Company: MITN
Filing Date: 2025-05-07
Form Type: S-8
Source: 0001514281-25-000064
Chunk: 0

Company: AG Mortgage Investment Trust, Inc.
Filing Date: 2025-05-07
Form: S-8
Chunk 0
---
Registration No. 333 -

<div align='center'>As filed with the Securities and Exchange Commission, May 7, 2025</div>

### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

#### FORM S-8

### REGISTRATION STATEMENT

#### Under

#### THE SECURITIES ACT OF 1933

#### AG MORTGAGE INVESTMENT TRUST, INC.
<div align='center'>(Exact name of registrant as specified in its charter)</div>

| Maryland                        |     |                             |     | 27-5254382            |
| (State or other jurisdiction of 
 incorporation or organization)  |     |                             |     | -I.R.S. employer      
 identification number |
|                                 |     | 245 Park Avenue, 26th Floor 
 New York, New York 10167    |     |                       |
|                                 |     | (212) 692-2000              |     |                       |

<div align='center'>AG Mortgage Investment Trust, Inc. 2025 Equity Incentive Plan

(Full title of the plan)</div>

#### Jenny B. Neslin

#### General Counsel

#### AG Mortgage Investment Trust, Inc.

#### 245 Park Avenue, 26th Floor
<div align='center'>New York, New York 10167 Telephone: (212) 692-2000

(Name, address and telephone number, including area code, of agent for service)</div>

<div align='center'>Copies of communications to:</div>

#### Robert K. Smith, Esq.

#### Hunton Andrews Kurth LLP

#### 2200 Pennsylvania Ave NW

#### Washington, DC 20037

#### Telephone: (202) 955-1500
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☐ Accelerated filer ☒ Non-accelerated filer ☐ Smaller reporting company ☒ Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new