# EDGAR Filing Document

**Accession Number:** 0001778269
**File Stem:** 0001415889-23-005282
**Filing Date:** 2023-3
**Character Count:** 6897
**Document Hash:** 62b59ddbd17870870e5622c850fbc67f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001415889-23-005282.hdr.sgml**: 20230321

**ACCESSION NUMBER**: 0001415889-23-005282

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20230313

**FILED AS OF DATE**: 20230321

**DATE AS OF CHANGE**: 20230321

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** NELSON RYAN ROBERT
- **CENTRAL INDEX KEY:** 0001778269

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 814-00746
- **FILM NUMBER:** 23750242

**MAIL ADDRESS:**
- **STREET 1:** 2445 TECHNOLOGY FOREST BLVD., STE 800
- **CITY:** THE WOODLANDS
- **STATE:** TX
- **ZIP:** 77381
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Main Street Capital CORP
- **CENTRAL INDEX KEY:** 0001396440
- **IRS NUMBER:** 412230745
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 1300 POST OAK BOULEVARD
- **STREET 2:** 8TH FLOOR
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77056
- **BUSINESS PHONE:** (713) 350-6000

**MAIL ADDRESS:**
- **STREET 1:** 1300 POST OAK BOULEVARD
- **STREET 2:** 8TH FLOOR
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77056

## Ex-24

**Power of Attorney**

I, Ryan R. Nelson, an officer of Main Street Capital Corporation (the "Company"), hereby authorize and designate each of Jason Beauvais, Adam W. Park and Tai Lemaire as my agent and attorney-in-fact, with full power of substitution, to:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) prepare and sign on my behalf any Form 3, Form 4 or Form 5 under Section 16 of the Securities Exchange Act of 1934, and file the same with the Securities and Exchange Commission and each stock exchange on which the Company's securities are listed;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) do and perform any and all acts for and on my behalf which may be necessary or desirable to complete and execute any such Form 3, Form 4, or Form 5, under Section 16 of the Securities Exchange Act of 1934 and timely file such form with the Securities and Exchange Commission and any stock exchange or similar authority; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to me, in my best interest, or legally required by me, it being understood that the documents executed by such attorney-in-fact on my behalf pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.

I hereby grant to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as I might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers herein granted. I acknowledge that the foregoing attorneys-in-fact, in serving in such capacity at my request, are not assuming, nor is the Company assuming, any of my responsibilities to comply with Section 16 of the Securities Exchange Act of 1934.

This Power of Attorney shall remain in effect until I am no longer required to file Forms 3, 4 and 5 with respect to my holdings of and transactions in securities issued by the Company, unless earlier revoked by me in a signed writing delivered to the foregoing attorneys-in-fact.

Dated:

March 21, 2023

Signed: <u>/s/Ryan R. Nelson</u> 

Name: Ryan R. Nelson<u> </u>

WO 113325.1

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

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>NELSON RYAN ROBERT<br><sub>(Last) (First) (Middle)</sub><br>1300 POST OAK BLVD 8TH FLOOR<br><sub>(Street)</sub><br>HOUSTON, TX 77056<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Main Street Capital CORP [ MAIN ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2023-03-13 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [ ] 10% Owner<br>[X] Officer (give title below)   [ ] Other (specify below)<br>_VP, CAO, Assistant Treasurer_ | **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 Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Common Stock | 3989<sup>(1)</sup> | D |  |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) Shares issued under the Main Street Capital Corporation 2022 Equity and Incentive Plan.

**Signature:** /s/ Jason Beauvais, Attorney-in-Fact  
**Date:** 2023-03-21

### 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.**