Mario Gabelli health update and leadership shift at Gabelli Multimedia (GGT)

Q: What roles does Mario J. Gabelli hold related to GGT and GAMCO?

Mario J. Gabelli is Trustee, Chairman and Chief Investment Officer of the Fund. He is also Chairman, Co-Chief Executive Officer and Chief Investment Officer – Value Portfolios of GAMCO Investors, Inc., and Chief Investment Officer – Value Portfolios of Gabelli Funds, LLC and GAMCO Asset Management, Inc.

Filing Impact

(Moderate)

Filing Sentiment

(Neutral)

Form Type

8-K

Rhea-AI Filing Summary

The Gabelli Multimedia Trust Inc. reported that Mario J. Gabelli, the Fund’s Trustee, Chairman and Chief Investment Officer, experienced a medical incident on March 19, 2026 and was hospitalized for observation and testing. His condition is described as improving and he is on the road to recovery, but there is no defined timeline for his return.

On March 22, 2026, GAMCO Investors, Inc., the parent of the Fund’s adviser, activated its long-standing succession plan. Under this plan, Christopher J. Marangi was named President of GAMCO, and day-to-day operations will continue to be led by co-CEO Douglas R. Jamieson and Mr. Marangi. The Gabelli Value team Co-Chief Investment Officers, Kevin V. Dreyer and Christopher J. Marangi, are leading the Fund’s portfolio management team during Mr. Gabelli’s absence.

Insights

Key-person risk is highlighted, but a pre-existing succession plan is in place.

The disclosure centers on Mario J. Gabelli’s medical incident and temporary absence from his roles with the Fund and its adviser. While his condition is improving, the timeline for his return is not yet known, which underscores key-person dependency for the Gabelli complex.

However, GAMCO activated a succession plan that had been in place for several years, appointing Christopher J. Marangi as President and confirming that day-to-day operations are led by co-CEO Douglas R. Jamieson and Mr. Marangi. The Fund’s portfolio management is led by Co-Chief Investment Officers Kevin V. Dreyer and Mr. Marangi during the absence.

The filing also notes that this information is incorporated by reference into the Fund’s effective registration statement, ensuring that current and prospective investors reviewing offering documents see the updated leadership and portfolio management arrangements.

8-K Event Classification

2 items: 8.01, 9.01

2 items

Item 8.01 Other Events Other

Voluntary disclosure of events the company deems important to shareholders but not covered by other items.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

Key Figures

Medical incident date: March 19, 2026 Succession plan activation date: March 22, 2026 Filing date: May 7, 2026

3 metrics

Medical incident date March 19, 2026 Date of Mario J. Gabelli’s medical incident in New York City events

Succession plan activation date March 22, 2026 Date GAMCO implemented its long-standing succession plan

Filing date May 7, 2026 Date of the current report by The Gabelli Multimedia Trust Inc.

Key Terms

succession plan, emerging growth company, Registration Statement, Cumulative Preferred Stock

4 terms

succession plan financial

"On March 22, 2026, GAMCO, the parent company of the Fund’s adviser, Gabelli Funds, LLC implemented GAMCO’s succession plan that has been in place for several years."

emerging growth company regulatory

"405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company"

An emerging growth company is a recently public or smaller public firm that qualifies for temporary, lighter regulatory and disclosure rules to reduce the cost and effort of being public. For investors, it means the company may provide less historical financial detail and face fewer reporting requirements than larger firms, so it can grow more quickly but also carries higher uncertainty—like buying a promising early-stage product with fewer user reviews.

Registration Statement regulatory

"The Fund incorporates the information included in this Item 8.01 by reference into its effective Registration Statement."

A registration statement is a formal document that companies file with a government agency to offer new shares of stock to the public. It provides essential information about the company's finances, operations, and risks, helping investors make informed decisions. Think of it as a detailed product description that ensures transparency and trust before buying into a company.

Cumulative Preferred Stock financial

Cumulative preferred stock is a type of share that pays fixed dividends and creates an obligation for the company to repay any missed dividend payments later; if the firm skips a dividend, those unpaid amounts build up like an IOU and must be paid to these shareholders before common shareholders receive dividends. Investors care because it offers steadier income and higher priority in the payout order, making it less risky than common stock but still subject to company solvency and interest-rate shifts.

Understanding 8-K Material Events →

05/07/2026 - 05:07 PM

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) May 7, 2026

The Gabelli Multimedia Trust Inc.

(Exact name of registrant as specified in its charter)

Maryland

811-08476

13-3767317

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

One Corporate Center, Rye, New York		10580
(Address of principal executive offices)		(Zip Code)

Registrants telephone number, including area code (800) 422-3554

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

	☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
	☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
	☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
	☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock	GGT	New York Stock Exchange
5.125% Series G Cumulative Preferred Stock	GGT Pr G	New York Stock Exchange
5.125% Series E Cumulative Preferred Stock	GGT Pr E	New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

☐ Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01.

Other Events

As previously announced by GAMCO Investors, Inc. (“GAMCO”) on March 23, 2026, Mario J. Gabelli (“Mr. Gabelli”), Trustee, Chairman and Chief Investment Officer of the Fund, and Chairman, Co-Chief Executive Officer, and Chief Investment Officer – Value Portfolios of GAMCO Investors, Inc. and Chief Investment Officer – Value Portfolios of Gabelli Funds, LLC and GAMCO Asset Management, Inc., was admitted to the hospital for observation and testing after a medical incident March 19, 2026, following a busy day of events around New York City. His condition is improving and he is on the road to recovery, but the timeline for his return is not yet known.

On March 22, 2026, GAMCO, the parent company of the Fund’s adviser, Gabelli Funds, LLC (the “Adviser”), implemented GAMCO’s succession plan that has been in place for several years. In accordance with that plan, Christopher J. Marangi was named President of GAMCO on March 22, 2026.

While the timeline for Mr. Gabelli’s return remains undetermined, the day-to-day operations of GAMCO will continue to be led by co-CEO, Douglas R. Jamieson, and Christopher J. Marangi.

The Gabelli Value team Co-Chief Investment Officers Kevin V. Dreyer and Christopher J. Marangi lead the portfolio management team for the Fund during Mr. Gabelli’s absence.

The Fund incorporates the information included in this Item 8.01 by reference into its effective Registration Statement.

Item 9.01

Financial Statements and Exhibits.

(d)

Exhibits

104

Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	THE GABELLI MULTIMEDIA TRUST INC.

Date: May 7, 2026	By:	/s/ John C. Ball
	Name:	John C. Ball
	Title:	President and Treasurer

Source: View Original Filing on SEC EDGAR

FAQ

What event did The Gabelli Multimedia Trust (GGT) disclose in this 8-K?

The fund disclosed that Mario J. Gabelli suffered a medical incident on March 19, 2026 and was hospitalized for observation and testing. His condition is improving, but there is no stated timetable yet for his return to his investment and leadership roles.

How is GAMCO’s succession plan affecting GGT after Mario Gabelli’s medical incident?

GAMCO activated a succession plan that had been in place for several years. On March 22, 2026, Christopher J. Marangi was named President of GAMCO, and he and co-CEO Douglas R. Jamieson are leading day-to-day operations for the adviser organization.

Who is managing The Gabelli Multimedia Trust (GGT) portfolios during Mario Gabelli’s absence?

During Mario Gabelli’s absence, the Fund’s portfolio management team is led by the Gabelli Value team Co-Chief Investment Officers, Kevin V. Dreyer and Christopher J. Marangi. This structure is intended to maintain continuity in the Fund’s investment management approach while he recovers.

How does this 8-K affect GGT’s existing registration statement?

The Fund states that the information about Mario Gabelli’s condition, the succession plan, and current leadership is incorporated by reference into its effective registration statement. This ensures regulatory offering documents reflect the updated management and governance details for prospective investors.

When did GGT’s adviser implement the succession plan described in the filing?

GAMCO, the parent of the Fund’s adviser, implemented its long-standing succession plan on March 22, 2026. On that date, Christopher J. Marangi was named President of GAMCO, and operational leadership arrangements for the adviser were formally clarified in light of Mario Gabelli’s medical absence.

Filing Exhibits & Attachments

4 documents

Mario Gabelli health update and leadership shift at Gabelli Multimedia (GGT)

Rhea-AI Filing Summary

Positive

Negative