David Jiang

CIK 2090185 · View on SEC EDGAR ↗

Insider Activist

First SEC filing: Nov. 12, 2025 · Latest: Nov. 12, 2025

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Insider at

Insider transactions

1 buys (P) 0 sells (S) Net: $50,050 + 1 non-open-market transaction below Avg return of open purchases vs now: -46.9% 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

1 other filing hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
June 18, 2026 NTRP P 18,200 $2.75 $50,050 1,582,157 Direct +1.16% Acquired -46.9% (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
June 18, 2026 NTRP Warrants for Common Stock [F1] Common Stock (18,200) $2.75 June 18, 2029 18,200 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