BSTR SPAC Merger Vote: Adam Back's Bitcoin Treasury Firm Heads to Nasdaq

Here is a fact-checked breakdown of what is known, what remains uncertain, and what investors should watch for.

The Vote and Listing Mechanics

The shareholder vote is the final regulatory hurdle before the merger closes. Cantor Equity Partners I, a blank-check company that raised approximately $200 million in its IPO, entered into a Business Combination Agreement with BSTR Holdings on July 16, 2025 . The path to this vote has taken nearly a year, with multiple amended drafts of the Form S-4 filed with the SEC (in February and April 2026) as the parties worked through regulatory review .

CEPO shareholders who wish to redeem their shares for cash had a deadline of 5:00 p.m. Eastern on June 24, 2026, at a price of roughly $10.62 per share based on the trust account . The level of redemptions will determine how much of the SPAC's trust capital — up to ~$200 million before redemptions — remains available for BSTR's post-merger treasury .

The Bitcoin Treasury: Where the 30,021 BTC Comes From

BSTR's opening stack of 30,021 Bitcoin is sourced from two distinct contributions :

• 25,000 BTC contributed by founding shareholders, including entities advised by Blockstream Capital Partners, an investment manager led by Adam Back and other long-time Bitcoiners
• 5,021 BTC via an in-kind equity PIPE — described as the first PIPE in a U.S. SPAC raise funded entirely through Bitcoin contributions from long-time Bitcoin advocates often referred to as "OGs"

Multiple credible sources place BSTR as the fifth-largest publicly traded Bitcoin holder at launch, with some ranking it fourth depending on the snapshot of other corporate holdings at the time of closing .

The $1.5 Billion PIPE: Largest Ever for a Bitcoin Treasury SPAC

The up-to-$1.5 billion financing package is described as the largest PIPE ever announced alongside a Bitcoin treasury SPAC merger . It is structured across multiple tranches :

• $750 million in convertible debt
• $350 million in convertible preferred stock
• $400 million in fiat common equity

This does not include the roughly $200 million (pre-redemption) from the CEPO trust. Notably, the $1.5 billion figure is an upper bound; the actual amount could be lower depending on investor participation and market conditions.

Strategy: The 'Berkshire Hathaway of Bitcoin'

BSTR describes itself not as a passive holder but as an actively managed, leveraged Bitcoin treasury company . Its stated strategy is to build what the company calls a "Berkshire Hathaway of Bitcoin" — a structure designed to avoid forced sales of Bitcoin during market downturns, unlike many leveraged miners or trading firms.

CEO Adam Back stated in an SEC-filed communication that the company plans to acquire up to 21,000 additional Bitcoin at current prices, subject to regulatory approvals and market conditions . Multiple sources extrapolate that this would bring BSTR's total holdings to 50,000+ BTC, positioning it to challenge larger holders like MARA Holdings .

Leadership Team

Katherine Dowling's appointment as President was confirmed in an SEC filing dated May 23, 2026 . Sean Bill has been identified as Chief Investment Officer in multiple June 2026 interviews .

Timeline: From Announcement to Vote

Key Caveats and Open Questions

1. Vote outcome uncertain: The shareholder vote has not yet occurred. Approval is not guaranteed.
2. Redemption risk: If a high percentage of CEPO shareholders redeem their shares, the trust capital available to BSTR could shrink significantly.
3. Ranking dispute: Some sources call BSTR the 4th largest public Bitcoin holder; others say 5th. The exact rank depends on the snapshot of other holdings at the precise closing date.
4. PIPE cap: The $1.5 billion figure is an upper bound across multiple financing tranches and could come in lower.
5. 50,000+ BTC target: This figure is an extrapolation. Back's stated goal of "up to 21k BTC" additional is subject to regulatory approval, market conditions, and SPAC redemption levels .