# EDGAR Filing Document

**Accession Number:** 0000769317
**File Stem:** 0000897101-25-000583
**Filing Date:** 2025-10
**Character Count:** 12499
**Document Hash:** 15201023b538befee71217a2f7513b7f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000897101-25-000583.hdr.sgml**: 20251020

**ACCESSION NUMBER**: 0000897101-25-000583

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20251020

**DATE AS OF CHANGE**: 20251020

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Eaton Vance Short Duration Diversified Income Fund
- **CENTRAL INDEX KEY:** 0001287498

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-82396
- **FILM NUMBER:** 251404642

**BUSINESS ADDRESS:**
- **STREET 1:** ONE POST OFFICE SQUARE
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109
- **BUSINESS PHONE:** 617-482-8260

**MAIL ADDRESS:**
- **STREET 1:** ONE POST OFFICE SQUARE
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** EATON VANCE LOW DURATION DIVERSIFIED INCOME FUND
- **DATE OF NAME CHANGE:** 20040416
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SIT INVESTMENT ASSOCIATES INC
- **CENTRAL INDEX KEY:** 0000769317

**ORGANIZATION NAME:**
- **EIN:** 411404829
- **STATE OF INCORPORATION:** MN
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D

**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

## Ex-99.A

EXHIBIT A

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

---

| | | | |
|:---|:---|:---|:---|
| &nbsp;&nbsp;Date of Transaction | &nbsp;&nbsp;Transaction | &nbsp;&nbsp;Shares of Common Stock | &nbsp;&nbsp;Price Per Share ($) |
| &nbsp;&nbsp;8/21/2025 | &nbsp;&nbsp;SELL | &nbsp;&nbsp;10000 | &nbsp;&nbsp;11.18 |
| &nbsp;&nbsp;8/22/2025 | &nbsp;&nbsp;SELL | &nbsp;&nbsp;16008 | &nbsp;&nbsp;11.23 |
| &nbsp;&nbsp;8/25/2025 | &nbsp;&nbsp;SELL | &nbsp;&nbsp;2686 | &nbsp;&nbsp;11.25 |
| &nbsp;&nbsp;8/26/2025 | &nbsp;&nbsp;SELL | &nbsp;&nbsp;5152 | &nbsp;&nbsp;11.29 |
| &nbsp;&nbsp;8/27/2025 | &nbsp;&nbsp;SELL | &nbsp;&nbsp;17499 | &nbsp;&nbsp;11.26 |
| &nbsp;&nbsp;8/28/2025 | &nbsp;&nbsp;SELL | &nbsp;&nbsp;170 | &nbsp;&nbsp;11.31 |
| &nbsp;&nbsp;8/29/2025 | &nbsp;&nbsp;SELL | &nbsp;&nbsp;100 | &nbsp;&nbsp;11.33 |
| &nbsp;&nbsp;9/2/2025 | &nbsp;&nbsp;SELL | &nbsp;&nbsp;200 | &nbsp;&nbsp;11.25 |
| &nbsp;&nbsp;9/3/2025 | &nbsp;&nbsp;SELL | &nbsp;&nbsp;580 | &nbsp;&nbsp;11.28 |
| &nbsp;&nbsp;9/4/2025 | &nbsp;&nbsp;SELL | &nbsp;&nbsp;5799 | &nbsp;&nbsp;11.28 |
| &nbsp;&nbsp;9/8/2025 | &nbsp;&nbsp;SELL | &nbsp;&nbsp;6706 | &nbsp;&nbsp;11.35 |
| &nbsp;&nbsp;9/12/2025 | &nbsp;&nbsp;SELL | &nbsp;&nbsp;3305 | &nbsp;&nbsp;11.41 |
| &nbsp;&nbsp;9/15/2025 | &nbsp;&nbsp;SELL | &nbsp;&nbsp;19335 | &nbsp;&nbsp;11.33 |
| &nbsp;&nbsp;9/16/2025 | &nbsp;&nbsp;SELL | &nbsp;&nbsp;6926 | &nbsp;&nbsp;11.30 |
| &nbsp;&nbsp;9/17/2025 | &nbsp;&nbsp;SELL | &nbsp;&nbsp;2068 | &nbsp;&nbsp;11.31 |
| &nbsp;&nbsp;9/18/2025 | &nbsp;&nbsp;SELL | &nbsp;&nbsp;1200 | &nbsp;&nbsp;11.34 |
| &nbsp;&nbsp;10/14/2025 | &nbsp;&nbsp;SELL | &nbsp;&nbsp;6995 | &nbsp;&nbsp;11.16 |

---

## Ex-99.B

EXHIBIT B

**Joint Filing Agreement**

The undersigned agree that the statement on Schedule 13D with respect to the Common Stock o<u>f Eaton Vance Short Duration Diversified Income Fund,</u> dated as of October 20, 2025, is, and any amendments thereto (including amendments on Schedule 13G) signed by each of the undersigned shall be, filed on behalf of each of them pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.

IN WITNESS WHEREOF, this Agreement has been duly executed by the parties hereto as of the date first written above.

---

| | |
|:---|:---|
| By: Sit Investment Associates, Inc. | By: Sit Fixed Income Advisors II, LLC |
| /s/Roger J. Sit | /s/Roger J. Sit |
| Roger J. Sit | Roger J. Sit |
| Its: CEO | Its: CEO |

---

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

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**Eaton Vance Short Duration Diversified Income Fund**

*(Name of Issuer)*

**Common Stock**

*(Title of Class of Securities)*

**27828V104**

*(CUSIP Number)*

**Paul E. Rasmussen**<br>80 South Eighth Street<br>Suite 3300<br>Minneapolis MN 55402-4130<br>612-332-3223

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**10/20/2025**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **27828V104** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Sit Investment Associates, Inc.** | Name of reporting person<br>**Sit Investment Associates, Inc.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**MINNESOTA** | Citizenship or place of organization<br>**MINNESOTA** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**857119.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**857119.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**857119.00** | Aggregate amount beneficially owned by each reporting person<br>**857119.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**6.4%** | Percent of class represented by amount in Row (11)<br>**6.4%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IA** | Type of Reporting Person (See Instructions)<br>**IA** | |

---

| **CUSIP No.** | **27828V104** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Sit Fixed Income Advisors II, LLC** | Name of reporting person<br>**Sit Fixed Income Advisors II, LLC** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**857119.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**857119.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**857119.00** | Aggregate amount beneficially owned by each reporting person<br>**857119.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**6.4%** | Percent of class represented by amount in Row (11)<br>**6.4%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IA** | Type of Reporting Person (See Instructions)<br>**IA** | |

---

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Stock

**(b) Name of Issuer:**
Eaton Vance Short Duration Diversified Income Fund

**(c) Address of Issuer's Principal Executive Offices:**
One Post Office Square,, Boston, MA, 02109

**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 also propose or take one or more of the actions described in subsections (a) through (j) of Item 4 of Schedule 13D, including engaging in discussions 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 distribution rate, the Issuer's capitalization, the Issuer's investment strategy and the Issuer's portfolio holdings.  The Sit Entities may make binding and non-binding shareholder proposals, or may nominate one or more individuals as nominees for election to the Board.

**Item 5. Interest in Securities of the Issuer**

**(a)**
The aggregate percentage of Shares reported owned by Sit Entities herein is based upon 13,452,867 Shares outstanding as of April 30, 2025, which is the total number of Shares outstanding as reported in the Issuer's Form N-CSRS.

**(b)**
As of the date hereof, the Sit Entities may be deemed to be the beneficial owner of 857,119 Shares held in client accounts which represent 6.4% 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 client accounts own more than 5% of the shares outstanding, and none of SIA's or SFI's directors or executive officers own shares directly.

**(c)**
Transactions in Shares effected during the past 60 days by the Sit Entities are set forth in Exhibit A.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

Not applicable.

### 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.

**Reporting Person:** Sit Investment Associates, Inc.

**Signature:** /s/ Roger J. Sit

**Name/Title:** Roger J. Sit, Chairman & CEO

**Date:** 10/20/2025

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.

**Reporting Person:** Sit Fixed Income Advisors II, LLC

**Signature:** /s/ Roger J. Sit

**Name/Title:** Roger J. Sit, Chairman & CEO

**Date:** 10/20/2025