Exited position

George Soros’s Power Integrations Inc (POWI) position

Reported position history, portfolio importance and verified filing changes from public SEC disclosures.

Soros Fund ManagementVerified through Q2 2026
Relationship snapshot

At a glance

The full verified relationship, including prior ownership episodes and exits where supported.

First reportedQ3 2007Earliest verified positive filing snapshot
Latest statusExited positionBased on the latest supported relationship state
Peak shares166.67KHighest verified quarter-end share count
Quarters reported4Verified quarters with shares above zero
What happened?

Soros Fund Management first reported Power Integrations Inc in Q3 2007. The reported position was increased and reduced across later filings. The latest verified relationship event shows that Soros Fund Management sold the entire position in Q3 2016, and the stock is no longer reported in the latest verified portfolio.

Verified SEC history

Position over time

See the same verified relationship through reported shares, portfolio weight or reported value.

Metric

Gaps indicate periods that cannot be safely connected or where a verified corporate action changes the raw share scale. Stock price, when available, is market context and not a transaction price.

Key filing events

What changed

Latest filing plus the most meaningful reported changes. Unchanged quarters are collapsed by default.

Q3 2016
Sold the entire position−132.67K shares · No shares reported at quarter-end
Q2 2016
New position+132.67K shares · 132.67K shares reported
Filing context

Quarter-end price $50.07 · Estimated holding basis $50.07

Q2 2008
Sold the entire position−166.67K shares · No shares reported at quarter-end
Q1 2008
Bought 1,005.9% more+151.60K shares · 166.67K shares reported after the change
Filing context

Quarter-end price $29.26 · Estimated holding basis $29.30

Q4 2007
Sold 87.5% of the position−105.69K shares · 15.07K shares remained
Filing context

Quarter-end price $34.44 · Estimated holding basis $29.71

Q3 2007
New position+120.76K shares · 120.76K shares reported
Filing context

Quarter-end price $29.71 · Estimated holding basis $29.71

Portfolio importance

How important was Power Integrations Inc in Soros Fund Management’s reported portfolio?

Relative importance is measured only within the verified primary non-option reported portfolio for each quarter.

Last reported portfolio weight0.2%Q2 2016
Last reported rank#66of 162 reported positions
Peak portfolio weight0.2%Q1 2008
Best historical rank#63Q1 2008
At peak importanceQ1 2008
POWI
0.2%
Largest holding
10.8%
Cross-investor discovery

Who else owns Power Integrations Inc?

Also reported by 1 other tracked investor in their latest verified filings.

Explore Power Integrations Inc across all tracked investors →
SEC evidence & methodology

SEC filing evidence

Market context and filing-derived values are kept separate from actual transaction prices, which 13F filings do not disclose.

Latest verified stock price$49.152026-09-17

Market context only; not an investor transaction price.

Latest verified investor filingQ2 2026 · filed 2026-08-14
Open SEC filing ↗

This tracker follows Soros Fund Management LLC’s Form 13F disclosures—not George Soros’s personal brokerage account. George Soros founded the firm; its current CEO and chief investment officer is Dawn Fitzpatrick. Form 13F does not reveal exact trade dates, execution prices or the purpose of an option position.