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Of the 11 tracked institutions holding SIMO, 5 have a 3-year clone track record — 5 of them beat the S&P. Average holder's clone alpha: +7.2pt. It's a gauge of who owns the name, not just how many.
Among the 11 tracked institutional investors we monitor, SIMO (SILICON MOTION TECHNOLOGY CO) is held with a combined value of $963.22M across 2,979,688 shares. The largest holder is FMR LLC with a position worth $759.27M (0.03% of their portfolio). 3 funds opened new positions in the most recent quarter. 2 funds increased their holdings. 6 funds reduced their position.
Total Institutional Value
$963.22M
Total Shares Held
2,979,688
Institutional Holders
11
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | FMR LLC | $759.27M | 0.03% | -33.0% |
| 2 | WELLINGTON MANAGEMENT GROUP LLP | $61.75M | 0.01% | -39.1% |
| 3 | MILLENNIUM MANAGEMENT LLC | $59.98M | 0.04% | -54.5% |
| 4 | BlackRock, Inc. | $25.25M | 0.00% | +0.1% |
| 5 | STATE STREET CORP | $24.47M | 0.00% | -18.6% |
| 6 | CITADEL ADVISORS LLC | $13.50M | 0.01% | -37.3% |
| 7 | TWO SIGMA ADVISERS, LP | $11.56M | 0.02% | +437.9% |
| 8 | Point72 Asset Management, L.P. | $6.26M | 0.01% | New |
| 9 | MAVERICK CAPITAL LTD | $615.66K | 0.01% | -74.9% |
| 10 | RENAISSANCE TECHNOLOGIES LLC | $326.33K | 0.00% | New |
SEC Schedule 13D (activist) and 13G (passive) filings for SIMO. Filed when an investor acquires 5%+ ownership.
As of the latest SEC 13F filings, FMR LLC is the largest institutional holder of SIMO with a position worth $759.27M, representing 0.03% of their portfolio. In total, 11 institutional investors hold SIMO with a combined value of $963.22M.
In the most recent quarter, 3 funds opened a new position in SIMO. Additionally, 2 increased their holdings and 6 reduced their positions.
Institutional investors hold $963.22M worth of SIMO stock across 11 positions. The largest institutional holder is FMR LLC with $759.27M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For SIMO, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their SIMO positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Last Close
$222.30
2026-10-21
YTD
+137.1%
55% of 52-week range
