Patrick Thompson's departure as Chief Financial Officer of MediaAlpha, Inc. was reported; the filing names no successor. As of November 6, 2026, MediaAlpha, Inc. has reported 2 leadership change filings to the SEC under Item 5.02 of Form 8-K, from May 18, 2026 to September 3, 2026, naming 1 departure (Form 8-K, September 3, 2026).
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MediaAlpha, Inc. reported changes in 2 filings among its directors and officers to the SEC on Form 8-K, Item 5.02, from 2026-05-18 to 2026-09-03. They name 1 person. Every row below is cited to the filing it comes from, and this page adds each new change as MediaAlpha, Inc. files it.
Also on the record for MediaAlpha, Inc.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| November 5, 2026 | Stake report, Schedule 13D/A, by White Mountains Insurance Group, Ltd. | 24.3% of the class | 5%+ stakes | Source |
| October 30, 2026 | Stake report, Schedule 13D/A, by White Mountains Insurance Group, Ltd. | 35.1% of the class | 5%+ stakes | Source |
| August 26, 2026 | Stake report, Schedule 13D/A, by Eugene Nonko | 9.8% of the class | 5%+ stakes | Source |
| July 28, 2026 | Stake report, Schedule 13G, by Divisadero Street Capital Management, LP | 5.8% of the class | 5%+ stakes | Source |
| May 1, 2026 | Stake report, Schedule 13D/A, by White Mountains Insurance Group, Ltd. | 33.03% of the class | 5%+ stakes | Source |
| November 12, 2025 | Stake report, Schedule 13G/A, by Insignia Capital Partners GP, L.L.C. | — | 5%+ stakes | Source |
| October 31, 2025 | Stake report, Schedule 13G/A, by The Vanguard Group | 4.61% of the class | 5%+ stakes | Source |
| August 8, 2025 | Stake report, Schedule 13D/A, by White Mountains Insurance Group, Ltd. | 31.7% of the class | 5%+ stakes | Source |
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More on MediaAlpha, Inc. and the records around it.
MediaAlpha, Inc. elsewhere on the record
- 5%+ stake filings Nov 2026
- Who owns it
Companies that share a holder
- Divisadero Street Capital Management, LP also filed stake reports on 22 other companies: Rush Street Interactive, Inc. (Sep 2026), Build-a-Bear Workshop, Inc (Aug 2026), Citi Trends, Inc. (Aug 2026)
- The Vanguard Group also filed stake reports on 2384 other companies: BellRing Brands, Inc. (Sep 2026), CAL-MAINE FOODS INC (Sep 2026), FTAI Aviation Ltd. (Sep 2026)
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Timeline
| Filed | In / out | Person | Role | Effective | Source |
|---|---|---|---|---|---|
| 2026-09-03 | Out | Chief Financial Officer | 8-K, 2026-09-03 | ||
| 2026-05-18 | Reported | not named in the filing | 8-K, 2026-05-18 |
Who leads MediaAlpha, 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 Financial Officer: Patrick Thompson, departure reported (filed 2026-09-03). No successor is named in these filings.
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Find candidates like Chief Financial Officer at MediaAlpha, Inc.Every change, in the filing's words
Departing: Patrick Thompson, Chief Financial Officer
(b) Departure of Chief Financial Officer On September 2, 2026, Patrick Thompson, the Company's Chief Financial Officer, principal financial officer and principal accounting officer, notified the Company of his intention to step down as Chief Financial Officer.
- (c) Appointment of Chief Financial Officer On September 2, 2026, the Board of Directors (the "Board") of MediaAlpha, Inc. (the "Company") approved the appointment of Tigran Sinanyan as Chief Financial Officer and Treasurer, principal financial officer and principal accounting officer effective October 1, 2026.
- The Company and Mr. Sinanyan entered into an Employment Agreement, the terms of which are described below.
- Tigran Sinanyan, age 44, has served as Senior Vice President, Finance and Corporate Development of the Company since July 2025.
- Mr. Sinanyan previously served as the Company's Chief Financial Officer from August 2015 to October 2021, and Vice President, Finance from January 2012 to August 2015.
- Prior to rejoining the Company, Mr. Sinanyan served as Chief Financial Officer of SmartFinancial, a digital insurance marketplace, from January 2025 to July 2025.
- From January 2022 to January 2025, Mr. Sinanyan served as an independent consultant and board member to several marketplace businesses in the performance marketing and ad tech sectors, spanning both insurance and non-insurance verticals.
- Mr. Sinanyan received a bachelor of science degree in Business Administration from the University of California, Berkeley, Haas School of Business.
Reported
(d) On May 15, 2026, the Board of Directors (the "Board") of MediaAlpha, Inc. (the "Company") appointed Lauren StClair as a member of the Board, filling the existing vacancy in Class I of the Board.
- Ms. StClair was also appointed as a member of the Company's Audit Committee.
- Since March 2025, Ms. StClair has served as Chief Financial Officer of Slice Technologies, Inc., a technology platform that empowers over 15,000 independent pizzerias with the technology, marketing, buying power, and shared services of a big chain without compromising their independence.
- Prior to this role, from December 2020 to March 2025, Ms. StClair was Chief Financial Officer of NerdWallet, Inc., a Nasdaq-listed personal finance website and app providing financial guidance to consumers and small businesses.
- Previously, from September 2007 to December 2020, Ms. StClair served in several senior finance positions with eBay, Inc., including Chief Financial Officer of eBay North America, Chief Financial Officer and Interim General Manager of StubHub International, and Director of Finance and Investor Relations.
- Ms. StClair holds a Bachelor of Science degree in Science, Technology and Society from Stanford University and a Master of Business Administration degree from Duke University's Fuqua School of Business.
- Ms. StClair's compensation will be consistent with that provided to the Company's non-employee directors pursuant to the Company's Non-Employee Director Compensation Policy.
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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.