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CALAMOS CONVERTIBLE & HIGH INCOME FUND (CHY) has a large shareholder disclosure for its Series H Mandatory Redeemable Preferred Shares. BlackRock Portfolio Management LLC reports shared beneficial ownership of 290,000 Series H preferred shares, representing 50% of this class, based on 580,000 shares outstanding. BlackRock has shared voting and dispositive power over 290,000 shares and no sole voting or dispositive power. The reporting person is organized in Delaware and files on behalf of specified BlackRock business units.
Key Figures
Series H shares beneficially owned:290,000 sharesPercent of Series H class:50%Series H shares outstanding:580,000 shares+3 more
6 metrics
Series H shares beneficially owned290,000 sharesSeries H Mandatory Redeemable Preferred Shares reported as beneficially owned by BlackRock Portfolio Management LLC
Percent of Series H class50%Portion of Series H Mandatory Redeemable Preferred Shares class beneficially owned
Series H shares outstanding580,000 sharesOutstanding Series H Mandatory Redeemable Preferred Shares used to calculate ownership percentage
Sole voting power0 sharesShares over which BlackRock Portfolio Management LLC has sole power to vote
Shared voting power290,000 sharesShares over which BlackRock Portfolio Management LLC has shared power to vote
Shared dispositive power290,000 sharesShares over which BlackRock Portfolio Management LLC has shared power to dispose
Key Terms
Series H Mandatory Redeemable Preferred Shares, beneficial ownership, dispositive power, Schedule 13G, +1 more
5 terms
Series H Mandatory Redeemable Preferred Sharesfinancial
"Title of class of securities: Series H Mandatory Redeemable Preferred Shares"
beneficial ownershipfinancial
"may be deemed to share beneficial ownership of 290,000 shares"
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.
dispositive powerfinancial
"Shared Dispositive Power 290,000.00"
Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.
Schedule 13Gregulatory
"This statement is filed on behalf of BlackRock Portfolio Management LLC"
A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.
Investment Company Act of 1940regulatory
"investment company registered under the Investment Company Act of 1940"
A U.S. federal law that sets the rulebook for pooled investment vehicles such as mutual funds, exchange-traded funds and similar money managers, requiring them to register with regulators, disclose holdings and fees, limit conflicts of interest, and follow governance standards. It matters to investors because these protections and transparency rules act like a referee and scoreboard, helping people compare funds, trust that managers follow fair practices, and spot hidden costs or risks.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What ownership in CHY’s Series H preferred shares does BlackRock report on this Schedule 13G?
BlackRock Portfolio Management LLC reports beneficial ownership of 290,000 Series H Mandatory Redeemable Preferred Shares of CALAMOS CONVERTIBLE & HIGH INCOME FUND (CHY), representing 50% of that preferred share class, based on 580,000 Series H shares outstanding.
What voting and dispositive power does BlackRock have over CHY’s Series H preferred shares?
BlackRock Portfolio Management LLC reports 0 shares with sole voting or dispositive power and 290,000 shares with shared voting power and shared dispositive power over CALAMOS CONVERTIBLE & HIGH INCOME FUND’s Series H preferred shares.
How large is CHY’s Series H Mandatory Redeemable Preferred Shares class?
The filing states that the percentage ownership is based on 580,000 Series H Mandatory Redeemable Preferred Shares outstanding of CALAMOS CONVERTIBLE & HIGH INCOME FUND, against which BlackRock’s 290,000 shares represent a 50% stake in that class.
Who is the reporting person on this Schedule 13G for CHY?
The reporting person is BlackRock Portfolio Management LLC, organized under the laws of the State of Delaware. The statement reflects securities beneficially owned, or deemed beneficially owned, by certain business units of BlackRock, Inc. and its subsidiaries and affiliates.
Where are CHY and the reporting person headquartered?
CALAMOS CONVERTIBLE & HIGH INCOME FUND’s principal executive offices are at 2020 Calamos Court, Naperville, IL 60563. BlackRock Portfolio Management LLC’s business address is 50 Hudson Yards, New York, NY 10001.
Does any other person have rights to dividends or sale proceeds from CHY shares mentioned in the filing?
The filing states that various persons have the right to receive or direct the receipt of dividends or sale proceeds for shares of Calamos Convertible & High Income Fund, and identifies certain insurance companies whose interests each relate to more than 5% of the fund’s total outstanding shares.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
Calamos Convertible & High Income Fund
(Name of Issuer)
Series H Mandatory Redeemable Preferred Shares
(Title of Class of Securities)
12811P*83
(CUSIP Number)
08/31/2026
(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):
12811P*83
1
Names of Reporting Persons
BlackRock Portfolio Management 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
290,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
290,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
290,000.00
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)
50 %
12
Type of Reporting Person (See Instructions)
HC
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
Calamos Convertible & High Income Fund
(b)
Address of issuer's principal executive offices:
2020 Calamos Court, Naperville, IL, 60563
Item 2.
(a)
Name of person filing:
This statement is filed on behalf of BlackRock Portfolio Management LLC (the "Reporting Person").
In accordance with SEC Release No. 34-39538 (January 12, 1998), this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by certain business units (collectively, the "Reporting Business Units") of BlackRock, Inc. and its subsidiaries and affiliates. It does not include securities, if any, beneficially owned by other business units whose beneficial ownership of securities are disaggregated from that of the Reporting Business Units in accordance with such release.
(b)
Address or principal business office or, if none, residence:
The business address of the Reporting Person is 50 Hudson Yards, New York, NY 10001.
(c)
Citizenship:
The Reporting Person is organized under the laws of the State of Delaware.
(d)
Title of class of securities:
Series H Mandatory Redeemable Preferred Shares
(e)
CUSIP Number(s):
12811P*83
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:
The Reporting Person may be deemed to share beneficial ownership of 290,000 shares of the Issuer's Series H Mandatory Redeemable Preferred Shares. The percentage reflected herein is based on 580,000 Series H Mandatory Redeemable Preferred Shares outstanding.
(b)
Percent of class:
50%
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
0
(ii) Shared power to vote or to direct the vote:
290,000
(iii) Sole power to dispose or to direct the disposition of:
0
(iv) Shared power to dispose or to direct the disposition of:
290,000
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.
Various persons have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the shares of Calamos Convertible & High Income Fund. No one person's interest in the shares of Calamos Convertible & High Income Fund is more than five percent of the total outstanding shares, except for (i) The Guardian Life Insurance Company of America, (ii) The Guardian Insurance & Annuity Company, Inc., and (iii) Midland National Life Insurance Company.
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.
See Exhibit 99.1
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.
BlackRock Portfolio Management LLC
Signature:
/s/ Joseph Virgilio
Name/Title:
Joseph Virgilio, Attorney-in-fact
Date:
09/08/2026
Exhibit Information
Exhibit 24.1: Power of Attorney
Exhibit 99.1: Item 7
