# Seagate Technology Holdings plc — DEFA14A

Seagate Technology Holdings plc of SINGAPORE, U0 filed a DEFA14A with the SEC on 2021-08-30. Industry: Computer Storage Devices.

## Filing

- Filed: 2021-08-30
- Form: DEFA14A
- Accession: 0001193125-21-260599
- Registrant: Seagate Technology Holdings plc
- CIK: 0001137789
- Industry (SIC): Computer Storage Devices (3572)
- Location: SINGAPORE, U0

## Documents (3)

| Seq | Type | Description |
| --- | --- | --- |
| 1 | DEFA14A | DEFINITIVE ADDITIONAL MATERIALS |
| 2 | GRAPHIC | GRAPHIC |
| 3 | GRAPHIC | GRAPHIC |

## Filing timeline for this registrant (60)

_Showing 12 of 60 filings._

| Filed | Form |
| --- | --- |
| [2026-09-08](https://search.stillhousedata.com/proxy/0001137789-26-000209) | DEFA14A |
| [2026-09-08](https://search.stillhousedata.com/proxy/0001137789-26-000207) | DEF 14A |
| [2025-10-14](https://search.stillhousedata.com/proxy/0001628280-25-045007) | DEFR14A |
| [2025-09-09](https://search.stillhousedata.com/proxy/0001137789-25-000212) | DEFA14A |
| [2025-09-09](https://search.stillhousedata.com/proxy/0001137789-25-000211) | DEF 14A |
| [2024-09-03](https://search.stillhousedata.com/proxy/0001137789-24-000086) | DEFA14A |
| [2024-09-03](https://search.stillhousedata.com/proxy/0001137789-24-000085) | DEF 14A |
| [2023-09-05](https://search.stillhousedata.com/proxy/0001137789-23-000063) | DEFA14A |
| [2023-09-05](https://search.stillhousedata.com/proxy/0001137789-23-000062) | DEF 14A |
| [2022-09-01](https://search.stillhousedata.com/proxy/0001193125-22-236649) | DEFA14A |
| [2022-09-01](https://search.stillhousedata.com/proxy/0001193125-22-236639) | DEF 14A |
| 2021-08-30 | DEFA14A |

## More

- [CIK 1137789 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1137789&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0001193125-21-260599.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.
