Dongfang Liu
Insider
First SEC filing: July 19, 2022 · Latest: July 19, 2022
Insider at
Insider transactions
0 buys (P)
7 sells (S)
Net: $-1,866,900
Price change vs the latest weekly close (updated to the current quote in your browser when available), split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| April 17, 2026 | NUVB | M | 50,000 | $1.94 | $97,000 | 68,000 Direct | +277.78% | Acquired | 135.6% (price as of ) |
| April 17, 2026 | NUVB | S 10b5-1 | 50,000 | $5.02 | $251,000 | 18,000 Direct | -73.53% | Disposed | -9.0% (price as of ) |
| April 17, 2026 | NUVB | M | 50,000 | · | · | 430,000 Direct | -10.42% | Disposed | |
| Feb. 27, 2026 | NUVB | A | 748,130 | · | · | 748,130 Direct | · | Acquired | |
| Dec. 1, 2025 | NUVB | M | 150,000 | $2.93 | $439,500 | 168,000 Direct | +833.33% | Acquired | 56.0% (price as of ) |
| Dec. 1, 2025 | NUVB | S | 150,000 | $7.82 | $1,173,000 | 18,000 Direct | -89.29% | Disposed | -41.6% (price as of ) |
| Dec. 1, 2025 | NUVB | M | 150,000 | · | · | 165,000 Direct | -47.62% | Disposed | |
| Nov. 26, 2025 | NUVB | M | 10,000 | $3.61 | $36,100 | 28,000 Direct | +55.56% | Acquired | 26.6% (price as of ) |
| Nov. 26, 2025 | NUVB | S | 10,000 | $8.00 | $80,000 | 18,000 Direct | -35.71% | Disposed | -42.9% (price as of ) |
| Nov. 26, 2025 | NUVB | M | 10,000 | · | · | 470,000 Direct | -2.08% | Disposed | |
| Nov. 25, 2025 | NUVB | M | 10,000 | $3.61 | $36,100 | 28,000 Direct | +55.56% | Acquired | 26.6% (price as of ) |
| Nov. 25, 2025 | NUVB | S | 10,000 | $7.50 | $75,000 | 18,000 Direct | -35.71% | Disposed | -39.1% (price as of ) |
| Nov. 25, 2025 | NUVB | M | 10,000 | · | · | 480,000 Direct | -2.04% | Disposed | |
| Nov. 20, 2025 | NUVB | M | 20,000 | $1.87 | $37,400 | 38,000 Direct | +111.11% | Acquired | 144.4% (price as of ) |
| Nov. 20, 2025 | NUVB | S | 20,000 | $7.00 | $140,000 | 18,000 Direct | -52.63% | Disposed | -34.7% (price as of ) |
| Nov. 20, 2025 | NUVB | M | 20,000 | · | · | 450,000 Direct | -4.26% | Disposed | |
| Nov. 19, 2025 | NUVB | M | 15,000 | $1.87 | $28,050 | 30,000 Direct | +100.00% | Acquired | 144.4% (price as of ) |
| Nov. 19, 2025 | NUVB | S | 15,000 | $5.10 | $76,500 | 18,000 Direct | -45.45% | Disposed | -10.4% (price as of ) |
| Nov. 19, 2025 | NUVB | M | 15,000 | · | · | 470,000 Direct | -3.09% | Disposed | |
| Nov. 17, 2025 | NUVB | M | 15,000 | $1.87 | $28,050 | 30,000 Direct | +100.00% | Acquired | 144.4% (price as of ) |
| Nov. 17, 2025 | NUVB | S | 15,000 | $4.76 | $71,400 | 15,000 Direct | -50.00% | Disposed | -4.0% (price as of ) |
| Nov. 17, 2025 | NUVB | M | 15,000 | · | · | 485,000 Direct | -3.00% | Disposed | |
| May 2, 2025 | NUVB | M | 20,000 | $1.94 | $38,800 | 32,000 Direct | +166.67% | Acquired | 135.6% (price as of ) |
| May 2, 2025 | NUVB | S 10b5-1 | 20,000 | $2.50 | $50,000 | 12,000 Direct | -62.50% | Disposed | 82.8% (price as of ) |
| May 2, 2025 | NUVB | M | 20,000 | $1.94 | $38,800 | 480,000 Direct | -4.00% | Disposed | |
| Feb. 28, 2025 | NUVB | A | 500,000 | · | · | 500,000 Direct | · | Acquired | |
| Feb. 29, 2024 | NUVB | A | 500,000 | · | · | 500,000 Direct | · | Acquired | |
| Feb. 28, 2023 | NUVB | A | 500,000 | · | · | 500,000 Direct | · | Acquired | |
| Aug. 29, 2022 | NUVB | A | 315,000 | · | · | 315,000 Direct | · | Acquired | |
| July 15, 2022 | NUVB | A | 490,000 | · | · | 490,000 Direct | · | Acquired | |
| July 15, 2022 | NUVB | A | 292,500 | · | · | 292,500 Direct | · | Acquired |
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 |
|---|---|---|---|---|---|---|---|
| April 17, 2026 | NUVB | Stock Option (Right to Buy) | Class A Common Stock | $1.94 | Feb. 27, 2033 | 50,000 | Disposed |
| Feb. 27, 2026 | NUVB | Stock Option (Right to Buy) | Class A Common Stock | $5.91 | Feb. 26, 2036 | 748,130 | Acquired |
| Dec. 1, 2025 | NUVB | Stock Option (Right to Buy) | Class A Common Stock | $2.93 | Aug. 28, 2032 | 150,000 | Disposed |
| Nov. 26, 2025 | NUVB | Stock Option (Right to Buy) | Class A Common Stock | $3.61 | July 14, 2032 | 10,000 | Disposed |
| Nov. 25, 2025 | NUVB | Stock Option (Right to Buy) | Class A Common Stock | $3.61 | July 14, 2032 | 10,000 | Disposed |
| Nov. 20, 2025 | NUVB | Stock Option (Right to Buy) | Class A Common Stock | $1.87 | Feb. 27, 2034 | 20,000 | Disposed |
| Nov. 19, 2025 | NUVB | Stock Option (Right to Buy) | Class A Common Stock | $1.87 | Feb. 27, 2034 | 15,000 | Disposed |
| Nov. 17, 2025 | NUVB | Stock Option (Right to Buy) | Class A Common Stock | $1.87 | Feb. 27, 2034 | 15,000 | Disposed |
| May 2, 2025 | NUVB | Stock Option (Right to Buy) | Class A Common Stock | $1.94 | Feb. 27, 2033 | 20,000 | Disposed |
| Feb. 28, 2025 | NUVB | Stock Option (Right to Buy) | Class A Common Stock | $1.97 | Feb. 27, 2035 | 500,000 | Acquired |
| Feb. 29, 2024 | NUVB | Stock Option (Right to Buy) | Class A Common Stock | $1.87 | Feb. 27, 2034 | 500,000 | Acquired |
| Feb. 28, 2023 | NUVB | Stock Option (Right to Buy) | Class A Common Stock | $1.94 | Feb. 27, 2033 | 500,000 | Acquired |
| Aug. 29, 2022 | NUVB | Stock Option (Right to Buy) | Class A Common Stock | $2.93 | Aug. 28, 2032 | 315,000 | Acquired |
| July 15, 2022 | NUVB | Stock Option (Right to Buy) | Common Stock | $3.61 | July 14, 2032 | 490,000 | Acquired |
| July 15, 2022 | NUVB | Stock Option (Right to Buy) | Common Stock | $3.61 | July 14, 2032 | 292,500 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| July 19, 2022 | NUVB | No securities owned. | 0 | Direct |
Holdings reported on Form 4 2 reported holdings
Positions listed on each Form 4 without a transaction in that filing (Table I and II holdings), newest filing first.