144 0002037944 XXXXXXXX LIVE 0000833640 POWER INTEGRATIONS, INC. 000-23441 5245 Hellyer Avenue San Jose CA 95138-1002 (408) 414-9200 GAGAN JAIN Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

3481 167859.32 55504000 02/25/2026 NASDAQ Common 02/01/2026 Restricted Stock Issuer N 131 02/01/2026 Not Applicable Common 12/31/2025 Performance Shares Issuer N 1596 12/31/2025 Not Applicable Common 02/01/2026 Restricted Stock Issuer N 87 02/01/2026 Not Applicable Common 01/28/2026 Restricted Stock Issuer N 1405 01/28/2026 Not Applicable Common 01/30/2026 Employee Stock Purchase Plan Issuer N 262 01/30/2026 Cash N Gagan Jain

5245 Hellyer Avenue San Jose CA 95138-1002

COMMON 02/09/2026 938 43682.43 Gagan Jain

5245 Hellyer Avenue San Jose CA 95138-1002

COMMON 02/03/2026 157 7156.74 Gagan Jain

5245 Hellyer Avenue San Jose CA 95138-1002

COMMON 01/29/2026 995 46267.62 02/25/2026 /s/ Gagan Jain