Why is Grayscale executive Edward McGee leaving his CFO role at GSUI’s sponsor?

Edward McGee is stepping down from his positions at Grayscale Investments Sponsors, LLC effective July 2, 2026 for personal reasons. The filing states his departure is not due to any disagreement with the company or issues related to its operations, policies, or practices.

What new responsibilities will Kathryn Masci hold related to Grayscale Sui Staking ETF (GSUI)?

Effective July 2, 2026, Kathryn Masci becomes interim Co-Chief Financial Officer of Grayscale Investments Sponsors, LLC, joins its Board of Managers, and serves as Principal Financial and Accounting Officer of Grayscale Sui Staking ETF. Her role covers key finance, accounting, and governance responsibilities for the sponsor and ETF.

New interim finance leaders named for Grayscale Sui ETF (GSUI) sponsor

Filing Impact

(Moderate)

Filing Sentiment

(Neutral)

Form Type

8-K

Rhea-AI Filing Summary

Grayscale Sui Staking ETF reported leadership changes at its sponsor, Grayscale Investments Sponsors, LLC. Effective July 2, 2026, Kathryn Masci and Daniel Plourde are appointed interim Co-Chief Financial Officers of the sponsor, with Masci also becoming Principal Financial and Accounting Officer of the ETF and joining the sponsor’s Board of Managers.

They succeed Edward McGee, who is stepping down from his roles on the same date for personal reasons, which are stated as not related to the company’s operations, policies, or practices. The filing highlights Masci’s accounting and reporting background and Plourde’s two decades of financial services and ETF-related experience.

8-K Event Classification

Item 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers

1 item

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance

Key personnel changes including departures, elections, or appointments of directors and executive officers.

Key Figures

Effective date of leadership changes: July 2, 2026 McGee tenure: 7 years

2 metrics

Effective date of leadership changes July 2, 2026 Date Masci and Plourde became interim co-CFOs and McGee stepped down

McGee tenure 7 years Length of Edward McGee’s service at Grayscale before stepping down

Key Terms

Principal Financial and Accounting Officer, Board of Managers, Senior Vice President of Finance, emerging growth company

4 terms

Principal Financial and Accounting Officer financial

"Ms. Masci will also serve as Principal Financial and Accounting Officer of the registrant"

Board of Managers financial

"the appointment of Ms. Masci as a member of the Board of Managers of Grayscale Investments Sponsors, LLC"

Senior Vice President of Finance financial

"Kathryn Masci has served as Senior Vice President of Finance of Grayscale since January 2026"

A senior vice president of finance is a high-level executive responsible for overseeing a company's financial health, including budgeting, financial planning, and reporting. Think of this role as the company's financial captain, guiding decisions to ensure stability and growth. Investors pay attention because this person’s work directly affects the company's profitability and long-term success.

emerging growth company regulatory

"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.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google

Understanding 8-K Material Events →

Available on EDGAR 07/02/2026 - 04:38 PM Accepted by SEC EDGAR 07/02/2026 - 04:38 PM

FAQ

What leadership change did Grayscale Sui Staking ETF (GSUI) disclose?

Grayscale Sui Staking ETF disclosed that its sponsor appointed Kathryn Masci and Daniel Plourde as interim Co-Chief Financial Officers on July 2, 2026. Masci also became Principal Financial and Accounting Officer of the ETF, while both executives replace outgoing CFO Edward McGee at the sponsor.

What is the background of new interim co-CFO Kathryn Masci at Grayscale?

Kathryn Masci has been Senior Vice President of Finance at Grayscale since January 2026 and with the company since 2020. Her prior roles include finance and accounting positions at Grayscale, Garrison Capital, Pzena Investment Management, and Ernst & Young, and she is a Certified Public Accountant from New York.

What experience does new interim co-CFO Daniel Plourde bring to Grayscale and GSUI?

Daniel Plourde has over 20 years of financial services experience and has been Senior Vice President of Finance at Grayscale since January 2026. He previously held senior roles at Gabelli Asset Management, the Gabelli Funds Trusts, State Street Global Advisors, and the SPDR ETF Trusts in treasury and fund administration.

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): June 26, 2026

    

Grayscale Sui Staking ETF

(Exact name of Registrant as Specified in Its Charter)


Delaware	001-43131	99-6606736
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)

c/o Grayscale Investments Sponsors, LLC 290 Harbor Drive, 4th Floor
Stamford, Connecticut		06902
(Address of Principal Executive Offices)		(Zip Code)

     Registrant’s Telephone Number, Including Area Code: 212 668-1427

    

N/A

(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
Grayscale Sui Staking ETF Shares	GSUI	NYSE Arca, Inc.

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 any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On July 2, 2026, Grayscale Investments Sponsors, LLC (together with its affiliates as the context may require, “Grayscale”, or “the Company”), the sponsor of the registrant, announced that Grayscale Operating, LLC, the sole member of Grayscale Investments Sponsors, LLC, has approved the appointment of Kathryn Masci, Senior Vice President, Finance, and Daniel Plourde, Senior Vice President, Finance, to serve as Co-Chief Financial Officers of Grayscale Investments Sponsors, LLC on an interim basis, effective July 2, 2026 and the appointment of Ms. Masci as a member of the Board of Managers of Grayscale Investments Sponsors, LLC. Ms. Masci will also serve as Principal Financial and Accounting Officer of the registrant effective July 2, 2026. Ms. Masci and Mr. Plourde will succeed Edward McGee, the current Chief Financial Officer, Principal Financial and Accounting Officer and member of the Board of Managers of Grayscale Investments Sponsors, LLC, as applicable, who has decided to step down from his position effective July 2, 2026. Mr. McGee is stepping down for personal reasons and not due to any disagreement with the Company or any matter relating to Grayscale’s operations, policies or practices. He leaves the Company on good terms and Grayscale thanks him for his 7 years of service.

Kathryn Masci has served as Senior Vice President of Finance of Grayscale since January 2026 and has been with Grayscale since May 2020. Prior to serving as Senior Vice President of Finance, Ms. Masci held various finance and accounting roles at Grayscale. Prior to joining Grayscale, Ms. Masci served as Assistant Controller at Garrison Capital Inc., a publicly traded business development company, from July 2019 to May 2020. Before joining Garrison Capital, Ms. Masci served as a Senior Financial Reporting Associate at Pzena Investment Management, Inc., a publicly traded investment management firm, where she oversaw financial reporting and accounting policy from October 2016 to July 2019. From July 2014 to October 2016, Ms. Masci worked at Ernst & Young LLP in the Banking & Capital Markets and Professional Practice groups, providing audit and advisory services to financial services clients and supporting the consultation and accounting policy process for financial services audit teams. Ms. Masci earned her Bachelor of Science and Master of Science degrees in Accounting from the School of Management at Binghamton University, State University of New York. Ms. Masci is a Certified Public Accountant licensed in the state of New York.

Daniel Plourde has served as Senior Vice President of Finance of Grayscale since January 2026, after joining the firm as Vice President in September 2022, and has served as Assistant Treasurer of the Grayscale Funds Trust since 2025. Mr. Plourde has over 20 years of financial services experience, including senior roles in treasury, fund administration, and financial planning. Prior to joining Grayscale, Mr. Plourde served as Vice President at Gabelli Asset Management and Vice President of the Gabelli Funds Trusts. Previously, Mr. Plourde served as Vice President at State Street Global Advisors and Assistant Treasurer of the SPDR ETF Trusts. Mr. Plourde earned his Master of Business Administration with a concentration in Accounting from the University of Massachusetts Boston.

SIGNATURES

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 thereunto duly authorized.


			Grayscale Investments Sponsors, LLC, as Sponsor of Grayscale Sui Staking ETF

Date:	July 2, 2026	By:	/s/ Kathryn Masci
			Name: Kathryn Masci Title: Co-Chief Financial Officer (Principal Financial and Accounting Officer)*

* The Registrant is a trust and the identified person signing this report is signing in their capacity as an authorized officer of Grayscale Investments Sponsors, LLC, the Sponsor of the Registrant.

Source: View Original Filing on SEC EDGAR

Filing Exhibits & Attachments

1 document