Semtech Corporation
MX ˙ BMV ˙ US8168501018
SecurityMX:SMTC / Semtech Corporation
InstitutionXTX Topco Ltd
Latest Disclosed Ownership35,633 shares
Latest Disclosed Value $ 2,739,821
XTX Topco Ltd reports 364.39% increase in ownership of SMTC / Semtech Corporation

On May 15, 2026 - XTX Topco Ltd filed a 13F-HR form disclosing ownership of 35,633 shares of Semtech Corporation (MX:SMTC) valued at $2,739,821 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 7,673 shares of Semtech Corporation. This represents a change in shares of 364.39% 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)
2026-05-15 2026-03-31 13F SEMTECH COM 816850101 35,633 27,960 364.39 2,740 384.78 0.0476
2026-02-17 2025-12-31 13F SEMTECH COM 816850101 7,673 7,673 565 0.0148
2025-08-12 2025-06-30 13F SEMTECH COM 816850101 0 -14,420 -100.00 0 -100.00
2025-05-08 2025-03-31 13F SEMTECH COM 816850101 14,420 6,375 79.24 496 -0.20 0.0254
2025-02-13 2024-12-31 13F SEMTECH COM 816850101 8,045 8,045 498 0.0409
2024-11-14 2024-09-30 13F SEMTECH COM 816850101 0 -37,153 -100.00 0 -100.00
2024-08-12 2024-06-30 13F SEMTECH COM 816850101 37,153 37,153 1,110 0.0950
2024-05-13 2024-03-31 13F SEMTECH COM 816850101 0 -15,570 -100.00 0 -100.00
2024-02-13 2023-12-31 13F SEMTECH COM 816850101 15,570 5,178 49.83 341 27.72 0.0747
2023-11-13 2023-09-30 13F SEMTECH COM 816850101 10,392 -3,535 -25.38 268 -24.58 0.0457
2023-08-14 2023-06-30 13F SEMTECH COM 816850101 13,927 -1,524 -9.86 355 -4.84 0.0635
2023-05-12 2023-03-31 13F SEMTECH COM 816850101 15,451 5,788 59.90 373 34.30 0.0782
2023-02-14 2022-12-31 13F SEMTECH COM 816850101 9,663 -7,513 -43.74 277 -45.15 0.0588
2022-11-14 2022-09-30 13F SEMTECH COM 816850101 17,176 17,176 505 0.1250
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.