Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionRehmann Capital Advisory Group
Latest Disclosed Ownership3,838 shares
Latest Disclosed Value $ 484,986
Rehmann Capital Advisory Group reports 15.76% decrease in ownership of APH / Amphenol Corporation

On May 15, 2026 - Rehmann Capital Advisory Group filed a 13F-HR form disclosing ownership of 3,838 shares of Amphenol Corporation (US:APH) valued at $484,931 USD as of March 31, 2026. The entity filed a previous 13F-HR on March 4, 2026 disclosing 4,556 shares of Amphenol Corporation. This represents a change in shares of -15.76% during the quarter. The current value of the position is $532,753 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.

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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)
2026-05-15 2026-03-31 13F AMPHENOL CL A 032095101 3,838 -718 -15.76 485 -21.30 0.0253
2026-03-04 2025-12-31 13F AMPHENOL CORP CL A 032095101 4,556 -74 -1.60 616 7.52 0.0321
2025-11-13 2025-09-30 13F AMPHENOL CORP CL A 032095101 4,630 -167 -3.48 573 20.93 0.0314
2025-07-30 2025-06-30 13F AMPHENOL CORP CL A 032095101 4,797 819 20.59 474 81.92 0.0287
2025-04-30 2025-03-31 13F AMPHENOL CORP CL A 032095101 3,978 -99 -2.43 261 -8.13 0.0164
2025-02-14 2024-12-31 13F AMPHENOL CORP CL A 032095101 4,077 -134 -3.18 283 1.43 0.0179
2024-11-18 2024-09-30 13F AMPHENOL CORP CL A 032095101 4,211 88 2.13 279 0.72 0.0183
2024-08-12 2024-06-30 13F AMPHENOL CORP CL A 032095101 4,123 4,123 278 0.0199
2020-11-20 2020-03-31 13F/A-1 AMPHENOL CORP CL A 032095101 0 -1,959 -100.00 0 -100.00
2020-01-02 2019-09-30 13F AMPHENOL CORP CL A 032095101 1,959 1 0.05 189 1.07 0.0229
2019-08-27 2019-06-30 13F AMPHENOL CORP CL A 032095101 1,958 75 3.98 188 5.65 0.0231
2019-05-22 2019-03-31 13F AMPHENOL CORP CL A 032095101 1,883 125 7.11 178 24.65 0.0241
2019-02-12 2018-12-31 13F AMPHENOL CORP CL A 032095101 1,758 347 24.59 142 7.58 0.0214
2018-12-07 2018-09-30 13F/A-1 AMPHENOLCORPNEW CLA 032095101 1,411 4 0.28 133 8.20 0.0183
2018-09-20 2018-06-30 13F AMPHENOL CORP CL A 032095101 1,407 103 7.90 123 8.93 0.0178
2018-04-24 2018-03-31 13F AMPHENOL CORP CL A 032095101 1,304 1,304 112 0.0174
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.