# EDGAR Filing Document

**Accession Number:** 0001329099
**File Stem:** 0001193125-23-045538
**Filing Date:** 2023-2
**Character Count:** 17975
**Document Hash:** 7c9c5ddf878cccbfa5011878b0698720
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-23-045538.hdr.sgml**: 20230223

**ACCESSION NUMBER**: 0001193125-23-045538

**CONFORMED SUBMISSION TYPE**: SC 13G

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20230223

**DATE AS OF CHANGE**: 20230223

**GROUP MEMBERS**: BAIDU (HONG KONG) LTD

**GROUP MEMBERS**: BAIDU HOLDINGS LTD

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Ouster, Inc.
- **CENTRAL INDEX KEY:** 0001816581
- **STANDARD INDUSTRIAL CLASSIFICATION:** GENERAL INDUSTRIAL MACHINERY & EQUIPMENT, NEC [3569]
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13G
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-91829
- **FILM NUMBER:** 23655799

**BUSINESS ADDRESS:**
- **STREET 1:** 350 TREAT AVENUE
- **CITY:** SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94110
- **BUSINESS PHONE:** (415) 987-6972

**MAIL ADDRESS:**
- **STREET 1:** 350 TREAT AVENUE
- **CITY:** SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94110

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Colonnade Acquisition Corp.
- **DATE OF NAME CHANGE:** 20200701
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Baidu, Inc.
- **CENTRAL INDEX KEY:** 0001329099
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC. [7370]
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13G

**BUSINESS ADDRESS:**
- **STREET 1:** BAIDU CAMPUS, NO. 10 SHANGDI 10TH STREET
- **STREET 2:** HAIDIAN DISTRICT
- **CITY:** BEIJING
- **STATE:** F4
- **ZIP:** 100085
- **BUSINESS PHONE:** (86-10) 5992 8888

**MAIL ADDRESS:**
- **STREET 1:** BAIDU CAMPUS, NO. 10 SHANGDI 10TH STREET
- **STREET 2:** HAIDIAN DISTRICT
- **CITY:** BEIJING
- **STATE:** F4
- **ZIP:** 100085

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Baidu.com, Inc.
- **DATE OF NAME CHANGE:** 20050602

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**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

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**SCHEDULE 13G** 

**UNDER THE SECURITIES EXCHANGE ACT OF 1934** 

**(Amendment No.)\*** 

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## OUSTER, INC.
**(the combined company as a result of merger of equals with Velodyne Lidar, Inc.)** 

**(Name of Issuer)** 

**Common stock, par value US$0.0001 per share** 

**(Title of Class of Securities)** 

**68989M103** 

**(CUSIP Number)** 

**February 10, 2023** 

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

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

☐ Rule 13d-1(b)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;☒ Rule 13d-1(c)

☐ Rule 13d-1(d)

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

The information required in 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).

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CUSIP No. 68989M103

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| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; 1 | Names of Reporting Persons<br>Baidu, Inc. | Names of Reporting Persons<br>Baidu, Inc. | Names of Reporting Persons<br>Baidu, Inc. |
| &nbsp;&nbsp;&nbsp; 2 | Check the Appropriate Box if a Member of a Group<br> (a) ☐ (b) ☐ | Check the Appropriate Box if a Member of a Group<br> (a) ☐ (b) ☐ | Check the Appropriate Box if a Member of a Group<br> (a) ☐ (b) ☐ |
| &nbsp;&nbsp;&nbsp; 3 | SEC Use Only | SEC Use Only | SEC Use Only |
| &nbsp;&nbsp;&nbsp; 4 | Citizenship or Place of Organization<br>Cayman Islands | Citizenship or Place of Organization<br>Cayman Islands | Citizenship or Place of Organization<br>Cayman Islands |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 5 | Sole Voting Power<br>12,719,865 shares of common stock<sup>(1)</sup>  |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 6 | Shared Voting Power<br>0 |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 7 | Sole Dispositive Power<br>12,719,865 shares of common stock<sup>(1)</sup>  |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 8 | Shared Dispositive Power<br>0 |
| &nbsp;&nbsp;&nbsp; 9 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>12,719,865 shares of common stock | Aggregate Amount Beneficially Owned by Each Reporting Person<br>12,719,865 shares of common stock | Aggregate Amount Beneficially Owned by Each Reporting Person<br>12,719,865 shares of common stock |
| &nbsp;&nbsp;&nbsp;10 | Check if the Aggregate Amount in Row (9) Excludes Certain Shares<br>☐ | Check if the Aggregate Amount in Row (9) Excludes Certain Shares<br>☐ | Check if the Aggregate Amount in Row (9) Excludes Certain Shares<br>☐ |
| &nbsp;&nbsp;&nbsp;11 | Percent of Class Represented by Amount in Row (9)<br>3.4% | Percent of Class Represented by Amount in Row (9)<br>3.4% | Percent of Class Represented by Amount in Row (9)<br>3.4% |
| &nbsp;&nbsp;&nbsp;12 | Type of Reporting Person<br>CO | Type of Reporting Person<br>CO | Type of Reporting Person<br>CO |

---

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Notes:

(1) Includes 10,718,890 shares of common stock directly held by Baidu (Hong Kong) Limited and 2,000,975 shares of
common stock directly held by Baidu Holdings Limited. Baidu (Hong Kong) Limited is wholly owned by Baidu Holdings Limited, which is wholly owned by Baidu, Inc. See Item 4.

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CUSIP No. 68989M103

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| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; 1 | Names of Reporting Persons<br>Baidu Holdings Limited | Names of Reporting Persons<br>Baidu Holdings Limited | Names of Reporting Persons<br>Baidu Holdings Limited |
| &nbsp;&nbsp;&nbsp; 2 | Check the Appropriate Box if a Member of a Group<br> (a) ☐ (b) ☐ | Check the Appropriate Box if a Member of a Group<br> (a) ☐ (b) ☐ | Check the Appropriate Box if a Member of a Group<br> (a) ☐ (b) ☐ |
| &nbsp;&nbsp;&nbsp; 3 | SEC Use Only | SEC Use Only | SEC Use Only |
| &nbsp;&nbsp;&nbsp; 4 | Citizenship or Place of Organization<br>British Virgin Islands | Citizenship or Place of Organization<br>British Virgin Islands | Citizenship or Place of Organization<br>British Virgin Islands |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 5 | Sole Voting Power<br>12,719,865 shares of common stock<sup>(1)</sup>  |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 6 | Shared Voting Power<br>0 |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 7 | Sole Dispositive Power<br>12,719,865 shares of common stock<sup>(1)</sup>  |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 8 | Shared Dispositive Power<br>0 |
| &nbsp;&nbsp;&nbsp; 9 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>12,719,865 shares of common stock | Aggregate Amount Beneficially Owned by Each Reporting Person<br>12,719,865 shares of common stock | Aggregate Amount Beneficially Owned by Each Reporting Person<br>12,719,865 shares of common stock |
| &nbsp;&nbsp;&nbsp;10 | Check if the Aggregate Amount in Row (9) Excludes Certain Shares<br>☐ | Check if the Aggregate Amount in Row (9) Excludes Certain Shares<br>☐ | Check if the Aggregate Amount in Row (9) Excludes Certain Shares<br>☐ |
| &nbsp;&nbsp;&nbsp;11 | Percent of Class Represented by Amount in Row (9)<br>3.4% | Percent of Class Represented by Amount in Row (9)<br>3.4% | Percent of Class Represented by Amount in Row (9)<br>3.4% |
| &nbsp;&nbsp;&nbsp;12 | Type of Reporting Person<br>CO | Type of Reporting Person<br>CO | Type of Reporting Person<br>CO |

---

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Notes:

(1) Includes 10,718,890 shares of common stock directly held by Baidu (Hong Kong) Limited and 2,000,975 shares of
common stock directly held by Baidu Holdings Limited. Baidu (Hong Kong) Limited is wholly owned by Baidu Holdings Limited. See Item 4.

------

CUSIP No. 68989M103

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| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;&nbsp; 1 | Names of Reporting Persons<br>Baidu (Hong Kong) Limited | Names of Reporting Persons<br>Baidu (Hong Kong) Limited | Names of Reporting Persons<br>Baidu (Hong Kong) Limited |
| &nbsp;&nbsp;&nbsp; 2 | Check the Appropriate Box if a Member of a Group<br> (a) ☐ (b) ☐ | Check the Appropriate Box if a Member of a Group<br> (a) ☐ (b) ☐ | Check the Appropriate Box if a Member of a Group<br> (a) ☐ (b) ☐ |
| &nbsp;&nbsp;&nbsp; 3 | SEC Use Only | SEC Use Only | SEC Use Only |
| &nbsp;&nbsp;&nbsp; 4 | Citizenship or Place of Organization<br>Hong Kong | Citizenship or Place of Organization<br>Hong Kong | Citizenship or Place of Organization<br>Hong Kong |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 5 | Sole Voting Power<br>10,718,890 shares of common stock |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 6 | Shared Voting Power<br>0 |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 7 | Sole Dispositive Power<br>10,718,890 shares of common stock |
| &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | &nbsp;&nbsp;&nbsp; Number of<br> Shares<br> Beneficially<br> Owned by<br> Each<br> Reporting<br> Person<br> With: | 8 | Shared Dispositive Power<br>0 |
| &nbsp;&nbsp;&nbsp; 9 | Aggregate Amount Beneficially Owned by Each Reporting Person<br>10,718,890 shares of common stock | Aggregate Amount Beneficially Owned by Each Reporting Person<br>10,718,890 shares of common stock | Aggregate Amount Beneficially Owned by Each Reporting Person<br>10,718,890 shares of common stock |
| &nbsp;&nbsp;&nbsp;10 | Check if the Aggregate Amount in Row (9) Excludes Certain Shares<br>☐ | Check if the Aggregate Amount in Row (9) Excludes Certain Shares<br>☐ | Check if the Aggregate Amount in Row (9) Excludes Certain Shares<br>☐ |
| &nbsp;&nbsp;&nbsp;11 | Percent of Class Represented by Amount in Row (9)<br>2.8% | Percent of Class Represented by Amount in Row (9)<br>2.8% | Percent of Class Represented by Amount in Row (9)<br>2.8% |
| &nbsp;&nbsp;&nbsp;12 | Type of Reporting Person<br>CO | Type of Reporting Person<br>CO | Type of Reporting Person<br>CO |

---

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| | |
|:---|:---|
| **Item 1(a).** | **Name of Issuer:**  |

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Ouster, Inc. (the "Company") (formerly Colonnade Acquisition Corp.).

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| | |
|:---|:---|
| **Item 1(b).** | **Address of Issuer's Principal Executive Offices:**  |

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350 Treat Avenue, San Francisco, CA 94110

United States of America

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| | |
|:---|:---|
| **Item 2(a).** | **Name of Person Filing:**  |

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Baidu, Inc. (together with Baidu Holdings Limited and Baidu (Hong Kong) Limited, "**Baidu**")

Baidu Holdings Limited

Baidu (Hong Kong) Limited

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| | |
|:---|:---|
| **Item 2(b).** | **Address of Principal Business Office, or, if none, Residence:**  |

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For Baidu, Inc.:

Baidu Campus

No. 10 Shangdi 10th Street

Haidian District, Beijing 100085

People's Republic of China

For Baidu Holdings Limited:

Baidu Campus

No. 10 Shangdi 10th Street

Haidian District, Beijing 100085

People's Republic of China

For Baidu (Hong Kong) Limited:

1102, The Lee Gardens

33 Hysan Avenue

Causeway Bay

Hong Kong

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| | |
|:---|:---|
| **Item 2(c).** | **Citizenship:**  |

---

Baidu, Inc. – Cayman Islands

Baidu Holdings Limited – British Virgin Islands

Baidu (Hong Kong) Limited – Hong Kong

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| | |
|:---|:---|
| **Item 2(d).** | **Title of Class of Securities:**  |

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Common stock, par value US$0.0001 per share, of Ouster, Inc.

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| | |
|:---|:---|
| **Item 2(e).** | **CUSIP No.:**  |

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68989M103.

**Item 3.** **If this statement is filed pursuant to §§ 240.13d-1(b), or 240.13d -2(b) or (c), check whether the persons filing is a:** <br>

Not applicable.

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**Item 4.** **Ownership:** <br>

On November 4, 2022, Velodyne Lidar, Inc. ("<u>Velodyne</u>") and Ouster, Inc. ("<u>Ouster</u>"), among others, entered into an Agreement and Plan of Merger (the "<u>Merger Agreement</u>"). Pursuant to the transactions as contemplated under the Merger Agreement, and following the satisfaction or waiver of the conditions specified therein, on February 10, 2023, the merger was completed with the combined company keeping the name Ouster and continuing to trade on the New York Stock Exchange under the ticker "OUST." Each share of common stock, par value US$0.0001 per share, of Velodyne issued and outstanding immediately prior to the effective time of the merger was converted into the right to receive 0.8204 validly issued, fully paid and non-assessable shares of common stock, par value US$0.0001 per share, of Ouster.

Accordingly, 2,439,024 common stock of Velodyne then held by Baidu (Hong Kong) Limited and 13,065,444 common stock of Velodyne then held by Baidu Holdings Limited, respectively, were converted into the right to receive 2,000,975 and 10,718,890 validly issued, fully paid and non-assessable shares of common stock, par value US$0.0001 per share, of Ouster, respectively. Baidu received cash in lieu of fractional shares. As a result, as of February 10, 2023, Baidu (Hong Kong) Limited directly held 2,000,975 common stock of Ouster and Baidu Holdings Limited directly held 10,718,890 common stock of Ouster.

Baidu (Hong Kong) Limited is a wholly-owned subsidiary of Baidu Holdings Limited, a British Virgin Islands company, which is wholly owned by Baidu, Inc., a Cayman Islands company listed on the NASDAQ Global Select Market.

**Item 5.** **Ownership of Five Percent or Less of a Class:** <br>

Not applicable.

**Item 6.** **Ownership of More than Five Percent on Behalf of Another Person:** <br>

Not applicable.

**Item 7.** **Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person:** <br>

Not applicable.

**Item 8.** **Identification and Classification of Members of the Group:** <br>

Not applicable.

**Item 9.** **Notice of Dissolution of Group:** <br>

Not applicable.

**Item 10.** **Certifications:** <br>

Not applicable.

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**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.

Dated: February 23, 2023

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| | |
|:---|:---|
|  | **Baidu, Inc.** |
| By: | /s/ Robin Yanhong Li |
| Name: | Robin Yanhong Li |
| Title: | Chief Executive Officer |
|  | **Baidu Holdings Limited** |
| By: | /s/ Robin Yanhong Li |
| Name: | Robin Yanhong Li |
| Title: | Director |
|  | **Baidu (Hong Kong) Limited** |
| By: | /s/ Li Liu |
| Name: | Li Liu |
| Title: | Director |

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**LIST OF EXHIBITS** 

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| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| 99.1 | Joint Filing Agreement |

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## Exhibit 99.1

**Exhibit 99.1** 

**<u>Joint Filing Agreement</u>**

In accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with all other Reporting Persons (as such term is defined in the Schedule 13G referred to below) on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the common stock, par value of $0.0001 per share, of Ouster, Inc., a Delaware corporation, and that this Agreement may be included as an Exhibit to such joint filing. This Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument.

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| | |
|:---|:---|
|  | **Baidu, Inc.** |
| By: | /s/ Robin Yanhong Li |
| Name: | Robin Yanhong Li |
| Title: | Chief Executive Officer |
|  | **Baidu Holdings Limited** |
| By: | /s/ Robin Yanhong Li |
| Name: | Robin Yanhong Li |
| Title: | Director |
|  | **Baidu (Hong Kong) Limited** |
| By: | /s/ Li Liu |
| Name: | Li Liu |
| Title: | Director |

---