# EDGAR Filing Document

**Accession Number:** 0001906529
**File Stem:** 0001213900-26-072628
**Filing Date:** 2026-6
**Character Count:** 30781
**Document Hash:** 7bd99ac2842ea2883a281b5e1013d2f6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-26-072628.hdr.sgml**: 20260626

**ACCESSION NUMBER**: 0001213900-26-072628

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260626

**DATE AS OF CHANGE**: 20260626

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Factorial Energy Inc.
- **CENTRAL INDEX KEY:** 0002049662
- **STANDARD INDUSTRIAL CLASSIFICATION:** MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-95000
- **FILM NUMBER:** 261129404

**BUSINESS ADDRESS:**
- **STREET 1:** 805 MIDDLESEX TURNPIKE
- **CITY:** BILLERICA
- **STATE:** MA
- **ZIP:** 01821
- **BUSINESS PHONE:** 617-315-9733

**MAIL ADDRESS:**
- **STREET 1:** 805 MIDDLESEX TURNPIKE
- **CITY:** BILLERICA
- **STATE:** MA
- **ZIP:** 01821

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Cartesian Growth Corp III
- **DATE OF NAME CHANGE:** 20241220
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Wave Factorial Energy I, LLC
- **CENTRAL INDEX KEY:** 0001906529

**ORGANIZATION NAME:**
- **EIN:** 874183591
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D

**BUSINESS ADDRESS:**
- **STREET 1:** 67 BATTERYMARCH STREET, 5TH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02110
- **BUSINESS PHONE:** 617-350-9808

**MAIL ADDRESS:**
- **STREET 1:** 67 BATTERYMARCH STREET, 5TH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02110

## Exhibit 99.1

**Exhibit 1**

**Joint Filing Agreement**

In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including all amendments thereto) with respect to the Class A common stock, par value $0.00001 per share, of Factorial Energy Inc., a Delaware corporation, and that this Joint Filing Agreement shall be included as an Exhibit to such joint filing and may, as required, be included as an exhibit to subsequent amendments thereto.

Each of the undersigned agrees and acknowledges that each party hereto is (i) individually eligible to use such Schedule 13D and (ii) responsible for the timely filing of such Schedule 13D and any and all amendments thereto, and for the completeness and accuracy of the information concerning such party contained therein; provided that no party is responsible for the completeness and accuracy of the information concerning any other party unless such party knows or has reason to believe that such information is inaccurate.

This Joint Filing Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument. A facsimile, telecopy or other reproduction of this Joint Filing Agreement may be executed by one or more parties hereto, and an executed copy of this Joint Filing Agreement may be delivered by one or more parties hereto by facsimile or similar instantaneous electronic transmission device pursuant to which the signature of or on behalf of such party can be seen, and such execution and delivery shall be considered valid, binding and effective for all purposes as of the date hereof.

*[Signature page to follow.]*

IN WITNESS WHEREOF, the undersigned hereby execute this Joint Filing Agreement as of June 26, 2026.

---

| | |
|:---|:---|
| **WAVE Equity Fund, L.P.** | **WAVE Equity Fund, L.P.** |
| By: | WAVE Equity GP LP, its general partner |
| By: | /s/ Mark Robinson |
| Name: | Mark Robinson |
| Title: | Manager |
| **WAVE AAC/LIO Co-Invest III, LLC** | **WAVE AAC/LIO Co-Invest III, LLC** |
| By: | WAVE Equity GP LP, its general partner |
| By: | /s/ Mark Robinson |
| Name: | Mark Robinson |
| Title: | Manager |
| **WAVE Factorial Energy I, LLC** | **WAVE Factorial Energy I, LLC** |
| By: | WAVE Equity LLC, its general partner |
| By: | /s/ Mark Robinson |
| Name: | Mark Robinson |
| Title: | Manager |
| **WAVE Equity GP LP** | **WAVE Equity GP LP** |
| By: | /s/ Mark Robinson |
| Name: | Mark Robinson |
| Title: | Manager |
| **WAVE Equity LLC** | **WAVE Equity LLC** |
| By: | /s/ Mark Robinson |
| Name: | Mark Robinson |
| Title: | Manager |
| By: | /s/ Mark Robinson |
| **Name:** | **Mark Robinson** |
| By: | /s/ Praveen Sahay |
| **Name:** | **Praveen Sahay** |
| By: | /s/ Haskell Crocker |
| **Name:** | **Haskell Crocker** |

---

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

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**Factorial Energy Inc.**

*(Name of Issuer)*

**Class A Common Stock, par value $0.00001 per share**

*(Title of Class of Securities)*

**—**

*(CUSIP Number)*

**WAVE Equity GP LP**<br>67 Batterymarch St<br>Suite 500<br>Boston MA 02110<br>(617) 350-9808

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**06/05/2026**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**WAVE Equity Fund, L.P.** | Name of reporting person<br>**WAVE Equity Fund, L.P.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**CAYMAN ISLANDS** | Citizenship or place of organization<br>**CAYMAN ISLANDS** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**10584189.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**10584189.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**10584189.00** | Aggregate amount beneficially owned by each reporting person<br>**10584189.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**9.9%** | Percent of class represented by amount in Row (11)<br>**9.9%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**PN** | Type of Reporting Person (See Instructions)<br>**PN** | |

---

**Comment for Reporting Person:** Based upon a total of 107,023,245 shares of Class A common stock outstanding upon completion of the Business Combination, as reported by the Issuer on its Form 8-K on June 10, 2026, and assumes the exchange of 15,512,744 shares of Issuer's Series B Common Stock outstanding.

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**WAVE Factorial Energy I, LLC** | Name of reporting person<br>**WAVE Factorial Energy I, LLC** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**634715.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**634715.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**634715.00** | Aggregate amount beneficially owned by each reporting person<br>**634715.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.6%** | Percent of class represented by amount in Row (11)<br>**0.6%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

**Comment for Reporting Person:** Based upon a total of 107,023,245 shares of Class A common stock outstanding upon completion of the Business Combination, as reported by the Issuer on its Form 8-K on June 10, 2026, and assumes the exchange of 15,512,744 shares of Issuer's Series B Common Stock outstanding.

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**WAVE AAC/LIO Co-Invest III, LLC** | Name of reporting person<br>**WAVE AAC/LIO Co-Invest III, LLC** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**255548.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**255548.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**255548.00** | Aggregate amount beneficially owned by each reporting person<br>**255548.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.2%** | Percent of class represented by amount in Row (11)<br>**0.2%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

**Comment for Reporting Person:** Based upon a total of 107,023,245 shares of Class A common stock outstanding upon completion of the Business Combination, as reported by the Issuer on its Form 8-K on June 10, 2026, and assumes the exchange of 15,512,744 shares of Issuer's Series B Common Stock outstanding.

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**WAVE Equity GP LP** | Name of reporting person<br>**WAVE Equity GP LP** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**CAYMAN ISLANDS** | Citizenship or place of organization<br>**CAYMAN ISLANDS** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**10839737.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**10839737.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**10839737.00** | Aggregate amount beneficially owned by each reporting person<br>**10839737.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**10.1%** | Percent of class represented by amount in Row (11)<br>**10.1%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**PN** | Type of Reporting Person (See Instructions)<br>**PN** | |

---

**Comment for Reporting Person:** Based upon a total of 107,023,245 shares of Class A common stock outstanding upon completion of the Business Combination, as reported by the Issuer on its Form 8-K on June 10, 2026, and assumes the exchange of 15,512,744 shares of Issuer's Series B Common Stock outstanding.

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**WAVE Equity LLC** | Name of reporting person<br>**WAVE Equity LLC** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**634715.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**634715.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**634715.00** | Aggregate amount beneficially owned by each reporting person<br>**634715.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.6%** | Percent of class represented by amount in Row (11)<br>**0.6%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

**Comment for Reporting Person:** Based upon a total of 107,023,245 shares of Class A common stock outstanding upon completion of the Business Combination, as reported by the Issuer on its Form 8-K on June 10, 2026, and assumes the exchange of 15,512,744 shares of Issuer's Series B Common Stock outstanding.

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Mark Robinson** | Name of reporting person<br>**Mark Robinson** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**11474452.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**11474452.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**11474452.00** | Aggregate amount beneficially owned by each reporting person<br>**11474452.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**10.7%** | Percent of class represented by amount in Row (11)<br>**10.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** Based upon a total of 107,023,245 shares of Class A common stock outstanding upon completion of the Business Combination, as reported by the Issuer on its Form 8-K on June 10, 2026, and assumes the exchange of 15,512,744 shares of Issuer's Series B Common Stock outstanding.

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Praveen Sahay** | Name of reporting person<br>**Praveen Sahay** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**11474452.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**11474452.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**11474452.00** | Aggregate amount beneficially owned by each reporting person<br>**11474452.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**10.7%** | Percent of class represented by amount in Row (11)<br>**10.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** Based upon a total of 107,023,245 shares of Class A common stock outstanding upon completion of the Business Combination, as reported by the Issuer on its Form 8-K on June 10, 2026, and assumes the exchange of 15,512,744 shares of Issuer's Series B Common Stock outstanding.

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**U. Haskell Crocker** | Name of reporting person<br>**U. Haskell Crocker** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**11474452.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**11474452.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**11474452.00** | Aggregate amount beneficially owned by each reporting person<br>**11474452.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**10.7%** | Percent of class represented by amount in Row (11)<br>**10.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** Based upon a total of 107,023,245 shares of Class A common stock outstanding upon completion of the Business Combination, as reported by the Issuer on its Form 8-K on June 10, 2026, and assumes the exchange of 15,512,744 shares of Issuer's Series B Common Stock outstanding.

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Class A Common Stock, par value $0.00001 per share

**(b) Name of Issuer:**
Factorial Energy Inc.

**(c) Address of Issuer's Principal Executive Offices:**
805 Middlesex Turnpike, Billerica, MA, 01821

**Item 4. Purpose of Transaction**

The Reporting Persons acquired the Class A Common Stock reported herein as a result of the Business Combination and hold such securities for investment purposes. The shares held by the Funds are being registered for resale by the Issuer on a Registration Statement on Form S-1. Other than as described in this Item 4, none of the Reporting Persons presently has any plans or proposals that relate to or would result in any of the transactions or matters specified in clauses (a) through (j) of Item 4 of Schedule 13D, although the Reporting Persons may review or reconsider their position and formulate plans or proposals with respect thereto.

**Item 5. Interest in Securities of the Issuer**

**(a)**
The percentages below are calculated based on 107,023,245 shares of Class A common stock outstanding upon completion of the Business Combination, as reported by the Issuer on its Form 8-K on June 10, 2026, and assumes the exchange of 15,512,744 shares of Issuer's Series B Common Stock outstanding. Each Fund directly holds, and shares with the applicable general partner and the Managers the power to vote and dispose of, the following shares of Class A Common Stock:

(i) WAVE Equity Fund: 10,584,189 shares (or 9.9% of the Class A Common Stock issued and outstanding);

(ii) WAVE Factorial: 634,715 shares (or 0.6% of the Class A Common Stock issued and outstanding); and

(iii) WAVE Co-Invest: 255,548 shares (or 0.2% of the Class A Common Stock issued and outstanding).

WAVE GP, as general partner of WAVE Equity Fund and WAVE Co-Invest, may be deemed to share voting and dispositive power over the shares held by those two Funds. WAVE LLC, as general partner of WAVE Factorial, may be deemed to share voting and dispositive power over the 634,715 shares held by WAVE Factorial. Voting and investment power over WAVE GP and WAVE LLC is shared equally among the three Managers, each holding a one-third vote and none acting alone; accordingly, each Manager may be deemed to share voting and dispositive power over, and to beneficially own, all of the shares held by the Funds, representing approximately 10.7% of the Class A common stock in the aggregate. No Reporting Person holds sole voting or dispositive power over any shares. Each Reporting Person disclaims beneficial ownership of the reported securities except to the extent of its or his pecuniary interest therein.

**(b)**
The percentages below are calculated based on 107,023,245 shares of Class A common stock outstanding upon completion of the Business Combination, as reported by the Issuer on its Form 8-K on June 10, 2026, and assumes the exchange of 15,512,744 shares of Issuer's Series B Common Stock outstanding. Each Fund directly holds, and shares with the applicable general partner and the Managers the power to vote and dispose of, the following shares of Class A Common Stock:

(i) WAVE Equity Fund: 10,584,189 shares (or 9.9% of the Class A Common Stock issued and outstanding);

(ii) WAVE Factorial: 634,715 shares (or 0.6% of the Class A Common Stock issued and outstanding); and

(iii) WAVE Co-Invest: 255,548 shares (or 0.2% of the Class A Common Stock issued and outstanding).

WAVE GP, as general partner of WAVE Equity Fund and WAVE Co-Invest, may be deemed to share voting and dispositive power over the shares held by those two Funds. WAVE LLC, as general partner of WAVE Factorial, may be deemed to share voting and dispositive power over the 634,715 shares held by WAVE Factorial. Voting and investment power over WAVE GP and WAVE LLC is shared equally among the three Managers, each holding a one-third vote and none acting alone; accordingly, each Manager may be deemed to share voting and dispositive power over, and to beneficially own, all of the shares held by the Funds, representing approximately 10.7% of the Class A common stock in the aggregate. No Reporting Person holds sole voting or dispositive power over any shares. Each Reporting Person disclaims beneficial ownership of the reported securities except to the extent of its or his pecuniary interest therein.

**(c)**
Except for the acquisition of the Class A Common Stock at the Closing as described in Item 3, none of the Reporting Persons has effected any transaction in the Class A common stock during the past sixty days.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

The Reporting Persons are party to a Joint Filing Agreement, filed as an exhibit hereto. The shares held by the Funds are being registered for resale by the Issuer on a Registration Statement on Form S-1. Except as described herein, there are no other contracts, arrangements, understandings or relationships among the Reporting Persons or between the Reporting Persons and any other person with respect to the securities of the Issuer.

### SIGNATURE

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

**Reporting Person:** WAVE Equity Fund, L.P.

**Signature:** /s/ Mark Robinson

**Name/Title:** Mark Robinson/Manager

**Date:** 06/26/2026

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

**Reporting Person:** WAVE Factorial Energy I, LLC

**Signature:** /s/ Mark Robinson

**Name/Title:** Mark Robinson/Manager

**Date:** 06/26/2026

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

**Reporting Person:** WAVE AAC/LIO Co-Invest III, LLC

**Signature:** /s/ Mark Robinson

**Name/Title:** Mark Robinson/Manager

**Date:** 06/26/2026

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

**Reporting Person:** WAVE Equity GP LP

**Signature:** /s/ Mark Robinson

**Name/Title:** Mark Robinson/Manager

**Date:** 06/26/2026

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

**Reporting Person:** WAVE Equity LLC

**Signature:** /s/ Mark Robinson

**Name/Title:** Mark Robinson/Manager

**Date:** 06/26/2026

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

**Reporting Person:** Mark Robinson

**Signature:** /s/ Mark Robinson

**Name/Title:** Managing Director

**Date:** 06/26/2026

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

**Reporting Person:** Praveen Sahay

**Signature:** /s/ Praveen Sahay

**Name/Title:** Managing Director

**Date:** 06/26/2026

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

**Reporting Person:** U. Haskell Crocker

**Signature:** /s/ Haskell Crocker

**Name/Title:** Managing Director

**Date:** 06/26/2026