Form 8-K12B successor issuer notifications under Section 12(b)
Form 8-K12B: a Form 8-K a successor issuer files to notify that its securities are deemed registered under Section 12(b) under Rule 12g-3.
curl -H "Authorization: Bearer $SECFEED_KEY" \ "https://secfeedapi.com/v1/filings?query=formType:%228-K12B%22&size=2"
import os, requests
r = requests.get(
"https://secfeedapi.com/v1/filings",
params={'query': 'formType:"8-K12B"', 'size': '2'},
headers={"Authorization": f"Bearer {os.environ['SECFEED_KEY']}"},
)
print(r.json())What is 8-K12B?
When a company succeeds to a registered issuer, for example in a holding company reorganization, a redomiciling merger or some SPAC structures, Rule 12g-3 lets the successor's securities be deemed registered without a new registration statement. The successor reports the succession on Form 8-K, which EDGAR tags 8-K12B when the class is registered under Section 12(b).
8-K12B filings are a clean way to spot reincorporations and holding company reorganizations among exchange listed companies.
Successor issuers whose securities are deemed registered under Section 12(b) through Rule 12g-3.
Generally within four business days of the succession, like other 8-K events.
Filings per year
Every 8-K12B filing on EDGAR, counted from the SecFeed index, amendments included. Updated daily.
What is inside
| Section | Contents |
|---|---|
| Succession description | The transaction that created the successor. |
| Securities | The class deemed registered and its exchange. |
| Exhibits | Merger agreements, charters and bylaws of the successor. |
Get 8-K12B data with SecFeed
Search the filings with formType:"8-K12B", read any document as text or PDF, and use these APIs for structured data:
Search every SEC EDGAR filing since 1993 with Lucene-style queries over ticker, CIK, form type, filing date, company, SIC and 8-K items.
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Latest 8-K12B filings
| Company | Form | Filed | |
|---|---|---|---|
| WISeQey Corp. | 8-K12B | 2026-10-02 | EDGAR ↗ |
| Wisekey International Holding S.A. | 8-K12B | 2026-10-02 | EDGAR ↗ |
| ONEOK INC /NEW/ | 8-K12B | 2026-09-10 | EDGAR ↗ |
| Xtend AI Robotics, Inc. | 8-K12B | 2026-09-03 | EDGAR ↗ |
| Real REMAX Group Inc. | 8-K12B | 2026-08-24 | EDGAR ↗ |
| ZeroStack Corp. | 8-K12B | 2026-08-18 | EDGAR ↗ |
| Wave Life Sciences, Inc. | 8-K12B | 2026-08-07 | EDGAR ↗ |
| Granite Ridge Resources, Inc. | 8-K12B | 2026-08-06 | EDGAR ↗ |
Use cases
- Detect holding company reorganizations and redomiciles
- Keep CIK and ticker mappings right when a successor takes over
Related forms
Every Form 8-K current report since 1993, classified by item: earnings, acquisitions, auditor changes, executive departures, cyber incidents and more.
8-K12G3Successor registration, 12(g)Form 8-K12G3: a Form 8-K a successor issuer files when its securities are deemed registered under Section 12(g) by Rule 12g-3.
8-A12BExchange listing registrationForm 8-A12B: short form registrations of a class of securities under Exchange Act Section 12(b), filed when securities list on an exchange.
FAQ
When is an 8-K12B filed?
When a successor issuer's securities are deemed registered under Section 12(b) under Rule 12g-3, for example after a holding company reorganization.
How is it different from 8-K12G3?
8-K12B is for classes registered under Section 12(b) (exchange listed); 8-K12G3 is for Section 12(g).
Every 8-K12B filing, one API call away
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