MPWR
MONOLITHIC POWER SYSTEMS INCData as of 2026 Q2 (06-30) · 13F snapshot
Summary
MONOLITHIC POWER SYSTEMS INC (MPWR) is held as common stock by 6 tracked hedge-fund managers, with a combined reported value of ~$402.89M; the largest are Izzy Englander, Ken Griffin, Renaissance Technologies. 3 tracked managers also disclosed PUT or CALL positions, reported separately below. This quarter: 2 new, 2 added, 2 trimmed. 20 public STOCK Act / OGE trade disclosures are on record. Data as of 2026 Q2, from public SEC 13F filings, delayed up to ~45 days.
Attention · MediumThis quarter · Heating up
Common-stock holders63 also report options
Congress trades20
Price$1351vs quarter-end-2.25%
Sectors1
This quarter's moves
Top holderNew2
Added2
Trimmed / sold2
Izzy EnglanderCommon-stock positions
PUT and CALL disclosures are excluded from these holder counts and values.
| Investor | Value | % of portfolio | Action |
|---|
PUT / CALL disclosures
Reported separately: 13F option values are not common-stock ownership and do not reveal the full strategy or economic exposure.
Value $117.92M— of portfolio85,3002026 Q2
Value $99.81M— of portfolio72,2002026 Q2
Value $28.48M— of portfolio20,6002026 Q2
Value $22.53M— of portfolio16,3002026 Q2
Value $1.24M— of portfolio9002026 Q2
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Ken GriffinPUT | $117.92M | — | — |
| Ken GriffinCALL | $99.81M | — | — |
| Izzy EnglanderCALL | $28.48M | — | — |
| Izzy EnglanderPUT | $22.53M | — | — |
| Steven CohenCALL | $1.24M | — | — |
Public SEC 13F filings may appear up to 45 days after quarter-end; STOCK Act / OGE trade filings are generally due within 45 days but may be late. Partial data only — research, not investment advice.