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Equibles

Katherine Koster

Board Member

Polar Power, Inc. (POLA)

Personal wealth note: Equibles reports source-backed professional activity and disclosed compensation; it does not estimate personal net worth.

About Katherine Koster

Katherine Koster is recorded as Board Member at Polar Power, Inc. (POLA). Polar Power, Inc. reported in an 8-K filed May 22, 2026 that Katherine Koster resigned as independent director, effective May 19, 2026. Polar Power, Inc. reported in an 8-K filed May 14, 2026 that Katherine Koster resigned as independent director, effective May 19, 2026. Polar Power, Inc. reported in an 8-K filed December 16, 2025 that Katherine Koster was appointed director, effective December 15, 2025. Equibles holds 4 filed executive changes naming Katherine Koster; each is listed under recent activity with its source filing.

“As previously disclosed, on May 14, 2026, Keith Albrecht and Katherine Koster, two of the Company's independent directors, resigned as members of the Board of the Company, effective May 19, 2026.”
Polar Power, Inc. Form 8-K, filed May 22, 2026 · Read the filing
“On May 14, 2026, Keith Albrecht and Katherine Koster, two of the Company’s independent directors, resigned as members of the Board of the Company, effective May 19, 2026.”
Polar Power, Inc. Form 8-K, filed May 14, 2026 · Read the filing

Summary generated from SEC filings and earnings-call records held by Equibles.

Affiliation history

Recorded current and former roles; source labels appear when available.

Company network

Recorded roles and call appearances connecting this person to public companies.

Leadership on record at Polar Power, Inc.

Other people whose current roles at this company are on record from its filings.

Recent activity

Earnings-call and investor-event appearances, plus filed executive appointments or departures, newest first.