Horizon Quantum (HQ) Officer Catherine Fitzsimons RSUs Vest, Sells Shares

What Happened
Catherine Michele Fitzsimons (listed as CL and CO — a company officer) received a grant of 34,372 restricted stock units (RSUs) on June 12, 2026, and 2,148 of those RSUs vested on September 12, 2026. The vested RSUs converted into shares (exercise/conversion of derivative at $0.00). Ms. Fitzsimons then settled part of the vested award back to the company — 1,122 shares were surrendered to the issuer for cash at $15.22 per share, generating proceeds of $17,077. The RSUs were granted as compensation (no cash paid).

Key Details

• Grant date and award: June 12, 2026 — 34,372 unvested RSUs granted, vesting in 16 roughly equal quarterly installments; grant price $0 (A = Award). (Footnote F2)
• Vesting/conversion: September 12, 2026 — 2,148 RSUs vested and were converted into 2,148 ordinary shares (M = exercise/conversion). (Footnote F1)
• Settlement/disposition: September 12, 2026 — 1,122 shares were disposed to the issuer for $15.22 per share, totaling $17,077 (D = disposition to issuer). The sale price used ($15.22) was the last reported sale price on September 11, 2026. (Footnote F3)
• Net from this vesting event: 2,148 shares vested → 1,122 shares cash-settled → net 1,026 shares likely issued to Ms. Fitzsimons (based on these numbers).
• Shares owned after transaction: not specified in the provided data.
• Filing timeliness: no late-filing flag provided in the materials supplied.

Context

• These RSUs are compensation-related awards; the conversion at $0.00 means no exercise price was paid — the RSUs simply vested into ordinary shares.
• The disposition to the issuer appears to be a cash settlement/withholding of part of the vested RSUs (common for tax withholding) rather than an open-market sale — the filing notes the company paid cash equal to the vested share value using the prior close price. Such settlements are routine and do not necessarily indicate the insider’s market view.
• Codes used in the filing: A = Award/Grant, M = Exercise/Conversion of derivative, D = Disposition to issuer (cash settlement).