DOSSIER · 13F Holders · Q1 2026Technology · Semiconductors & Related Devices
SIMO

SILICON MOTION TECHNOLOGY CO

320 institutions still hold SILICON MOTION TECHNOLOGY CO as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 82706C108·Semiconductors & Related Devices·320 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$2.0B
visible holders
Holders
320
filers reporting
Concentration
19.42%
FMR LLC #1
top holder share
AI Holders Summary · Q1 2026

Silicon Motion Technology Corporation (SIMO, CUSIP 82706C108) entered Q1 2026 with $2.7B of institutional 13F value across 262 institutional accounts — a holder profile appropriate for a fabless semiconductor company specializing in NAND flash controllers, SSD (solid-state drive) controller SoCs, and embedded storage and display products for consumer electronics, enterprise storage, and mobile applications. The defining Q1 signal is FMR LLC adding $67M alongside Pertento Partners reducing $60M — a near-neutral rotation within the storage-controller and SoC sleeve that reflects fundamental-analyst conviction rotation rather than a thesis revision. For smart-money trackers, SIMO's institutional footprint is best read as a proxy for NAND/SSD market dynamics and mobile-storage SoC demand — the stock's performance is highly correlated with NAND bit pricing, SSD adoption rates in client and enterprise computing, and smartphone storage content growth, making Q/Q flows a useful read on whether institutional managers are building or trimming exposure to the storage-controller tier of the semiconductor complex.

Q1 2026 context: SSD market structural growth from (1) client PC storage upgrade (from HDD to NVMe SSD), (2) enterprise/data center SSD adoption for performance tier, (3) content growth in smartphones driving higher storage capacity per device (128GB, 256GB, 512GB standard). NAND pricing cycles create earnings volatility. SIMO's market position in SSD controllers is a structural advantage.

FMR +$67M and Pertento -$60M = near-neutral rotation. FMR is building at the SoC/controller tier.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
FMR LLC
CIK 0000315066
$382M3.4M0.02%Q1 2026
02
REINHART PARTNERS, LLC.
CIK 0001080298
$322M966K7.35%Q2 2026
03
ACADIAN ASSET MANAGEMENT LLC
CIK 0000916542
$145M1.3M0.21%Q1 2026
04
HAWK RIDGE CAPITAL MANAGEMENT LP
CIK 0001609074
$132M1.2M4.79%Q1 2026
05
LORD, ABBETT & CO. LLC
CIK 0000728100
$108M962K0.35%Q1 2026
06
Robeco Institutional Asset Management B.V.
CIK 0001418773
$100M300K0.12%Q2 2026
07
LAZARD ASSET MANAGEMENT LLC
CIK 0001207017
$88M782K0.14%Q1 2026
08
Wolf Hill Capital Management, LP
CIK 0001785988
$65M581K6.33%Q1 2026
09
Man Group plc
CIK 0001637460
$63M560K0.11%Q1 2026
10
DRIEHAUS CAPITAL MANAGEMENT LLC
CIK 0000938206
$57M510K0.42%Q1 2026
11
SYSTEMATIC FINANCIAL MANAGEMENT LP
CIK 0001085936
$57M507K1.30%Q1 2026
12
CastleKnight Management LP
CIK 0001835751
$57M503K0.94%Q1 2026
13
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC
CIK 0001638555
$51M456K1.38%Q1 2026
14
Kite Lake Capital Management (UK) LLP
CIK 0001687444
$51M453K40.76%Q1 2026
15
HIGHLAND PEAK CAPITAL, LLC
CIK 0001961320
$50M445K13.38%Q1 2026
16
Herald Investment Management Ltd
CIK 0001512022
$49M148K6.67%Q2 2026
17
NEUMEIER POMA INVESTMENT COUNSEL LLC
CIK 0001044936
$48M428K3.96%Q1 2026
18
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$48M426K0.03%Q1 2026
19
Invesco Ltd.
CIK 0000914208
$47M418K0.00%Q1 2026
20
Pertento Partners LLP
CIK 0001894571
$46M413K3.39%Q1 2026
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Insiders at SILICON MOTION TECHNOLOGY CO
Lin Kuan-MingShieh Han-Ping