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 $7.29B 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 $759.27M in its June 30, 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 $612.51M, representing an estimated loss of -19.33% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 45% of the total disclosed SIMO value among the investors covered in this analysis. Major shareholders include Fmr Llc, Invesco Ltd., Alkeon Capital Management Llc, 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
370
Total Reported Value
$7.29B
Largest Holder
Fmr Llc
Largest Position
$759.27M
Insider Transactions (90d)
4
Latest Filing Quarter
Q2 2026
New Institutional Positions
116
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Fmr Llc | 0.03% | 2,277,824 | $759,267,075 | $612,506,874 | -$146,760,201 | -19.33% | |
| Invesco Ltd. | 0.03% | 1,142,437 | $380,808,525 | $307,201,309 | -$73,607,216 | -19.33% | |
| Alkeon Capital Management Llc | 1.41% | 1,100,000 | $366,663,000 | $295,790,000 | -$70,873,000 | -19.33% | |
| Hawk Ridge Capital Management Lp | 10.85% | 1,015,215 | $338,401,616 | $272,991,314 | -$65,410,303 | -19.33% | |
| Reinhart Partners, Llc. | 7.35% | 966,060 | $322,022,108 | $259,773,534 | -$62,248,574 | -19.33% | |
| Polar Capital Holdings Plc | 0.88% | 931,375 | $310,455,229 | $250,446,737 | -$60,008,492 | -19.33% | |
| Driehaus Capital Management Llc | 1.52% | 786,074 | $262,022,046 | $211,375,299 | -$50,646,747 | -19.33% | |
| Two Sigma Investments, Lp | 0.18% | 701,105 | $233,699,330 | $188,527,134 | -$45,172,196 | -19.33% | |
| Wolf Hill Capital Management, Lp | 17.70% | 548,791 | $182,928,504 | $147,569,900 | -$35,358,604 | -19.33% | |
| Granahan Investment Management, Llc | 5.29% | 445,752 | $148,582,514 | $119,862,713 | -$28,719,801 | -19.33% | |
| Lazard Asset Management Llc | 0.22% | 435,931 | $145,308,944 | $117,221,846 | -$28,087,098 | -19.33% | |
| Arrowstreet Capital, Limited Partnership | 0.06% | 417,894 | $139,296,607 | $112,371,697 | -$26,924,910 | -19.33% | |
| D. E. Shaw & Co., Inc. | 0.07% | 363,105 | $121,033,790 | $97,638,934 | -$23,394,856 | -19.33% | |
| Analog Century Management Lp | 4.42% | 362,502 | $120,832,792 | $97,476,788 | -$23,356,004 | -19.33% | |
| Systematic Financial Management Lp | 2.35% | 354,216 | $118,071,264 | $95,248,682 | -$22,822,582 | -19.33% | |
| Bit Capital Gmbh | 3.99% | 349,195 | $116,397,169 | $93,898,535 | -$22,498,634 | -19.33% | |
| Oberweis Asset Management Inc/ | 2.18% | 316,350 | $105,448,946 | $85,066,515 | -$20,382,431 | -19.33% | |
| Robeco Institutional Asset Management B.V. | 0.12% | 299,699 | $99,898,666 | $80,589,061 | -$19,309,605 | -19.33% | |
| Marshall Wace, Llp | 0.08% | 291,836 | $97,277,693 | $78,474,700 | -$18,802,993 | -19.33% | |
| Morgan Stanley | 0.01% | 291,727 | $97,241,667 | $78,445,390 | -$18,796,277 | -19.33% | |
| Bank Of America Corp | 0.01% | 276,785 | $92,260,736 | $74,427,487 | -$17,833,250 | -19.33% | |
| Voya Investment Management Llc | 0.08% | 275,122 | $91,706,416 | $73,980,306 | -$17,726,110 | -19.33% | |
| Schwartz Investment Counsel Inc | 2.99% | 270,000 | $89,999,100 | $72,603,000 | -$17,396,100 | -19.33% | |
| Summit Partners Public Asset Management, Llc | 2.27% | 261,815 | $87,270,794 | $70,402,054 | -$16,868,741 | -19.33% | |
| Massachusetts Financial Services Co | 0.02% | 204,951 | $68,691,592 | $55,111,324 | -$13,580,268 | -19.77% | |
| Russell Investments Group, Ltd. | 0.06% | 200,346 | $66,645,173 | $53,873,039 | -$12,772,134 | -19.16% | |
| Boston Partners | 0.06% | 199,201 | $66,384,492 | $53,565,149 | -$12,819,343 | -19.31% | |
| Wellington Management Group Llp | 0.01% | 185,251 | $61,749,715 | $49,813,994 | -$11,935,721 | -19.33% | |
| Fenghe Fund Management Pte. Ltd. | 5.74% | 181,482 | $60,493,395 | $48,800,510 | -$11,692,885 | -19.33% | |
| Ubs Group Ag | 0.01% | 180,420 | $60,139,400 | $48,514,938 | -$11,624,462 | -19.33% | |
| Millennium Management Llc | 0.04% | 179,946 | $59,981,400 | $48,387,479 | -$11,593,921 | -19.33% | |
| Apis Capital Advisors, Llc | 5.79% | 178,400 | $59,466,072 | $47,971,760 | -$11,494,312 | -19.33% | |
| Neumeier Poma Investment Counsel Llc | 4.03% | 176,408 | $58,802,079 | $47,436,111 | -$11,365,968 | -19.33% | |
| Ophir Asset Management Pty Ltd | 4.78% | 174,335 | $58,111,086 | $46,878,681 | -$11,232,405 | -19.33% | |
| Loomis Sayles & Co L P | 0.07% | 161,432 | $53,810,129 | $43,409,065 | -$10,401,064 | -19.33% | |
| Highland Peak Capital, Llc | 21.74% | 444,515 | $49,914,589 | $119,530,083 | +$69,615,494 | +139.47% | |
| Herald Investment Management Ltd | 6.67% | 147,700 | $49,179,667 | $39,716,530 | -$9,463,137 | -19.24% | |
| Aigh Capital Management Llc | 4.35% | 144,000 | $47,999,520 | $38,721,600 | -$9,277,920 | -19.33% | |
| Sei Investments Co | 0.04% | 142,327 | $47,441,963 | $38,271,730 | -$9,170,233 | -19.33% | |
| Qube Research & Technologies Ltd | 0.05% | 138,433 | $46,143,872 | $37,224,634 | -$8,919,238 | -19.33% | |
| Manufacturers Life Insurance Company, The | 0.03% | 129,537 | $43,178,568 | $34,832,499 | -$8,346,069 | -19.33% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.07% | 125,737 | $41,911,914 | $33,810,679 | -$8,101,235 | -19.33% |
| Blair William & Co/Il | 0.11% | 125,176 | $41,725,037 | $33,659,826 | -$8,065,211 | -19.33% | |
| Goldman Sachs Group Inc | 0.00% | 124,696 | $41,564,922 | $33,530,754 | -$8,034,168 | -19.33% | |
| Northern Trust Corp | 0.00% | 124,077 | $41,358,586 | $33,364,305 | -$7,994,281 | -19.33% | |
| Heartland Advisors Inc | 1.84% | 123,895 | $41,297,920 | $33,315,365 | -$7,982,555 | -19.33% | |
| Tidal Investments Llc | 0.09% | 116,620 | $38,872,945 | $31,359,118 | -$7,513,827 | -19.33% | |
| Envestnet Asset Management Inc | 0.01% | 111,780 | $37,259,636 | $30,057,642 | -$7,201,994 | -19.33% | |
| Raymond James Financial Inc | 0.01% | 110,710 | $36,902,798 | $29,769,919 | -$7,132,879 | -19.33% | |
| Westfield Capital Management Co Lp | 0.12% | 106,466 | $35,488,312 | $28,628,707 | -$6,859,605 | -19.33% |
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.