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SIMONasdaqSemiconductors & Related DevicesFiscal year ends December 31

Silicon Motion Technology CORP

Financials through fiscal 2025, year ended Dec 31, 2025Last filing: 20-F on Apr 30, 2026
$217.24+5.94 (+2.81%)

Close on Oct 19, 2026

Market cap
–
P/E (TTM)
238.7
Dividend yield
0.23%

Ownership

Institutional holdings as of Jun 30, 2026, from 13F filings

Held by institutions
18.6%
25M of 134M shares
Institutional holders
385
149 new, 36 sold out
Net institutional buying
-2M
In Q2 2026
Insider trades, 12 months
0 buys · 6 sales
Net sold $1.93M

Shares held by institutions

Holders of more than 5%

Latest Schedule 13D (active) or 13G (passive) filed by each holder

HolderShares% of classFilingAs of
FMR LLC9,111,2966.70%13G (passive) amendmentJun 30, 2026

Top institutional holders

13F holdings as of Jun 30, 2026

HolderShares% of SIMOValueChange% of portfolio
FMR LLC2,277,8241.70%$759.27M−1,120,5430.03%
Acadian Asset Management LLC1,315,8380.98%$438.53K+22,1280.52%
Invesco Ltd.1,142,4370.85%$380.81M+724,1520.03%
Alkeon Capital Management LLC1,100,0000.82%$366.66MNew0.50%
Hawk Ridge Capital Management LP1,015,2150.76%$338.40M−158,10010.85%
Reinhart Partners, LLC.966,0600.72%$322.02M−347,9797.35%
Polar Capital Holdings Plc931,3750.69%$310.46MNew0.73%
Driehaus Capital Management LLC786,0740.59%$262.02M+276,0991.52%
Two Sigma Investments, LP701,1050.52%$233.70M+426,5280.17%
Wolf Hill Capital Management, LP548,7910.41%$182.93M−32,06115.30%
Bahl & Gaynor Inc453,3070.34%$151.10M+297,7420.70%
Granahan Investment Management, LLC445,7520.33%$148.58M+250,5005.29%
Lazard Asset Management LLC435,9310.32%$145.31M−346,0500.22%
Arrowstreet Capital, Limited Partnership417,8940.31%$139.30M−7,8030.06%
Lord, Abbett & Co. LLC377,8990.28%$125.97K−584,2400.36%
D. E. Shaw & Co., Inc.363,1050.27%$121.03MNew0.06%
Analog Century Management LP362,5020.27%$120.83M−176,2464.42%
Systematic Financial Management LP354,2160.26%$118.07M−152,5092.35%
BIT Capital GmbH349,1950.26%$116.40MNew3.45%
Oberweis Asset Management Inc/316,3500.24%$105.45M+33,8002.18%

Institutional buying and selling by quarter

Positions opened, added to, reduced and closed by 13F filers

QuarterHoldersShares held% of sharesNew / addedReduced / closedShares boughtShares sold
Q2 202638525M18.6%149 / 78132 / 367M9M
Q1 202627427M20.2%63 / 9589 / 255M5M
Q4 202524027M20.4%42 / 8381 / 204M4M
Q3 202521927M20.4%39 / 6979 / 313M4M
Q2 202521228M21.2%55 / 6073 / 296M5M
Q1 202519028M20.6%27 / 7957 / 385M5M
Q4 202420227M20.3%31 / 7176 / 315M5M
Q3 202420228M20.6%18 / 8077 / 485M6M
Q2 202423428M21.1%47 / 9266 / 216M6M
Q1 202421128M20.8%43 / 7571 / 348M9M
Q4 202320429M21.3%48 / 7955 / 3510M8M
Q3 202319326M19.5%48 / 6465 / 5513M10M

Top mutual fund and ETF holders

Latest monthly portfolio reports (Form N-PORT)

FundShares% of SIMOValue% of fundAs of
Invesco Small Cap Value Fund604,2710.45%$153.24M1.38%Jul 31, 2026
Select Semiconductors Portfolio449,9230.34%$124.57M0.24%May 31, 2026
VIP Mid Cap Portfolio406,8180.30%$135.60M1.42%Jun 30, 2026
Oberweis Micro-Cap Fund304,8000.23%$101.60M6.29%Jun 30, 2026
Bahl & Gaynor Small/Mid Cap Income Growth ETF291,0140.22%$97.00M6.66%Jun 30, 2026
Ave Maria Growth Fund270,0000.20%$90.00M7.11%Jun 30, 2026
Fidelity Advisor Semiconductors Fund240,7300.18%$61.05M0.85%Jul 31, 2026
Voya Small Cap Growth Fund205,2790.15%$56.84M2.69%May 31, 2026
MFS International New Discovery Fund190,9410.14%$63.65M0.83%Jun 30, 2026
Fidelity Small Cap Growth Fund176,3380.13%$44.72M0.51%Jul 31, 2026
Reinhart Genesis PMV Fund174,0000.13%$48.18M6.75%May 31, 2026
Strategic Advisers Fidelity U.S. Total Stock Fund145,1800.11%$40.20M0.02%May 31, 2026
Fidelity Stock Selector Small Cap Fund139,6000.10%$35.40M0.48%Jul 31, 2026
Lord Abbett Mid Cap Stock Fund Inc135,7600.10%$45.25M3.78%Jun 30, 2026
Bridge Builder Small/Mid Cap Growth Fund134,2180.10%$44.74M0.40%Jun 30, 2026

Officers, directors and major owners

People who filed Forms 3, 4 or 5 in the last two years

NameRoleShares owned% of sharesLatest filing
Wallace Chiachang KouPresident and CEO, Director486,2140.36%Apr 9, 2026
Yueh-Hua LinVice President of Finance23,7000.02%Apr 9, 2026
Tao ChengVP of Manufacturing Operations6,0000.00%Apr 9, 2026
Shang-Tzu JuSVP of Platform and Strategy2,5000.00%Apr 9, 2026
Po Hung TsaiCFO48,2500.04%Apr 9, 2026
Han-Ping ShiehDirector6,6560.00%Jun 24, 2026
Kuan-Ming LinDirector7,5000.01%Jun 24, 2026
Shii Tyng DuannDirector15,2000.01%May 7, 2026
Tsungtan Cain LinDirector5,0000.00%Apr 9, 2026
Pongchi James ChowDirector415,9170.31%Mar 27, 2026
Shiang Feng ChenDirector27,8000.02%Mar 27, 2026
Tsung-Ming ChungDirector7,5000.01%Mar 27, 2026
Lien Chun LiuDirector73,8700.06%Mar 27, 2026

Insider trades

Common stock transactions reported on Form 4, newest first

InsiderDateTransactionSharesPriceValueShares after
Kuan-Ming Lin
Director
Jun 18, 2026Sale−1,000$320.31$320.31K7,500
Han-Ping Shieh
Director
Jun 18, 2026Sale−1,000$328.00$328.00K6,656
Kuan-Ming Lin
Director
Jun 17, 2026Sale−1,000$300.00$300.00K9,500
Kuan-Ming Lin
Director
Jun 17, 2026Sale−1,000$310.01$310.01K8,500
Han-Ping Shieh
Director
Jun 2, 2026Sale−1,000$301.25$301.25K7,656
Shii Tyng Duann
Director
May 6, 2026Sale−1,500$245.00$367.50K15,200

Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.

Planned insider sales

Notices of proposed sale filed on Form 144 before shares are sold

SellerFiledSharesMarket valuePlanned saleAcquired through
Kuan-Ming Lin
Affiliate
Jun 4, 202610,500$3.22MJun 5, 2026Restricted Stock Award
Han-Ping Shieh
Affiliate
May 27, 20262,000$552.28KMay 28, 2026Restricted Stock Award
Robert C. Fan
Officer
May 27, 2026500$136.23KMay 27, 2026Purchased
Robert C. Fan
Officer
May 18, 20261,100$225.69KMay 18, 2026Purchased
Shii Tyng Duann
Affiliate
May 1, 20261,500$328.50KMay 4, 2026Restricted Stock Award
Robert Fan
Officer
Feb 24, 20262,000$270.80KFeb 24, 2026Stock Award
Robert Fan
Officer
Dec 9, 20253,000$271.35KDec 9, 2025Stock Award
Shii Tyng Duann
Affiliate
Nov 10, 20251,000$95.00KNov 11, 2025Restricted Stock Award
Kuan-Ming Lin
Affiliate
Sep 16, 202512,500$1.13MSep 17, 2025Restricted Stock Award
Han-Ping Shieh
Affiliate
Sep 9, 20256,000$509.10KSep 3, 2025Restricted Stock Award
Han-Ping Shieh
Affiliate
Aug 12, 20256,000$458.28KAug 12, 2025Restricted Stock Award
Han-Ping Shieh
Affiliate
Jun 25, 20252,000$144.00KJun 20, 2025Restricted Stock Award
Shii Tyng Duann
Affiliate
May 12, 20254,000$214.16KMay 13, 2025Restricted Stock Award
Robert Fan
Officer
Dec 18, 20241,000$60.32KDec 18, 2024Open market
Shii Tyng Duann
Affiliate
Dec 3, 20243,000$162.00KDec 4, 2024Restricted Stock Award