POWI — * POWER INTEGRATIONS INC COM

Ownership history in Magnetar Financial LLC  ·  10 quarters on record

This page tracks every 13F SEC filing in which Magnetar Financial LLC reported a position in * POWER INTEGRATIONS INC COM (POWI). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
0.27% (2009 Q4)
Avg. % of fund
0.05%
First filed
2009 Q3
Last filed
2025 Q3
Quarters held
10
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 ADDED 39,461 +33,646 +578.6% 0.01% $1.6M $39.78
2025 Q1 REDUCED 5,815 -1,886 -24.5% 0.00% $294K $49.53
2024 Q2 ADDED 7,701 +1,580 +25.8% 0.01% $541K $68.18
2022 Q2 ADDED 6,121 +1,252 +25.7% 0.00% $459K $71.44
6 older quarters hidden  —  Sign in free or upgrade to Premium to see full history
% of Fund (quarterly)    POWI price (monthly, adj. close)

Other funds also holding POWI

As of 2025 Q4 — sorted by position size

S Squared Technology, LLC 3Y 7Y 1.79% Grandeur Peak Global Advisors, LLC 3Y 7Y 1.46% SNYDER CAPITAL MANAGEMENT L P 3Y 7Y 1.37% DISCIPLINED GROWTH INVESTORS INC /MN 3Y 7Y 1.36% Foresight Group Ltd Liability Partnership 1.19% QSV Equity Investors LLC 1.12% Tributary Capital Management, LLC 3Y 7Y 1.06% Copeland Capital Management, LLC 3Y 7Y 0.93% Granite Investment Partners, LLC 3Y 7Y 0.75% HERALD INVESTMENT MANAGEMENT Ltd 3Y 7Y 0.7%
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