Insights
Where to Find a List of De-SPAC Stocks
Alphanume Team · May 29, 2026
A structured, point-in-time record of completed de-SPAC transactions, parsed from SEC filings by Alphanume.
Companies that went public through a SPAC merger, the so-called de-SPACs, are a well-documented category of post-merger underperformers. The problem for anyone who wants to study or trade them is simply identifying which companies they are. There is no clean ticker tag for "this used to be a SPAC," and tracking completions across news and SEC filings by hand is slow and incomplete.
Alphanume maintains that list as the De-SPAC Events dataset.
What the dataset is
The De-SPAC Events dataset is a point-in-time record of completed de-SPAC transactions, where a SPAC becomes an operating company. The events are parsed from SEC filings, typically the Super 8-K filed on completion, and recorded on the completion-disclosure filing date. Historical records are never altered, so the dataset is a faithful log of when each company actually became a de-SPAC.
Fields
- date: the completion-disclosure filing date
- ticker: the resulting operating-company symbol
- filing_url: a direct link to the source filing
What you can do with it
- Identify newly public ex-SPAC companies as they complete.
- Run event-driven, post-merger strategies on a known cohort.
- Study structural inefficiencies and liquidity or float regimes around de-SPACs.
- Build mean-reversion or short-biased strategies on the de-SPAC universe.
How to access it
The dataset is on the free tier as a rolling 30-day delayed window. One call returns recent completions:
curl "https://api.alphanume.com/v1/de-spac-events?api_key=alp_your_key"Grab a free Alphanume API key, read the API documentation, or explore it on Alphanume to browse recent events.
Related
Combine de-SPAC data with Stock Dilution and Historical Market Cap to build a richer corporate-action short universe.
Why identifying de-SPACs is the hard part
The trade thesis on de-SPACs is well known: PIPE investors sell after lock-up, warrant holders exercise and sell, high redemptions leave thin cash, and many targets were priced in a frothy SPAC market. The hard part is simply knowing which companies they are, because there is no clean ticker tag and completions are scattered across news and SEC filings.
Alphanume parses the completion disclosures, typically the Super 8-K, and records each de-SPAC on its filing date with a link back to the source. Because the records are never altered, you get a faithful log of when each company actually became a de-SPAC, which is the universe you need before any post-merger study or strategy.
Frequently asked questions
What is a de-SPAC?
A company that went public by merging with a special purpose acquisition company. The merger turns the SPAC into an operating company, and that completion is the event this dataset records.
Where does the data come from?
It is parsed from SEC filings, typically the Super 8-K filed on completion, and recorded on the completion-disclosure filing date.
What fields does it provide?
Each row carries date (the completion-disclosure filing date), ticker (the resulting operating company), and filing_url (a link to the source filing).
Why trade de-SPACs?
They are a well-documented category of post-merger underperformers, with structural selling pressure around lock-up expirations and warrant exercise windows.
Is it free?
Yes, on the free tier as a rolling 30-day delayed window. Pro raises the rate limit to 600 requests per minute.