Sit Investment Associates, Inc. and Sit Fixed Income Advisors II, LLC report shared voting and dispositive power over 20,744,061 shares of TCW Strategic Income Fund Inc. Common Stock, representing 32.6% of the class. The percentage is calculated using 63,713,920 shares outstanding as of December 31, 2025, adjusted for the issuer's rights offering on February 19, 2026.
The filing states SIA and SFI act as investment advisers to client accounts that own the reported shares and disclaim beneficial ownership pursuant to Rule 13d-4 of the Exchange Act. The filing identifies the issuer's principal executive office and the CUSIP 872340104.
Positive
None.
Negative
None.
Insights
Large advisory-managed holding disclosed; advisers report shared control but disclaim beneficial ownership.
The filing shows SIA and SFI together exercise shared voting and dispositive power over 20,744,061 shares (32.6%) of the issuer, based on 63,713,920 shares outstanding as of December 31, 2025. The statement attributes ownership to client Accounts managed by the advisers.
Petitioning language follows Rule 13d-4: SIA and SFI disclaim beneficial ownership while acknowledging advisory control over the Accounts' securities. Subsequent investor disclosures or amendments would be the primary sources for changes to this position.
Key Figures
Shared voting/dispositive power:20,744,061 sharesPercent of class:32.6%Shares outstanding:63,713,920 shares+2 more
5 metrics
Shared voting/dispositive power20,744,061 sharesreported shared power by SIA and SFI
Percent of class32.6%based on shares outstanding as of 12/31/2025
Shares outstanding63,713,920 sharesoutstanding as of <date>12/31/2025</date> per Form N-CSR
Rights offering adjustment dateFebruary 19, 2026date used to adjust outstanding share count
CUSIP872340104TCW Strategic Income Fund Inc. Common Stock
"SIA and SFI disclaim beneficial ownership of such securities"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
shared voting powerfinancial
"Shared Voting Power 20,744,061.00"
Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.
Rule 13d-4regulatory
"Pursuant to Rule 13d-4 of the Securities Exchange Act of 1934"
What stake does Sit Investment report in TCW Strategic Income Fund (TSI)?
Sit reports shared voting and dispositive power over 20,744,061 shares, equal to 32.6% of the class, using 63,713,920 shares outstanding as of December 31, 2025 adjusted for the February 19, 2026 rights offering.
Do Sit Investment Associates and Sit Fixed Income Advisors claim ownership of the shares?
They state they may be deemed to control the shares held by client accounts but explicitly disclaim beneficial ownership
Which accounts hold the reported shares and do any single accounts exceed 5%?
The filing says all reported securities are owned by client Accounts managed by SIA and SFI, and no single Account advised by them owns more than 5% of the class, per the disclosure in Item 6.
What is the basis for the percentage ownership calculation?
The percentage is based on 63,713,920 shares outstanding as of December 31, 2025, as reported on the issuer's Form N-CSR, and adjusted for a rights offering on February 19, 2026, per the filing.
What CUSIP and class of security are covered in this filing?
The filing covers TCW Strategic Income Fund Inc. Common Stock with CUSIP 872340104, as listed in Item 1(e) of the Schedule 13G/A.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 6)
TCW STRATEGIC INCOME FUND INC
(Name of Issuer)
Common Stock
(Title of Class of Securities)
872340104
(CUSIP Number)
06/30/2026
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)
schemaVersion:
SCHEDULE 13G
CUSIP Number(s):
872340104
1
Names of Reporting Persons
Sit Investment Associates, Inc.
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
MINNESOTA
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
20,744,061.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
20,744,061.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
20,744,061.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
32.6 %
12
Type of Reporting Person (See Instructions)
IA
SCHEDULE 13G
CUSIP Number(s):
872340104
1
Names of Reporting Persons
Sit Fixed Income Advisors II, LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
20,744,061.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
20,744,061.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
20,744,061.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
32.6 %
12
Type of Reporting Person (See Instructions)
IA
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
TCW STRATEGIC INCOME FUND INC
(b)
Address of issuer's principal executive offices:
515 South Flower Street, Los Angeles, CA 90071
Item 2.
(a)
Name of person filing:
Sit Investment Associates, Inc.
Sit Fixed Income Advisors II, LLC
(b)
Address or principal business office or, if none, residence:
c/o Sit Investment Associates, Inc.
80 South Eighth Street, Suite 3300
Minneapolis, MN 55402
(c)
Citizenship:
Sit Investment Associates, Inc. Minnesota Corporation
Sit Fixed Income Advisors II, LLC Delaware LLC
(d)
Title of class of securities:
Common Stock
(e)
CUSIP No.:
872340104
Item 3.
If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)
Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)
Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)
Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)
Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)
An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)
An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)
A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)
A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)
A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)
A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
(k)
Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.
Ownership
(a)
Amount beneficially owned:
See response to item 9 on each cover page.
(b)
Percent of class:
See response to item 11 on each cover page.
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
See response to item 5 on each cover page.
(ii) Shared power to vote or to direct the vote:
See response to item 6 on each cover page.
(iii) Sole power to dispose or to direct the disposition of:
See response to item 7 on each cover page.
(iv) Shared power to dispose or to direct the disposition of:
See response to item 8 on each cover page.
The ownership percentages reported are based on 63,713,920 shares of common stock outstanding as of December 31, 2025, as reported in the Issuer's Report on Form N-CSR filed with the Securities Exchange Commission, and adjusted for the Issuer's rights offering on February 19, 2026.
Sit Investment Associates, Inc. ("SIA") is an investment adviser registered under section 203 of the Investment Advisers Act of 1940. Sit Fixed Income Advisors II, LLC ("SFI") is an investment adviser registered under section 203 of the Investment Advisers Act of 1940 and a subsidiary of SIA. SIA and SFI provide investment management services to client accounts ("Accounts"). In their roles as investment advisers SIA and SFI possess shared voting and investment power over securities of the Issuer described in this schedule 13G owned by the Accounts and may be deemed to be the beneficial owner of such shares of the Issuer owned by the Accounts. All securities reported in this schedule 13G are owned by the Accounts. Pursuant to Rule 13d-4 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), SIA and SFI disclaim beneficial ownership of such securities.
Item 5.
Ownership of 5 Percent or Less of a Class.
Not Applicable
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.
The Accounts are known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities.
Except as may be indicated if this is a joint filing with a registered investment company managed by SIA or SFI, not more than 5% of the class of such securities is owned by any one Account subject to the investment advice of SIA or SFI.
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
Not Applicable
Item 8.
Identification and Classification of Members of the Group.
Not Applicable
Item 9.
Notice of Dissolution of Group.
Not Applicable
Item 10.
Certifications:
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.
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.
