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SIMO in the 13F filings

Silicon Motion Technology Co · CUSIP 82706C108

Sector · SemiconductorsTheme · AI infrastructure and semiconductors· L3VLUP-definedTheme · Semiconductors
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
30 Jun 2024
the date the book describes
Filed
14 Aug 2024
latest of these filings; the earliest 6 Aug 2024
Managers listing it
8
at least, of 95 tracked, among listed positions
Comparable managers
94
filed both Q1 2024 and Q2 2024; 7 listed it in both
Shares listed
4,237,219
combined, among listed positions
Reported value
$343m
combined, at the quarter end

Among the 94 comparable managers: 3 buyers (opened or added shares) and 5 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing SIMO in Q2 2024

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2024, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

8 of 8 holders

ActionFiling
Acadian Asset Management LLC1,333,441$108m0.33%Trimmed-3,0076 Aug 2024 (the filing on sec.gov)
Arrowstreet Capital LP780,834$63m0.06%Trimmed-16,92514 Aug 2024 (the filing on sec.gov)
Farallon Capital Management LLC567,534$46m0.20%Trimmed-287,91514 Aug 2024 (the filing on sec.gov)
MFS Investment Management526,645$43munder 0.1%Trimmed-5,5159 Aug 2024 (the filing on sec.gov)
Man Group PLC469,988$38m0.10%Added+227,41414 Aug 2024 (the filing on sec.gov)
Two Sigma Investments LP278,597$23m0.05%Addedn.a.14 Aug 2024 (the filing on sec.gov)
Two Sigma Advisers LP203,281$16munder 0.1%Added+40,20014 Aug 2024 (the filing on sec.gov)
Caxton Associates LLP76,899$6.2m0.21%Trimmed-8,50814 Aug 2024 (the filing on sec.gov)

Largest increases and reductions, by shares

Q1 2024 to Q2 2024, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (0)

No new position among listed positions.

Exited (0)

No exit shown by a manager’s own filing.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
4 in Q3 2024 to 12 in Q2 2026

Tracked managers listing it, at least.

0510152014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
SIMO by quarter
QuarterHoldersReported valueBuyersSellers
Q3 20131$5.3mn.a.n.a.
Q4 20132$12mn.a.n.a.
Q1 20142$23mn.a.n.a.
Q2 20146$75mn.a.n.a.
Q3 20145$87mn.a.n.a.
Q4 20144$75mn.a.n.a.
Q1 20152$13mn.a.n.a.
Q2 20153$14mn.a.n.a.
Q3 20156$23mn.a.n.a.
Q4 20154$17mn.a.n.a.
Q1 20162$128mn.a.n.a.
Q2 20162$150mn.a.n.a.
Q3 20166$250mn.a.n.a.
Q4 20163$77mn.a.n.a.
Q1 20173$144mn.a.n.a.
Q2 20174$261mn.a.n.a.
Q3 20172$223mn.a.n.a.
Q4 20174$268mn.a.n.a.
Q1 20183$286mn.a.n.a.
Q2 20182$303mn.a.n.a.
Q3 20182$274mn.a.n.a.
Q4 20182$99mn.a.n.a.
Q1 20192$117mn.a.n.a.
Q2 20191$140mn.a.n.a.
Q3 20192$151mn.a.n.a.
Q4 20192$203mn.a.n.a.
Q1 20203$142mn.a.n.a.
Q2 20205$219mn.a.n.a.
Q3 20205$139mn.a.n.a.
Q4 20207$188mn.a.n.a.
Q1 20218$191mn.a.n.a.
Q2 20216$302mn.a.n.a.
Q3 20216$316mn.a.n.a.
Q4 202110$540mn.a.n.a.
Q1 20228$361mn.a.n.a.
Q2 20227$486mn.a.n.a.
Q3 20228$252mn.a.n.a.
Q4 20228$172mn.a.n.a.
Q1 20237$222mn.a.n.a.
Q2 20239$337mn.a.n.a.
Q3 20235$161mn.a.n.a.
Q4 20237$111m34
Q1 20248$313m72
Q2 20248$343m35
Q3 20244$135m04
Q4 20242$92m03
Q1 20254$105m22
Q2 20254$245m33
Q3 20254$260m13
Q4 20255$215m186
Q1 20266$260m1410
Q2 202612$2.3bn1217

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

SIMO and NVDA →SIMO and AVGO →SIMO and MU →Choose a stock to compare with SIMO →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own SIMO, latest filings →Back to the 13F Explorer →