# Horsehead Holding Corp — DEF 14A

Horsehead Holding Corp of PITTSBURGH, PA filed a DEF 14A with the SEC on 2015-03-20. Industry: Primary Smelting & Refining of  Nonferrous Metals.

## Filing

- Filed: 2015-03-20
- Form: DEF 14A
- Accession: 0001193125-15-099385
- Registrant: Horsehead Holding Corp
- CIK: 0001385544
- Industry (SIC): Primary Smelting & Refining of  Nonferrous Metals (3330)
- State of incorporation: DE
- Location: PITTSBURGH, PA

## Documents (5)

| Seq | Type | Description |
| --- | --- | --- |
| 1 | DEF 14A | DEF 14A |
| 2 | GRAPHIC | GRAPHIC |
| 3 | GRAPHIC | GRAPHIC |
| 4 | GRAPHIC | GRAPHIC |
| 5 | GRAPHIC | GRAPHIC |

## Filing timeline for this registrant (11)

| Filed | Form |
| --- | --- |
| [2015-03-20](https://search.stillhousedata.com/proxy/0001193125-15-099393) | DEFA14A |
| 2015-03-20 | DEF 14A |
| [2014-03-26](https://search.stillhousedata.com/proxy/0001193125-14-115677) | DEFA14A |
| [2014-03-26](https://search.stillhousedata.com/proxy/0001193125-14-115670) | DEF 14A |
| [2013-04-04](https://search.stillhousedata.com/proxy/0001193125-13-141480) | DEF 14A |
| [2012-04-10](https://search.stillhousedata.com/proxy/0001193125-12-156444) | DEF 14A |
| [2011-05-06](https://search.stillhousedata.com/proxy/0000950123-11-046741) | DEFA14A |
| [2011-04-08](https://search.stillhousedata.com/proxy/0000950123-11-033987) | DEF 14A |
| [2010-03-29](https://search.stillhousedata.com/proxy/0000950123-10-029298) | DEF 14A |
| [2009-04-08](https://search.stillhousedata.com/proxy/0000950152-09-003592) | DEF 14A |
| [2008-04-14](https://search.stillhousedata.com/proxy/0000950152-08-002737) | DEF 14A |

## More

- [CIK 1385544 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1385544&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0001193125-15-099385.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.