Horizon Quantum Holdings Pte LTD

Insider Trading (Form 4)

NASDAQ
Horizon Quantum Holdings Director Danielle Lambert acquired 84,602 Class A Ordinary Shares for approximately $1 million through Penchant Family Holdings LLC following the company's business combination.
NASDAQ
Horizon Quantum Holdings' Chief Science Officer, Si-Hui Tan, reported the exchange of 500,000 stock options into new company options following a business combination.
NASDAQ
Horizon Quantum Holdings Ltd. CFO Greg Gould reported the exchange of 285,300 Legacy Horizon stock options for equivalent company options following a business combination.
NASDAQ
Horizon Quantum Holdings CEO Joseph Fitzsimons acquired 19.7 million Class B Ordinary Shares following the closing of a business combination.
NASDAQ
Harry L. You, a Director and 10% Owner, reported the acquisition of Class A Ordinary Shares and Warrants in Horizon Quantum Holdings Ltd. following a business combination.

Schedule 13D - Activist Investments

NASDAQ
Peak XV Partners entities collectively hold a 20.3% stake in Horizon Quantum Holdings Ltd. following a business combination.
NASDAQ
Quantum computing firm IonQ has disclosed a significant 13.3% beneficial ownership stake in Horizon Quantum Holdings Ltd. following a strategic investment tied to Horizon's recent De-SPAC transaction.
NASDAQ
Horizon Quantum Holdings Ltd. filed a Schedule 13D detailing CEO Joseph Fitzsimons' 38.3% beneficial ownership and an indemnification agreement protecting him as a director and officer.
NASDAQ
Harry L. You and dMY Squared Sponsor, LLC report significant beneficial ownership in Horizon Quantum Holdings Ltd. following a completed business combination.

Schedule 13G - Passive Investments

NASDAQ
Tencent Holdings Ltd. and its subsidiary THL A12 Limited have reported an increased beneficial ownership of Horizon Quantum Holdings Ltd.'s Class A Ordinary Shares, now holding 11.1% of the outstanding shares.
NASDAQ
Millennium Management and affiliates report a reduction in their beneficial ownership of Horizon Quantum Holdings Ltd. shares to below the 5% threshold.
NASDAQ
Tencent Holdings Limited and its subsidiary THL A12 Limited have disclosed a 13.1% beneficial ownership stake in Horizon Quantum Holdings Ltd.'s Class A Ordinary Shares.