SECURITIES AND EXCHANGE COMMISSION                       
                             Washington, D.C. 20549                             
                                                                                
                                  Schedule 13G                                  
                                 (Rule 13d-102)                                 
                                                                                
 INFORMATION TO BE INCLUDED IN STATEMENTS FILEDPURSUANT TO RULES 13d-1 (b), (c) 
                                    AND (d)                                     
               AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2 (b)               
                               (Amendment No. 2)*                               
                                                                                
                                 Heliogen, Inc.                                 
                                (Name of Issuer)                                
                                                                                
                        Common Stock, par value $0.0001                         
                         (Title of Classof Securities)                          
                                                                                
                                                                                
                                   42329E105                                    
                                 (CUSIP Number)                                 
                                                                                
                                                                                
                               December 31, 2023                                
             (Date of EventWhich Requires Filing of this Statement)             
                                                                                
Check the appropriate box to designate the rule pursuant to whichthis Schedule 
is filed:


 .. Rule 13d-1(b)
                 
 .. Rule 13d-1(c)
                 
 x  Rule 13d-1(d)


*The remainder of this cover page shall be filled out for a reportingperson's 
initial filing on this form with respect to the subject class of securities, 
and for any subsequent amendment containinginformation which would alter 
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shallnot be 
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange 
Act of 1934 ("Act")or otherwise subject to the liabilities of that section of 
the Act but shall be subject to all other provisions of the Act (however,see 
the Notes).

                         (Continued on following pages)                         
                                                                                
                                  Page 1 of 11                                  
                                                                                
                            Exhibit Index on Page 10                            
                                                                                

                                                                                



                                                                                

CUSIP # 42329E105 Page 2 of 11

                                                                                


1 NAME OF REPORTING PERSONS                       NeoTribe Ventures I, L.P. ("NTV I") 
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                                 (a)
                                                                                 ¨
                                                                                   (b)
                                                                                     x
3 SEC USE ONLY                                                                        
4 CITIZENSHIP OR PLACE OF ORGANIZATION                                                
  Delaware                                                                            



       NUMBER OF        5                        SOLE VOTING POWER
        SHARES                                   0 shares.        
     BENEFICIALLY                                                 
OWNED BY EACH REPORTING                                           
        PERSON                                                    
         WITH                                                     
6                       SHARED VOTING POWER     
                        0 shares.               
7                       SOLE DISPOSITIVE POWER  
                        0 shares.               
8                       SHARED DISPOSITIVE POWER
                        0 shares.               



9  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH     0    
   REPORTING PERSON                                     
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)    .. 
   EXCLUDES CERTAIN SHARES                            
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.0% 
12 TYPE OF REPORTING PERSON                        PN   







CUSIP # 42329E105 Page 3 of 11



1 NAME OF REPORTING PERSONS                       NeoTribe Associates I, L.P. ("NTA I") 
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                                   (a)
                                                                                   ¨
                                                                                     (b)
                                                                                       x
3 SEC USE ONLY                                                                          
4 CITIZENSHIP OR PLACE OF ORGANIZATION                                                  
  Delaware                                                                              



       NUMBER OF        5                        SOLE VOTING POWER
        SHARES                                   0 shares.        
     BENEFICIALLY                                                 
OWNED BY EACH REPORTING                                           
        PERSON                                                    
         WITH                                                     
6                       SHARED VOTING POWER     
                        0 shares.               
7                       SOLE DISPOSITIVE POWER  
                        0 shares.               
8                       SHARED DISPOSITIVE POWER
                        0 shares.               



9  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH     0    
   REPORTING PERSON                                     
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)    ..   
   EXCLUDES CERTAIN SHARES                              
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.0% 
12 TYPE OF REPORTING PERSON                        PN   







CUSIP # 42329E105 Page 4 of 11



1 NAME OF REPORTING PERSONS                      NeoTribe Partners I, LLC ("NTP I") 
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                               (a)
                                                                               ¨
                                                                                 (b)
                                                                                   x
3 SEC USE ONLY                                                                      
4 CITIZENSHIP OR PLACE OF ORGANIZATION                                              
  Delaware                                                                          



       NUMBER OF        5                        SOLE VOTING POWER
        SHARES                                   0 shares.        
     BENEFICIALLY                                                 
OWNED BY EACH REPORTING                                           
        PERSON                                                    
         WITH                                                     
6                       SHARED VOTING POWER     
                        0 shares.               
7                       SOLE DISPOSITIVE POWER  
                        0 shares.               
8                       SHARED DISPOSITIVE POWER
                        0 shares.               



9  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH     0    
   REPORTING PERSON                                     
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)    ..   
   EXCLUDES CERTAIN SHARES                              
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.0% 
12 TYPE OF REPORTING PERSON                        OO







CUSIP # 42329E105 Page 5 of 11



1 NAME OF REPORTING PERSONS                      Krishna Kolluri ("Kolluri") 
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                        (a)
                                                                        ¨
                                                                          (b)
                                                                            x
3 SEC USE ONLY                                                               
4 CITIZENSHIP OR PLACE OF ORGANIZATION                                       
  United States                                                              



       NUMBER OF        5                        SOLE VOTING POWER
        SHARES                                   0 shares.        
     BENEFICIALLY                                                 
OWNED BY EACH REPORTING                                           
        PERSON                                                    
         WITH                                                     
6                       SHARED VOTING POWER     
                        0 shares.               
7                       SOLE DISPOSITIVE POWER  
                        0 shares.               
8                       SHARED DISPOSITIVE POWER
                        0 shares.               



9  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH     0    
   REPORTING PERSON                                     
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)    ..   
   EXCLUDES CERTAIN SHARES                              
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.0% 
12 TYPE OF REPORTING PERSON                        IN   







CUSIP # 42329E105 Page 6 of 11



ITEM 1(A). NAME OF ISSUER


Heliogen, Inc. (the "Issuer")


ITEM 1(B). ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES


130 W Union St.
Pasadena, CA 91103


ITEM 2(A). NAME OF PERSONS FILING


This Schedule is filed byNeoTribe Ventures I, L.P., a Delaware limited 
partnership ("NTV I"), NeoTribe Associates I, L.P., a Delaware limited 
partnership("NTA I"), NeoTribe Partners I, LLC, a Delaware limited liability 
company ("NTP I"), and Krishna Kolluri ("Kolluri").The foregoing entities and 
individuals are collectively referred to as the "Reporting Persons."


ITEM 2(B). ADDRESS OF PRINCIPAL OFFICE


The address for each of the Reporting Persons is:

c/o NeoTribe Management Company, LLC
2440 Sand Hill Rd, Suite 302
Menlo Park, CA 94025


ITEM 2(C). CITIZENSHIP


See Row 4 of cover page foreach Reporting Person.


ITEM 2(D). TITLE OF CLASS OF SECURITIES


Common Stock, par value $0.0001


ITEM 2(E) CUSIP NUMBER


42329E105


ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO RULE 13D-1(B), OR 13D-2(B) OR (C), CHECK WHETHER THE PERSON FILING IS A
        :                                                                                                             


Not applicable.


ITEM 4. OWNERSHIP


The following information with respect tothe ownership of the Common Stock of 
the Issuer by the persons filing this Statement is provided as of December 31, 
2023:






CUSIP # 42329E105 Page 7 of 11



 (a) Amount beneficially owned                         
     :                                                 
                                                       
     See Row 9 of cover page for each Reporting Person.



 (b) Percent of Class                                   
     :                                                  
                                                        
     See Row 11 of cover page for each Reporting Person.



 (c) Number of shares as to which such person has
     :                                           



 (i) Sole power to vote or to direct the vote          
     :                                                 
                                                       
     See Row 5 of cover page for each Reporting Person.



 (ii) Shared power to vote or to direct the vote        
      :                                                 
                                                        
      See Row 6 of cover page for each Reporting Person.



 (iii) Sole power to dispose or to direct the disposition of
       :                                                    
                                                            
       See Row 7 of cover page for each Reporting Person.   



 (iv) Shared power to dispose or to direct the disposition of
      :                                                      
                                                             
      See Row 8 of cover page for each Reporting Person.     



ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS


If this Statement is beingfiled to report the fact that as of the date hereof 
each Reporting Person has ceased to be the beneficial owner of more than five 
percentof the class of securities, check the following:
x


ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON
        .                                                              


Under certain circumstancesset forth in the limited partnership agreements of 
NTV I and NTA I and the limited liability company agreement of NTP I, the 
partnersor members, as the case may be, of each of such entities may be deemed 
to have the right to receive dividends from, or the proceeds fromthe sale of, 
shares of the Issuer directly or indirectly owned by each such entity of which 
they are a partner or member.


ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED
        THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY      


Not applicable.


ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP
        .                                                        


Not applicable.


ITEM 9. NOTICE OF DISSOLUTION OF GROUP
        .                             


Not applicable.






CUSIP # 42329E105 Page 8 of 11



ITEM 10. CERTIFICATION
         .            


Not applicable.






CUSIP # 42329E105 Page 9 of 11


                                   SIGNATURES                                   
                                                                                
After reasonable inquiry and to the best of my knowledgeand belief, I certify 
that the information set forth in this statement is true, complete and correct.


Date: February 12, 2024


 NEOTRIBE VENTURES I, L.P.      
                                
 By:    NEOTRIBE PARTNERS I, LLC
 Its:   General Partner         
                                
 By:    /s/ Krishna Kolluri     
 Name:  Krishna Kolluri         
 Title: Managing Member         
                                
 NEOTRIBE ASSOCIATES I, L.P.    
                                
 By:    NEOTRIBE PARTNERS I, LLC
 Its:   General Partner         
                                
 By:    /s/ Krishna Kolluri     
 Name:  Krishna Kolluri         
 Title: Managing Member         
                                
 NEOTRIBE PARTNERS I, LLC       
                                
 By:    /s/ Krishna Kolluri     
 Name:  Krishna Kolluri         
 Title: Managing Member         
                                
 KRISHNA KOLLURI                
                                
 By:    /s/ Krishna Kolluri     
 Name:  Krishna Kolluri         






CUSIP # 42329E105 Page 10 of 11


                                 EXHIBIT INDEX                                  
                                                                                

                                        Found on   
                                       Sequentially
Exhibit                               Numbered Page
                                                   
Exhibit A:  Agreement of Joint Filing      11      








CUSIP # 42329E105 Page 11 of 11



                                   exhibit A                                    
                                                                                
                           Agreement of Joint Filing                            
                                                                                
The Reporting Persons herebyagree that a single Schedule 13G (or any amendment 
thereto) relating to the Common Stock of the Issuer shall be filed on behalf 
of eachof the Reporting Persons. Note that a copy of the applicable Agreement 
of Joint Filing is already on file with the appropriate agencies.