1 unchanged sentence
Market Information
−Removed: Our common stock trades on The Nasdaq Capital
−Removed: Market under the symbol “ALTO.” We also have non-voting common stock outstanding, which is convertible into our voting common
−Removed: stock, and which is not listed on an exchange.
+Added: Our common stock trades on The Nasdaq Capital Market
+Added: under the symbol “ALTO.” We also have non-voting common stock outstanding, which is convertible into our voting common stock,
+Added: and which is not listed on an exchange.
Security Holders
−Removed: As of March 12, 2025, we had 76,611,090 shares
−Removed: of common stock outstanding held of record by approximately 305 stockholders and 896 shares of non-voting common stock outstanding held
+Added: As of March 12, 2026, we had 77,292,548 shares of
+Added: common stock outstanding held of record by approximately 280 stockholders and 896 shares of non-voting common stock outstanding held
of record by one stockholder.
11 unchanged sentences
in the foreseeable future.
−Removed: Stockholder returns over the indicated periods should not be considered indicative of future stock prices
−Removed: or stockholder returns.
+Added: Stockholder returns over the indicated periods should not be considered indicative of future stock prices or
+Added: stockholder returns.
This graph assumes that the value of the investment in our common stock and each of the comparison groups was $100
9 unchanged sentences
Our current and future debt financing arrangements
−Removed: may limit or prevent cash distributions from our subsidiaries to us, depending upon the achievement of specified financial and other
−Removed: operating conditions and our ability to properly service our debt, thereby limiting or preventing us from paying cash dividends.
−Removed: the holders of our outstanding Series B Preferred Stock are entitled to dividends of 7% per annum, payable quarterly in arrears.
−Removed: and unpaid dividends in respect of our Series B Preferred Stock must be paid prior to the payment of any dividends in respect of shares
−Removed: of our common stock.
−Removed: For 2024, 2023 and 2022, we declared and paid
−Removed: cash dividends on our outstanding shares of Series B Preferred Stock as they became due.
+Added: may limit or prevent cash distributions from our subsidiaries to us, depending upon the achievement of specified financial and other operating
+Added: conditions and our ability to properly service our debt, thereby limiting or preventing us from paying cash dividends.
+Added: Further, the holders
+Added: of our outstanding Series B Preferred Stock are entitled to dividends of 7% per annum, payable quarterly in arrears.
+Added: Accrued and unpaid
+Added: dividends in respect of our Series B Preferred Stock must be paid prior to the payment of any dividends in respect of shares of our common
+Added: For 2025, 2024 and 2023, we declared and paid cash
+Added: dividends on our outstanding shares of Series B Preferred Stock as they became due.
Recent Sales of Unregistered Securities
3 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.