Feng Deng
CIK 1165399 · 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)
0 sells (S)
Net:
$0
+ 6 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
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| July 22, 2021 | CTKB | C | 443,800 | — | — | 0 Indirect | -100.00% | Disposed | (price as of 2026-08-19) |
| July 22, 2021 | CTKB | C | 4,168,777 | — | — | 0 Indirect | -100.00% | Disposed | (price as of 2026-08-19) |
| July 22, 2021 | CTKB | C | 147,933 | — | — | 0 Indirect | -100.00% | Disposed | (price as of 2026-08-19) |
| July 22, 2021 | CTKB | C | 443,800 | — | — | 443,800 Indirect | — | Acquired | (price as of 2026-08-19) |
| July 22, 2021 | CTKB | C | 4,168,777 | — | — | 4,168,777 Indirect | — | Acquired | (price as of 2026-08-19) |
| July 22, 2021 | CTKB | C | 147,933 | — | — | 147,933 Indirect | — | Acquired | (price as of 2026-08-19) |
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 |
|---|---|---|---|---|---|---|---|
| July 22, 2021 | CTKB | Series D Preferred Stock | Common Stock (443,800) | — | — | 443,800 | Disposed |
| July 22, 2021 | CTKB | Series C Preferred Stock | Common Stock (4,168,777) | — | — | 4,168,777 | Disposed |
| July 22, 2021 | CTKB | Series A Preferred Stock | Common Stock (147,933) | — | — | 147,933 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 6 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 18, 2026 | BNR | Ordinary Shares | 10,542,529 | Indirect |
| March 18, 2026 | BNR | Ordinary Shares | 1,188,025 | Indirect |
| March 18, 2026 | BNR | Ordinary Shares | 149,691 | Indirect |
| July 22, 2021 | CTKB | Series A Preferred Stock→ Common Stock (147,933) | 147,933 | Indirect |
| July 22, 2021 | CTKB | Series C Preferred Stock→ Common Stock (4,168,777) | 4,168,777 | Indirect |
| July 22, 2021 | CTKB | Series D Preferred Stock→ Common Stock (443,800) | 443,800 | Indirect |