Matthew Whitlock was named Chief Investment Officer of Chiron Real Estate Inc., succeeding Alfonzo Leon, effective August 3, 2026. As of November 6, 2026, Chiron Real Estate Inc. has reported 2 leadership change filings to the SEC under Item 5.02 of Form 8-K, from July 17, 2026 to August 3, 2026, naming 2 appointments and 1 departure (Form 8-K, August 3, 2026).
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Chiron Real Estate Inc. reported changes in 2 filings among its directors and officers to the SEC on Form 8-K, Item 5.02, from 2026-07-17 to 2026-08-03. They name 3 people, with 2 appointments and 1 departure. Every row below is cited to the filing it comes from, and this page adds each new change as Chiron Real Estate Inc. files it.
Also on the record for Chiron Real Estate Inc.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| October 30, 2026 | Stake report, Schedule 13G/A, by Vanguard Portfolio Management | 4.77% of the class | 5%+ stakes | Source |
| October 27, 2026 | Stake report, Schedule 13G, by BlackRock Portfolio Management LLC | 5.5% of the class | 5%+ stakes | Source |
| July 31, 2026 | Stake report, Schedule 13G, by Vanguard Portfolio Management | 5.03% of the class | 5%+ stakes | Source |
| March 26, 2026 | Stake report, Schedule 13G/A, by The Vanguard Group | — | 5%+ stakes | Source |
| November 14, 2025 | Stake report, Schedule 13G/A, by PRUDENTIAL FINANCIAL INC | 2.2% of the class | 5%+ stakes | Source |
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More on Chiron Real Estate Inc. and the records around it.
Chiron Real Estate Inc. elsewhere on the record
Companies that share a holder
- PRUDENTIAL FINANCIAL INC also filed stake reports on 20 other companies: National Healthcare Properties, Inc. (Oct 2026), Neurogene Inc. (Oct 2026), PALVELLA THERAPEUTICS, INC. (Aug 2026)
- BlackRock Portfolio Management LLC also filed stake reports on 118 other companies: AMERISAFE INC (Nov 2026), BlackRock ETF Trust (Nov 2026), iShares J.P. Morgan EM Local Currency Bond ETF (Nov 2026)
- Vanguard Portfolio Management also filed stake reports on 941 other companies: Newmark Group Inc (Nov 2026), A10 Networks Inc (Oct 2026), ADT Inc (Oct 2026)
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Timeline
| Filed | In / out | Person | Role | Effective | Source |
|---|---|---|---|---|---|
| 2026-08-03 | In | Chief Investment Officer | 2026-08-03 | 8-K, 2026-08-03 | |
| 2026-08-03 | Out | Chief Investment Officer | 2026-08-03 | 8-K, 2026-08-03 | |
| 2026-07-17 | In | Chief Operating Officer | 2026-07-16 | 8-K, 2026-07-17 |
Who leads Chiron Real Estate Inc., as last reported?
For each role that changed in the filings below, the most recent change reported. A role that did not change in these filings is not listed.
- Chief Investment Officer: Matthew Whitlock, appointed, effective 2026-08-03 (filed 2026-08-03).
- Chief Operating Officer: Aaron Roseth, appointed, effective 2026-07-16 (filed 2026-07-17).
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Appointed: Matthew Whitlock, Chief Investment Officer, effective 2026-08-03
Executive Appointment Effective August 3, 2026, Matthew Whitlock, age 62, was appointed as Chief Investment Officer of Chiron Real Estate Inc. (the "Company") and Inter-American Management LLC ("IAM").
Departing: Alfonzo Leon, Chief Investment Officer, effective 2026-08-03
Effective August 3, 2026, Alfonzo Leon ceased serving as Chief Investment Officer of the Company and IAM and transitioned to the role of Strategic Advisor, in which capacity he reports to the Company's Chief Executive Officer and will continue to be employed until no later than December 31, 2026 (the "Transition Period").
- In connection with Mr. Whitlock's appointment, Alfonzo Leon transitioned from Chief Investment Officer to the role of Strategic Advisor, as described below under "Transition of Chief Investment Officer." From 2019 until joining the Company, Mr. Whitlock served as Managing Director and Chief Investment Officer of Senior Housing Investments at Berkshire Residential Investments, where he sourced senior housing acquisitions and joint venture opportunities, managed Berkshire's senior housing investment fund and assisted in developing debt and equity investment products.
- He also served as a member of Berkshire's Investment Committee.
- From 2008 to 2019, Mr. Whitlock served in senior positions at CBRE, including as Vice Chairman and co-leader of its national senior housing platform.
- Mr. Whitlock received a Bachelor of Arts in Economics from Emory University.
- Mr. Whitlock will serve as Chief Investment Officer of the Company and IAM.
- Term The employment agreement provides for an initial three-year term commencing on August 3, 2026, with automatic renewals for successive one-year periods unless either party provides at least 90 days' advance notice of non-renewal.
- Mr. Whitlock is required to devote his best efforts and full time and attention to the businesses of the Company and its direct and indirect subsidiaries, subject to customary exceptions.
Appointed: Aaron Roseth, Chief Operating Officer, effective 2026-07-16
Executive Appointments Effective July 16, 2026, Robert "Bobby" Zeiller, age 56, was appointed as Chief Development Officer and Head of Seniors Housing of Chiron Real Estate Inc. (the "Company") and Inter-American Management LLC ("IAM"), and Aaron Roseth, age 51, was appointed as Chief Operating Officer of the Company and IAM.
- In connection with these appointments, Danica Holley transitioned from Chief Operating Officer to Chief Administrative Officer of the Company and IAM, effective July 16, 2026.
- Prior to joining the Company, Mr. Zeiller held various roles at Silverstone Senior Living over the past ten years, serving as Vice Chairman, Co-Chief Executive Officer and Chief Executive Officer.
- Prior to joining Silverstone Senior Living, Mr. Zeiller served as Executive Vice President of Westbrook Properties in Washington, D.C., and as Regional Vice President of Crescent Resources, LLC, where he was involved in residential investment, entitlement, development and construction activities.
- Throughout his career, Mr. Zeiller has worked on senior housing, multifamily, mixed-use and other real estate development projects.
- Mr. Zeiller holds a B.S. in Building Construction from Virginia Tech University and is a LEED Accredited Professional.
- Prior to joining the Company, Mr. Roseth served for more than two decades at ESG Architecture & Design, including as President and Chief Executive Officer during the last ten years of his tenure, where he led the firm's expansion from a predominantly regional practice into a national platform.
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Where this comes from
A public company must file a current report on Form 8-K with the SEC within four business days when a director leaves or is elected, or when its chief executive, chief financial, chief accounting or chief operating officer, or another named executive, departs or is appointed. That disclosure goes under Item 5.02 of the report.
Every change on this page is taken from one of those filings and quoted in the company's own words, with a link to the filing, so it can be checked at the source. Where a filing names the person, the role and the date a change takes effect, they are shown beside the quote. Where it does not, the quote stands on its own. A filing states what changed; it rarely states why, and neither does this page.