POWI — POWER INTEGRATIONS INC

Ownership history in TWO SIGMA SECURITIES, LLC  ·  6 quarters on record

This page tracks every 13F SEC filing in which TWO SIGMA SECURITIES, LLC reported a position in POWER INTEGRATIONS INC (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
0.04% (2025 Q3)
Avg. % of fund
0.02%
First filed
2023 Q4
Last filed
2025 Q3
Quarters held
6
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 ADDED 7,330 +2,756 +60.3% 0.04% $295K $39.78
2025 Q2 ADDED 4,574 +157 +3.6% 0.03% $256K $55.05
2024 Q4 REDUCED 4,417 -4,049 -47.8% 0.04% $273K $60.31
2024 Q3 ADDED 8,466 +3,176 +60.0% 0.01% $543K $62.47
2024 Q2 ADDED 5,290 +979 +22.7% 0.00% $371K $68.18
2023 Q4 INITIATED 4,311 — — 0.00% $354K —
% 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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