Filing Details

Accession Number:
0001123292-23-000079
Form Type:
13D Filing
Publication Date:
2023-06-14 20:00:00
Filed By:
Prime Movers Lab Fund I Lp
Company:
Heliogen Inc.
Filing Date:
2023-06-15
SEC Url:
13D Filing
Ownership Summary

Please notice the below summary table is generated without human intervention and may contain errors. Please refer to the complete filing displayed below for exact figures.

Name Sole Voting Power Shared Voting Power Sole Dispositive Power Shared Dispositive Power Aggregate Amount Owned Power Percent of Class
Prime Movers Lab Fund I 10,477,320 10,477,320 5.3%
Prime Movers Lab GP I 10,477,320 10,477,320 5.3%
Heliogen PML SPV 6,668,457 6,668,457 3.4%
Prime Movers Lab Fund II 6,668,457 6,668,457 - 0 - 14 TYPE OF REPORTING PERSON PN CUSIP NO. 42329E105 1 NAME OF REPORTING PERSON Prime Movers Lab GP II LLC 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) (b) 3 SEC USE ONLY 4 SOURCE OF FUNDS AF 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e) 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF 7 SOLE VOTING POWER SHARES BENEFICIALLY - 0 - OWNED BY 8 SHARED VOTING POWER EACH REPORTING 6,668,457 PERSON WITH 9 SOLE DISPOSITIVE POWER - 0 - 10 SHARED DISPOSITIVE POWER 6,668,457 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,668,457 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.4%
Prime Movers Lab GP II 17,145,777 17,145,777 - 0 - 14 TYPE OF REPORTING PERSON PN CUSIP NO. 42329E105 1 NAME OF REPORTING PERSON Prime Movers Lab GP III LLC 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) (b) 3 SEC USE ONLY 4 SOURCE OF FUNDS AF 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e) 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF 7 SOLE VOTING POWER SHARES BENEFICIALLY - 0 - OWNED BY 8 SHARED VOTING POWER EACH REPORTING - 0 - PERSON WITH 9 SOLE DISPOSITIVE POWER - 0 - 10 SHARED DISPOSITIVE POWER - 0 - 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON - 0 - 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) - 0 - 14 TYPE OF REPORTING PERSON OO CUSIP NO. 42329E105 1 NAME OF REPORTING PERSON Prime Movers Lab LLC 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) (b) 3 SEC USE ONLY 4 SOURCE OF FUNDS AF 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e) 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF 7 SOLE VOTING POWER SHARES BENEFICIALLY - 0 - OWNED BY 8 SHARED VOTING POWER EACH REPORTING - 0 - PERSON WITH 9 SOLE DISPOSITIVE POWER - 0 - 10 SHARED DISPOSITIVE POWER - 0 - 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON - 0 - 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) - 0 - 14 TYPE OF REPORTING PERSON OO CUSIP NO. 42329E105 1 NAME OF REPORTING PERSON Dakin Sloss 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) (b) 3 SEC USE ONLY 4 SOURCE OF FUNDS AF 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e) 6 CITIZENSHIP OR PLACE OF ORGANIZATION United States NUMBER OF 7 SOLE VOTING POWER SHARES BENEFICIALLY - 0 - OWNED BY 8 SHARED VOTING POWER EACH REPORTING 17,145,777 PERSON WITH 9 SOLE DISPOSITIVE POWER - 0 - 10 SHARED DISPOSITIVE POWER 17,145,777 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 17,145,777 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 8.6%
Prime Movers Lab Fund III
Prime Movers Lab GP III
Prime Movers Lab
Dakin Sloss
Filing



UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549



SCHEDULE 13D
(Rule 13d-101)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
TO § 240.13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO
§ 240.13d-2(a)
(Amendment No. 2)*


Heliogen, Inc.
(Name of Issuer)
 

Common Stock, par value $0.0001 per share
(Title of Class of Securities)
 

 
42329E105
(CUSIP Number)


TAYLOR FRANKEL
c/o PRIME MOVERS LAB
P.O. Box 12829
Jackson, Wyoming 83002
(307) 203-5036
(Name, Address and Telephone Number of Person
Authorized to Receive Notices and Communications)


June 8, 2023
(Date of Event Which Requires Filing of this Statement)


If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box .

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See § 240.13d-7 for other parties to whom copies are to be sent.
 
The information required on the remainder of this cover page shall not 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).
CUSIP NO.
42329E105

 
 

 
1
 
NAME OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
Prime Movers Lab Fund I LP
 
 
2
 
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) ☒
 
 
 
 
(b) ☐
 
 
 
 
 
 
 
3
 
SEC USE ONLY
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
4
 
SOURCE OF FUNDS
 
 
 
 
 
 
 
 
 
 
WC
 
 
5
 
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 
 
 
 
 
 
 
 
 
 
 
 
6
 
CITIZENSHIP OR PLACE OF ORGANIZATION
 
 
 
 
 
 
 
 
 
 
Delaware
 
NUMBER OF
 
7
 
SOLE VOTING POWER
 
SHARES
 
 
 
 
 
BENEFICIALLY
 
 
 
 
- 0 -
 
OWNED BY
 
8
 
SHARED VOTING POWER
 
EACH
 
 
 
 
 
REPORTING
 
 
 
 
10,477,320
 
PERSON WITH
 
9
 
SOLE DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
 
10
 
SHARED DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
10,477,320
 
 
11
 
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
10,477,320
 
 
12
 
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 
 
 
 
 
 
 
 
 
 
 
 
13
 
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
 
 
 
 
 
 
 
 
 
5.3% (1)
 
 
14
 
TYPE OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
PN
 


1 The percentages used herein and in the rest of this Schedule 13D calculated based on 198,420,111 shares of common stock outstanding as of June 7, 2023, as reported in the Issuer’s Registration Statement on Form S-3/A filed with the Securities and Exchange Commission on June 9, 2023.


CUSIP NO.
42329E105

 
 

 
1
 
NAME OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
Prime Movers Lab GP I LLC
 
 
2
 
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) ☒
 
 
 
 
(b) ☐
 
 
 
 
 
 
 
3
 
SEC USE ONLY
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
4
 
SOURCE OF FUNDS
 
 
 
 
 
 
 
 
 
 
AF
 
 
5
 
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 
 
 
 
 
 
 
 
 
 
 
 
6
 
CITIZENSHIP OR PLACE OF ORGANIZATION
 
 
 
 
 
 
 
 
 
 
Delaware
 
NUMBER OF
 
7
 
SOLE VOTING POWER
 
SHARES
 
 
 
 
 
BENEFICIALLY
 
 
 
 
- 0 -
 
OWNED BY
 
8
 
SHARED VOTING POWER
 
EACH
 
 
 
 
 
REPORTING
 
 
 
 
10,477,320
 
PERSON WITH
 
9
 
SOLE DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
 
10
 
SHARED DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
10,477,320
 
 
11
 
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
10,477,320
 
 
12
 
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 
 
 
 
 
 
 
 
 
 
 
 
13
 
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
 
 
 
 
 
 
 
 
 
5.3%
 
 
14
 
TYPE OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
OO
 


CUSIP NO.
42329E105

 
 

 
1
 
NAME OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
Heliogen PML SPV 1 LP
 
 
2
 
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) ☒
 
 
 
 
(b) ☐
 
 
 
 
 
 
 
3
 
SEC USE ONLY
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
4
 
SOURCE OF FUNDS
 
 
 
 
 
 
 
 
 
 
WC
 
 
5
 
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 
 
 
 
 
 
 
 
 
 
 
 
6
 
CITIZENSHIP OR PLACE OF ORGANIZATION
 
 
 
 
 
 
 
 
 
 
Delaware
 
NUMBER OF
 
7
 
SOLE VOTING POWER
 
SHARES
 
 
 
 
 
BENEFICIALLY
 
 
 
 
- 0 -
 
OWNED BY
 
8
 
SHARED VOTING POWER
 
EACH
 
 
 
 
 
REPORTING
 
 
 
 
6,668,457
 
PERSON WITH
 
9
 
SOLE DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
 
10
 
SHARED DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
6,668,457
 
 
11
 
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
6,668,457
 
 
12
 
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 
 
 
 
 
 
 
 
 
 
 
 
13
 
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
 
 
 
 
 
 
 
 
 
3.4%
 
 
14
 
TYPE OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
PN
 


CUSIP NO.
42329E105

 
 

 
1
 
NAME OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
Prime Movers Lab Fund II LP
 
 
2
 
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) ☒
 
 
 
 
(b) ☐
 
 
 
 
 
 
 
3
 
SEC USE ONLY
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
4
 
SOURCE OF FUNDS
 
 
 
 
 
 
 
 
 
 
WC
 
 
5
 
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 
 
 
 
 
 
 
 
 
 
 
 
6
 
CITIZENSHIP OR PLACE OF ORGANIZATION
 
 
 
 
 
 
 
 
 
 
Delaware
 
NUMBER OF
 
7
 
SOLE VOTING POWER
 
SHARES
 
 
 
 
 
BENEFICIALLY
 
 
 
 
- 0 -
 
OWNED BY
 
8
 
SHARED VOTING POWER
 
EACH
 
 
 
 
 
REPORTING
 
 
 
 
- 0 -
 
PERSON WITH
 
9
 
SOLE DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
 
10
 
SHARED DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
11
 
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
12
 
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 
 
 
 
 
 
 
 
 
 
 
 
13
 
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
14
 
TYPE OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
PN
 


CUSIP NO.
42329E105

 
 

 
1
 
NAME OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
Prime Movers Lab GP II LLC
 
 
2
 
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) ☒
 
 
 
 
(b) ☐
 
 
 
 
 
 
 
3
 
SEC USE ONLY
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
4
 
SOURCE OF FUNDS
 
 
 
 
 
 
 
 
 
 
AF
 
 
5
 
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 
 
 
 
 
 
 
 
 
 
 
 
6
 
CITIZENSHIP OR PLACE OF ORGANIZATION
 
 
 
 
 
 
 
 
 
 
Delaware
 
NUMBER OF
 
7
 
SOLE VOTING POWER
 
SHARES
 
 
 
 
 
BENEFICIALLY
 
 
 
 
- 0 -
 
OWNED BY
 
8
 
SHARED VOTING POWER
 
EACH
 
 
 
 
 
REPORTING
 
 
 
 
6,668,457
 
PERSON WITH
 
9
 
SOLE DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
 
10
 
SHARED DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
6,668,457
 
 
11
 
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
6,668,457
 
 
12
 
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 
 
 
 
 
 
 
 
 
 
 
 
13
 
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
 
 
 
 
 
 
 
 
 
3.4%
 
 
14
 
TYPE OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
OO
 


CUSIP NO.
42329E105

 
 

 
1
 
NAME OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
Prime Movers Lab Fund III LP
 
 
2
 
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) ☒
 
 
 
 
(b) ☐
 
 
 
 
 
 
 
3
 
SEC USE ONLY
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
4
 
SOURCE OF FUNDS
 
 
 
 
 
 
 
 
 
 
AF
 
 
5
 
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 
 
 
 
 
 
 
 
 
 
 
 
6
 
CITIZENSHIP OR PLACE OF ORGANIZATION
 
 
 
 
 
 
 
 
 
 
Delaware
 
NUMBER OF
 
7
 
SOLE VOTING POWER
 
SHARES
 
 
 
 
 
BENEFICIALLY
 
 
 
 
- 0 -
 
OWNED BY
 
8
 
SHARED VOTING POWER
 
EACH
 
 
 
 
 
REPORTING
 
 
 
 
- 0 -
 
PERSON WITH
 
9
 
SOLE DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
 
10
 
SHARED DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
11
 
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
12
 
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 
 
 
 
 
 
 
 
 
 
 
 
13
 
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
14
 
TYPE OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
PN
 


CUSIP NO.
42329E105

 
 

 
1
 
NAME OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
Prime Movers Lab GP III LLC
 
 
2
 
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) ☒
 
 
 
 
(b) ☐
 
 
 
 
 
 
 
3
 
SEC USE ONLY
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
4
 
SOURCE OF FUNDS
 
 
 
 
 
 
 
 
 
 
AF
 
 
5
 
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 
 
 
 
 
 
 
 
 
 
 
 
6
 
CITIZENSHIP OR PLACE OF ORGANIZATION
 
 
 
 
 
 
 
 
 
 
Delaware
 
NUMBER OF
 
7
 
SOLE VOTING POWER
 
SHARES
 
 
 
 
 
BENEFICIALLY
 
 
 
 
- 0 -
 
OWNED BY
 
8
 
SHARED VOTING POWER
 
EACH
 
 
 
 
 
REPORTING
 
 
 
 
- 0 -
 
PERSON WITH
 
9
 
SOLE DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
 
10
 
SHARED DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
11
 
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
12
 
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 
 
 
 
 
 
 
 
 
 
 
 
13
 
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
14
 
TYPE OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
OO
 


CUSIP NO.
42329E105

 
 

 
1
 
NAME OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
Prime Movers Lab LLC
 
 
2
 
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) ☒
 
 
 
 
(b) ☐
 
 
 
 
 
 
 
3
 
SEC USE ONLY
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
4
 
SOURCE OF FUNDS
 
 
 
 
 
 
 
 
 
 
AF
 
 
5
 
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 
 
 
 
 
 
 
 
 
 
 
 
6
 
CITIZENSHIP OR PLACE OF ORGANIZATION
 
 
 
 
 
 
 
 
 
 
Delaware
 
NUMBER OF
 
7
 
SOLE VOTING POWER
 
SHARES
 
 
 
 
 
BENEFICIALLY
 
 
 
 
- 0 -
 
OWNED BY
 
8
 
SHARED VOTING POWER
 
EACH
 
 
 
 
 
REPORTING
 
 
 
 
- 0 -
 
PERSON WITH
 
9
 
SOLE DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
 
10
 
SHARED DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
11
 
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
12
 
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 
 
 
 
 
 
 
 
 
 
 
 
13
 
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
14
 
TYPE OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
OO
 


CUSIP NO.
42329E105

 
 

 
1
 
NAME OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
Dakin Sloss
 
 
2
 
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) ☒
 
 
 
 
(b) ☐
 
 
 
 
 
 
 
3
 
SEC USE ONLY
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
4
 
SOURCE OF FUNDS
 
 
 
 
 
 
 
 
 
 
AF
 
 
5
 
CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e)
 
 
 
 
 
 
 
 
 
 
 
 
6
 
CITIZENSHIP OR PLACE OF ORGANIZATION
 
 
 
 
 
 
 
 
 
 
United States
 
NUMBER OF
 
7
 
SOLE VOTING POWER
 
SHARES
 
 
 
 
 
BENEFICIALLY
 
 
 
 
- 0 -
 
OWNED BY
 
8
 
SHARED VOTING POWER
 
EACH
 
 
 
 
 
REPORTING
 
 
 
 
17,145,777
 
PERSON WITH
 
9
 
SOLE DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
- 0 -
 
 
 
10
 
SHARED DISPOSITIVE POWER
 
 
 
 
 
 
 
 
 
 
 
 
17,145,777
 
 
11
 
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
17,145,777
 
 
12
 
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
 
 
 
 
 
 
 
 
 
 
 
 
13
 
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
 
 
 
 
 
 
 
 
 
 
8.6%
 
 
14
 
TYPE OF REPORTING PERSON
 
 
 
 
 
 
 
 
 
 
IN
 

EXPLANATORY NOTE

This Amendment No. 2 (this “Amendment No. 2”) to the Statement on Schedule 13D (as amended, the “Statement”) is being filed with the Securities and Exchange Commission (the “Commission”) relating to the common stock, par value $.0001 per share of Heliogen, Inc., a corporation organized under the laws of the state of Delaware (the “Issuer”). This Amendment amends and supplements the Statement originally filed on February 13, 2023 with the Commission. Unless otherwise defined herein, capitalized terms used herein shall have the meanings ascribed thereto in the Statement. Except as otherwise provided herein, each Item of the Schedule 13D remains unchanged.

Item 5.
Interest in Securities of the Issuer.

Items 4(a) – (b)  are hereby amended to reflect the responses to Item 5 on each cover page.
 
As a result of the Proposal, the Reporting Persons may be deemed to have formed a “group,” within the meaning of Section 13(d)(3) of the Exchange Act, and Rule 13d-5(b)(1) thereunder, with William Gross, Idealab, a California corporation (“Idealab”), Idealab Holdings, LLC, a Delaware corporation (“Idealab Holdings”), and CRI (collectively, “Idealab”). Accordingly, the “group” may be deemed to beneficially own (and may be deemed to have shared voting and dispositive power over) an aggregate of 41,089,699 shares of Common Stock (including 5,360,329 shares issuable for vested and exercisable options within 60 days of June 9, 2023 beneficially held by Mr. Gross and with respect to which Mr. Gross has sole voting and dispositive power), representing approximately 20.7% of the outstanding shares of Common Stock as of June 7, 2023, reported as 198,420,111 shares in the Issuer’s Registration Statement on Form S-3/A filed with the Securities and Exchange Commission on June 9, 2023. The number of shares of Common Stock that may be beneficially owned by the group is based solely on the Schedule 13D/A filed by Idealab with the Commission on June 9, 2023. The filing of this Amendment No. 2 shall not be deemed an admission that the Reporting Persons are members of a “group” for purposes of Section 13(d) of the Exchange Act.
 
SIGNATURE

  After reasonable inquiry and to the best of his knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.

Dated: June 14, 2023


PRIME MOVERS LAB FUND I LP
 

 
 
 


By:
Prime Movers Lab GP I LLC
 


Its:
General Partner
 


 
 
 


By:
/s/ Taylor Frankel
 


Name:
Taylor Frankel
 


Title:
Authorized Person
 



PRIME MOVERS LAB GP I LLC
 

 
 
 

 
By:
Prime Movers Lab LLC
 


Its:
Managing Member
 


 
 
 


By:
/s/ Taylor Frankel
 


Name:
Taylor Frankel
 


Title:
Authorized Person
 



HELIOGEN PML SPV 1 LP
 

 
 
 

 
By:
Prime Movers Lab GP II LLC
 


Its:
General Partner
 


 
 
 


By:
/s/ Taylor Frankel
 


Name:
Taylor Frankel
 


Title:
Authorized Person
 



PRIME MOVERS LAB GP II LLC
 

 
 
 


By:
Prime Movers Lab LLC
 


Its:
Managing Member
 


 
 
 


By:
/s/ Taylor Frankel
 


Name:
Taylor Frankel
 


Title:
Authorized Person
 



PRIME MOVERS LAB FUND II LP
 

 
 
 

 
By:
Prime Movers Lab GP II LLC
 


Its:
General Partner
 


 
 
 


By:
/s/ Taylor Frankel
 


Name:
Taylor Frankel
 


Title:
Authorized Person
 



PRIME MOVERS LAB FUND III LP
 

 
 
 

 
By:
Prime Movers Lab GP III LLC
 


Its:
General Partner
 


 
 
 


By:
/s/ Taylor Frankel
 


Name:
Taylor Frankel
 


Title:
Authorized Person
 




PRIME MOVERS LAB GP III LLC
 

 
 
 

 
By:
Prime Movers Lab LLC
 


Its:
Managing Member
 


 
 
 


By:
/s/ Taylor Frankel
 


Name:
Taylor Frankel
 


Title:
Authorized Person
 



PRIME MOVERS LAB  LLC
 

 
 
 

 
By:
/s/ Taylor Frankel
 


Name:
Taylor Frankel
 


Title:
Authorized Person
 




/s/ Dakin Sloss
 



Dakin Sloss