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Silicon Motion

273 hedge funds and large institutions have $3.05B invested in Silicon Motion in 2026 Q1 according to their latest regulatory filings, with 62 funds opening new positions, 95 increasing their positions, 89 reducing their positions, and 26 closing their positions.

New
Increased
Maintained
Reduced
Closed

533% more call options, than puts

Call options by funds: $87.9M | Put options by funds: $13.9M

138% more first-time investments, than exits

New positions opened: 62 | Existing positions closed: 26

78% more funds holding in top 10

Funds holding in top 10: 916 (+7)

20% more capital invested

Capital invested by funds: $2.54B → $3.05B (+$504M)

14% more funds holding

Funds holding: 240273 (+33)

7% more repeat investments, than reductions

Existing positions increased: 95 | Existing positions reduced: 89

0.8% less ownership

Funds ownership: 80.57%79.77% (-0.8%)

Holders
273
Holders Change
+33
Holders Change %
+13.75%
% of All Funds
3.36%
Holding in Top 10
16
Holding in Top 10 Change
+7
Holding in Top 10 Change %
+77.78%
% of All Funds
0.2%
New
62
Increased
95
Reduced
89
Closed
26
Calls
$87.9M
Puts
$13.9M
Net Calls
+$74M
Net Calls Change
+$63.5M
Name Holding Trade Value Shares
Change
Change in
Stake
CM
26
CastleKnight Management
New York
$36.3M +$29.3M +241,239 +293%
Wellington Management Group
27
Wellington Management Group
Massachusetts
$34.2M -$47.7M -392,713 -56%
SIC
28
Schwartz Investment Counsel
Michigan
$33.7M +$9.71M +80,000 +36%
OAM
29
Oberweis Asset Management
Illinois
$31.7M +$5.61M +46,250 +20%
Marshall Wace
30
Marshall Wace
United Kingdom
$31.1M +$17.5M +143,949 +109%
Two Sigma Investments
31
Two Sigma Investments
New York
$30.8M -$12.8M -105,260 -28%
Boston Partners
32
Boston Partners
Massachusetts
$30.6M -$13.5M -111,004 -29%
FCM
33
Frontier Capital Management
Massachusetts
$30.6M -$29M -239,115 -47%
HA
34
Heartland Advisors
Wisconsin
$28.3M -$2.47M -20,314 -7%
ACA
35
Apis Capital Advisors
New York
$28M +$4.26M +35,120 +16%
Bank of America
36
Bank of America
North Carolina
$27.4M +$7.4M +60,970 +33%
Massachusetts Financial Services
37
Massachusetts Financial Services
Massachusetts
$23.8M +$434K +3,578 +2%
Morgan Stanley
38
Morgan Stanley
New York
$23.7M -$6.54M -53,884 -20%
Voloridge Investment Management
39
Voloridge Investment Management
Florida
$23.6M +$11.9M +97,844 +87%
ACM
40
AIGH Capital Management
Maryland
$22.5M +$24.3M +200,000 New
Russell Investments Group
41
Russell Investments Group
United Kingdom
$22.3M +$560K +4,616 +2%
GIM
42
Granahan Investment Management
Massachusetts
$21.9M -$4.11M -33,877 -15%
Loomis, Sayles & Company
43
Loomis, Sayles & Company
Massachusetts
$21.2M +$22.9M +188,653 New
NAMI
44
Nomura Asset Management International
Pennsylvania
$19.7M +$8.09M +66,627 +61%
First Eagle Investment Management
45
First Eagle Investment Management
New York
$18.9M +$1.81M +14,920 +10%
FAM
46
Fred Alger Management
New York
$18.1M +$19.5M +160,891 New
Manulife (Manufacturers Life Insurance)
47
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$17.7M -$25.1M -207,135 -57%
BG
48
Bahl & Gaynor
Ohio
$17.5M +$18.9M +155,565 New
Schroder Investment Management Group
49
Schroder Investment Management Group
United Kingdom
$14.6M +$12.2M +100,865 +267%
Northern Trust
50
Northern Trust
Illinois
$14M -$58.7K -484 -0.4%

SIMO Hedge Fund Activity: Q1 2026 in Review

273 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Silicon Motion (SIMO) for Q1 2026, worth a combined $3.05B — up 20% from $2.54B a quarter earlier.

Buyers outnumbered sellers: 62 funds opened new SIMO positions and 26 closed out — a net gain of 36 holders — while 95 added to existing stakes and 89 trimmed.

The largest buyer was Analog Century Management, opening a new position worth an estimated $65.4M. The largest seller was Pertento Partners, cutting an estimated $89.7M.

  • 273 institutional investors held Silicon Motion (SIMO) as of Q1 2026, up from 240 in Q4 2025.
  • Funds reported $3.05B of Silicon Motion stock for Q1 2026, up 20% quarter-over-quarter.
  • 62 funds opened new Silicon Motion positions in Q1 2026 and 26 closed out, a net change of +36 holders.
  • The largest Silicon Motion buyer in Q1 2026 was Analog Century Management, an estimated $65.4M added.
  • The largest Silicon Motion seller in Q1 2026 was Pertento Partners, an estimated $89.7M sold.

Based on aggregated 13F filings for Q1 2026.