Silicon Motion Technology CORP (SIMO) shareholders
SIMONasdaqSemiconductors & Related DevicesFiscal year ends December 31
$179.50−4.15 (-2.26%)
Close on Nov 12, 2026Market cap $6.02BP/E 49.3Yield 1.11%
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
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| FMR LLC Joint filing with Abigail P. Johnson (9.00%) | 12,195,540 | 9.00% | 13G (passive) amendment | Sep 30, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of SIMO | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| FMR LLC | 2,277,824 | 1.70% | $759.27M | −1,120,543 | 0.03% |
| Acadian Asset Management LLC | 1,315,838 | 0.98% | $438.53M | +22,128 | 0.52% |
| Invesco Ltd. | 1,142,437 | 0.85% | $380.81M | +724,152 | 0.03% |
| Alkeon Capital Management LLC | 1,100,000 | 0.82% | $366.66M | New | 0.50% |
| Hawk Ridge Capital Management LP | 1,015,215 | 0.76% | $338.40M | −158,100 | 10.85% |
| Reinhart Partners, LLC. | 966,060 | 0.72% | $322.02M | −347,979 | 7.35% |
| Polar Capital Holdings Plc | 931,375 | 0.69% | $310.46M | New | 0.73% |
| Driehaus Capital Management LLC | 786,074 | 0.59% | $262.02M | +276,099 | 1.52% |
| Two Sigma Investments, LP | 701,105 | 0.52% | $233.70M | +426,528 | 0.17% |
| Wolf Hill Capital Management, LP | 548,791 | 0.41% | $182.93M | −32,061 | 15.30% |
| Bahl & Gaynor Inc | 453,307 | 0.34% | $151.10M | +297,742 | 0.70% |
| Granahan Investment Management, LLC | 445,752 | 0.33% | $148.58M | +250,500 | 5.29% |
| Lazard Asset Management LLC | 435,931 | 0.32% | $145.31M | −346,050 | 0.22% |
| Arrowstreet Capital, Limited Partnership | 417,894 | 0.31% | $139.30M | −7,803 | 0.06% |
| Lord, Abbett & Co. LLC | 377,899 | 0.28% | $125.97M | −584,240 | 0.36% |
| D. E. Shaw & Co., Inc. | 363,105 | 0.27% | $121.03M | New | 0.06% |
| Analog Century Management LP | 362,502 | 0.27% | $120.83M | −176,246 | 4.42% |
| Systematic Financial Management LP | 354,216 | 0.26% | $118.07M | −152,509 | 2.35% |
| BIT Capital GmbH | 349,195 | 0.26% | $116.40M | New | 3.45% |
| Oberweis Asset Management Inc/ | 316,350 | 0.24% | $105.45M | +33,800 | 2.18% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 385 | 25M | 18.6% | 149 / 78 | 132 / 36 | 7M | 9M |
| Q1 2026 | 274 | 27M | 20.2% | 63 / 95 | 89 / 25 | 5M | 5M |
| Q4 2025 | 240 | 27M | 20.4% | 42 / 83 | 81 / 20 | 4M | 4M |
| Q3 2025 | 219 | 27M | 20.4% | 39 / 69 | 79 / 31 | 3M | 4M |
| Q2 2025 | 212 | 28M | 21.2% | 55 / 60 | 73 / 29 | 6M | 5M |
| Q1 2025 | 190 | 28M | 20.6% | 27 / 79 | 57 / 38 | 5M | 5M |
| Q4 2024 | 202 | 27M | 20.3% | 31 / 71 | 76 / 31 | 5M | 5M |
| Q3 2024 | 202 | 28M | 20.6% | 18 / 80 | 77 / 48 | 5M | 6M |
| Q2 2024 | 234 | 28M | 21.1% | 47 / 92 | 66 / 21 | 6M | 6M |
| Q1 2024 | 211 | 28M | 20.8% | 43 / 75 | 71 / 34 | 8M | 9M |
| Q4 2023 | 204 | 29M | 21.3% | 48 / 79 | 55 / 35 | 10M | 8M |
| Q3 2023 | 193 | 26M | 19.5% | 48 / 64 | 65 / 55 | 13M | 10M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
168 funds held SIMO in Q2 2026, 6% of their shares through ETFs. Each fund counts once per quarter, from its quarter-end report.
| Fund | Shares | % of SIMO | Value | % of fund | As of |
|---|---|---|---|---|---|
| Invesco Small Cap Value Fund | 604,271 | 0.45% | $153.24M | 1.38% | Jul 31, 2026 |
| Select Semiconductors Portfolio | 449,923 | 0.34% | $124.57M | 0.24% | May 31, 2026 |
| VIP Mid Cap Portfolio | 406,818 | 0.30% | $135.60M | 1.42% | Jun 30, 2026 |
| Oberweis Micro-Cap Fund | 304,800 | 0.23% | $101.60M | 6.29% | Jun 30, 2026 |
| Bahl & Gaynor Small/Mid Cap Income Growth ETF | 291,014 | 0.22% | $97.00M | 6.66% | Jun 30, 2026 |
| Ave Maria Growth Fund | 270,000 | 0.20% | $90.00M | 7.11% | Jun 30, 2026 |
| Fidelity Advisor Semiconductors Fund | 240,730 | 0.18% | $61.05M | 0.85% | Jul 31, 2026 |
| Voya Small Cap Growth Fund | 205,279 | 0.15% | $56.84M | 2.69% | May 31, 2026 |
| MFS International New Discovery Fund | 190,941 | 0.14% | $63.65M | 0.83% | Jun 30, 2026 |
| Fidelity Small Cap Growth Fund | 176,338 | 0.13% | $44.72M | 0.51% | Jul 31, 2026 |
| Reinhart Genesis PMV Fund | 174,000 | 0.13% | $48.18M | 6.75% | May 31, 2026 |
| Strategic Advisers Fidelity U.S. Total Stock Fund | 145,180 | 0.11% | $40.20M | 0.02% | May 31, 2026 |
| Fidelity Stock Selector Small Cap Fund | 139,600 | 0.10% | $35.40M | 0.48% | Jul 31, 2026 |
| Lord Abbett Mid Cap Stock Fund Inc | 135,760 | 0.10% | $45.25M | 3.78% | Jun 30, 2026 |
| Bridge Builder Small/Mid Cap Growth Fund | 134,218 | 0.10% | $44.74M | 0.40% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Wallace Chiachang Kou | President and CEO, Director | 486,214 | 0.36% | Apr 9, 2026 |
| Yueh-Hua Lin | Vice President of Finance | 23,700 | 0.02% | Apr 9, 2026 |
| Tao Cheng | VP of Manufacturing Operations | 6,000 | 0.00% | Apr 9, 2026 |
| Shang-Tzu Ju | SVP of Platform and Strategy | 2,500 | 0.00% | Apr 9, 2026 |
| Po Hung Tsai | CFO | 48,250 | 0.04% | Apr 9, 2026 |
| Han-Ping Shieh | Director | 6,656 | 0.00% | Jun 24, 2026 |
| Kuan-Ming Lin | Director | 7,500 | 0.01% | Jun 24, 2026 |
| Shii Tyng Duann | Director | 15,200 | 0.01% | May 7, 2026 |
| Tsungtan Cain Lin | Director | 5,000 | 0.00% | Apr 9, 2026 |
| Pongchi James Chow | Director | 415,917 | 0.31% | Mar 27, 2026 |
| Shiang Feng Chen | Director | 27,800 | 0.02% | Mar 27, 2026 |
| Tsung-Ming Chung | Director | 7,500 | 0.01% | Mar 27, 2026 |
| Lien Chun Liu | Director | 73,870 | 0.06% | Mar 27, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Kuan-Ming Lin Director | Jun 18, 2026 | Sale | −1,000 | $320.31 | $320.31K | 7,500 |
| Han-Ping Shieh Director | Jun 18, 2026 | Sale | −1,000 | $328.00 | $328.00K | 6,656 |
| Kuan-Ming Lin Director | Jun 17, 2026 | Sale | −1,000 | $300.00 | $300.00K | 9,500 |
| Kuan-Ming Lin Director | Jun 17, 2026 | Sale | −1,000 | $310.01 | $310.01K | 8,500 |
| Han-Ping Shieh Director | Jun 2, 2026 | Sale | −1,000 | $301.25 | $301.25K | 7,656 |
| Shii Tyng Duann Director | May 6, 2026 | Sale | −1,500 | $245.00 | $367.50K | 15,200 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Short interest
Shares sold short and not yet bought back, as of Oct 30, 2026 (FINRA, reported twice a month)
Short % of shares outstanding
–
2M shares short
Days to cover
1.7
At 1M shares a day
Change since last report
+4.2%
From 2M shares
Short volume, 20 days
33.1%
Of volume reported to FINRA
Shares sold short, last 12 months
Short sale volume counts trades marked short on any given day, including market-maker hedging, so it runs far higher than the share of Silicon Motion Technology's stock actually held short. Settlement fails (shares not delivered on time) peaked at 236 shares on Sep 21, 2026 over the last 90 days.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Kuan-Ming Lin Affiliate | Jun 4, 2026 | 10,500 | $3.22M | Jun 5, 2026 | Restricted Stock Award |
| Han-Ping Shieh Affiliate | May 27, 2026 | 2,000 | $552.28K | May 28, 2026 | Restricted Stock Award |
| Fan Robert C Officer | May 27, 2026 | 500 | $136.23K | May 27, 2026 | Purchased |
| Fan Robert C Officer | May 18, 2026 | 1,100 | $225.69K | May 18, 2026 | Purchased |
| Shii Tyng Duann Affiliate | May 1, 2026 | 1,500 | $328.50K | May 4, 2026 | Restricted Stock Award |
| Fan Robert Officer | Feb 24, 2026 | 2,000 | $270.80K | Feb 24, 2026 | Stock Award |
| Fan Robert Officer | Dec 9, 2025 | 3,000 | $271.35K | Dec 9, 2025 | Stock Award |
| Shii Tyng Duann Affiliate | Nov 10, 2025 | 1,000 | $95.00K | Nov 11, 2025 | Restricted Stock Award |
| Kuan-Ming Lin Affiliate | Sep 16, 2025 | 12,500 | $1.13M | Sep 17, 2025 | Restricted Stock Award |
| Han-Ping Shieh Affiliate | Sep 9, 2025 | 6,000 | $509.10K | Sep 3, 2025 | Restricted Stock Award |
| Han-Ping Shieh Affiliate | Aug 12, 2025 | 6,000 | $458.28K | Aug 12, 2025 | Restricted Stock Award |
| Han-Ping Shieh Affiliate | Jun 25, 2025 | 2,000 | $144.00K | Jun 20, 2025 | Restricted Stock Award |
| Shii Tyng Duann Affiliate | May 12, 2025 | 4,000 | $214.16K | May 13, 2025 | Restricted Stock Award |
| Fan Robert Officer | Dec 18, 2024 | 1,000 | $60.32K | Dec 18, 2024 | Open market |
| Shii Tyng Duann Affiliate | Dec 3, 2024 | 3,000 | $162.00K | Dec 4, 2024 | Restricted Stock Award |
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