CHESAPEAKE ENERGY CORPORATION

Shareholders of Chesapeake Energy Corporation (now Expand Energy Corporation)

The company registry extract dated 4 September 2026 lists five institutional shareholders out of 20 total shareholders on record, consistent with a Schedule 13F/13D/13G institutional-ownership feed for a Nasdaq-listed company rather than a complete share register. The largest disclosed holder is Blackstone Inc, reported at approximately 13.2% (12,665,899 ordinary shares); this is broadly consistent with the large equity position Blackstone Holdings III acquired in the company’s predecessor, Chesapeake Energy Corporation, through its 2021 Chapter 11 restructuring, and subsequently adjusted in later disclosures and reported by financial media. Other disclosed holders are T. Rowe Price Investment Management, Inc. (approximately 6.0%), ClearBridge Investments, LLC (approximately 3.0%), Vanguard/Wellington Fund Inc. (approximately 2.0%) and Vanguard Extended Market Index Fund (approximately 1.5%). All five are companies rather than individuals, and each position is reported as a direct institutional holding rather than an interest arising from a corporate parent-subsidiary relationship.

Data availability

Shareholder disclosure for this Nasdaq-listed company is best described as major shareholders only: institutional investors report positions through SEC beneficial-ownership filings once thresholds are crossed, so the five holders shown are the largest of 20 recorded rather than a complete beneficial-ownership register, and smaller institutional and retail holders are not reflected. Because every disclosed holder is itself a company, no individual ultimate beneficial owner can be identified from this data alone; establishing one would require tracing ownership within each institutional holder, which falls outside the scope of a single company’s own filings.

Sources

• SEC EDGAR, filings for Chesapeake Energy Corporation / Expand Energy Corporation, CIK 0000895126 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000895126 — retrieved 11 September 2026
• Nasdaq.com, “Blackstone Holdings III Cuts Stake in Chesapeake Energy (CHK)” — https://www.nasdaq.com/articles/blackstone-holdings-iii-cuts-stake-in-chesapeake-energy-chk — retrieved 11 September 2026
• Company registry shareholder extract, verified_at 4 September 2026

Directors and officers of Chesapeake Energy Corporation (now Expand Energy Corporation)

Independent verification confirms three of the individuals named in the underlying state officer record as current or recently serving executives of this company, now operating as Expand Energy Corporation. Michael Wichterich, previously Chairman of the Board, was appointed Interim President and Chief Executive Officer on 6 February 2026, succeeding Domenic J. Dell’Osso, Jr., who stepped down as President, Chief Executive Officer and a director on the same date; Dell’Osso was subsequently appointed President and Chief Executive Officer of Gulfport Energy Corporation, an unrelated company, effective 28 May 2026, and is accordingly a former rather than current officer of this company. Joshua J. Viets has served as Executive Vice President and Chief Operating Officer since his appointment effective 1 February 2022 and remains in that role. The board has stated that a search for a permanent Chief Executive Officer is under way. Two further names appearing in the underlying state filing, Alan LaVenue and Zac Graves, could not be independently corroborated against the company’s SEC disclosures or official investor communications as current officers of this entity and are therefore not described further here.

Recent officer changes

• 6 February 2026 — Domenic J. Dell’Osso, Jr. departed as President, Chief Executive Officer and director; Michael Wichterich (Chairman) appointed Interim President and Chief Executive Officer. Source: Expand Energy Corporation investor announcement / Form 8-K, 9 February 2026.
• 28 May 2026 — Domenic J. Dell’Osso, Jr. appointed President and Chief Executive Officer of Gulfport Energy Corporation, confirming his departure from this company. Source: Gulfport Energy Corporation press release.
• 1 February 2022 — Joshua J. Viets appointed Executive Vice President and Chief Operating Officer. Source: Chesapeake Energy Corporation Form 8-K exhibit, 25 January 2022.

Data availability

Officer information for this Oklahoma corporation is partial: state corporate filings typically list a limited set of officer roles and do not always reflect the most recent executive changes promptly, while nationality is not disclosed in either the state filing or the company’s SEC filings and is therefore not stated here. Correspondence addresses shown in the state record (6100 North Western Avenue, Oklahoma City, OK 73118) are service addresses only and should not be read as evidence of any officer’s residence or nationality.

Sources

• SEC EDGAR, Form 8-K exhibit, Expand Energy Corporation, filed 9 February 2026 — https://www.sec.gov/Archives/edgar/data/895126/000089512626000003/exe-ex_991x20260209x8kxpr.htm
• Expand Energy Corporation investor press release, “Expand Energy Announces Headquarters Relocation to Houston and Appointment of Michael Wichterich as Interim CEO,” 9 February 2026 — https://investors.expandenergy.com/news-releases/news-release-details/expand-energy-announces-headquarters-relocation-houston-and
• Gulfport Energy Corporation press release, “Gulfport Energy Appoints Domenic J. Dell’Osso, Jr. Chief Executive Officer,” May 2026 — https://www.gulfportenergy.com/news/press-releases/detail/1428/gulfport-energy-appoints-domenic-j-dellosso-jr-chief
• SEC EDGAR, Form 8-K exhibit, Chesapeake Energy Corporation, 25 January 2022 — https://www.sec.gov/Archives/edgar/data/895126/000089512622000009/ex9912022-01x25prreevpcoo.htm
• Expand Energy Corporation, Management Team page — https://www.expandenergy.com/about/management-team/ — retrieved 11 September 2026

Group structure of Chesapeake Energy Corporation (now Expand Energy Corporation)

This company, now operating as Expand Energy Corporation, is a publicly traded Oklahoma corporation with no identified corporate parent; it is the top entity in its own group, and no source reviewed indicates another company holding a controlling interest in it. The underlying registry record’s statement that no parent, subsidiary or ownership linkage is available does not reflect the company’s actual disclosed structure: its most recent annual report, a Form 10-K for the year ended 31 December 2025, discloses five significant subsidiaries, all organized in the United States. The company’s principal country of operation is the United States, with core assets in the Appalachian Basin and the Haynesville Shale.

Verified corporate relationships

Recent structural changes

• 1 October 2024 — Completed combination with Southwestern Energy Company; combined group rebranded as Expand Energy Corporation. Source: Form 8-K, 1 October 2024.

Data availability

Corporate-linkage information for this company is partial: its Form 10-K exhibit discloses only subsidiaries meeting SEC significance thresholds and excludes smaller subsidiaries and any specific ownership percentages, so the table above should not be read as an exhaustive list of every entity in the group. No parent company above this entity has been identified from any source reviewed.

Sources

• SEC EDGAR, Form 10-K, Exhibit 21 (Significant Subsidiaries), Expand Energy Corporation, fiscal year 2025 — https://www.sec.gov/Archives/edgar/data/895126/000089512626000011/exe-ex_21x20251231x10k.htm — retrieved 11 September 2026
• SEC EDGAR, Form 8-K, Expand Energy Corporation, filed 1 October 2024 — https://www.sec.gov/Archives/edgar/data/895126/000110465924104976/tm2425151d1_8k.htm