Company: RAIN
Filing Date: 2025-02-12
Form Type: 424B3
Source: 0001213900-25-012904
Chunk: 92

Company: Rain Enhancement Technologies Holdco, Inc.
Filing Date: 2025-02-12
Form: 424B3
Chunk 92
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 the        
 extension.                                                                                        |

| (2) | Reflects                                                                                                                                
 the interest income of $0.2 million earned related to the Trust Account subsequent to September 30, 2024 through Closing date and       
 an adjustment to accumulated deficit with a corresponding increase in Class A ordinary shares subject to possible redemption to reflect 
 accretion to remeasure the Public Shares subject to redemption amount.                                                                  |

| (3) | To                                                                                                                                     
 reflect the total redemption payment of approximately $12.1 million out of the Trust Account with respect to 1,063,698 Coliseum Public 
 Shares prior to Closing in connection with the Extension Meeting and the Business Combination Meeting in December 2024 as discussed    
 in the section titled “Introduction” above. After redemptions, there was a total of 723,414 Public Shares and an aggregate             
 of approximately $8.25 million remaining in Trust Account.                                                                             |

| (4) | Reflects                                                                                                                           
 the liquidation and reclassification of cash and investments held in the Trust Account that became available for general corporate 
 use following the Business Combination.                                                                                            |

| (5) | Reflects                                                                                                                          
 the transfer of the remaining 723,414 Coliseum Class A Ordinary Shares subject to possible redemptions to permanent equity, which 
 was then converted into Class A Common Stock on a one-for-one basis.                                                              |

| (6) | Reflects                                                                                                  
 the conversion of 3,750,000 Founder Shares into Class A Common Stock upon Closing on a one-for-one basis. |

| (7) | Reflects                                                                                                                               
 conversion of 1,232 shares of RET Preferred Stock and 250 shares of RET Class A Common Stock into 2,125,539 shares of Class A Common   
 Stock and 40 shares of RET Class B Common Stock into 57,752 shares of Class B Common Stock based on an Exchange Ratio of approximately 
 1,434.                                                                                                                                 |

<div align='center'>50

NOTES TO UNAUDITED PRO FORMA COMBINED FINANCIAL STATEMENTS</div>

| (8) | Represents                                                                                                                               
 cash transaction costs incurred of approximately $6.7 million for Coliseum and approximately $1.3 million for RET, totaling $8.0         
 million. Of the $8.0 million total transaction costs, (1) approximately $2.3 million and approximately $608,000 of transaction costs     
 was accrued as of the date of the unaudited pro forma combined balance sheets for