David Jiang
Insider
Activist
First SEC filing: Nov. 12, 2025 · Latest: Nov. 12, 2025
Insider at
Insider transactions
1 buys (P)
0 sells (S)
Net: $50,050
Avg return of open purchases vs now: -29.1%
Price change vs current quote, 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 |
|---|---|---|---|---|---|---|---|---|---|
| June 18, 2026 | NTRP | C | 18,200 | · | · | 92,289 Direct | +24.57% | Acquired | (price as of 2026-10-02) |
| June 18, 2026 | NTRP | P | 18,200 | $2.75 | $50,050 | 1,582,157 Direct | +1.16% | Acquired | -29.1% (price as of 2026-10-02) |
| Nov. 21, 2025 | NTRP | C | 659,316 | · | · | 1,561,958 Direct | +73.04% | Acquired | (price as of 2026-10-02) |
| Nov. 21, 2025 | NTRP | C | 427,528 | · | · | 0 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 21, 2025 | NTRP | C | 231,788 | · | · | 0 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 4, 2025 | NTRP | J | 127,186 | $1.96 | $249,285 | 902,642 Direct | +16.40% | Acquired | -0.5% (price as of 2026-10-02) |
| Nov. 4, 2025 | NTRP | J | 127,186 | $1.96 | $249,285 | 862,216 Direct | +17.30% | Acquired | -0.5% (price as of 2026-10-02) |
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 18, 2026 | NTRP | Warrants for Common Stock [F1] | Common Stock | $2.75 | June 18, 2029 | 18,200 | Acquired |
| Nov. 21, 2025 | NTRP | Series I Nonvoting Convertible Preferred Stock | Common Stock | · | · | 427,528 | Acquired |
| Nov. 21, 2025 | NTRP | Series J Nonvoting Convertible Preferred Stock | Common Stock | · | · | 231,788 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 8 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Nov. 12, 2025 | NTRP | Common Stock | 777,455 | Direct |
| Nov. 12, 2025 | NTRP | Series I Nonvoting Convertible Preferred Stock | 427,528 | Direct |
| Nov. 12, 2025 | NTRP | Series J Nonvoting Convertible Preferred Stock | 231,788 | Direct |
| Nov. 12, 2025 | NTRP | Warrants to purchase 74,089 shares of Common Stock | 74,089 | Direct |
| Nov. 6, 2025 | NTRP | Common Stock | 735,030 | Direct |
| Nov. 6, 2025 | NTRP | Series I Nonvoting Convertible Preferred Stock | 427,528 | Direct |
| Nov. 6, 2025 | NTRP | Series J Nonvoting Convertible Preferred Stock | 231,788 | Direct |
| Nov. 6, 2025 | NTRP | Warrants to purchase 74,089 shares of Common Stock | 74,089 | Direct |