森泰克公司
MX ˙ BMV ˙ US8168501018
SecurityMX:SMTC / Semtech Corporation
InstitutionSei Investments Co
Latest Disclosed Ownership215,678 shares
Latest Disclosed Value $ 15,893,269
Sei Investments Co reports 16.52% increase in ownership of SMTC / Semtech Corporation

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 215,678 shares of Semtech Corporation (MX:SMTC) valued at $15,893,269 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 185,092 shares of Semtech Corporation. This represents a change in shares of 16.52% 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)
2026-02-13 2025-12-31 13F SEMTECH COM 816850101 215,678 30,586 16.52 15,893 20.18
2025-11-13 2025-09-30 13F SEMTECH COM 816850101 185,092 26,795 16.93 13,225 85.08 0.0142
2025-08-14 2025-06-30 13F SEMTECH COM 816850101 158,297 48,835 44.61 7,146 89.77 0.0083
2025-05-14 2025-03-31 13F/A-1 SEMTECH COM 816850101 109,462 -85,082 -43.73 3,766 -68.71 0.0048
2025-05-13 2025-03-31 13F SEMTECH COM 816850101 167,548 -26,996 10,238 0.0111
2025-02-11 2024-12-31 13F SEMTECH COM 816850101 194,544 36,558 23.14 12,033 66.82 0.0155
2024-11-12 2024-09-30 13F SEMTECH COM 816850101 157,986 104,298 194.27 7,214 349.69 0.0094
2024-08-13 2024-06-30 13F SEMTECH COM 816850101 53,688 -10,026 -15.74 1,604 -8.40 0.0023
2024-05-07 2024-03-31 13F SEMTECH COM 816850101 63,714 -12,847 -16.78 1,751 4.41 0.0026
2024-02-14 2023-12-31 13F SEMTECH COM 816850101 76,561 40,138 110.20 1,677 78.98 0.0027
2023-11-14 2023-09-30 13F SEMTECH COM 816850101 36,423 -60,253 -62.32 938 -61.93 0.0017
2023-08-11 2023-06-30 13F SEMTECH COM 816850101 96,676 -109,962 -53.21 2,461 -50.66 0.0043
2023-05-12 2023-03-31 13F SEMTECH COM 816850101 206,638 175,565 565.01 4,988 459.82 0.0093
2023-02-10 2022-12-31 13F SEMTECH COM 816850101 31,073 -118,327 -79.20 892 -79.72 0.0020
2022-11-14 2022-09-30 13F SEMTECH COM 816850101 149,400 6,484 4.54 4,394 -44.00 0.0098
2022-08-15 2022-06-30 13F SEMTECH COM 816850101 142,916 103,506 262.64 7,846 184.58 0.0169
2022-05-13 2022-03-31 13F SEMTECH COM 816850101 39,410 -8,527 -17.79 2,757 -35.97 0.0055
2022-02-14 2021-12-31 13F SEMTECH COM 816850101 47,937 8,750 22.33 4,306 42.35 0.0081
2021-11-12 2021-09-30 13F SEMTECH COM 816850101 39,187 3,642 10.25 3,025 23.82 0.0063
2021-08-06 2021-06-30 13F SEMTECH COM 816850101 35,545 -15,844 -30.83 2,443 -32.48 0.0054
2021-05-12 2021-03-31 13F SEMTECH COM 816850101 51,389 6,926 15.58 3,618 12.40 0.0091
2021-02-08 2020-12-31 13F SEMTECH COM 816850101 44,463 3,800 9.35 3,219 49.10 0.0083
2020-12-04 2020-09-30 13F/A-1 SEMTECH COM 816850101 40,663 -17,668 -30.29 2,159 -28.46 0.0063
2020-11-06 2020-09-30 13F SEMTECH COM 816850101 40,732 -17,599 2,163 5,208.0231
2020-08-17 2020-06-30 13F/A-1 SEMTECH COM 816850101 58,331 24,943 74.71 3,018 147.17 0.0094
2020-08-11 2020-06-30 13F SEMTECH COM 816850101 22,764 -10,624 1,174 3,184.5375
2020-05-14 2020-03-31 13F SEMTECH COM 816850101 33,388 12,890 62.88 1,221 15.30 0.0045
2020-02-06 2019-12-31 13F SEMTECH COM 816850101 20,498 1,706 9.08 1,059 18.99 0.0032
2019-11-12 2019-09-30 13F SEMTECH COM 816850101 18,792 3,920 26.36 890 29.36 0.0023
2019-08-14 2019-06-30 13F SEMTECH COM 816850101 14,872 2,537 20.57 688 12.97 0.0022
2019-05-15 2019-03-31 13F SEMTECH COM 816850101 12,335 -55,547 -81.83 609 -81.42 0.0020
2019-02-13 2018-12-31 13F SEMTECH COM 816850101 67,882 50,625 293.36 3,278 237.59 0.0117
2018-11-08 2018-09-30 13F SEMTECH COM 816850101 17,257 -34,424 -66.61 971 -60.06 0.0035
2018-08-03 2018-06-30 13F SEMTECH COM 816850101 51,681 40,691 370.25 2,431 466.67 0.0083
2018-05-11 2018-03-31 13F SEMTECH COM 816850101 10,990 2,416 28.18 429 46.42 0.0016
2018-02-08 2017-12-31 13F SEMTECH COM 816850101 8,574 -352 -3.94 293 -12.54 0.0010
2017-11-06 2017-09-30 13F SEMTECH COM 816850101 8,926 1,101 14.07 335 20.07 0.0012
2017-07-31 2017-06-30 13F SEMTECH COM 816850101 7,825 1,090 16.18 279 22.91 0.0011
2017-05-05 2017-03-31 13F SEMTECH COM 816850101 6,735 -6,351 -48.53 227 -45.04 0.0010
2017-02-02 2016-12-31 13F SEMTECH COM 816850101 13,086 -14,180 -52.01 413 -45.37 0.0020
2016-11-04 2016-09-30 13F SEMTECH COM 816850101 27,266 1,719 6.73 756 23.93 0.0038
2016-08-11 2016-06-30 13F SEMTECH COM 816850101 25,547 11,623 83.47 610 99.35 0.0037
2016-05-10 2016-03-31 13F/A-1 SEMTECH COM 816850101 13,924 7,740 125.16 306 161.54 0.0019
2016-02-03 2015-12-31 13F SEMTECH COM 816850101 6,184 -15,529 -71.52 117 -64.44 0.0007
2015-11-02 2015-09-30 13F/A-1 SEMTECH COM 816850101 21,713 -40,148 -64.90 329 -73.21 0.0030
2015-10-30 2015-09-30 13F SEMTECH COM 816850101 21,713 329
2015-08-07 2015-06-30 13F/A-1 SEMTECH COM 816850101 61,861 -12,160 -16.43 1,228 -37.70 0.0111
2015-08-04 2015-06-30 13F SEMTECH COM 816850101 61,861 -12,160 1,228 0.0111
2015-05-14 2015-03-31 13F/A-1 SEMTECH COM 816850101 74,021 9,327 14.42 1,971 10.61 0.0171
2015-05-01 2015-03-31 13F SEMLER SCIENTIFIC COM 816850101 74,021 1,971
2015-02-10 2014-12-31 13F SEMTECH COM 816850101 64,694 64,694 1,782 0.0158
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.