SIMO Institutional Ownership & Shareholders
SILICON MOTION TECHNOL-ADR (SIMO) is currently held by 396 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $8.03B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
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 $475.27M, representing an estimated loss of -37.40% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 44% of the total disclosed SIMO value among the investors covered in this analysis. Major shareholders include Fmr Llc, Acadian Asset Management Llc, Invesco Ltd., 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
396
Total Reported Value
$8.03B
Largest Holder
Fmr Llc
Largest Position
$759.27M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
121
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 | $475,267,978 | -$283,999,097 | -37.40% | |
| Acadian Asset Management Llc | 0.52% | 1,315,838 | $438,527,000 | $274,549,599 | -$163,977,401 | -37.39% | |
| Invesco Ltd. | 0.03% | 1,142,437 | $380,808,525 | $238,369,480 | -$142,439,045 | -37.40% | |
| Alkeon Capital Management Llc | 1.41% | 1,100,000 | $366,663,000 | $229,515,000 | -$137,148,000 | -37.40% | |
| Hawk Ridge Capital Management Lp | 10.85% | 1,015,215 | $338,401,616 | $211,824,610 | -$126,577,006 | -37.40% | |
| Polar Capital Holdings Plc | 0.88% | 931,375 | $310,455,229 | $194,331,394 | -$116,123,835 | -37.40% | |
| Driehaus Capital Management Llc | 1.52% | 786,074 | $262,022,046 | $164,014,340 | -$98,007,706 | -37.40% | |
| Reinhart Partners, Llc. | 6.26% | 919,626 | $257,495,280 | $191,879,965 | -$65,615,315 | -25.48% | |
| Two Sigma Investments, Lp | 0.18% | 701,105 | $233,699,330 | $146,285,558 | -$87,413,772 | -37.40% | |
| Wolf Hill Capital Management, Lp | 17.70% | 548,791 | $182,928,504 | $114,505,242 | -$68,423,262 | -37.40% | |
| Bahl & Gaynor Inc | 0.70% | 453,307 | $151,100,822 | $94,582,506 | -$56,518,316 | -37.40% | |
| Granahan Investment Management, Llc | 5.29% | 445,752 | $148,582,514 | $93,006,155 | -$55,576,359 | -37.40% | |
| Lazard Asset Management Llc | 0.22% | 435,931 | $145,308,944 | $90,957,003 | -$54,351,941 | -37.40% | |
| Arrowstreet Capital, Limited Partnership | 0.06% | 417,894 | $139,296,607 | $87,193,583 | -$52,103,024 | -37.40% | |
| Lord, Abbett & Co. Llc | 0.36% | 377,899 | $125,965,000 | $78,848,626 | -$47,116,374 | -37.40% | |
| D. E. Shaw & Co., Inc. | 0.07% | 363,105 | $121,033,790 | $75,761,858 | -$45,271,932 | -37.40% | |
| Analog Century Management Lp | 4.42% | 362,502 | $120,832,792 | $75,636,042 | -$45,196,750 | -37.40% | |
| Systematic Financial Management Lp | 2.35% | 354,216 | $118,071,264 | $73,907,168 | -$44,164,096 | -37.40% | |
| Bit Capital Gmbh | 3.99% | 349,195 | $116,397,169 | $72,859,537 | -$43,537,632 | -37.40% | |
| Schwartz Investment Counsel Inc | 3.91% | 401,300 | $112,364,000 | $83,731,245 | -$28,632,755 | -25.48% | |
| Oberweis Asset Management Inc/ | 2.18% | 316,350 | $105,448,946 | $66,006,428 | -$39,442,519 | -37.40% | |
| Marshall Wace, Llp | 0.08% | 291,836 | $97,277,693 | $60,891,581 | -$36,386,112 | -37.40% | |
| Morgan Stanley | 0.01% | 291,727 | $97,241,667 | $60,868,839 | -$36,372,828 | -37.40% | |
| Bank Of America Corp | 0.01% | 276,785 | $92,260,736 | $57,751,190 | -$34,509,546 | -37.40% | |
| Voya Investment Management Llc | 0.08% | 275,122 | $91,706,416 | $57,404,205 | -$34,302,211 | -37.40% | |
| Summit Partners Public Asset Management, Llc | 2.27% | 261,815 | $87,270,794 | $54,627,700 | -$32,643,094 | -37.40% | |
| Robeco Institutional Asset Management B.V. | 0.10% | 307,570 | $86,119,600 | $64,174,481 | -$21,945,120 | -25.48% | |
| Massachusetts Financial Services Co | 0.02% | 204,951 | $68,691,592 | $42,763,026 | -$25,928,566 | -37.75% | |
| Russell Investments Group, Ltd. | 0.06% | 200,346 | $66,645,173 | $41,802,193 | -$24,842,980 | -37.28% | |
| Boston Partners | 0.06% | 199,201 | $66,384,492 | $41,563,289 | -$24,821,203 | -37.39% | |
| Wellington Management Group Llp | 0.01% | 185,251 | $61,749,715 | $38,652,621 | -$23,097,094 | -37.40% | |
| Ubs Group Ag | 0.01% | 180,420 | $60,139,400 | $37,644,633 | -$22,494,767 | -37.40% | |
| Millennium Management Llc | 0.04% | 179,946 | $59,981,400 | $37,545,733 | -$22,435,667 | -37.40% | |
| Apis Capital Advisors, Llc | 5.79% | 178,400 | $59,466,072 | $37,223,160 | -$22,242,912 | -37.40% | |
| Neumeier Poma Investment Counsel Llc | 4.03% | 176,408 | $58,802,079 | $36,807,529 | -$21,994,550 | -37.40% | |
| Ophir Asset Management Pty Ltd | 4.78% | 174,335 | $58,111,086 | $36,374,998 | -$21,736,088 | -37.40% | |
| Loomis Sayles & Co L P | 0.07% | 161,432 | $53,810,129 | $33,682,787 | -$20,127,342 | -37.40% | |
| Highland Peak Capital, Llc | 21.74% | 444,515 | $49,914,589 | $92,748,055 | +$42,833,466 | +85.81% | |
| Sei Investments Co | 0.04% | 142,327 | $47,441,963 | $29,696,529 | -$17,745,434 | -37.40% | |
| Qube Research & Technologies Ltd | 0.05% | 138,433 | $46,143,872 | $28,884,045 | -$17,259,827 | -37.40% | |
| Aigh Capital Management Llc | 5.21% | 164,000 | $45,920,000 | $34,218,600 | -$11,701,400 | -25.48% | |
| Manufacturers Life Insurance Company, The | 0.03% | 129,537 | $43,178,568 | $27,027,895 | -$16,150,673 | -37.40% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.07% | 125,737 | $41,911,914 | $26,235,025 | -$15,676,889 | -37.40% |
| Blair William & Co/Il | 0.11% | 125,176 | $41,725,037 | $26,117,972 | -$15,607,065 | -37.40% | |
| Goldman Sachs Group Inc | 0.00% | 124,696 | $41,564,922 | $26,017,820 | -$15,547,102 | -37.40% | |
| Northern Trust Corp | 0.00% | 124,077 | $41,358,586 | $25,888,666 | -$15,469,920 | -37.40% | |
| Heartland Advisors Inc | 1.84% | 123,895 | $41,297,920 | $25,850,692 | -$15,447,228 | -37.40% | |
| Ratan Capital Management Lp | 12.65% | 117,623 | $39,207,275 | $24,542,039 | -$14,665,236 | -37.40% | |
| Tidal Investments Llc | 0.09% | 116,620 | $38,872,945 | $24,332,763 | -$14,540,182 | -37.40% | |
| Knightsbridge Asset Management, Llc | 5.00% | 114,282 | $38,093,689 | $23,844,939 | -$14,248,750 | -37.40% |
Frequently asked questions about SIMO
Who are the largest institutional holders of SIMO?
The largest institutional holders of SIMO reported in the latest SEC Form 13F filings include Fmr Llc, Acadian Asset Management Llc, Invesco Ltd., Alkeon Capital Management Llc, and Hawk Ridge Capital Management Lp. InsiderSet ranks institutional holders by their latest reported SIMO position.
What is SIMO institutional ownership?
This page tracks SIMO positions reported by institutional investment managers through SEC Form 13F. SILICON MOTION TECHNOL-ADR (SIMO) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own SIMO?
InsiderSet currently tracks 396 institutional managers reporting SIMO holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of SIMO shareholders.
How much SIMO stock do institutions own?
Institutional investment managers disclosed approximately $8.03B in SIMO holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was SIMO institutional ownership last updated?
The latest SIMO institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional SIMO holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its SIMO position after the reporting date.
Are institutions buying or selling SIMO?
Institutional buying and selling can be analyzed by comparing SIMO positions across consecutive 13F reporting periods. InsiderSet's SIMO Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View SIMO ownership changes.
How has SIMO institutional ownership changed over time?
InsiderSet tracks SIMO institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.