# POWER INTEGRATIONS INC — DEFA14A

POWER INTEGRATIONS INC of SAN JOSE, CA filed a DEFA14A with the SEC on 2026-04-21. Industry: Semiconductors & Related Devices.

## Filing

- Filed: 2026-04-21
- Form: DEFA14A
- Accession: 0000833640-26-000067
- Registrant: POWER INTEGRATIONS INC
- CIK: 0000833640
- Industry (SIC): Semiconductors & Related Devices (3674)
- State of incorporation: CA
- Location: SAN JOSE, CA

## Documents (3)

| Seq | Type | Description |
| --- | --- | --- |
| 1 | DEFA14A | DEFA14A |
| 2 | GRAPHIC | GRAPHIC |
| 3 | GRAPHIC | GRAPHIC |

## Filing timeline for this registrant (60)

_Showing 12 of 60 filings._

| Filed | Form |
| --- | --- |
| 2026-04-21 | DEFA14A |
| [2026-04-21](https://search.stillhousedata.com/proxy/0000833640-26-000065) | DEF 14A |
| [2025-03-31](https://search.stillhousedata.com/proxy/0000833640-25-000095) | DEFA14A |
| [2025-03-31](https://search.stillhousedata.com/proxy/0000833640-25-000093) | DEF 14A |
| [2025-03-19](https://search.stillhousedata.com/proxy/0000833640-25-000085) | PRE 14A |
| [2024-03-29](https://search.stillhousedata.com/proxy/0000833640-24-000076) | DEFA14A |
| [2024-03-29](https://search.stillhousedata.com/proxy/0000833640-24-000074) | DEF 14A |
| [2023-03-31](https://search.stillhousedata.com/proxy/0000833640-23-000101) | DEFA14A |
| [2023-03-31](https://search.stillhousedata.com/proxy/0000833640-23-000099) | DEF 14A |
| [2022-03-29](https://search.stillhousedata.com/proxy/0000833640-22-000067) | DEFA14A |
| [2022-03-29](https://search.stillhousedata.com/proxy/0000833640-22-000065) | DEF 14A |
| [2021-03-29](https://search.stillhousedata.com/proxy/0000833640-21-000089) | DEFA14A |

## More

- [CIK 833640 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=833640&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0000833640-26-000067.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.