Company: BL
Filing Date: 2025-03-27
Form Type: DEF 14A
Source: 0001666134-25-000011
Chunk: 2

Company: BLACKLINE, INC.
Filing Date: 2025-03-27
Form: DEF 14A
Chunk 2
---
  58 |
| Potential Payments Upon Termination or Change of Control                            |     |  59 |
| Equity Compensation Plan Information                                                |     |  61 |
| CEO Pay Ratio                                                                       |     |  61 |
| Pay Versus Performance                                                              |     |  63 |
| SECURITY OWNERSHIP                                                                  |     |  68 |
| RELATED-PERSON TRANSACTIONS                                                         |     |  70 |
| Related-Person Transactions                                                         |     |  70 |
| Policies and Procedures for Related-Party Transactions                              |     |  71 |
| OTHER MATTERS                                                                       |     |  72 |
| Delinquent Section 16(a) Reports                                                    |     |  72 |
| 2024 Annual Report                                                                  |     |  72 |
| Company Website                                                                     |     |  72 |
| Availability of Bylaws                                                              |     |  72 |
| STOCKHOLDER PROPOSAL DEADLINES FOR 2026 ANNUAL MEETING                              |     |  73 |
| Stockholder Proposals for Inclusion in Proxy Statement                              |     |  73 |
| Stockholder Proposals and Director Nominations Not for Inclusion in Proxy Statement |     |  73 |
| APPENDIX A                                                                          |     | A-1 |

TABLE OF CONTENTS

#### BLACKLINE, INC.

### PROXY STATEMENT

#### FOR THE 2025 ANNUAL MEETING OF STOCKHOLDERS
<div align='center'>To be held at 9:00 a.m. Pacific time, on Thursday, May 8, 2025</div>

The information provided in the “Questions and Answers” format below is for your convenience only and is merely a summary of the information contained in this proxy statement. You should read the entire proxy statement carefully. In this proxy statement, the terms “BlackLine,” “we,” “our,” and “Company” refer to BlackLine, Inc., a Delaware corporation.

### QUESTIONS AND ANSWERS

### ABOUT THE PROXY MATERIALS AND ANNUAL MEETING

#### Why am I receiving these materials?
This proxy statement and the enclosed form of proxy are furnished in connection with the solicitation of proxies by our Board of Directors (our “Board”) for use at the 2025 annual meeting of stockholders of BlackLine, and any postponements or adjournments thereof. The annual meeting will be held online on Thursday, May 8, 2025 at 9: