Company: NINE
Filing Date: 2025-03-06
Form Type: DEF 14A
Source: 0001193125-25-048494
Chunk: 0

Company: Nine Energy Service, Inc.
Filing Date: 2025-03-06
Form: DEF 14A
Chunk 0
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. ) Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box:

| ☐ | Preliminary Proxy Statement |

| Confidential, for Use of the Commission Only (as permitted by Rule14a-6(e)(2)) |

| ☒ | Definitive Proxy Statement |

| ☐ | Definitive Additional Material |

| ☐ | Soliciting Material under§240.14a-12 |

Nine Energy Service, Inc. (Name of Registrant as Specified in its Charter) N/A (Name of Person(s) Filing Proxy Statement, if Other Than the Registrant) Payment of Filing Fee (Check all boxes that apply):

| ☒ | No fee required |

| ☐ | Fee paid previously with preliminary materials |

| ☐ | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules14a-6(i)(1)and0-11 |

<div align='center'>**NOTICE OF 2025 ANNUAL MEETING OF STOCKHOLDERS

To Be Held on May 2, 2025**</div>

**The 2025 Annual Meeting of Stockholders (the “Annual Meeting”) of Nine Energy Service, Inc. (the “Company,” “we” and “our”) will be held at 8:00 a.m., Central Time, on May 2, 2025, at 2001 Kirby Drive, Suite 200, Houston, Texas 77019, for the following purposes:

1. To elect two Class I directors to serve until the Company’s 2028 Annual Meeting of Stockholders or until their respective successors are elected and qualified;

2. To ratify the appointment of PricewaterhouseCoopers LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2025;

3. To approve, on an advisory basis, the compensation of our named executive officers (“say-on-pay”);

4. To approve the Third Amendment to the Nine Energy Service, Inc. 2011 Stock Incentive Plan; and

5. To transact such other business as may properly come before the Annual Meeting or any adjournment or postponement thereof.

The