Tri-State Generation & Transmission Reports Two Board Director Departures

What Happened Tri-State Generation & Transmission Association, Inc. filed an 8-K (Item 5.02) dated September 15, 2026, reporting two changes to its Board of Directors. On September 11, 2026, Lucas Bear, the director representing Northwest Rural Public Power District (NRPPD), unexpectedly passed away. On September 14, 2026, Tri-State was notified that Robert Brockman, the director representing Wheatland Rural Electric Association (Wheatland), stepped down from Wheatland’s board and therefore is no longer eligible to serve on Tri-State’s board under Tri-State’s Bylaws. Neither NRPPD nor Wheatland have yet named replacements.

Key Details

• Filing date: September 15, 2026 (Form 8-K, Item 5.02).
• Lucas Bear (NRPPD representative) died on September 11, 2026.
• Robert Brockman (Wheatland representative) stepped down from Wheatland’s board on/around September 14, 2026 and is therefore ineligible to remain on Tri-State’s board.
• Both director seats are currently vacant; successor representatives have not been identified by the member organizations.

Why It Matters Board vacancies affect governance and the representation of member utilities on Tri-State’s board. The filing does not disclose any changes to executive management, financial results, or operations. Investors and members should watch for follow-up announcements naming replacement directors, as those nominees will determine continued representation for NRPPD and Wheatland on Tri-State’s board.