A reverse merger puts a private company inside an already-public one through a share swap, while an IPO sells new shares to the public through underwriters at a negotiated price. The IPO raises cash and runs on a registration statement the SEC staff reviews. The reverse merger buys a ticker, and the share swap itself may not raise a dollar. The SEC's investor bulletin says a reverse merger "often is perceived to be a quicker and cheaper method of 'going public'." Two 2026 deals put that claim to the test.
How each route works
Reverse merger. The SEC's Investor Bulletin on reverse mergers describes the deal this way. A public "shell company," meaning a reporting company with few or no operations, acquires a private operating company. The private company's shareholders "exchange their shares for a large majority of the shares of the public company." Its management usually takes over the board. The shell must report the deal on Form 8-K, and there are "no registration requirements under the Securities Act of 1933 as there would be for an IPO."
Traditional IPO. The SEC's IPO bulletin lays out the sequence:
- The company files a registration statement, typically Form S-1, with amendments filed as S-1/A.
- During the roadshow, underwriters collect "indications of interest" and recommend a price; the issuer "ultimately determines the price."
- Once the registration statement is effective, the final prospectus is filed as a 424B3 or 424B4 with the final offering price.
- Insiders typically sign lock-ups, often for 180 days.
A SPAC is a third route, in which a blank-check company raises cash in its own IPO first and merges later; Nasdaq's reverse-merger definition carves out listed SPACs, and an SEC order dated December 8, 2025 (Release 34-104344) widened that carve-out to SPACs that were previously listed.
The exchange "seasoning" rules: Nasdaq 5110(c) and NYSE 102.01F
On November 8, 2011, the SEC approved reverse-merger listing rules for both exchanges: Release 34-65708 for Nasdaq and Release 34-65709 for the NYSE.
Under Nasdaq Rule 5110(c), a company formed by a Reverse Merger can apply for initial listing only if the combined entity has met three tests:
- It has traded for at least one year in the U.S. over-the-counter market, on another national exchange or on a regulated foreign exchange. The clock starts once it has filed all required information about the deal, including audited financials.
- It has timely filed all required periodic reports for the prior year, including at least one annual report covering a full fiscal year.
- It has held the required closing price "for a sustained period of time, but in no event for less than 30 of the most recent 60 trading days." That applies both before the application and at approval.
There are two exceptions. One is a firm-commitment underwritten offering with gross proceeds of at least $40 million. The other is a company that has filed at least four annual reports after completing the one-year trading period.
Later changes: a 2017 filing (SR-NASDAQ-2017-053) replaced the original $4 price test with the share price required by whichever listing standard the company qualifies under. The NYSE's version, Listed Company Manual Section 102.01F, uses the same one-year trading period and a $4 closing price on 30 of the most recent 60 trading days. Its offering exception requires a firm-commitment offering large enough on its own to meet the Section 102.01B market-value test for IPOs.
Here is the nuance most traders miss. Nasdaq's definition of a Reverse Merger excludes "a business combination described in Rule 5110(a)," the change-of-control rule. When a listed operating company, not a shell, absorbs a private business, the deal can fall outside 5110(c). That appears to be Powerus's path: its 424B3 called for an initial listing application "to the extent required by Nasdaq Marketplace Rule 5110."
Case study A: Powerus (AGH to $PUSA)
Aureus Greenway Holdings ($AGH) was already listed on Nasdaq, and according to its 424B3 it operated two public golf country clubs in Florida. That made it an operating company, not a shell. It still filed an S-4, because that form registers the shares a company issues in a merger. The ticker changed to $PUSA effective May 15, 2026.
The timeline comes from the filings:
- March 8, 2026: merger agreement signed.
- July 29, 2026: S-4 filed.
- August 12, 2026: S-4 declared effective, per the closing 8-K.
- October 1, 2026: deal closed, 207 days after signing.
Per the 424B3, the merger was expected to be accounted for as a reverse acquisition, with Powerus as the accounting acquirer.
The closing 8-K lists what the company issued. It issued about 134.6 million shares, plus about 21.8 million replacement options and 28.6 million replacement warrants. Legacy Powerus holders ended up with about 83% of the common stock and about 93% of the voting power. By arithmetic, everyone else, AGH's pre-deal holders included, kept roughly 17%.
| $PUSA data point | Value | Source |
|---|---|---|
| Shares outstanding, October 1, 2026 | 163,838,861 | 8-K filed October 6 |
| Shares outstanding, October 15, 2026 | 168,838,861 (+5,000,000) | S-3 filed October 19 |
| FMP vendor "outstanding" figure | 21,604,683 (about 7.8x too low) | FMP pull, October 19 |
| Resale registered | 7,409,209 shares (2,359,667 outstanding + 5,049,542 from pre-funded warrants) | S-3 |
| New shelf | $250,000,000 | S-3 |
| Lock-up release | Thirds: at closing, at 90 days (December 30, 2026) and at 180 days (March 30, 2027) | 424B3; dates by arithmetic |
| Price | $3.88 at the September 30 close to $1.94 at the October 19, 2026 close (-50.0%) | FMP daily bars |
New equity money came separately, through a $3.00-per-share PIPE that closed March 10, 2026, according to the S-3. An adviser, American Ventures, holds 3,999,542 pre-funded warrants under an advisory agreement, which means it was paid in stock rather than through an underwriting spread. The auditor also changed at closing: AGH's auditor, WWC, was dismissed, and Powerus's auditor, BDO, was appointed. The same 8-K disclosed material weaknesses in AGH's internal controls as of June 30, 2026. See Powerus PUSA Stock After the Merger: The Numbers.
Case study B: EquipmentShare's IPO ($EQPT)
EquipmentShare submitted a confidential draft (DRS) on August 1, 2025 and filed its public S-1 on December 9, 2025. The registration statement went effective on January 22, 2026, and the stock first traded on January 23. That is 175 days from confidential submission to first trade, faster than Powerus's 207. The 424B4 cover table spells out the economics:
| $EQPT IPO line | Per share | Total |
|---|---|---|
| IPO price (30,500,000 shares, all sold by the company) | $24.50 | $747,250,000 |
| Underwriting discount | $1.3475 (5.5%) | $41,098,750 |
| Proceeds to company before expenses | $23.1525 | $706,151,250 |
| First-day open, January 23, 2026 | $28.50 (+16.3% vs IPO) | arithmetic: 28.50 / 24.50 - 1 |
| First-day close, January 23, 2026 | $32.56 (+32.9%) | arithmetic: 32.56 / 24.50 - 1 |
| October 19, 2026 close | $13.95 (-43.1% vs IPO; -57.2% vs first close) | arithmetic: 13.95 / 24.50 - 1; 13.95 / 32.56 - 1 |
The lock-up ran 180 days from the prospectus date, which works out to July 21, 2026. The prospectus said 220,782,894 more shares would become eligible for sale once it expired. Buyers at $24.50 also took immediate dilution of about $17.78 per share in pro forma net tangible book value.
Reverse merger vs IPO, side by side
| Factor | Reverse merger ($PUSA) | IPO ($EQPT) |
|---|---|---|
| Capital raised | None from the share swap; cash came from a $3.00 PIPE and a later $250M shelf | $706.2M to the company before expenses |
| Who sets the price | The market sets it from day one; the merger fixed only an exchange ratio (599.18229) | Issuer and underwriters, from the order book |
| Disclosure document | S-4 and 424B3, plus a closing 8-K | S-1 and 424B4 |
| Time to list | 207 days from signing to closing | 175 days from DRS to first trade |
| Underwriting cost | No spread; adviser paid in pre-funded warrants | $41,098,750 (5.5%) |
| Dilution sources | Non-Powerus holders left with about 17%; 21.8M options and 28.6M warrants; 7.4M-share resale | $17.78 per share book-value dilution; 220.8M shares freed at lock-up |
| Lock-ups | Thirds: closing, 90 days, 180 days | 180 days |
Both stocks fell sharply after listing, so neither route protects the buyer. For another reverse merger, see NextCure's reverse merger.
What traders should check after a reverse merger
- Share count from the filings. Use the latest 8-K, S-3 or 10-Q cover, not a data vendor. In Powerus's case, FMP still showed 21.6 million shares on October 19, while the S-3 said 168.8 million. An error that large skews every market-cap and short-interest ratio.
- Resale registration statements. A resale S-1 or S-3 lists exactly who can sell and how many shares, including shares from pre-funded warrants. A shelf filed alongside it means more issuance is possible.
- Auditor changes. Read 8-K Item 4.01 for disagreements and material weaknesses. One of the 2011 trading suspensions in the SEC bulletin involved a company that hid its auditor's resignation.
- Nasdaq or NYSE notices. Find out whether the company listed under 5110(a) or 5110(c). After that, watch for 8-K Item 3.01, the item a company uses to report that it has failed a continued-listing standard. Through October 19, 2026, Powerus's EDGAR filing list showed no Item 3.01 8-K since mid-2025.
- Lock-up calendar. Put the release dates from the filings on the calendar. See our IPO lock-up expiration explainer.
More IPO coverage is on our IPO page and on the I'M A STOCK TRADER homepage.
Bull/Bear Verdict
Bull Case: The comparison helps when traders read the filings. The S-4, 8-K and S-3 for a reverse merger list every share, option, warrant and lock-up tranche, and none of that costs a 5.5% underwriting spread.
Bear Case: The "faster and cheaper" label misleads. Measured by these filing dates, Powerus took longer than EquipmentShare's IPO, paid its adviser in stock, and registered shares for resale within three weeks of closing. A share-swap reverse merger skips the order-book pricing and underwriter diligence of an IPO, so the dilution math falls on the buyer.
FAQ
Is a reverse merger cheaper than an IPO?
Often in cash, not always in dilution. EquipmentShare paid underwriters $41,098,750, or 5.5% of gross proceeds. Powerus paid no spread, but holders outside Legacy Powerus were left with about 17% of the shares, and an adviser received 3,999,542 pre-funded warrants.
Does Nasdaq's one-year seasoning rule apply to every reverse merger?
No. Rule 5110(c) covers combinations with a shell company, and the definition excludes business combinations described in Rule 5110(a), Nasdaq's change-of-control rule. Powerus merged into a listed golf-club operator, and its 424B3 called for an initial listing application under Rule 5110 to the extent the rule required one. The seasoning rule also exempts firm-commitment offerings of at least $40 million and companies with four annual reports on file.
Which document shows the IPO price and underwriting fee?
The 424B4 final prospectus. Its cover table lists the price, the per-share underwriting discount and the totals. For $EQPT those were $24.50, $1.3475 and $41,098,750.