SEC Filing Document

Company: Berto Acquisition Corp. II
Ticker: GUAC
CIK: 2081515
Filing Type: 424B4
Document Type: 424B4
Date Filed: 2026-05-18
Accession Number: 0001829126-26-005386
Exchange: 
SIC Code: 6770
SIC Description: Blank Checks
URL: https://www.sec.gov/Archives/edgar/data/2081515/000182912626005386/bertoacquisition2_424b4.htm

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will use our commercially reasonable efforts to file with the SEC a registration statement on Form S-1, S-3, F-1, or F-3, as applicable, for the registration under the Securities Act of the ordinary shares issuable upon exercise of the warrants, to cause the same to become effective within 60 business days following the closing of our initial business combination and to maintain the effectiveness of such registration statement, and a current prospectus relating thereto, until the warrants expire or are redeemed, as specified in the warrant agreement. If any such registration statement covering the ordinary shares issuable upon exercise of the warrants is not effective by the 60 th business day after the closing of our initial business combination, then beginning on the 61 st business day after the closing of our initial business combination and ending upon such registration statement being declared effective by the SEC, Table of Contents

and during any other period when we have failed to maintain an effective registration statement covering the ordinary shares issuable upon exercise of the public warrants, warrant holders will have the right to exercise such public warrants on a “cashless basis” in accordance with Section 3(a)(9) of the Securities Act or another exemption. Notwithstanding the above, if our ordinary shares are at the time of any exercise of a warrant not listed on a national securities exchange such that they satisfy the definition of a “covered security” under Section 18(b)(1) of the Securities Act, we may, at our option, require holders of public warrants who exercise their warrants to do so on a “cashless basis” in accordance with Section 3(a)(9) of the Securities Act and, in the event we so elect, we will not be required to file or maintain in effect such registration statement.

The warrants will expire at 5:00 p.m., New York City time, five years after the completion of our initial business combination or earlier upon redemption or our liquidation.

Redemption of public warrants for cash Once the public warrants become exercisable, we may redeem the outstanding public warrants for cash:

●	in whole and not in part;

●	at a price of $0.01 per warrant;

●	upon not less than 30 days’ prior written notice of redemption, which we refer to as the 30-day measurement period; and

●	if, and only if, the closing price of our ordinary shares equals or exceeds $18.00 per share (as adjusted for share splits, share capitalizations, reorganizations, recapitalizations and the like and for certain issuances of ordinary shares and equity-linked securities for capital raising purposes in connection with the closing of our initial business combination as described elsewhere in this prospectus) for any 20 trading days within a 30 trading-day period commencing after the warrants become exercisable and ending on the third trading day prior to the date on which we send the notice of redemption to the public warrant holders.

We will not redeem the public warrants as described above for cash unless an effective registration statement under the Securities Act covering the issuance of the ordinary shares issuable upon exercise of the public warrants and a current prospectus relating to those ordinary shares is available throughout the 30-day measurement period, except if we have elected to require the exercise of the public warrants on a cashless basis and such cashless exercise is exempt from registration under the Securities Act. If and when the public warrants become redeemable by us, we may not exercise our redemption right if the issuance of ordinary shares upon exercise of the public warrants is not exempt from registration or qualification under applicable state blue sky laws or we are unable to register or qualify the underlying securities for sale under all applicable state securities laws.

We have established the last of the redemption criteria discussed above to prevent a redemption call unless there is at the time of the call a significant premium to the public warrant exercise price. If the foregoing conditions are satisfied and we issue a notice of redemption of the public warrants, each public warrant holder will be entitled to exercise his, her or its public warrant prior to the scheduled redemption date. However, the price of the ordinary shares may fall below the $18.00 redemption trigger price (as adjusted for adjustments to the number of shares issuable upon exercise or the exercise price of a public warrant as described under the heading “— Anti-dilution Adjustments ”) as well as the public warrant exercise price after the redemption notice is issued.

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Cashless exercise If we call the public warrants for redemption as described above, our management will have the option to require all holders that wish to exercise warrants to do so on a “cashless basis.” In determining whether to require all holders to exercise their warrants on a “cashless basis,” our management will consider, among other factors, our cash position, the number of warrants that are outstanding and the dilutive effect on our shareholders of issuing the maximum number of ordinary shares issuable upon the exercise of our warrants. In such event, each holder would pay the exercise price by surrendering the warrants for that number of ordinary shares equal to the quotient obtained by dividing (x) the product of the number of ordinary shares underlying the warrants, multiplied by the excess of the “fair market value” of our ordinary shares (defined below) over the exercise price of the warrants by (y) the fair market value. The “fair market value” will mean the average closing price of the ordinary shares for the 10 trading days ending on the third trading day prior to the date on which the notice of redemption is sent to the holders of warrants. Please see “ Description of Securities — Warrants — Public Shareholders’ Warrants ” for additional information.

Founder shares In December 2025, our sponsor and sponsor affiliates paid $23,782.61 for an aggregate of 6,837,500 founder shares (up to 937,500 of which will be surrendered to us for no consideration after the closing of this offering depending on the extent to which the underwriters’ over-allotment option is exercised), and Oanh Truong and Meteora (whose managing member, Vikas Mittal, is our Executive Chairman) each paid $173.91 and $1,043.48 for an aggregate of 50,000 and 300,000 ordinary shares, respectively (none of which are subject to forfeiture in connection with the exercise of the over-allotment option), for a total of 7,187,500 ordinary shares issued for an aggregate purchase price of $25,000, or approximately $0.003 per share. Neither Ms. Truong nor the consultant is affiliated with the sponsor. The “sponsor affiliates” include Harry You, who is the founder of the company and as the managing member of the Sponsor, and Robert You, the adult son of Harry You and our Chief Financial Officer and president. Both Messrs. You directly own membership interests in our sponsor. On May 15, 2026, we capitalized $69.00 standing to the credit of the Company’s share premium account, or additional paid-in capital, and issued an additional 690,000 founder shares, increasing the total outstanding founder shares from 7,187,500 to 7,877,500 as of the date hereof as a result of the upsize in the prospectus
amount. Of these, our sponsor and sponsor affiliates hold 7,527,500 founder shares (up to 1,027,500 of which are subject to forfeiture depending on the extent to which the underwriters’ overallotment option is exercised), while the shares held by Ms. Truong and Meteora remained unchanged. Out of the total 7,527,500 founder shares held by our sponsor and sponsor affiliates, the sponsor, Harry You and Robert You each directly holds 2,779,808, 2,532,102 and 2,215,590 founder shares, respectively, each purchased at approximately $0.003 per share.

Prior to the initial investment in the company of $25,000 by our initial shareholders, we had no assets, tangible or intangible. The per share price of the founder shares was determined by dividing the amount of cash contributed to the company by the number of founder shares issued. The number of founder shares outstanding was determined based on the expectation that the total size of this offering would be a maximum of 31,510,000 units if the underwriters’ over-allotment option is exercised in full, and therefore that such founder shares would represent 20% of the outstanding shares after this offering. Up to 1,027,500 of the founder shares held by the sponsor and sponsor affiliates will be forfeited for no consideration depending on the extent to which the underwriters’ over-allotment option is not exercised.

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The founder shares are identical to the ordinary shares included in the units being sold in this offering, except that:

●	the founder shares are subject to certain transfer restrictions, as described in more detail below;

●	the founder shares are entitled to registration rights;