Recent insider trading activity from Tan Si-Hui, including buys and sells reported to the SEC.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 19, 2026 | Horizon Quantum Holdings Ltd. | $HQ | Tan Si-Hui | Chief Science Officer | A | Stock Option (Right to Buy) | 500000 | $0.00 | 500,000.0000 | 0 | 9999.99% | 0.00% |