Vogenx, Inc.

Unregistered Sales of Equity Securities

None.

Use of Proceeds

In August 2026, we completed the IPO, pursuant to which we issued and sold 7,187,500 shares of our common stock at a public offering price of $13.00 per share, including 937,500 additional shares of our common stock pursuant to the exercise in full by the underwriter of its option to purchase shares of common stock from us at the IPO price. The offer and sale of all of the shares of our common stock in the IPO were registered under the Securities Act pursuant to our Registration Statement on Form S-1, as amended (File No. 333-297487), which was declared effective by the SEC on August 11, 2026. JonesTrading Institutional Services LLC acted as the sole book-running manager of the IPO. Shares of our common stock began trading on The Nasdaq Capital Market under the symbol “VOGX” on August 12, 2026.

We received gross proceeds from the IPO of approximately $93.4 million, which resulted in net proceeds of approximately $84.9 million, after deducting underwriting discounts and commissions and other offering expenses payable by us. None of the underwriting discounts and commissions or other offering expenses were incurred or paid, directly or indirectly, to any of our directors or officers or their associates or to persons owning 10% or more of our common stock or to any of our affiliates.

There has been no material change in the expected use of the net proceeds from the IPO as described in the Prospectus that forms a part of our Registration Statement, which was filed with the SEC on August 12, 2026 pursuant to Rule 424(b)(4).

Issuer Repurchases of Equity Securities

None.