SILICON MOTION TECHNOL-ADR (SIMO) Institutional Shareholders
SILICON MOTION TECHNOL-ADR (SIMO) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $3.24B in SIMO holdings during the latest filing period.
Fmr Llc is currently the largest disclosed institutional shareholder of SIMO tracked by InsiderSet, reporting ownership valued at approximately $381.60M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $861.83M, representing an estimated gain of +125.84% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 42% of the total disclosed SIMO value among the investors covered in this analysis. Major shareholders include Fmr Llc, Reinhart Partners, Llc., Hawk Ridge Capital Management Lp, and several other long-term asset managers with concentrated positions in SILICON MOTION TECHNOL-ADR (SIMO).
This page ranks the largest institutional SIMO shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
307
Total Reported Value
$3.24B
Largest Holder
Fmr Llc
Largest Position
$381.60M
Insider Transactions (90d)
4
Latest Filing Quarter
Q2 2026
New Institutional Positions
96
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Fmr Llc | 0.02% | 3,398,367 | $381,602,631 | $861,825,871 | +$480,223,240 | +125.84% | |
| Reinhart Partners, Llc. | 7.35% | 966,060 | $322,022,108 | $244,992,816 | -$77,029,292 | -23.92% | |
| Hawk Ridge Capital Management Lp | 4.79% | 1,173,315 | $131,751,541 | $297,552,684 | +$165,801,143 | +125.84% | |
| Robeco Institutional Asset Management B.V. | 0.12% | 299,699 | $99,898,666 | $76,003,666 | -$23,895,000 | -23.92% | |
| Schwartz Investment Counsel Inc | 2.99% | 270,000 | $89,999,100 | $68,472,000 | -$21,527,100 | -23.92% | |
| Lazard Asset Management Llc | 0.14% | 781,981 | $87,808,630 | $198,310,382 | +$110,501,752 | +125.84% | |
| Massachusetts Financial Services Co | 0.02% | 204,951 | $68,691,592 | $51,975,574 | -$16,716,018 | -24.33% | |
| Wolf Hill Capital Management, Lp | 9.25% | 580,852 | $65,223,871 | $147,304,067 | +$82,080,196 | +125.84% | |
| Man Group Plc | 0.13% | 560,103 | $62,893,966 | $142,042,121 | +$79,148,155 | +125.84% | |
| Analog Century Management Lp | 2.89% | 538,748 | $60,496,013 | $136,626,493 | +$76,130,480 | +125.84% | |
| Driehaus Capital Management Llc | 0.42% | 509,975 | $57,265,093 | $129,329,660 | +$72,064,567 | +125.84% | |
| Systematic Financial Management Lp | 1.30% | 506,725 | $56,900,337 | $128,505,460 | +$71,605,123 | +125.84% | |
| Summit Partners Public Asset Management, Llc | 2.43% | 456,375 | $51,246,349 | $115,736,700 | +$64,490,351 | +125.84% | |
| Kite Lake Capital Management (Uk) Llp | 51.27% | 452,574 | $50,819,534 | $114,772,766 | +$63,953,232 | +125.84% | |
| Highland Peak Capital, Llc | 21.74% | 444,515 | $49,914,589 | $112,729,004 | +$62,814,415 | +125.84% | |
| Herald Investment Management Ltd | 6.67% | 147,700 | $49,179,667 | $37,456,720 | -$11,722,947 | -23.84% | |
| Neumeier Poma Investment Counsel Llc | 3.96% | 428,188 | $48,081,231 | $108,588,477 | +$60,507,246 | +125.84% | |
| Arrowstreet Capital, Limited Partnership | 0.03% | 425,697 | $47,801,516 | $107,956,759 | +$60,155,243 | +125.84% | |
| Invesco Ltd. | 0.01% | 418,285 | $46,969,224 | $106,077,076 | +$59,107,852 | +125.84% | |
| Pertento Partners Llp | 4.92% | 412,536 | $46,323,667 | $104,619,130 | +$58,295,463 | +125.84% | |
| Millennium Management Llc | 0.03% | 395,789 | $44,443,147 | $100,372,090 | +$55,928,943 | +125.84% | |
| Ubs Group Ag | 0.01% | 391,926 | $44,009,371 | $99,392,434 | +$55,383,063 | +125.84% | |
| Voya Investment Management Llc | 0.04% | 381,854 | $42,878,386 | $96,838,174 | +$53,959,788 | +125.84% | |
| Ophir Asset Management Pty Ltd | 4.67% | 357,044 | $40,092,471 | $90,546,358 | +$50,453,887 | +125.84% | |
| Qube Research & Technologies Ltd | 0.06% | 351,522 | $39,472,405 | $89,145,979 | +$49,673,574 | +125.84% | |
| Envestnet Asset Management Inc | 0.01% | 111,780 | $37,259,636 | $28,347,408 | -$8,912,228 | -23.92% | |
| Castleknight Management Lp | 1.70% | 323,475 | $36,323,008 | $82,033,260 | +$45,710,252 | +125.84% | |
| Wellington Management Group Llp | 0.01% | 304,286 | $34,168,275 | $77,166,930 | +$42,998,655 | +125.84% | |
| Stephens Investment Management Group Llc | 0.35% | 99,098 | $33,032,336 | $25,131,253 | -$7,901,083 | -23.92% | |
| Oberweis Asset Management Inc/ | 0.94% | 282,550 | $31,727,540 | $71,654,680 | +$39,927,140 | +125.84% | |
| Marshall Wace, Llp | 0.03% | 276,600 | $31,059,415 | $70,145,760 | +$39,086,345 | +125.84% | |
| Two Sigma Investments, Lp | 0.03% | 274,577 | $30,832,251 | $69,632,727 | +$38,800,476 | +125.84% | |
| Boston Partners | 0.03% | 272,797 | $30,633,828 | $69,181,319 | +$38,547,491 | +125.83% | |
| Frontier Capital Management Co Llc | 0.31% | 272,356 | $30,582,900 | $69,069,482 | +$38,486,582 | +125.84% | |
| Walleye Trading Llc | 0.41% | 88,015 | $29,338,040 | $22,320,604 | -$7,017,436 | -23.92% | |
| Heartland Advisors Inc | 1.44% | 252,084 | $28,306,512 | $63,928,502 | +$35,621,990 | +125.84% | |
| Apis Capital Advisors, Llc | 4.32% | 249,200 | $27,982,668 | $63,197,120 | +$35,214,452 | +125.84% | |
| Bank Of America Corp | 0.00% | 244,387 | $27,442,168 | $61,976,543 | +$34,534,375 | +125.84% | |
| Morgan Stanley | 0.00% | 210,974 | $23,690,336 | $53,503,006 | +$29,812,670 | +125.84% | |
| Voloridge Investment Management, Llc | 0.09% | 210,302 | $23,614,812 | $53,332,587 | +$29,717,775 | +125.84% | |
| Aigh Capital Management Llc | 4.60% | 200,000 | $22,458,000 | $50,720,000 | +$28,262,000 | +125.84% | |
| Russell Investments Group, Ltd. | 0.02% | 203,353 | $22,313,623 | $51,570,321 | +$29,256,698 | +131.12% | |
| Knightsbridge Asset Management, Llc | 1.63% | 216,283 | $22,273,928 | $54,849,369 | +$32,575,441 | +146.25% | |
| Granahan Investment Management, Llc | 1.06% | 195,252 | $21,924,847 | $49,515,907 | +$27,591,060 | +125.84% | |
| Loomis Sayles & Co L P | 0.03% | 188,653 | $21,183,845 | $47,842,401 | +$26,658,556 | +125.84% | |
| Nomura Asset Management International Inc. | 0.03% | 175,687 | $19,728,000 | $44,554,223 | +$24,826,223 | +125.84% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.03% | 168,439 | $18,914,015 | $42,716,130 | +$23,802,115 | +125.84% |
| Fred Alger Management, Llc | 0.08% | 160,891 | $18,066,451 | $40,801,958 | +$22,735,507 | +125.84% | |
| Manufacturers Life Insurance Company, The | 0.02% | 157,665 | $17,704,203 | $39,983,844 | +$22,279,641 | +125.84% | |
| Strategic Wealth Partners, Ltd. | 0.59% | 167,099 | $17,178,136 | $42,376,306 | +$25,198,170 | +146.69% |
Frequently asked questions about SIMO
Who owns the most SIMO stock?
The largest holders of SIMO are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for SILICON MOTION TECHNOL-ADR (SIMO).
Is SIMO widely held by superinvestors?
Many widely followed stocks like SIMO appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly SIMO is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.