Gabelli Healthcare & WellnessRx Trust (NYSE: GRX) outlines leadership roles amid Mario Gabelli’s recovery

Rhea-AI Filing Summary

The Gabelli Healthcare & WellnessRx Trust reported a leadership update following a medical incident involving Trustee and Chief Investment Officer Mario J. Gabelli, who was hospitalized on March 19, 2026 and is recovering, though his return date is unknown. GAMCO’s long-standing succession plan was implemented on March 22, 2026, naming Christopher J. Marangi as President of GAMCO. Day-to-day operations of GAMCO will continue to be led by co-CEO Douglas R. Jamieson and Mr. Marangi, while Gabelli Value team Co-Chief Investment Officers Kevin V. Dreyer and Mr. Marangi lead the Fund’s portfolio management during Mr. Gabelli’s absence.

Insights

Closed-end fund governance analyst

Fund discloses Mario Gabelli’s absence and activates an established succession plan.

The filing explains that Mario J. Gabelli, a central investment figure for the fund and its adviser, is temporarily absent after a medical incident. In response, GAMCO activated a succession plan that has been in place for several years, indicating prior planning rather than an improvised move.

Operationally, leadership is shared among Douglas R. Jamieson and Christopher J. Marangi at GAMCO, with portfolio management for the fund handled by Gabelli Value team Co-Chief Investment Officers Kevin V. Dreyer and Mr. Marangi. This structure suggests continuity of investment process while acknowledging uncertainty about Mr. Gabelli’s return timing.

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 Form 8-K date: May 7, 2026 +1 more

4 metrics

Medical incident date March 19, 2026 Date of Mario J. Gabelli’s medical incident

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

Form 8-K date May 7, 2026 Date of the GRX current report

Trading symbol GRX Common shares listed on NYSE

Key Terms

succession plan, Chief Investment Officer, Registration Statement, emerging growth company, +1 more

5 terms

succession plan financial

"GAMCO, the parent company of the Fund’s adviser... implemented GAMCO’s succession plan that has been in place for several years."

Chief Investment Officer financial

"Mario J. Gabelli... Trustee, Chairman and Chief Investment Officer of the Fund"

A chief investment officer (CIO) is the person responsible for managing a company or organization’s investments and financial strategies. They make key decisions about where to put money to help grow wealth or achieve financial goals, much like a coach plans a team’s game strategy. Their work matters to investors because it influences how effectively an organization’s assets are used to generate returns.

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.

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.

Common Share of Beneficial Interest financial

"Title of each class... Common Share of Beneficial Interest"

A common share of beneficial interest is an ownership stake that gives the holder the economic rights of a regular common share—such as receiving dividends and sharing in any gains or losses—while the legal title may be held by a trustee or nominee on the holder’s behalf. Think of it like owning the fruit from a tree someone else legally cares for: you get the benefits and voting power tied to the tree’s output. Investors care because these shares determine entitlement to income, influence over company decisions, and exposure to the company’s financial performance.

Understanding 8-K Material Events →

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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 Healthcare & Wellness^Rx Trust

(Exact name of registrant as specified in its charter)

Delaware		811-22021		87-0802328
(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 Share of Beneficial Interest		GRX		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).

1

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

2

FAQ

What did Gabelli Healthcare & WellnessRx Trust (GRX) disclose about Mario Gabelli?

The trust reported that Mario J. Gabelli experienced a medical incident on March 19, 2026 and was hospitalized for observation and testing. His condition is improving and he is on the road to recovery, but the timing of his return to duties is not yet known.

How is GAMCO’s succession plan affecting GRX’s management structure?

GAMCO implemented its pre-existing succession plan on March 22, 2026, naming Christopher J. Marangi as President of GAMCO. Day-to-day operations are being led by co-CEO Douglas R. Jamieson and Mr. Marangi, providing an organized leadership framework during Mario Gabelli’s absence.

Who is managing the Gabelli Healthcare & WellnessRx Trust portfolio during Mario Gabelli’s absence?

Portfolio management responsibilities for the fund are being handled by Gabelli Value team Co-Chief Investment Officers Kevin V. Dreyer and Christopher J. Marangi. This team-based approach is intended to maintain the fund’s investment oversight while Mario J. Gabelli remains away from day-to-day portfolio duties.

Does the GRX Form 8-K indicate any change to day-to-day operations at GAMCO?

The filing states that day-to-day operations of GAMCO will continue to be led by co-CEO Douglas R. Jamieson and President Christopher J. Marangi. This suggests regular business functions are expected to proceed under their leadership while Mario J. Gabelli recovers.

How does the GRX filing relate to its Registration Statement?

The fund states that the information in this Form 8-K, including details about leadership and succession, is incorporated by reference into its effective Registration Statement. That means these disclosures become part of the official offering and disclosure record for the fund.

Filing Exhibits & Attachments

3 documents

Other Documents

• EX-101 XBRL SCHEMA FILE 3.0 KB
• EX-101 XBRL LABEL FILE 33.4 KB
• EX-101 XBRL PRESENTATION FILE 21.8 KB