person · Reporting owner
Fitzsimons Catherine Michele
Disclosed activity across 1 company
Sign in to followReported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Horizon Quantum Holdings Ltd.HQ · Entity 5127 | CL and CO | June 12, 2026 | September 16, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
Horizon Quantum Holdings Ltd.
Report date June 12, 2026 · Filed September 16, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class A Ordinary SharesSEC Table I · non-derivative | Direct | 1,026 |
Ending reported balance
After 2026-09-12 transaction · row 2
2 source rows · reconciled sequenceRow 1 · 2026-09-12 · Exercise / conversion · Acquired 2,148 · Balance 2,148 F1: On September 12, 2026, 2,148 of Ms. Fitzsimons's RSU's vested. F2: On June 12, 2026 (the "Grant Date"), Ms. Fitzsimons was granted a total of 34,372 unvested restricted stock units ("RSUs"), each representing a contingent right to receive one Class A ordinary share, with no par value ("Class A Ordinary Share"), of Horizon Quantum Holdings Ltd. (the "Company") upon vesting, for no consideration.. The RSUs granted to Ms. Fitzsimons vest in sixteen approximately equal installments on successive quarterly anniversaries of the Grant Date and are subject to Ms. Fitzsimons's continued employment with the Company through each applicable vesting date. Row 2 · 2026-09-12 · Disposition to issuer · Disposed 1,122 · Balance 1,026 F1: On September 12, 2026, 2,148 of Ms. Fitzsimons's RSU's vested. F3: The reported disposition to the Company reflects the settlement in cash of a portion of the RSUs which vested on September 12, 2026, at a price per ordinary share of $15.22, the last reported sales price of the Company's Class A Ordinary Shares on September 11, 2026. |
| Restricted Stock UnitSEC Table II · derivative / convertible security · Conversion / exercise price $0.00 | Direct | 34,372 |
Reported balance
After 2026-06-12 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2026-06-12 · Grant · Acquired 34,372 · Balance 34,372 F2: On June 12, 2026 (the "Grant Date"), Ms. Fitzsimons was granted a total of 34,372 unvested restricted stock units ("RSUs"), each representing a contingent right to receive one Class A ordinary share, with no par value ("Class A Ordinary Share"), of Horizon Quantum Holdings Ltd. (the "Company") upon vesting, for no consideration.. The RSUs granted to Ms. Fitzsimons vest in sixteen approximately equal installments on successive quarterly anniversaries of the Grant Date and are subject to Ms. Fitzsimons's continued employment with the Company through each applicable vesting date. |
| Restricted Stock UnitSEC Table II · derivative / convertible security · Conversion / exercise price $0.00 | Direct | 32,224 |
Reported balance
After 2026-09-12 transaction · row 4
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 4 · 2026-09-12 · Exercise / conversion · Acquired 2,148 · Balance 32,224 F2: On June 12, 2026 (the "Grant Date"), Ms. Fitzsimons was granted a total of 34,372 unvested restricted stock units ("RSUs"), each representing a contingent right to receive one Class A ordinary share, with no par value ("Class A Ordinary Share"), of Horizon Quantum Holdings Ltd. (the "Company") upon vesting, for no consideration.. The RSUs granted to Ms. Fitzsimons vest in sixteen approximately equal installments on successive quarterly anniversaries of the Grant Date and are subject to Ms. Fitzsimons's continued employment with the Company through each applicable vesting date. F1: On September 12, 2026, 2,148 of Ms. Fitzsimons's RSU's vested. |
Filing footnotes · ownership attribution and instrument terms
F1: On September 12, 2026, 2,148 of Ms. Fitzsimons's RSU's vested.
F2: On June 12, 2026 (the "Grant Date"), Ms. Fitzsimons was granted a total of 34,372 unvested restricted stock units ("RSUs"), each representing a contingent right to receive one Class A ordinary share, with no par value ("Class A Ordinary Share"), of Horizon Quantum Holdings Ltd. (the "Company") upon vesting, for no consideration.. The RSUs granted to Ms. Fitzsimons vest in sixteen approximately equal installments on successive quarterly anniversaries of the Grant Date and are subject to Ms. Fitzsimons's continued employment with the Company through each applicable vesting date.
F3: The reported disposition to the Company reflects the settlement in cash of a portion of the RSUs which vested on September 12, 2026, at a price per ordinary share of $15.22, the last reported sales price of the Company's Class A Ordinary Shares on September 11, 2026.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 12, 2026 Filed Sep 16, 2026 01:32 UTC | Horizon Quantum Holdings Ltd. HQ · Entity 5127 | Exercise / conversionRestricted Stock Unit · Derivative | 2,148 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001213900-26-100283 · ownership.xml · derivative · entry 4 Fitzsimons Catherine Michele · CIK 0002123065 · CL and CO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 32,224 Underlying: Class A Ordinary Shares · 2,148 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: On June 12, 2026 (the "Grant Date"), Ms. Fitzsimons was granted a total of 34,372 unvested restricted stock units ("RSUs"), each representing a contingent right to receive one Class A ordinary share, with no par value ("Class A Ordinary Share"), of Horizon Quantum Holdings Ltd. (the "Company") upon vesting, for no consideration.. The RSUs granted to Ms. Fitzsimons vest in sixteen approximately equal installments on successive quarterly anniversaries of the Grant Date and are subject to Ms. Fitzsimons's continued employment with the Company through each applicable vesting date. F1 · shares: On September 12, 2026, 2,148 of Ms. Fitzsimons's RSU's vested. F1 · derivative.exercise_date: On September 12, 2026, 2,148 of Ms. Fitzsimons's RSU's vested. F2 · derivative.exercise_date: On June 12, 2026 (the "Grant Date"), Ms. Fitzsimons was granted a total of 34,372 unvested restricted stock units ("RSUs"), each representing a contingent right to receive one Class A ordinary share, with no par value ("Class A Ordinary Share"), of Horizon Quantum Holdings Ltd. (the "Company") upon vesting, for no consideration.. The RSUs granted to Ms. Fitzsimons vest in sixteen approximately equal installments on successive quarterly anniversaries of the Grant Date and are subject to Ms. Fitzsimons's continued employment with the Company through each applicable vesting date. F2 · derivative.expiration_date: On June 12, 2026 (the "Grant Date"), Ms. Fitzsimons was granted a total of 34,372 unvested restricted stock units ("RSUs"), each representing a contingent right to receive one Class A ordinary share, with no par value ("Class A Ordinary Share"), of Horizon Quantum Holdings Ltd. (the "Company") upon vesting, for no consideration.. The RSUs granted to Ms. Fitzsimons vest in sixteen approximately equal installments on successive quarterly anniversaries of the Grant Date and are subject to Ms. Fitzsimons's continued employment with the Company through each applicable vesting date. Read SEC document |
| September 12, 2026 Filed Sep 16, 2026 01:32 UTC | Horizon Quantum Holdings Ltd. HQ · Entity 5127 | Disposition to issuerClass A Ordinary Shares | 1,122 | $15.22 | $17,076.84 |
DisclosureSEC source: 0001213900-26-100283 · ownership.xml · nonDerivative · entry 2 Fitzsimons Catherine Michele · CIK 0002123065 · CL and CO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,026 F1 · date: On September 12, 2026, 2,148 of Ms. Fitzsimons's RSU's vested. F3 · shares: The reported disposition to the Company reflects the settlement in cash of a portion of the RSUs which vested on September 12, 2026, at a price per ordinary share of $15.22, the last reported sales price of the Company's Class A Ordinary Shares on September 11, 2026. F3 · price: The reported disposition to the Company reflects the settlement in cash of a portion of the RSUs which vested on September 12, 2026, at a price per ordinary share of $15.22, the last reported sales price of the Company's Class A Ordinary Shares on September 11, 2026. Read SEC document |
| September 12, 2026 Filed Sep 16, 2026 01:32 UTC | Horizon Quantum Holdings Ltd. HQ · Entity 5127 | Exercise / conversionClass A Ordinary Shares | 2,148 | $0.00 | $0.00 |
DisclosureSEC source: 0001213900-26-100283 · ownership.xml · nonDerivative · entry 1 Fitzsimons Catherine Michele · CIK 0002123065 · CL and CO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,148 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · date: On September 12, 2026, 2,148 of Ms. Fitzsimons's RSU's vested. F1 · shares: On September 12, 2026, 2,148 of Ms. Fitzsimons's RSU's vested. F2 · price: On June 12, 2026 (the "Grant Date"), Ms. Fitzsimons was granted a total of 34,372 unvested restricted stock units ("RSUs"), each representing a contingent right to receive one Class A ordinary share, with no par value ("Class A Ordinary Share"), of Horizon Quantum Holdings Ltd. (the "Company") upon vesting, for no consideration.. The RSUs granted to Ms. Fitzsimons vest in sixteen approximately equal installments on successive quarterly anniversaries of the Grant Date and are subject to Ms. Fitzsimons's continued employment with the Company through each applicable vesting date. Read SEC document |
| June 12, 2026 Filed Sep 16, 2026 01:32 UTC | Horizon Quantum Holdings Ltd. HQ · Entity 5127 | GrantRestricted Stock Unit · Derivative | 34,372 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001213900-26-100283 · ownership.xml · derivative · entry 3 Fitzsimons Catherine Michele · CIK 0002123065 · CL and CO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 34,372 Underlying: Class A Ordinary Shares · 34,372 shares Expires not disclosed F2 · derivative.exercise_price: On June 12, 2026 (the "Grant Date"), Ms. Fitzsimons was granted a total of 34,372 unvested restricted stock units ("RSUs"), each representing a contingent right to receive one Class A ordinary share, with no par value ("Class A Ordinary Share"), of Horizon Quantum Holdings Ltd. (the "Company") upon vesting, for no consideration.. The RSUs granted to Ms. Fitzsimons vest in sixteen approximately equal installments on successive quarterly anniversaries of the Grant Date and are subject to Ms. Fitzsimons's continued employment with the Company through each applicable vesting date. F2 · shares: On June 12, 2026 (the "Grant Date"), Ms. Fitzsimons was granted a total of 34,372 unvested restricted stock units ("RSUs"), each representing a contingent right to receive one Class A ordinary share, with no par value ("Class A Ordinary Share"), of Horizon Quantum Holdings Ltd. (the "Company") upon vesting, for no consideration.. The RSUs granted to Ms. Fitzsimons vest in sixteen approximately equal installments on successive quarterly anniversaries of the Grant Date and are subject to Ms. Fitzsimons's continued employment with the Company through each applicable vesting date. F2 · derivative.exercise_date: On June 12, 2026 (the "Grant Date"), Ms. Fitzsimons was granted a total of 34,372 unvested restricted stock units ("RSUs"), each representing a contingent right to receive one Class A ordinary share, with no par value ("Class A Ordinary Share"), of Horizon Quantum Holdings Ltd. (the "Company") upon vesting, for no consideration.. The RSUs granted to Ms. Fitzsimons vest in sixteen approximately equal installments on successive quarterly anniversaries of the Grant Date and are subject to Ms. Fitzsimons's continued employment with the Company through each applicable vesting date. F2 · derivative.expiration_date: On June 12, 2026 (the "Grant Date"), Ms. Fitzsimons was granted a total of 34,372 unvested restricted stock units ("RSUs"), each representing a contingent right to receive one Class A ordinary share, with no par value ("Class A Ordinary Share"), of Horizon Quantum Holdings Ltd. (the "Company") upon vesting, for no consideration.. The RSUs granted to Ms. Fitzsimons vest in sixteen approximately equal installments on successive quarterly anniversaries of the Grant Date and are subject to Ms. Fitzsimons's continued employment with the Company through each applicable vesting date. F2 · derivative.underlying_shares: On June 12, 2026 (the "Grant Date"), Ms. Fitzsimons was granted a total of 34,372 unvested restricted stock units ("RSUs"), each representing a contingent right to receive one Class A ordinary share, with no par value ("Class A Ordinary Share"), of Horizon Quantum Holdings Ltd. (the "Company") upon vesting, for no consideration.. The RSUs granted to Ms. Fitzsimons vest in sixteen approximately equal installments on successive quarterly anniversaries of the Grant Date and are subject to Ms. Fitzsimons's continued employment with the Company through each applicable vesting date. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.