Company: ACTG
Filing Date: 2025-04-09
Form Type: DEF 14A
Source: 0000934549-25-000014
Chunk: 0

Company: ACACIA RESEARCH CORP
Filing Date: 2025-04-09
Form: DEF 14A
Chunk 0
---
### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

#### SCHEDULE 14A
<div align='center'>Proxy Statement Pursuant to Section 14(a) of the Securities</div>

#### Exchange Act of 1934 (Amendment No. )
| Filed by the Registrantx                    |
| Filed by a Party other than the Registranto |

Check the appropriate box:

| o |     | Preliminary Proxy Statement                                                |
| o |     | Confidential, for Use of the Commission (as permitted by Rule 14a-6(e)(2)) |
| x |     | Definitive Proxy Statement                                                 |
| o |     | Definitive Additional Materials                                            |
| o |     | Soliciting Material Pursuant to §240.14a-12                                |

### ACACIA RESEARCH CORPORATION
<div align='center'>(Name of Registrant as Specified In Its Charter)

___________________

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)</div>

Payment of Filing Fee (Check all boxes that apply):

| x |     | No fee required. |

| o |     | Fee paid previously with preliminary materials:                                                     |
| o |     | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11 |

April 8, 2025

Dear Stockholders,

We are very pleased to invite you to the virtual 2025 Annual Meeting of Stockholders of Acacia Research Corporation, which will be held on Thursday, May 15, 2025, at 11:30 a.m., Eastern Time. The Annual Meeting will be held virtually via webcast at www.virtualshareholdermeeting.com/ACTG2025 .

Your vote is very important. Whether or not you plan to attend the virtual Annual Meeting, it is important that your shares be represented and voted at the virtual Annual Meeting. Therefore, we urge you to read the enclosed proxy materials and then promptly vote via the internet or telephone or by completing, signing, and returning by mail the enclosed proxy card, even if you plan to attend the virtual Annual Meeting.

As a representative of your Board of Directors, it is my pleasure to work closely with the other members of the Board who are similarly committed to our stockholders and providing effective oversight and guidance to management. We deeply value your support.

| Very truly yours,                  |
| /s