Debt Repayment

Quarterhill Repays CAD $57.5M Convertible Debentures at Maturity

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Quarterhill Repays CAD $57.5M Convertible Debentures at Maturity

TORONTO – October 30, 2026 -- Quarterhill Inc. (TSX: QTRH; OTCQX: QTRHF) has repaid in full the CAD $57.5 million aggregate principal amount of its 6.0% convertible unsecured subordinated debentures, together with all accrued and unpaid interest, on the October 30, 2026 maturity date.

Computershare processed the payout as debenture trustee

Payment was handled through Computershare Trust Company of Canada, which acted as debenture trustee. The repayment retires the entire issue, leaving no principal outstanding on the instruments.

QTRH.DB delists from the Toronto Stock Exchange at the close on October 30

The debentures traded on the Toronto Stock Exchange under the symbol QTRH.DB (CUSIP 747713AA3). Their delisting takes effect at the close of markets on October 30, 2026, the same day as maturity.