# EDGAR Filing Document

**Accession Number:** 0001227050
**File Stem:** 0000899243-23-005098
**Filing Date:** 2023-2
**Character Count:** 6684
**Document Hash:** c7b7c15d72ae11903f769763cc946426
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000899243-23-005098.hdr.sgml**: 20230214

**ACCESSION NUMBER**: 0000899243-23-005098

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20230210

**FILED AS OF DATE**: 20230214

**DATE AS OF CHANGE**: 20230214

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** MADDOCK ERNEST E
- **CENTRAL INDEX KEY:** 0001227050

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39463
- **FILM NUMBER:** 23633290

**MAIL ADDRESS:**
- **STREET 1:** LAM RESEARCH
- **STREET 2:** 4650 CUSHING PARKWAY
- **CITY:** FREMONT
- **STATE:** CA
- **ZIP:** 94538

**FORMER NAME:**
- **FORMER CONFORMED NAME:** MADDOCK ERNIE
- **DATE OF NAME CHANGE:** 20030411
**ISSUER**: 

**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

**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

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

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>MADDOCK ERNEST E<br><sub>(Last) (First) (Middle)</sub><br>350 TREAT AVENUE<br><sub>(Street)</sub><br>SAN FRANCISCO, CA 94110<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-10 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Ouster, Inc. [ OUST ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2023-02-10 |  | A |  | 133007 | A | <sup>(1)</sup> | 133007 | D |  |
| Common Stock | 2023-02-10 |  | A |  | 186254<sup>(2)</sup> | A | $0.00 | 319261 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) Pursuant to the Agreement and Plan of Merger, dated as of November 4, 2022 (the "Merger Agreement"), at the effective time of the first merger contemplated by the Merger Agreement (the "Effective Time"), each share of common stock of Velodyne Lidar, Inc. ("Velodyne") held by the Reporting Person immediately prior to the Effective Time was converted into 0.8204 shares of the Company's common stock. The transaction was exempt from Section 16(b) of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16b-3 promulgated thereunder.

(2) Represents Company restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Company's common stock. The RSUs vest as to 1/5 of the the total number of RSUs on each of the first five quarterly anniversaries of the grant date, subject to the Reporting Person's continued service through the applicable vesting date. The RSUs have no expiration date.

**Signature:** /s/ Megan Chung, as Attorney-in-Fact  
**Date:** 2023-02-14

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**