Amphenol Corporation
US ˙ NYSE ˙ US0320951017

SecurityAPH / Amphenol Corporation
InstitutionTownsquare Capital Llc
Latest Disclosed Ownership18,174 shares
Latest Disclosed Value $ 2,296,315
Townsquare Capital Llc reports 45.94% increase in ownership of APH / Amphenol Corporation

On May 13, 2026 - Townsquare Capital Llc filed a 13F-HR form disclosing ownership of 18,174 shares of Amphenol Corporation (US:APH) valued at $2,296,285 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 12,453 shares of Amphenol Corporation. This represents a change in shares of 45.94% during the quarter. The current value of the position is $2,682,846 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)
2026-05-13 2026-03-31 13F AMPHENOL CL A 032095101 18,174 5,721 45.94 2,296 36.50 0.2184
2026-02-11 2025-12-31 13F AMPHENOL CORP CL A 032095101 12,453 -10,121 -44.83 1,683 -39.78 0.3772
2026-02-11 2025-12-31 13F AMPHENOL CORP CL A 032095101 12,453 1,683
2026-02-11 2025-12-31 13F AMPHENOL CORP CL A 032095101 12,453 1,683
2026-02-11 2025-12-31 13F AMPHENOL CORP CL A 032095101 12,453 1,683
2026-02-11 2025-12-31 13F AMPHENOL CORP CL A 032095101 12,453 1,683
2026-02-11 2025-12-31 13F AMPHENOL CORP CL A 032095101 12,453 1,683
2025-11-03 2025-09-30 13F AMPHENOL CORP CL A 032095101 22,574 -2,281 -9.18 2,794 13.81 0.4226
2025-08-13 2025-06-30 13F AMPHENOL CORP CL A 032095101 24,855 -112,903 -81.96 2,454 -72.84 0.2391
2025-05-12 2025-03-31 13F AMPHENOL CORP CL A 032095101 137,758 6,688 5.10 9,036 -0.74 0.0962
2025-02-13 2024-12-31 13F AMPHENOL CORP CL A 032095101 131,070 34,160 35.25 9,103 44.16 0.1028
2024-11-13 2024-09-30 13F AMPHENOL CORP CL A 032095101 96,910 12,534 14.85 6,315 11.08 0.0756
2024-08-14 2024-06-30 13F AMPHENOL CORP CL A 032095101 84,376 34,073 67.74 5,684 -2.03 0.0775
2024-05-15 2024-03-31 13F AMPHENOL CORP CL A 032095101 50,303 -768 -1.50 5,803 14.62 0.0850
2024-02-15 2023-12-31 13F AMPHENOL CORP CL A 032095101 51,071 2,289 4.69 5,063 23.55 0.0868
2023-11-15 2023-09-30 13F AMPHENOL CORP CL A 032095101 48,782 3,947 8.80 4,097 7.59 0.0748
2023-11-13 2023-06-30 13F AMPHENOL CORP CL A 032095101 44,835 7,407 19.79 3,809 24.53 0.0694
2023-05-11 2023-03-31 13F AMPHENOL CORP CL A 032095101 37,428 -65 -0.17 3,059 7.15 0.0674
2023-02-13 2022-12-31 13F AMPHENOL CORP CL A 032095101 37,493 -1,804 -4.59 2,855 8.48 0.0707
2022-11-14 2022-09-30 13F AMPHENOL CORP CL A 032095101 39,297 499 1.29 2,631 5.37 0.0753
2022-08-08 2022-06-30 13F AMPHENOL CORP CL A 032095101 38,798 -2,090 -5.11 2,497 -18.95 0.0709
2022-04-28 2022-03-31 13F AMPHENOL CORP CL A 032095101 40,888 -4,824 -10.55 3,081 -22.94 0.0570
2022-02-11 2021-12-31 13F AMPHENOL CORP CL A 032095101 45,712 -219 -0.48 3,998 18.88 0.1003
2021-11-15 2021-09-30 13F AMPHENOL CORP CL A 032095101 45,931 467 1.03 3,363 6.73 0.0969
2021-08-16 2021-06-30 13F AMPHENOL CORP CL A 032095101 45,464 -144 -0.32 3,151 4.72 0.1019
2021-05-17 2021-03-31 13F AMPHENOL CORP CL A 032095101 45,608 17,976 65.06 3,009 -16.72 0.1170
2021-02-16 2020-12-31 13F AMPHENOL CORP CL A 032095101 27,632 669 2.48 3,613 21.69 0.1607
2020-12-01 2020-09-30 13F/A-2 AMPHENOL CORP CL A 032095101 26,963 -694 -2.51 2,969 13.67 0.1730
2020-11-16 2020-09-30 13F AMPHENOL CORP CL A 032095101 27,657 0 2,612 66,431.0382
2020-08-17 2020-06-30 13F AMPHENOL CORP CL A 032095101 27,657 -1,182 -4.10 2,612 5.92 0.1774
2020-05-18 2020-03-31 13F AMPHENOL CORP CL A 032095101 28,839 -4,427 -13.31 2,466 -31.52 0.1993
2020-05-18 2019-12-31 13F AMPHENOL CORP CL A 032095101 33,266 -328 -0.98 3,601 4.56 0.2922
2019-11-14 2019-09-30 13F AMPHENOL CORP CL A 032095101 33,594 649 1.97 3,444 17.34 0.2848
2019-08-15 2019-06-30 13F AMPHENOL CORP CL A 032095101 32,945 -24,862 -43.01 2,935 -46.24 0.2793
2019-05-15 2019-03-31 13F AMPHENOL CORP CL A 032095101 57,807 29,986 107.78 5,459 118.45 0.4211
2019-02-12 2018-12-31 13F AMPHENOL CORP CL A 032095101 27,821 27,821 2,499 0.3252
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.