Sean Wuxiong Cao
CIK 2109966 · View on SEC EDGAR ↗
Insider
First SEC filing: March 18, 2026 · Latest: March 18, 2026
On this page
Insider at
Insider transactions
0 buys (P)
1 sells (S)
Net:
$-42,584
+ 2 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
2 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 14, 2026 | NBP | S | 21,399 | $1.99 | $42,584 | 35,073 Direct | -37.89% | Disposed | -0.7% (price as of 2026-08-21) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| June 22, 2026 | NBP | 2025 Employee Share Option (right to buy) | Ordinary Shares [F4] | — | June 22, 2036 | 181,290 | Acquired |
| June 22, 2026 | NBP | Restricted Share Units | Ordinary Shares [F4] | — | — | 181,280 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 4 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 18, 2026 | NBP | Ordinary Shares [F1] | 56,472 | Direct |
| March 18, 2026 | NBP | 2025 Employee Share Option (right to buy)→ Ordinary Shares [F1] | — | Direct |
| March 18, 2026 | NBP | 2025 Employee Share Option (right to buy)→ Ordinary Shares [F1] | — | Direct |
| March 18, 2026 | NBP | Restricted Share Units→ Ordinary Shares [F1] | — | Direct |