# EDGAR Filing Document

**Accession Number:** 0001319183
**File Stem:** 0000769317-23-000008
**Filing Date:** 2023-1
**Character Count:** 16289
**Document Hash:** d336af97741dcdb2351283f20e44b9ff
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000769317-23-000008.hdr.sgml**: 20230109

**ACCESSION NUMBER**: 0000769317-23-000008

**CONFORMED SUBMISSION TYPE**: SC 13D/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230109

**DATE AS OF CHANGE**: 20230109

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** FIRST TRUST MORTGAGE INCOME FUND
- **CENTRAL INDEX KEY:** 0001319183
- **IRS NUMBER:** 356758396
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** SC 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-82257
- **FILM NUMBER:** 23517266

**BUSINESS ADDRESS:**
- **STREET 1:** 120 EAST LIBERTY DRIVE, SUITE 400
- **CITY:** WHEATON
- **STATE:** IL
- **ZIP:** 60187
- **BUSINESS PHONE:** 630765-8000

**MAIL ADDRESS:**
- **STREET 1:** 120 EAST LIBERTY DRIVE, SUITE 400
- **CITY:** WHEATON
- **STATE:** IL
- **ZIP:** 60187

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FIRST TRUST/FIDAC MORTGAGE INCOME FUND
- **DATE OF NAME CHANGE:** 20050228
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SIT INVESTMENT ASSOCIATES INC
- **CENTRAL INDEX KEY:** 0000769317
- **IRS NUMBER:** 411404829
- **STATE OF INCORPORATION:** MN
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13D/A

**BUSINESS ADDRESS:**
- **STREET 1:** 3300 IDS CENTER
- **STREET 2:** 80 SOUTH EIGHTH STREET
- **CITY:** MINNEAPOLIS
- **STATE:** MN
- **ZIP:** 55402
- **BUSINESS PHONE:** 6123323223

**MAIL ADDRESS:**
- **STREET 1:** 3300 IDS CENTER
- **STREET 2:** 80 SOUTH EIGHTH STREET
- **CITY:** MINNEAPOLIS
- **STATE:** MN
- **ZIP:** 55402

```

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D
                   Under the Securities Exchange Act of 1934
                               (Amendment No. 24)

			First Trust Mortgage Income Fund
                                    ( FMY )
-------------------------------------------------------------------------------
                                (Name of Issuer)

                                  Common Stock
-------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                   33734E103
-------------------------------------------------------------------------------
                                 (CUSIP Number)

                               Paul E. Rasmussen
                                3300 IDS Center
                             80 South Eighth Street
                           Minneapolis, MN 55402-4130
-------------------------------------------------------------------------------
                 (Name, Address, and Telephone Number of Person
               Authorized to Receive Notices and Communications)

                               January 9, 2023
-------------------------------------------------------------------------------
            (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of sections 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g),
check the following box. [X]

Note: Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-7(b) for other
parties to whom copies are to be sent.

* The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section
of the Act but shall be subject to all other provisions of the Act (however,
see the Notes).

<PAGE>

CUSIP No. 33734E103
-------------------------------------------------------------------------------
1    NAME OF REPORTING PERSON

     Sit Investment Associates, Inc.
-------------------------------------------------------------------------------
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a) [ ]
                                                                         (b) [x]
-------------------------------------------------------------------------------
3    SEC USE ONLY
-------------------------------------------------------------------------------
4    SOURCE OF FUNDS (See Instructions)
	00
-------------------------------------------------------------------------------
5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) or 2(e)                        [ ]
-------------------------------------------------------------------------------
6    CITIZENSHIP OR PLACE OF ORGANIZATION

     Incorporated in Minnesota
-------------------------------------------------------------------------------
                    7     SOLE VOTING POWER
   NUMBER OF
   SHARES           -----------------------------------------------------------
   BENEFICIALLY     8     SHARED VOTING POWER
   OWNED BY
   EACH			1,934,378 Shares
   REPORTING        -----------------------------------------------------------
   PERSON           9     SOLE DISPOSITIVE POWER
   WITH
   	              -----------------------------------------------------------
                    10    SHARED DISPOSITIVE POWER

			1,934,378 Shares
-------------------------------------------------------------------------------
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

      1,934,378 Shares
-------------------------------------------------------------------------------
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
     (See instructions)                                                 [ ]

-------------------------------------------------------------------------------
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     45.91%
-------------------------------------------------------------------------------
14   TYPE OF REPORTING PERSON (See Instructions)

     IA
-------------------------------------------------------------------------------

<PAGE>

CUSIP No. 33734E103
-------------------------------------------------------------------------------
1    NAME OF REPORTING PERSON

     Sit Fixed Income Advisors II, LLC
-------------------------------------------------------------------------------
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a) [ ]
                                                                         (b) [x]
-------------------------------------------------------------------------------
3    SEC USE ONLY
-------------------------------------------------------------------------------
4    SOURCE OF FUNDS (See Instructions)
	00
-------------------------------------------------------------------------------
5    CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
     PURSUANT TO ITEMS 2(d) or 2(e)                        [ ]
-------------------------------------------------------------------------------
6    CITIZENSHIP OR PLACE OF ORGANIZATION

     Incorporated in Minnesota
-------------------------------------------------------------------------------
                    7     SOLE VOTING POWER
   NUMBER OF
   SHARES           -----------------------------------------------------------
   BENEFICIALLY     8     SHARED VOTING POWER
   OWNED BY
   EACH			1,934,378 Shares
   REPORTING        -----------------------------------------------------------
   PERSON            9     SOLE DISPOSITIVE POWER
   WITH
   	              -----------------------------------------------------------
                    10    SHARED DISPOSITIVE POWER

			1,934,378 Shares
-------------------------------------------------------------------------------
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

      1,934,378 Shares
-------------------------------------------------------------------------------
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
     (See instructions)  [ ]

-------------------------------------------------------------------------------
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     45.91%
-------------------------------------------------------------------------------
14   TYPE OF REPORTING PERSON (See Instructions)

     IA
-------------------------------------------------------------------------------

<PAGE>

ITEM 1   Security and Issuer

         Common Stock

        First Trust Mortgage Income Fund
	First Trust Advisors L.P.
	120 East Liberty Drive, Suite 400
	Wheaton, IL 60187

ITEM 2   Identity and Background

a)	and c)

       This statement is filed by:
Sit Investment Associates, Inc., a Minnesota corporation (SIA), and Sit
Fixed Income Advisors II, LLC, a Delaware limited liability company (SFI).
Both SIA and SFI are parties to a Joint Filing Agreement as further
described in Exhibit B to the initial Schedule 13D filed by SIA and SFI on
March 18, 2015.

SIA is a registered investment adviser.
SFI is a registered investment adviser and subsidiary of SIA.

SIA or SFI serves as investment adviser on behalf of its clients pursuant
to investment management agreements with each of its clients which give
SIA or SFI full discretionary authority to direct the investments of its
client in accordance with the investment objectives and restrictions of
the client.  The investment management agreements also provide that SIA or
SFI has assumed the responsibility to vote on behalf of its clients all
shares held by its clients in accounts managed by SIA or SFI.

Mr. Roger J. Sit is chairman and CEO of SIA and SFI.
Mr. Ronald D. Sit is a vice president of SIA and director.

By virtue of these positions, each of SIA, SFI, Mr. Roger Sit, and Mr.
Ronald Sit may be deemed to beneficially own the Shares held by SIA and
SFI.  None of the named individuals own shares directly.  Together SIA,
SFI, Mr. Roger Sit, and Mr. Ronald Sit are the "Sit Entities".

b)	The business address of each of the Sit Entities is 3300 IDS Center, 80
South Eighth Street, Minneapolis, MN 55402.

d) During the last five years, neither Roger J. Sit nor Ronald D. Sit have
been convicted in a criminal proceeding (excluding traffic violations or
similar misdemeanors).

e) During the last five years, none of the Sit Entities have been a party to
a civil proceeding of a judicial or administrative body of competent
jurisdiction and as a result of such proceeding was or is subject to a
judgment, decree, or final order enjoining future violations of, or
prohibiting or mandating activities subject to, federal or state
securities laws or finding any violation with respect to such laws.

f) Roger J. Sit and Ronald D. Sit are United States citizens.

<PAGE>

ITEM 3   Source and Amount of Funds or Other Consideration

The Sit Entities acquired the Issuer's Shares in open market transactions
with client funds held in custody accounts managed by SIA and SFI.

ITEM 4   Purpose of Transaction

The Sit Entities have acquired the Issuer's Shares for investment purposes,
and such purchases have been made in the ordinary course of business.  The
Issuer's Shares have been acquired on behalf of SIA's and SFI's clients.

In pursuing such investment purposes, the Sit Entities purchased the Shares
based on the Sit Entities' belief that the Shares represented an attractive
investment opportunity, and the Sit Entities may further purchase, hold,
vote, trade, sell or otherwise deal in the Shares at the time, and in such
manner, as they deem advisable to benefit from, among many things, changes in
market prices of such Shares, the market prices of such Shares relative to
the value of the Issuer's assets, changes in the Issuer's investment
strategy, and composition of the Issuer's portfolio.

None of Sit Entities have any present plan or proposal which would relate to
or result in any of the matters set forth in subparagraphs (a) - (j) of Item
4 of Schedule 13D except as set forth herein or such as would occur upon or
in connection with completion of, or following, any of the actions discussed
herein.

The Sit Entities intend to review their investment in the Issuer's Shares on
a continuing basis and may from time to time engage in discussion with
management, the Board of Directors and shareholders concerning, among other
things, the Issuer's performance, the market prices of the Issuer's Shares
relative to the value of the Issuer's assets, the Issuer's investment
strategy and the Issuer's portfolio holdings.

ITEM 5   Interest in Securities of the Issuer

a)	and b)

The aggregate percentage of Shares reported owned by Sit Entities herein
is based upon 4,213,115 Shares outstanding as of January 9, 2023, which is
the total number of Shares outstanding as reported on the Issuer's
website.  Certain clients of SIA and SFI purchased or sold Shares of the
Issuer since the last 13D filing, resulting in a greater than 1% change in
ownership of the Issuer by the Sit Entities.

As of the date hereof, the Sit Entities may be deemed to be the beneficial
owner of 1,934,378 Shares held in client accounts which represent 45.91%
of the Issuer's outstanding Shares. Each of the Sit Entities may be deemed
to have shared power to vote and dispose of such Shares.  However, none of
SIA's or SFI's directors or executive officers own Shares directly.

c)	Transactions in Shares by the Sit Entities in the last 60 days are set
forth in Exhibit A.

d) The clients of SIA and SFI have the right to participate in the receipt of
dividends from, or proceeds from the sales of, the Shares held for their
respective accounts.

         e) Not applicable

<PAGE>

ITEM 6   Contracts, Arrangements, Understandings, or Relationships with Respect
         to Securities of the Issuer

Not applicable.

ITEM 7   Materials to be Filed as Exhibits

Exhibit A:  Schedule of Transactions in Shares by Sit Entities in the last
60 days.

Signature

         After reasonable inquiry and to the best of my knowledge and belief, I
         certify that the information set forth in this statement is true,
         complete, and correct.
------------------
January 9, 2023

By:   Sit Investment Associates, Inc.
       /s/ Roger J. Sit
      -----------------------------------
      Name/Title: Roger J. Sit, Chairman & CEO

By:   Sit Fixed Income Advisors II, LLC
       /s/ Roger J. Sit
      -----------------------------------
      Name/Title: Roger J. Sit, Chairman & CEO

<PAGE>

                                   EXHIBIT A

Schedule of Transactions in Shares by Sit Entities in the last 60 days:

------------------ ------------------ ------------------ ------------------
						Shares of Common
Date of  	    	Transaction	   	Stock Purchased	  Price
Transaction	    	Type			/(Sold)		  Per Share ($)
------------------ ------------------ ------------------ ------------------
   11/14/2022		BUY			734.00	      		11.25
------------------ ------------------ ------------------ ------------------
   11/15/2022		BUY			113.00	      		11.14
------------------ ------------------ ------------------ ------------------
   12/14/2022		SELL			(9,506.00)		11.55
------------------ ------------------ ------------------ ------------------
   12/15/2022		BUY			15,000.00		11.47
------------------ ------------------ ------------------ ------------------
   12/19/2022		SELL			(200.00)	      	11.35
------------------ ------------------ ------------------ ------------------
   12/21/2022		BUY			7,123.00	      	11.40
------------------ ------------------ ------------------ ------------------
   12/28/2022		BUY			4,078.00	      	11.33
------------------ ------------------ ------------------ ------------------
   12/30/2022		BUY			2,800.00	      	11.20
------------------ ------------------ ------------------ ------------------
   01/05/2023		BUY			600.00			11.20
------------------ ------------------ ------------------ ------------------

<PAGE>

```