# EDGAR Filing Document

**Accession Number:** 0001899229
**File Stem:** 0000929638-26-002179
**Filing Date:** 2026-6
**Character Count:** 10506
**Document Hash:** 618582e958d7e7240e60331f80e85f5d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000929638-26-002179.hdr.sgml**: 20260608

**ACCESSION NUMBER**: 0000929638-26-002179

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260608

**DATE AS OF CHANGE**: 20260608

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Solid Power, Inc.
- **CENTRAL INDEX KEY:** 0001844862
- **STANDARD INDUSTRIAL CLASSIFICATION:** MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 861888095
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-92522
- **FILM NUMBER:** 261071805

**BUSINESS ADDRESS:**
- **STREET 1:** 486 S. PIERCE AVE., SUITE E
- **CITY:** LOUISVILLE
- **STATE:** CO
- **ZIP:** 80027
- **BUSINESS PHONE:** (303) 219-0720

**MAIL ADDRESS:**
- **STREET 1:** 486 S. PIERCE AVE., SUITE E
- **CITY:** LOUISVILLE
- **STATE:** CO
- **ZIP:** 80027

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Decarbonization Plus Acquisition Corp III
- **DATE OF NAME CHANGE:** 20210208
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BMW Holding B.V.
- **CENTRAL INDEX KEY:** 0001899229

**ORGANIZATION NAME:**
- **EIN:** 981062922
- **STATE OF INCORPORATION:** P7
- **FISCAL YEAR END:** 1231

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

**BUSINESS ADDRESS:**
- **STREET 1:** EINSTEINLAAN 5
- **CITY:** RIJSWIJK
- **STATE:** P7
- **ZIP:** 2289 CC
- **BUSINESS PHONE:** 3170413329

**MAIL ADDRESS:**
- **STREET 1:** EINSTEINLAAN 5
- **CITY:** RIJSWIJK
- **STATE:** P7
- **ZIP:** 2289 CC

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

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 1)**

**Solid Power, Inc.**

*(Name of Issuer)*

**Common Stock, par value $0.0001 per share**

*(Title of Class of Securities)*

**—**

*(CUSIP Number)*

**Glenn Ramcharan**<br>Financial Director, BMW Holding B.V.<br>Einsteinlaan 5<br>Rijswijk P7 2289 CC<br>31-70-4133-294

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

**04/20/2026**

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

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**BMW Holding B.V.** | Name of reporting person<br>**BMW Holding B.V.** | |
| 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>**P7** | Citizenship or place of organization<br>**P7** | |
| 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>**10488518.00** |
| 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>**10488518.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**10488518.00** | Aggregate amount beneficially owned by each reporting person<br>**10488518.00** | |
| 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>**4.7%** | Percent of class represented by amount in Row (11)<br>**4.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**BMW INTEC Beteiligungs GmbH** | Name of reporting person<br>**BMW INTEC Beteiligungs GmbH** | |
| 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>**2M** | Citizenship or place of organization<br>**2M** | |
| 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>**10488518.00** |
| 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>**10488518.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**10488518.00** | Aggregate amount beneficially owned by each reporting person<br>**10488518.00** | |
| 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>**4.7%** | Percent of class represented by amount in Row (11)<br>**4.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**HC** | Type of Reporting Person (See Instructions)<br>**HC** | |

---

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Bayerische Motoren Werke AG** | Name of reporting person<br>**Bayerische Motoren Werke AG** | |
| 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>**2M** | Citizenship or place of organization<br>**2M** | |
| 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>**10488518.00** |
| 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>**10488518.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**10488518.00** | Aggregate amount beneficially owned by each reporting person<br>**10488518.00** | |
| 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>**4.7%** | Percent of class represented by amount in Row (11)<br>**4.7%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Item 1. Security and Issuer**

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

**(b) Name of Issuer:**
Solid Power, Inc.

**(c) Address of Issuer's Principal Executive Offices:**
486 S. PIERCE AVE., SUITE E,, LOUISVILLE, CO, 80027

**Item 4. Purpose of Transaction**

Item 4 is hereby amended and supplemented as follows (capitalized terms have the meanings ascribed to them in the Schedule 13D filed by the Reporting Persons on December 20, 2021):

As announced in the Company's Current Report on Form 8-K, as filed with the Securities and Exchange Commission on April 24, 2026, on April 20, 2026 Rainer Feurer, an executive within BMW Group, provided notice to the Company of his intention to retire from the Board of Directors effective June 30, 2026. Dr. Feurer's decision to retire and step down from the Board of Directors was not the result of any disagreement on matters relating to the Company's operations, policies or practices.  BMW Holding continues to retain its director nomination rights.

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

**(a)**
—

**(b)**
—

**(c)**
Based on information in the Company's Current Report on Form 8-K, as filed with the Securities and Exchange Commission on January 29, 2026, the Reporting Persons ceased to beneficially own more than 5% of the Common Stock on or about January 29, 2026.

### 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:** BMW Holding B.V.

**Signature:** /s/ Ralf Edelmann

**Name/Title:** Ralf Edelmann/Managing Director

**Date:** 06/01/2026

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:** BMW INTEC Beteiligungs GmbH

**Signature:** /s/ Jonathan Townend

**Name/Title:** Jonathan Townend/Managing Director

**Date:** 06/02/2026

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:** Bayerische Motoren Werke AG

**Signature:** ppa. /s/ Fredrik Altmann

**Name/Title:** Fredrik Altmann/Vice President Corporate Finance, Steering Treasury Center

**Date:** 06/01/2026