclosing ownership of 49,270,578 shares of Amphenol Corporation (MX:APH) valued at $5,870,589,642 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 34,325,148 shares of Amphenol Corporation. This represents a change in shares of 43.54% during the quarter.

Jpmorgan Chase & Co has a history of taking positions in derivatives of the underlying security (APH) in the form of stock options. The firm currently holds call options representing 65,000 of underlying shares valued at $7,744,750 USD and put options representing 116,000 of underlying shares valued at $13,821,400 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:APH / Amphenol Corporation Historical Put/Call Ratio
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/A-1 AMPHENOL COMMON 032095101 49,270,578 14,945,430 43.54 5,870,590 26.56 0.3770
2026-02-11 2025-12-31 13F AMPHENOL CORP COMMON 032095101 34,325,148 17,391,036 102.70 4,638,701 121.35 0.2912
2025-11-26 2025-09-30 13F/A-1 AMPHENOL CORP COMMON 032095101 16,934,112 1,873,586 12.44 2,095,599 40.91 0.1256
2025-11-07 2025-09-30 13F AMPHENOL CORP COMMON 032095101 16,934,112 1,873,586 2,095,599 0.0133
2025-08-12 2025-06-30 13F AMPHENOL CORP COMMON 032095101 15,060,526 -2,727,697 -15.33 1,487,227 27.47 0.0973
2025-05-12 2025-03-31 13F AMPHENOL CORP COMMON 032095101 17,788,223 -57,378 -0.32 1,166,730 -5.86 0.0852
2025-02-12 2024-12-31 13F AMPHENOL CORP COMMON 032095101 17,845,601 -3,045,728 -14.58 1,239,377 -8.95 0.0923
2024-12-26 2024-09-30 13F/A-1 AMPHENOL CORP CL A COMMON 032095101 20,891,329 -6,740,552 -24.39 1,361,279 -26.87 0.1034
2024-11-08 2024-09-30 13F AMPHENOL CORP CL A COMMON 032095101 20,891,329 -6,740,552 1,361,279 0.1038
2024-12-26 2024-06-30 13F/A-1 Amphenol Corp Cl A COM 032095101 27,631,881 11,229,078 68.46 1,861,560 -1.61 0.1526
2024-08-12 2024-06-30 13F Amphenol Corp Cl A COM 032095101 27,631,881 11,229,078 1,861,560 0.1529
2024-12-26 2024-03-31 13F/A-1 Amphenol Corp Cl A COMMON 032095101 16,402,803 -1,323,437 -7.47 1,892,063 7.67 0.1598
2024-05-10 2024-03-31 13F Amphenol Corp Cl A COMMON 032095101 16,402,803 -1,323,437 1,892,063 0.1600
2024-12-26 2023-12-31 13F/A-1 AMPHENOL CORP COMMON 032095101 17,726,240 2,446,329 16.01 1,757,202 36.92 0.1685
2024-02-12 2023-12-31 13F AMPHENOL CORP COMMON 032095101 17,726,240 2,446,329 1,757,202 0.1688
2023-11-14 2023-09-30 13F AMPHENOL CORP COMMON 032095101 15,279,911 653,354 4.47 1,283,360 3.29 0.1416
2023-08-11 2023-06-30 13F Amphenol Corp Cl A COM 032095101 14,626,557 -279,754 -1.88 1,242,526 2.00 0.1350
2023-05-18 2023-03-31 13F/A-1 AMPHENOL CORP COMMON 032095101 14,906,311 756,463 5.35 1,218,144 113,005.20 0.1484
2023-05-11 2023-03-31 13F AMPHENOL CORP COMMON 032095101 14,626,453 476,605 1,218,144 0.0181
2023-02-13 2022-12-31 13F AMPHENOL CORP COMMON 032095101 14,149,848 795,078 5.95 1,077 -99.88 0.1420
2022-11-14 2022-09-30 13F AMPHENOL CORP COMMON 032095101 13,354,770 981,502 7.93 894,236 12.26 0.1284
2022-08-11 2022-06-30 13F AMPHENOL CORP COMMON 032095101 12,373,268 -111,526 -0.89 796,592 -15.32 0.1110
2022-05-11 2022-03-31 13F AMPHENOL CORP COMMON 032095101 12,484,794 -290,122 -2.27 940,728 -15.80 0.1133
2022-02-11 2021-12-31 13F/A-1 AMPHENOL CORP COMMON 032095101 12,774,916 -1,612,765 -11.21 1,117,293 6.04 0.1290
2022-02-10 2021-12-31 13F AMPHENOL CORP COMMON 032095101 12,774,916 -1,612,765 1,117,293 0.0190
2021-11-12 2021-09-30 13F AMPHENOL CORP COMMON 032095101 14,387,681 -2,463,023 -14.62 1,053,610 -8.60 0.1303
2021-08-12 2021-06-30 13F AMPHENOL CORP COMMON 032095101 16,850,704 2,549,182 17.82 1,152,758 22.18 0.1375
2021-05-12 2021-03-31 13F AMPHENOL CORP COMMON 032095101 14,301,522 5,920,513 70.64 943,471 -13.92 0.1259
2021-02-19 2020-12-31 13F/A-1 AMPHENOL CORP COMMON 032095101 8,381,009 670,488 8.70 1,095,985 30.85 0.1610
2021-02-11 2020-12-31 13F AMPHENOL CORP COMMON 032095101 8,381,009 670,488 1,095,985 27,104.4901
2020-11-12 2020-09-30 13F/A-1 AMPHENOL CORP COMMON 032095101 7,710,521 505,900 7.02 837,594 21.34 0.1408
2020-11-12 2020-09-30 13F AMPHENOL CORP COMMON 032095101 7,710,521 837,594
2020-08-11 2020-06-30 13F AMPHENOL CORP COMMON 032095101 7,204,621 -820,702 -10.23 690,276 18.02 0.1332
2020-05-12 2020-03-31 13F AMPHENOL CORP COMMON 032095101 8,025,323 32,900 0.41 584,885 -32.38 0.1373
2020-02-11 2019-12-31 13F AMPHENOL CORP COMMON 032095101 7,992,423 -47,309 -0.59 865,018 11.50 0.1613
2019-11-12 2019-09-30 13F AMPHENOL CORP COMMON 032095101 8,039,732 1,272,313 18.80 775,833 19.86 0.1545
2019-08-07 2019-06-30 13F AMPHENOL CORP COMMON 032095101 6,767,419 277,084 4.27 647,305 5.61 0.1266
2019-05-07 2019-03-31 13F AMPHENOL CORP COMMON 032095101 6,490,335 -67,713 -1.03 612,947 15.36 0.1252
2019-02-11 2018-12-31 13F AMPHENOL CORP COMMON 032095101 6,558,048 -1,028,540 -13.56 531,333 -25.51 0.1229
2018-11-13 2018-09-30 13F/A-1 AMPHENOL CORP COMMON 032095101 7,586,588 415,589 5.80 713,292 14.14 0.1366
2018-11-07 2018-09-30 13F AMPHENOL CORP COMMON 032095101 7,586,588 415,589 713,292
2018-08-14 2018-06-30 13F AMPHENOL CORP COMMON 032095101 7,170,999 -375,902 -4.98 624,953 -3.86 0.1285
2018-05-10 2018-03-31 13F AMPHENOL CORP COMMON 032095101 7,546,901 198,094 2.70 650,013 0.74 0.1393
2018-02-13 2017-12-31 13F AMPHENOL CORP COMMON 032095101 7,348,807 -1,285,685 -14.89 645,226 -9.18 0.1359
2017-11-09 2017-09-30 13F AMPHENOL CORP COMMON 032095101 8,634,492 173,637 2.05 710,446 13.75 0.1567
2017-08-09 2017-06-30 13F AMPHENOL CORP COMMON 032095101 8,460,855 16,589 0.20 624,579 3.93 0.1427
2017-05-10 2017-03-31 13F AMPHENOL CORP COMMON 032095101 8,444,266 -729,024 -7.95 600,978 -2.54 0.1373
2017-02-06 2016-12-31 13F AMPHENOL CORP COMMON 032095101 9,173,290 -271,804 -2.88 616,667 0.54 0.1482
2016-11-04 2016-09-30 13F AMPHENOL CORP COMMON 032095101 9,445,094 283,421 3.09 613,364 16.78 0.1510
2016-08-08 2016-06-30 13F AMPHENOL CORP COMMON 032095101 9,161,673 -766,742 -7.72 525,239 -8.50 0.1310
2016-05-10 2016-03-31 13F AMPHENOL CORP COMMON 032095101 9,928,415 -2,321,120 -18.95 574,060 -10.27 0.1469
2016-02-12 2015-12-31 13F AMPHENOL CORP COMMON 032095101 12,249,535 -443,367 -3.49 639,795 -1.09 0.1606
2015-11-13 2015-09-30 13F AMPHENOL CORP COMMON 032095101 12,692,902 -843,797 -6.23 646,830 -17.57 0.1729
2015-08-14 2015-06-30 13F AMPHENOL CORP-CL A COMMON 032095101 13,536,699 446,651 3.41 784,723 1.73 0.1850
2015-05-15 2015-03-31 13F AMPHENOL CORP-CL A COMMON 032095101 13,090,048 -103,633 -0.79 771,397 8.65 0.1757
2015-02-13 2014-12-31 13F AMPHENOL CORP-CL A COMMON 032095101 13,193,681 5,707,712 76.25 709,951 -5.03 0.1623
2014-12-08 2014-09-30 13F/A-1 AMPHENOL COMMON 032095101 7,485,969 -238,193 -3.08 747,550 0.46 0.1772
2014-11-14 2014-09-30 13F AMPHENOL COMMON 032095101 7,485,969 747,550
2014-09-03 2014-06-30 13F/A-1 AMPHENOL COMMON 032095101 7,724,162 96,787 1.27 744,147 6.45 0.1890
2014-08-14 2014-06-30 13F AMPHENOL COMMON 032095101 7,724,162 744,147
2014-05-15 2014-03-31 13F AMPHENOL COMMON 032095101 7,627,375 62,678 0.83 699,050 3.62 0.1929
2014-02-26 2013-12-31 13F/A-1 AMPHENOL COMMON 032095101 7,564,697 30,415 0.40 674,619 15.71 0.1914
2014-02-13 2013-12-31 13F AMPHENOL COMMON 032095101 7,564,697 674,619
2013-10-31 2013-09-30 13F AMPHENOL COMMON 032095101 7,534,282 1,694,029 29.01 583,003 28.08 0.1728
2013-08-13 2013-06-30 13F AMPHENOL COMMON 032095101 5,840,253 5,840,253 455,189 0.1451
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-13 2026-03-31 13F/A AMPHENOL OPTION Call 65,000 7,745 n/a n/a n/a
2026-02-11 2025-12-31 13F AMPHENOL CORP OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-26 2025-09-30 13F/A AMPHENOL CORP OPTION Call 3,500 433 n/a n/a n/a
2025-11-07 2025-09-30 13F AMPHENOL CORP OPTION Call 3,500 433 n/a n/a n/a
2025-05-12 2025-03-31 13F AMPHENOL CORP OPTION Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-12 2024-12-31 13F AMPHENOL CORP OPTION Call 2,800 0.00 194 6.59 n/a n/a n/a
2024-12-26 2024-09-30 13F/A AMPHENOL CORP OPTION Call 2,800 182 n/a n/a n/a
2024-11-08 2024-09-30 13F AMPHENOL CORP OPTION Call 2,800 182 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-13 2026-03-31 13F/A AMPHENOL OPTION Put 116,000 13,821 n/a n/a n/a
2025-02-12 2024-12-31 13F AMPHENOL CORP OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-12-26 2024-09-30 13F/A AMPHENOL CORP OPTION Put 44,400 2,893 n/a n/a n/a
2024-11-08 2024-09-30 13F AMPHENOL CORP OPTION Put 44,400 2,893 n/a n/a n/a
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.