SIMO on Nasdaq

Silicon Motion

Logo: Silicon Motion, Public domain, via Wikimedia Commons4

American-Taiwanese electronics company

Silicon Motion Technology Corporation (SMI), stylized as SiliconMotion, is an American-Taiwanese company involved in developing NAND flash controller integrated circuits (ICs) for solid-state storage devices. The company has claimed to have supplied more NAND flash controllers than any other company, over five billion from 2006 through 2016.3 From Wikipedia, CC BY-SA 4.0

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Last updated Oct 19, 2026.

Overview

$885.6MRevenue, fiscal 20255
$122.6MNet income, fiscal 20255
1995Founded1

Compare with Allegro MicroSystems, Astera Labs or Photronics Inc, or pick any stock.

  • TickerSIMO on Nasdaq1
  • IndustrySemiconductors & Related Devices1
  • HeadquartersTaiwan1
  • Websitewww.siliconmotion.com
  • Legal formpublic company1
  • Incorporated inCayman Islands6
  • Business addressFlat C, 19/F, Wing Cheong Commercial Bld, Nos 19-25 Jervois Street, Hong Kong Island, K3 0006
  • Filer categoryLarge accelerated filer6

Silicon Motion Technology Corporation (SMI), stylized as SiliconMotion, is an American-Taiwanese company involved in developing NAND flash controller integrated circuits (ICs) for solid-state storage devices. The company has claimed to have supplied more NAND flash controllers than any other company, over five billion from 2006 through 2016. They are found in commercial, enterprise, and industrial applications ranging from SSDs, eMMCs, memory cards, and USB flash drives.3

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2025

48.3%Gross margin5
10.5%Operating margin5
13.8%Net margin5
10.2%Revenue growth, 20255
14.8%Return on equity5
$6.3MFree cash flow5

What sells

Revenue by product, business segment and region, as the company reports it to the SEC.

Products and services

Mobile Storage brought in 99% of the revenue Silicon Motion broke down this way in fiscal 2025.

  1. Mobile Storage$877.2M599%up 10% from 2024
  2. Other Products$8.4M51%up 17% from 2024
Products and services by year
Products and services202320242025
Mobile Storage$632.8M$796.4M$877.2M
Other Products$6.3M$7.2M$8.4M

Regions

China brought in 56% of the revenue Silicon Motion broke down this way in fiscal 2025.

  1. China$495.1M556%up 49% from 2024
  2. Japan$123.9M514%down 13% from 2024
  3. Other Countries$83.1M59%up 108% from 2024
  4. SGMember$78.4M59%down 46% from 2024
  5. TWMember$74.6M58%up 28% from 2024
  6. South Korea$22.6M53%down 69% from 2024
  7. United States$8.0M51%down 39% from 2024
Regions by year
Regions202320242025
China$229.0M$331.7M$495.1M
Japan$36.4M$143.1M$123.9M
Other Countries$67.6M$40.0M$83.1M
SGMember$127.6M$144.6M$78.4M
TWMember$74.3M$58.1M$74.6M
South Korea$48.6M$73.1M$22.6M
United States$55.5M$13.0M$8.0M

Where the money goes

Where each dollar of revenue went, fiscal 2025

  • Cost of revenue52¢$458.1M
  • Research and development30¢$262.7M
  • Other costs3¢$24.7M
  • Income tax2¢$17.5M
  • Profit14¢$122.6M

Out of $885.6M in revenue.5

Where each dollar of operating cash went, fiscal 2025

  • Capital spending38¢$55.1M
  • Dividends paid46¢$67.2M
  • Share buybacks17¢$24.3M

Out of $61.4M of cash from operations. Spending exceeded cash from operations; the rest came from savings or borrowing.5

Financial statements

Revenue891011125$885.6M in 2025+67% since 2018
0$250.0M$500.0M$750.0M$1.0B2018: $530.3M$530.3M20182019: $457.3M$457.3M2019−14%2020: $539.5M$539.5M2020+18%2021: $922.1M$922.1M2021+71%2022: $945.9M$945.9M2022+3%2023: $639.1M$639.1M2023−32%2024: $803.6M$803.6M2024+26%2025: $885.6M$885.6M2025+10%
Gross profit891011125$427.5M in 2025+64% since 2018
0$200.0M$400.0M$600.0M2018: $260.8M$260.8M20182019: $222.2M$222.2M2019−15%2020: $260.2M$260.2M2020+17%2021: $460.8M$460.8M2021+77%2022: $465.8M$465.8M2022+1%2023: $270.4M$270.4M2023−42%2024: $368.8M$368.8M2024+36%2025: $427.5M$427.5M2025+16%
Operating income891011125$93.0M in 2025−11% since 2018
0$100.0M$200.0M$300.0M2018: $104.8M$104.8M20182019: $52.1M$52.1M2019−50%2020: $80.5M$80.5M2020+54%2021: $245.9M$245.9M2021+206%2022: $213.9M$213.9M2022−13%2023: $39.9M$39.9M2023−81%2024: $90.9M$90.9M2024+128%2025: $93.0M$93.0M2025+2%
Net income891011125$122.6M in 2025+25% since 2018
0$100.0M$200.0M$300.0M2018: $98.1M$98.1M20182019: $64.4M$64.4M2019−34%2020: $79.7M$79.7M2020+24%2021: $200.0M$200.0M2021+151%2022: $172.5M$172.5M2022−14%2023: $52.9M$52.9M2023−69%2024: $89.2M$89.2M2024+69%2025: $122.6M$122.6M2025+37%

Every line of the income statement as filed: the last 3 fiscal years, latest first.5

Period ending2025-12-312024-12-312023-12-31
NET SALES$885.6M$803.6M$639.1M
COST OF SALES$458.1M$434.8M$368.8M
GROSS PROFIT$427.5M$368.8M$270.4M
Research and development$262.7M$217.8M$174.4M
Sales and marketing$34.4M$27.4M$26.9M
General and administrative$37.4M$31.4M$27.9M
Loss from settlement of litigation$0$1.2M$1.3M
Total operating expenses$334.5M$277.9M$230.5M
OPERATING INCOME$93.0M$90.9M$39.9M
Unrealized holding gain on investment$18.4M$543.0K$8.0M
Gain from disposal of long-term investment$21.1M$58.0K$0
Interest income$9.7M$14.5M$12.2M
Foreign exchange gain (loss), net-$2.1M$1.4M$914.0K
Other income$18.0K$0$8.0K
Total non-operating income (expenses)$47.1M$16.5M$21.2M
INCOME BEFORE INCOME TAX$140.1M$107.4M$61.0M
INCOME TAX EXPENSE$17.5M$18.2M$8.2M
NET INCOME$122.6M$89.2M$52.9M
Basic$0.91$0.66$0.40
Diluted$0.91$0.66$0.40
Basic (Thousands)134.3M shares134.6M shares133.4M shares
Diluted (Thousands)134.7M shares134.9M shares133.9M shares
Basic$3.65$2.65$1.59
Diluted$3.64$2.65$1.58
Basic (Thousands)33.6M shares33.6M shares33.4M shares
Diluted (Thousands)33.7M shares33.7M shares33.5M shares

Compare Silicon Motion with another company

The story

Silicon Motion Technology Corporation was formed as the combination of Silicon Motion, Inc., which was established in 1995 in Silicon Valley in the United States, and Feiya Technology Corporation, which was founded in 1997 in Taipei, Taiwan. At the time, mobile graphic chips were the main product of Silicon Motion and NAND controllers were the main products of Feiya Technology Corporation. In 2002, Concord Asia Capital (now known as Concord Venture Capital Group), mediated the merger of the two companies which was completed in August 2002. In 2005, the combined company was renamed Silicon Motion Technology Corporation and began listing on the NASDAQ stock market under the SIMO ticker symbol.

November 1995: Silicon Motion was established in Silicon Valley, U.S.A.

April 1997: Feiya Technology Corporation was established in Taipei, Taiwan.

August 2002: Silicon Motion, Inc. was combined with Feiya Technology Corporation in Taiwan. The headquarters was located in Hsinchu County, Taiwan.

June 2003: Silicon Motion was added to the stock listings of the Taiwan Stock Exchange (TWSE).

March 2005: The company decided to go public in the US. Silicon Motion Technology Corporation was established in the Cayman Islands, and transferred 100% of its stocks to its branch in Taiwan. The company terminated its application for an emerging stock transaction and withdrew the issuance of its stocks.

April 2005: The company’s listing on the TWSE was terminated.

June 2005: The company was listed on the NASDAQ stock market (Nasdaq: SIMO).

Read the full text

April 2007: The company completed its acquisition of Future Communications IC, Inc. (FCI) for US$90 million.

December 2012: The company received "2012 Best Financially Managed Company (<$500 million revenue) Award" presented by the Global Semiconductor Alliance (GSA).

July 2015: The company completed its acquisition of Shannon Systems for US$57.5 million.

December 2016: The company received "2016 Best Financially Managed Company (<$1 billion revenue) Award" presented by the Global Semiconductor Alliance (GSA).

May 2019: The company announced that it has completed the sale of FCI, its Mobile Communications product line, to Dialog Semiconductor.

May 2022: MaxLinear to acquire Silicon Motion.

July 2023: MaxLinear scrapped the acquisition stating that Silicon Motion had failed to complete some of the acquisition closing conditions and suffered a "material adverse effect".

From Wikipedia’s article on Silicon Motion, shared under CC BY-SA 4.0.7

Leadership

Who has led Silicon Motion, and when. Pick a name to see everywhere that person has worked.

Chief financial officer

  1. Po Hung Tsai2026–now
200020052010201520202025
Board members and other officers (12)

Products and brands

Embedded storage products

SSD controllers

eMMC controllers

Ferroelectric storage

Read the full text

Embedded flash controllers

Enterprise/data center SSDs marketed under the Shannon brand

Expandable storage products

Memory card controllers

USB flash drive controllers

Embedded graphics products

Embedded GPUs

USB display controllers

From Wikipedia’s article on Silicon Motion, shared under CC BY-SA 4.0.7

Timeline

  1. Apr 9, 2026New chief executive Wallace Chiachang Kou becomes CEO14
  2. 1995Founded Founded1

Filings

161 filings to the SEC since October 2021: 5 annual reports, 16 insider forms, 7 large holders, 133 other. The latest 20:

  1. Oct 8, 20266-K EDGAR
  2. Sep 22, 20266-K EDGAR
  3. Aug 14, 20266-K EDGAR
  4. Aug 11, 20266-K EDGAR
  5. Aug 10, 20266-K EDGAR
  6. Aug 6, 2026SCHEDULE 13G/A EDGAR
  7. Jul 30, 20266-K EDGAR
  8. Jul 24, 20266-K EDGAR
  9. Jul 8, 20266-K EDGAR
  10. Jun 24, 20264 EDGAR
  11. Jun 24, 20264 EDGAR
  12. Jun 4, 2026144 EDGAR
  13. May 29, 2026SD EDGAR
  14. May 27, 2026144 EDGAR
  15. May 27, 2026144 EDGAR
  16. May 18, 2026144 EDGAR
  17. May 7, 20264 EDGAR
  18. May 1, 2026144 EDGAR
  19. Apr 30, 202620-F EDGAR
  20. Apr 29, 20266-K EDGAR

The 161 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Insider trades

5 open-market trades by officers, directors and large owners since October 2021: 0 buys and 5 sales. Grants, option exercises and gifts are left out.

DateWhoTradeSharesPriceValueFiling
Jun 18, 2026SHIEH HAN-PINGDirectorSale1,000$328.00$328.0KForm 4
Jun 18, 2026LIN KUAN-MINGDirectorSale1,000$320.31$320.3KForm 4
Jun 17, 2026LIN KUAN-MINGDirectorSale2,000$305.00$610.0KForm 4
Jun 2, 2026SHIEH HAN-PINGDirectorSale1,000$301.25$301.2KForm 4
May 6, 2026DUANN SHII TYNGDirectorSale1,500$245.00$367.5KForm 4

From Forms 4 filed with the SEC.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

Held by these funds

The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 100. Change is in shares since the quarter before.

FundSharesValueShare of the fundChange
Fmr LLC2,277,824$759.3M0.0%−1,120,543
Invesco Ltd.1,142,437$380.8M0.0%+724,152
Alkeon Capital Management LLC1,100,000$366.7M1.4%New
Hawk Ridge Capital Management LP1,015,215$338.4M11.1%−158,100
Reinhart Partners, Llc.966,060$322.0M7.4%−347,979
Polar Capital Holdings Plc931,375$310.5M0.9%New
Driehaus Capital Management LLC786,074$262.0M1.5%+276,099
Two Sigma Investments, LP701,105$233.7M0.2%+426,528
Wolf Hill Capital Management, LP548,791$182.9M17.7%−32,061
Bahl & Gaynor LLC453,307$151.1M0.7%+297,742
Granahan Investment Management, LLC445,752$148.6M5.3%+250,500
Lazard Asset Management LLC435,931$145.3M0.2%−346,050
Arrowstreet Capital, Limited Partnership417,894$139.3M0.1%−7,803
D. E. Shaw & Co., Inc.363,105$121.0M0.1%New
Analog Century Management LP362,502$120.8M4.4%−176,246
Systematic Financial Management LP354,216$118.1M2.4%−152,509
BIT Capital GmbH349,195$116.4M4.0%New
Oberweis Asset Management Inc/316,350$105.4M2.2%+33,800
Robeco Institutional Asset Management B.V.299,699$99.9M0.1%−331,882
Marshall Wace, Llp291,836$97.3M0.1%+15,236
Morgan Stanley291,727$97.2M0.0%+80,753
Bank Of America Corp /de/276,785$92.3M0.0%+32,398
Voya Investment Management LLC275,122$91.7M0.1%−106,732
Schwartz Investment Counsel Inc270,000$90.0M3.0%−30,000
Summit Partners Public Asset Management, LLC261,815$87.3M2.3%−194,560

13F reports cover disclosed long positions in U.S. stocks only.